[appengine-java] SAP SECKEY generation procedure required in java

[aptest1 actiprocess]

can i validate the sap url seckey in java, using the url parameters

Thanks in advance
chandrashaker gattu

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[appengine-java] Re: open source pdf engine for GAE

[Patou]

Hello

In App Engine, You can't write a file to the file system. Otherwise
the save method can't be used in GAE.
Use this code to send the pdf to the navigator :

pdf.wrap();

String fileName = Example_03.pdf;

resp.setContentType(application/pdf);
resp.setHeader(Content-Disposition, attachment; filename=\ +
fileName + \);
ServletOutputStream outs = resp.getOutputStream();
pdf.getData().writeTo(outs);

Or to save to the datastore :
new Blob(pdf.getData().toByteArray());

Bests Regards

Patrice

On Apr 20, 4:18 am, jeno jeno...@gmail.com wrote:
 Hi François ,

 Thanks for your help. I have used PDFjet (PDFJet.jar  version 2.72)
 PDF class missing save method
 So i cant call pdf.save(d.pdf) method.

 Cheers
 jeno

 On Apr 19, 6:48 pm, François Masurel fm2...@mably.com wrote:





  Hi Jeno,

  You can try the PDFjet Open Source Edition 
  :http://pdfjet.com/os/edition.html

  François

  On 19 avr, 01:55, jeno jeno...@gmail.com wrote:

   Hi Guys,

   Anyone know open source java  pdf engine for GAE.

   Thanks
   Jeno

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[appengine-java] Can not send mails

[Sudhir Ramanandi]

Hello mods,

I subscribed since two days, Still my messages aren't delivered to group.
Please do the needful and approve my message.


SN

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[appengine-java] Re: Slow app JVM wake - even with no data store access?

[Pelle Poluha]

Would it make a difference to trim the jar files? I've noted that twig
has a dependency on google collections, a jar file measuring 500k. It
is possible to reduce that jar file and only include the needed
classes. I guess it could be done for the rest of the jar files too.

On 20 Apr, 05:13, Blake Caldwell blakecaldw...@gmail.com wrote:
 I guess it is what it is. I don't consider myself lucky though,
 because I spent three weeks migrating from JDO :). Yeah, Spring is
 great and all, and would work just fine on a huge site on App Engine,
 but the documentation should be clear about how much time should be
 expected for each of the common frameworks out there. That would leave
 a lot fewer OMGWTFBBQ!!! responses from developers that sack
 weeks/months of their time into their projects.

 Sent from my iPad

 On Apr 19, 2010, at 11:07 PM, Jeff Schnitzer j...@infohazard.org wrote:





  3-4s is pretty close to as good as it gets to start a JVM, load your
  app, and begin serving pages.  I've seen 2s load times but 3-4s is
  pretty typical.

  Consider yourself lucky!  The poor souls running Spring apps usually
  wait 15s+ for cold starts...

  Jeff

  On Mon, Apr 19, 2010 at 4:58 PM, Blake blakecaldw...@gmail.com wrote:
  I switched from JDO to twig-persist to save load time, and it seemed
  to help a bit, but I'm still seeing 3-4 second load times on servlet
  calls that don't even touch the datastore.  Wow.

  Of course, after the JVM loads, it's super-fast... but that first hit
  after a few minutes of inactivity - wow... not good.

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[appengine-java] Re: One - Many Child Persistence help

[DeliveryNinja]

if(event.getSource() == submit){
boolean error = false;
if(getContent() == null || getContent() == ){
errorComment.setVisible(true);
error = true;
}

if(!error){
Content c = content.getContent();

Comment comment = new Comment(getContent());

comment.setUser(AuthenticationInfo.getUserName());
comment.setApproved(true); //TODO this will 
have to be updated
c.addComment(comment);

contentService.saveContentWidget(c, new 
AsyncCallbackContent() {
public void onFailure(Throwable error){
Window.alert(Comment Failed);
}
public void onSuccess(Content ignore){
Window.alert(Successfully 
added comment);
}
});

content.closeCommentForm();
txt_Area.setText();
errorComment.setVisible(false);




Here is the server side code

public Content saveContentWidget(Content content) {
PersistenceManager pm = getPersistenceManager();
try{
//Content persistentContent = 
pm.makePersistent(content);
ServerContent sc = new ServerContent(content);

ServerContent persistentContent = pm.makePersistent(sc);
return persistentContent.getContent();

} finally {
pm.flush();
pm.close();
}
}

This is the code that enters the onFailure method. I don't get
anything in the stack trace on the console and when I debug in the
Throwable error the error only contains the error message
com.google.gwt.user.client.rpc.SerializationException, the properties
for stack and description are both null. The only field that is not
populated is the key on the comments because they have never been
saved before.

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[appengine-java] Re: One - Many Child Persistence help

[datanucleus]

Yes, but every exception has a stack trace. Every one. Catch the
exception and call e.printStackTrace(). Knowing which of your method
calls results in the exception is the only answer.

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[appengine-java] Re: One - Many Child Persistence help

[DeliveryNinja]

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161),
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116), com.google.gwt.user.client.ui.Widget.onBrowserEvent(Widget.java:
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com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:
71),
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
157),

[appengine-java] Re: One - Many Child Persistence help

[DeliveryNinja]

[com.google.gwt.user.client.rpc.impl.SerializerBase.check(SerializerBase.java:
161),
com.google.gwt.user.client.rpc.impl.SerializerBase.serialize(SerializerBase.java:
145),
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199),
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:
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43),
com.google.gwt.user.client.rpc.core.java.util.ArrayList_CustomFieldSerializer.serialize(ArrayList_CustomFieldSerializer.java:
36), sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method),
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157),
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1713),
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507),
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284),
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107), com.google.gwt.user.client.rpc.impl.SerializerBase$MethodMap
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54),
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1), com.google.gwt.event.shared.HandlerManager
$HandlerRegistry.fireEvent(HandlerManager.java:65),
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$1(HandlerManager.java:53),
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178), com.google.gwt.user.client.ui.Widget.fireEvent(Widget.java:52),
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116), com.google.gwt.user.client.ui.Widget.onBrowserEvent(Widget.java:
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com.google.gwt.user.client.DOM.dispatchEvent(DOM.java:1263),
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java.lang.reflect.Method.invoke(Unknown Source),
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71),
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
157),

[appengine-java] Re: One - Many Child Persistence help

[DeliveryNinja]

[com.google.gwt.user.client.rpc.impl.SerializerBase.check(SerializerBase.java:
161),
com.google.gwt.user.client.rpc.impl.SerializerBase.serialize(SerializerBase.java:
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129),
com.google.gwt.user.client.rpc.core.java.util.Collection_CustomFieldSerializerBase.serialize(Collection_CustomFieldSerializerBase.java:
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54),
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71),
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
157),

Re: [appengine-java] Re: One - Many Child Persistence help

[Chau Huynh]

On Tue, Apr 20, 2010 at 5:48 PM, DeliveryNinja noble1...@googlemail.comwrote:

 It seems that having any data in the ListComment comments in the
 Content.java causes the serialization error. Even when I've removed
 all the data from the Serializable class Comment.java. So it has
 nothing but a constructor.


In this post, Max Ross of Google explained on serialized fields and wrapper
of List. Maybe his advise can help you
http://groups.google.com/group/google-appengine-java/browse_thread/thread/747ceed8396c0ed8/10ccdd1a0c376825

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[appengine-java] Re: One - Many Child Persistence help

[DeliveryNinja]

I've taken a look at that code. I can't see any differences between
what i'm doing and what is in that other post. Its driving me nuts
lol.

So i've got two serializable classes and one contains a list to the
other and it just does not want to pass this to my service without
throwing this error message.

I may start a new project from scratch and see if I can get something
to work from there.

Thanks for the quick replies much appreciated.

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[appengine-java] Re: One - Many Child Persistence help

[datanucleus]

 So i've got two serializable classes and one contains a list to the
 other and it just does not want to pass this to my service without
 throwing this error message.

So raise it on the GWT group. It's their software causing the problem.

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[appengine-java] Re: One - Many Child Persistence help

[DeliveryNinja]

I did the tutorial project and I have that working with one-many. I
guess I can work from here!

Thanks guys.

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[appengine-java] Re: Slow app JVM wake - even with no data store access?

[Peter Ondruska]

Actually there are lots of jar files coming with appengine with
uncompressed content what could save megabytes of data (http://
groups.google.com/group/google-appengine-java/browse_thread/thread/
0bce0adc3ace4d94#). But I am not sure what effect this can have on JVM
startup in GAE/J--if it is less expensive/faster to go use more CPU
cycles to uncompress or to save CPU and use more IO for reads (I would
expect some kind of IO cache being used on the machines there. Peter

On Apr 20, 9:29 am, Pelle Poluha mbo...@gmail.com wrote:
 Would it make a difference to trim the jar files? I've noted that twig
 has a dependency on google collections, a jar file measuring 500k. It
 is possible to reduce that jar file and only include the needed
 classes. I guess it could be done for the rest of the jar files too.

 On 20 Apr, 05:13, Blake Caldwell blakecaldw...@gmail.com wrote:





  I guess it is what it is. I don't consider myself lucky though,
  because I spent three weeks migrating from JDO :). Yeah, Spring is
  great and all, and would work just fine on a huge site on App Engine,
  but the documentation should be clear about how much time should be
  expected for each of the common frameworks out there. That would leave
  a lot fewer OMGWTFBBQ!!! responses from developers that sack
  weeks/months of their time into their projects.

  Sent from my iPad

  On Apr 19, 2010, at 11:07 PM, Jeff Schnitzer j...@infohazard.org wrote:

   3-4s is pretty close to as good as it gets to start a JVM, load your
   app, and begin serving pages.  I've seen 2s load times but 3-4s is
   pretty typical.

   Consider yourself lucky!  The poor souls running Spring apps usually
   wait 15s+ for cold starts...

   Jeff

   On Mon, Apr 19, 2010 at 4:58 PM, Blake blakecaldw...@gmail.com wrote:
   I switched from JDO to twig-persist to save load time, and it seemed
   to help a bit, but I'm still seeing 3-4 second load times on servlet
   calls that don't even touch the datastore.  Wow.

   Of course, after the JVM loads, it's super-fast... but that first hit
   after a few minutes of inactivity - wow... not good.

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[appengine-java] Re: Query for children of entity with JDO

[timwhunt]

Thanks for both suggestions.  datanucleus is including the parent as
an object in each child:

 So do a JDOQL query for the elements
 pm.newQuery(SELECT FROM MyElement WHERE myParent == :parent);
 and pass in the parent object, and add on any other filter
 requirements.

That sounds to me like it would end up being a bidirectional
relationship with the children stored in a collection property of the
parent (that's what establishes the parent/child relationship), but
each child also stores the parent object in a property so it can be
queried.  Seems like a fundamental Java issue (I should know) but is
there a problem in Java to store a Child object as a property of a
parent object, but then also store that parent object as a property of
the child?  These aren't pointers to objects, but actual objects
right?  Would it be better to just store the key of the parent in the
child as hsjawanda suggests?  I'll have to look at the examples again.

I would like deleting the parent to automatically result in deleting
the multiple children.  But I don't want deleting the children to
result in deleting the parent.

Regards,
Tim

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[appengine-java] What is the best way to store child object?

[ailinykh]

Hello, everybody!
I have simple one to many owned relationship:
...
class MyList{
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
@Persistent(mappedBy=myList)
@Element(dependent = true)
ListItem items;
  ...
}


class Item{
   @PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key id;
   @Persistent
   MyList myList;
  ...
}

When I add new Item I do

tx.begin();

Key key = getParentKey();
MyList myList = pm.getObjectById(MyList.class, key);

Item item = new Item();
item.setMyList(myList);
myList.items.add(item);

tx.commit();

It works. But there are couple things which bother me. First at all,
there is some extra job here. I actually don't need instance of parent
class (MyList).
I have the parent key. Theoretically speaking, it is the only thing
needed to maintain parent child relationship. MyList class may have
more fields I don't need at all. So, I'd like to avoid reading them to
memory.
Second concern is about line

myList.items.add(item);

what if MyList already has million of items? How efficient is add
operation in this case?

Any thoughts? Is it possible to store child object using parent key
only?

Thank you,
  Andrey

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[appengine-java] JAXB problem No Source code is available for type javax.xml.bind.JAXBContext

[RB]

Hello,
I create a very simple application that should be parse an xml and
display some info on a popup. But when I run it on my pc I have this
message:
Line 114: No source code is available for type
javax.xml.bind.JAXBContext; did you forget to inherit a required
module?

I have added all the jar libraries needed, in fact I have created a
parallel project to use only the JAXB to parse the file and it works.
I read also some post on this group in which there is written to use
the JAXB version 2.1.12 instead of 2.2, and I did it, without success.
Does anybody know the reason?
Please help me!
Thanks in advance.

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[appengine-java] Re: JDP, get objects by id

[Timofey Koolin]

I tried it:

ListDBObjectAccessaccessList = (ListDBObjectAccess)
query.execute(user.getKey());
ArrayListKey ids = new ArrayListKey();
...
query = pm.newQuery(DBPurchaseItem.class,
:idCollection.contains(id));
ListDBPurchase dPurchases = (ListDBPurchase)query.execute(ids);

and catch Exception:
org.datanucleus.store.appengine.query.DatastoreQuery
$UnsupportedDatastoreFeatureException

Problem with query SELECT FROM
ru.abc_software.shoplist.server.data.DBPurchaseItem
WHERE :idCollection.contains(id): Unsupported method contains while
parsing expression:
InvokeExpression{[ParameterExpression{idCollection}].contains(VariableExpression{id})}

On 18 апр, 12:59, datanucleus andy_jeffer...@yahoo.com wrote:
   Is exsists any other way to get objects by one query from program, if
   I don't sure in exsists every of it?

 Errm, a JDOQL query perhaps

 SELECT FROM mydomain.MyClass WHERE :idCollection.contains(id)

 and pass in a collection containing the ids of the objects you need.

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[appengine-java] Re: JDP, get objects by id

[Timofey Koolin]

It's my mistake - in my class primary key names key instead of id;

On 20 апр, 19:35, Timofey Koolin timo...@koolin.ru wrote:
 I tried it:

 ListDBObjectAccessaccessList = (ListDBObjectAccess)
 query.execute(user.getKey());
 ArrayListKey ids = new ArrayListKey();
 ...
 query = pm.newQuery(DBPurchaseItem.class,
 :idCollection.contains(id));
 ListDBPurchase dPurchases = (ListDBPurchase)query.execute(ids);

 and catch Exception:
 org.datanucleus.store.appengine.query.DatastoreQuery
 $UnsupportedDatastoreFeatureException

 Problem with query SELECT FROM
 ru.abc_software.shoplist.server.data.DBPurchaseItem
 WHERE :idCollection.contains(id): Unsupported method contains while
 parsing expression:
 InvokeExpression{[ParameterExpression{idCollection}].contains(VariableExpre 
 ssion{id})}

 On 18 апр, 12:59, datanucleus andy_jeffer...@yahoo.com wrote:

Is exsists any other way to get objects by one query from program, if
I don't sure in exsists every of it?

  Errm, a JDOQL query perhaps

  SELECT FROM mydomain.MyClass WHERE :idCollection.contains(id)

  and pass in a collection containing the ids of the objects you need.

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[appengine-java] Create Google App Engine ID Programmatically

[formtester]

Hi,
I'm trying to log in to Google App Engine with my Google Account, and
I was wondering if it's possible to do this programmatically.
I want to retrieve all the App ID that I have in Google App Engine
(https://appengine.google.com/) through my application (written in
Java).

What kind of authentication would be needed to do this? Can I use
ClientLogin for this?

Thanks!!

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[appengine-java] Reg. Data store update query

[Sumeet Kumar]

I'm working with google app engine data store and not sure how to use
update query here.

I tried deleting and inserting the updated data but it is throwing an
exception that primary key value being changed and no where in the
docs is there any mention of query for updation of the data. If there
is some document related to update query then probably I've missed
that.
How to update some existing data in datastore post an example or any
link.

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[appengine-java] Re: org.datanucleus.store.appengine.query.DatastoreQuery$2

[mini998]

Hi, I have the same problem

I think its due to the result set being not serialized

do not know how to serialize the result set before putting it to
session


any ideas thanks in advance



On Apr 19, 9:52 pm, CodeMan chinu...@yahoo.com wrote:
 Hi,

 I am getting the error below in a JSF app when I try to fetch a
 ListTemplate.

 Using this code:
             PersistenceManager pm =
 PMF.get().getPersistenceManager();//
             String query = select from  + Template.class.getName() + 
 where owner=='+owner+' ;
             this.templates = (ListTemplate) pm.newQuery(query).execute();

 Can you help figure out what's causing it.

 Thanks.

 #

    1.
       04-19 01:42PM 52.901 /pages/newcbx.faces 500 18322ms 24015cpu_ms
 40api_cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
 1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
 3.5.30729),gzip(gfe)
       See details

       98.229.74.17 - - [19/Apr/2010:13:43:11 -0700] POST /pages/
 newcbx.faces HTTP/1.1 500 0 http://ezcomment.appspot.com/pages/
 dusers.faces Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
 1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
 3.5.30729),gzip(gfe) ezcomment.appspot.com

    2.
       W 04-19 01:43PM 02.874

       [ezcomment/1.341368964543160070].stderr: SystemId Unknown;
 Line #57; Column #31; Failed calling setMethod method

    3.
       W 04-19 01:43PM 03.367

       [ezcomment/1.341368964543160070].stderr: SystemId Unknown;
 Line #57; Column #31; Failed calling setMethod method

    4.
       W 04-19 01:43PM 11.177

       /pages/newcbx.faces
       java.lang.RuntimeException: java.io.NotSerializableException:
 org.datanucleus.store.appengine.query.DatastoreQuery$2
         at
 com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager 
 .java:
 361)
         at
 com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(S 
 essionManager.java:
 341)
         at com.google.apphosting.runtime.jetty.SessionManager
 $AppEngineSession.save(SessionManager.java:162)
         at
 com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionF 
 ilter.java:
 41)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(Trans 
 actionCleanupFilter.java:
 43)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
 388)
         at
 org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
 216)
         at
 org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
 182)
         at
 org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
 765)
         at
 org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
         at
 com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionH 
 andlerMap.java:
 238)
         at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 152)
         at org.mortbay.jetty.Server.handle(Server.java:326)
         at
 org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
 542)
         at org.mortbay.jetty.HttpConnection
 $RequestHandler.headerComplete(HttpConnection.java:923)
         at
 com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequ 
 estParser.java:
 76)
         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:
 404)
         at
 com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceReques 
 t(JettyServletEngineAdapter.java:
 135)
         at
 com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
 243)
         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
 $6.handleBlockingRequest(RuntimePb.java:5485)
         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
 $6.handleBlockingRequest(RuntimePb.java:5483)
         at
 com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingAp 
 plicationHandler.java:
 24)
         at
 com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:398)
         at com.google.net.rpc.impl.Server$2.run(Server.java:852)
         at
 com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
 56)
         at
 com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpa 
 nBuilder.java:
 536)
         at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
         at com.google.net.rpc.impl.Server.processRequest(Server.java:
 369)
         at
 com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.j 
 ava:
 442)
         at
 com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:
 319)
         at
 com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:
 290)
         at
 com.google.net.async.Connection.handleReadEvent(Connection.java:474)
         

[appengine-java] Re: org.datanucleus.store.appengine.query.DatastoreQuery$2

[mini998]

Hi,

Did you figure out the problem ? I have the exact same error when i
deploy my app it runs fine locally though.


PersistenceManager pm = PMF.get().getPersistenceManager();

ListProject projects = null;

Query query;
if(key==null){
query = pm.newQuery(select from  + 
Project.class.getName());
}
else{
query = pm.newQuery(select from  + 
Project.class.getName()
+  where title = '+ key +' order by 
createDate);
}

try {
//TODO : This should search projects with LIKE operation
projects = (ListProject) query.execute();
} finally {
// pm.close();
}

Planet planet =
(Planet)request.getSession().getAttribute(planet);

if(planet == null){
return false;
}

planet.setProjects(projects);


get this error


/searchProjects.jsp
java.lang.RuntimeException: java.io.NotSerializableException:
org.datanucleus.store.appengine.query.DatastoreQuery$2
at
com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
361)
at
com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(SessionManager.java:
341)
at com.google.apphosting.runtime.jetty.SessionManager
$AppEngineSession.save(SessionManager.java:162)
at
com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:
41)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
43)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
388)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
418)
at
com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:
238)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
542)
at org.mortbay.jetty.HttpConnection
$RequestHandler.headerComplete(HttpConnection.java:923)
at
com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
135)
at
com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
243)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5485)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5483)
at
com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:
24)
at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
398)
at com.google.net.rpc.impl.Server$2.run(Server.java:852)
at
com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
56)
at
com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:
536)
at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
at com.google.net.rpc.impl.Server.processRequest(Server.java:369)
at
com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:
442)
at
com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:
319)
at
com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:
290)
at com.google.net.async.Connection.handleReadEvent(Connection.java:
474)
at
com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:
831)
at
com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:
207)
at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:
103)
at
com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:
251)
at com.google.apphosting.runtime.JavaRuntime
$RpcRunnable.run(JavaRuntime.java:404)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.NotSerializableException:

[appengine-java] Re: Reg. Data store update query

[datanucleus]

 How to update some existing data in datastore post an example or any
 link.

Retrieve an object and update it perhaps ?

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Re: [appengine-java] Re: How to exclude the optional jars for deployment?

[Rajeev Dayal]

Hey Jake,

Thanks for writing this up. Replies inline:

On Thu, Apr 15, 2010 at 1:22 PM, Jake jbrooko...@cast.org wrote:

 Hello,

 Thanks for the help.  This is quite a long, detailed post, but
 hopefully it will help generate some documentation.

 I started by making an exact copy of an existing Maven/GAE project
 that I've been working on.  The pom.xml file for that project has a
 few build commands that run embedded ANT scripts that call the
 executables in the SDK direcotry that either run the instance locally
 or deploy it.  Everything is done within Eclipse.

 So, I've taken that copy, Right Clicked in Eclipse, Google-App Engine
 Settings...

 I check Use Google App Engine and try to set the Application ID, but
 it claims that the appengine-web.xml is missing.  It is currently
 there under src/main/webapp/WEB-INF where the standard Maven would
 place it.  Without the ability at this point to designate where to
 find the file, I'm stuck unless I choose to create a new project
 according to the GPE FAQ.


Hm, I think that if you had chosen to set the This project has a war
directory setting, and set it to src/main/webapp, this error could have
gone away.



 So, I create a new Dynamic Web Project per the FAQ.  I'm not really
 sure what to set for Runtime or Configuration, either because I'm an
 eclipse newb or I'm not entirely certain how this will run in the
 end.  I set that project up, copy over all of my code/resources and
 the pom.xml and enable Maven Dependency Management.  At this point, it
 looks like a clean maven package and I pull out all of my ANT scripts
 from the pom.xml (since I shouldn't need them now).


I think for runtime, they are referring to the server on which your
application will run. The best thing was indeed to select none, because
App Engine's server is not one of the choices. The default configuration is
a good choice too, unless you want to add other stuff, like Web Services,
JSF, etc..

We should improve the doc in our FAQ.


 I'm using Eclipse for Java EE.  Continuing with the FAQ, it talks
 about enabling GWT, which I do not want to do.  Elsewhere, it was
 suggested that I look at the FAQ for users who are not using Eclipse
 for Java EE.


Looks like we need to have some sort of break-out in the FAQ for those users
that are working with App Engine-only projects.



 So, I set the This project has a WAR directory (and, at this point
 realize I could probably have done that on my original application
 without starting from scratch and copying over the files).  I am able
 to enable Google App Engine for this project, but I get a few build
 path errors.  For example, I accidentally selected a missing SDK at
 first.  Selecting the correct path for the SDK in the Google Screen
 didn't seem to remove the previous bad path, so I'm doing that
 manually.  It also complained about the existing GAE files in my
 pom.xml, but did so in a roundabout way.


Couldn't you have gone back to Use Specific SDK, and chosen the one listed
on your build path (instead of having to use one of the SDKs that are
installed with the plugin)?

Can you elaborate on the pom.xml-related problem? Was this GPE reporting an
error, or the Maven plugin?



 I tried doing a Maven Package per the FAQ, but it claimed
 javax.persistence did not exist.  I see geronimo_jpa on the google
 supplied list of resources in my build path, but it's not working?
 Anyways, put it back in my pom.xml and it packaged into the  /target/
 directory.  (At some point, I also removed all folders from ORM
 enhancement since I use Objectify).


How did you end up fixing the problem? Was geronimo_jpa missing from the
pom.xml?



 Finally, I ran as a WebApplication.  On the bright side, I'm getting
 completely different problems now :)  I'm getting files not found:

 javax.xml.parsers.FactoryConfigurationError: Provider
 org.apache.xerces.jaxp.SAXParserFactoryImpl not found
at
 javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:
 113)
at org.mortbay.xml.XmlParser.init(XmlParser.java:69)

 WARNING: Nested in javax.xml.parsers.FactoryConfigurationError:
 Provider org.apache.xerces.jaxp.SAXParserFactoryImpl not found:
 java.lang.ClassNotFoundException: org/apache/xerces/jaxp/
 SAXParserFactoryImpl
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)

 I'm not an expert on XML parsing - it's a small miracle I got it
 working in the first place under my old deployment methods.  Here are
 my dependencies:

 net.sf.saxon - saxon - 9.1.0.8
 net.sf.saxon - saxon-dom - 9.1.0.8
 xml-resolver - 1.2
 xml-apis - 1.3.03

 Do I know the difference between Xerces and Saxon?  Nope.  Do I care
 what I use?  Nope.  Do I know if that was even a valid question?
 Nope.  I used Saxon merely because I was getting some errors with
 Xerces back in the day, so I presumed GAE was somehow incompatible.  I
 see this bug report:
 

Re: [appengine-java] simple JPA query too slow

[Ikai L (Google)]

Indexes aren't indexes in the relational sense - indexes mean that they'll
allow your application to find the data in the non-relational datastore.

Query performance locally uses a datastore stub, and the performance of a
read can be dependent on the number of totally entities locally. What is the
performance when deployed?

On Fri, Apr 16, 2010 at 7:36 AM, Jonas Gehring jonas.gehr...@egotec.comwrote:

 Hello.

 Our app is slow. I used a profilier to find the weak point.
 The following query needs about 500ms on my local machine:

 SELECT FROM Employee WHERE account=:mail

 Account is a String field.

 Why is that query so slow?

 I also tried to set an index, but nothing changed:
 datastore-index kind=Employee ancestor=false
property name=account direction=asc /
   /datastore-index


 Could you please help me?

 Thanks.

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Re: [appengine-java] Re: Blob Store service createUploadUrl() and a Dispatcher Servlet

[Don Schwarz]

I'm confused.  What success path is being called?  In the example web.xml
file you attached to the bug, you don't have a servlet mapped to
/uploadComplete so invoking of your DispatcherServlet after the upload
occurs is exactly what I would expect.

Is the problem that once inside your DispatcherServlet, getPathInfo() and/or
getRequestURI() are set to /_ah/upload/* rather than /uploadComplete?  If
so, that sounds like a bug and I can investigate it.

On Wed, Apr 14, 2010 at 7:08 PM, Rahul Ravikumar tikura...@gmail.comwrote:

 On further investigation, the blobstore service actually gets called
 and the upload takes place. However the right success path does not
 seem to get called. When i log into the admin console on DevAppServer,
 i can see the Datastore entities of kind __BlobStore__. The same code
 works correctly on the App Engine environment.

 On Apr 14, 4:58 pm, Rahul Ravikumar tikura...@gmail.com wrote:
  I have verified that this does not happen on the Google App Engine
  environment. Blobstore service works as expected. The problem only
  seems to occur in the DevAppServer.
 
  Is there a servlet that i can map to _ah/upload/* as a workaround on
  the DevAppServer ? Any other suggestions?
 
  On Apr 13, 6:05 pm, Rahul Ravikumar tikura...@gmail.com wrote:
 
   I am seeing the problem on DevAppServer.
 
   On Apr 13, 3:08 pm, Don Schwarz schwa...@google.com wrote:
 
Are you seeing this problem in the DevAppServer or when deployed to
our servers?  (Or both?)
 
On Tue, Apr 13, 2010 at 4:27 PM, Rahul Ravikumar 
 tikura...@gmail.com wrote:
 Are there any workarounds for this issue?
 
 On Apr 12, 7:48 pm, Rahul Ravikumar tikura...@gmail.com wrote:
 I am using DevAppServer -
 
 I have filed an issue :
 http://code.google.com/p/googleappengine/issues/detail?id=3083
 
 You can reproduce the problem using a dispatch servlet and the
 blobstore service together. The blobstore service does not seem to
 handle upload in such cases.
 
 Thanks,
 Rahul
 
 On Apr 12, 7:21 pm, Don Schwarz schwa...@google.com wrote:
 
  It should always dispatch to the more specific URL pattern,
 which in
  this case will be the upload servlet.
 
  Are you seeing this behavior in the DevAppServer or when
 deployed to
  our servers?  Can you file an issue in the issue tracker with an
  appengine-web.xml and web.xml for a reproducible test case?
 
  Thanks,
  Don
 
  On Mon, Apr 12, 2010 at 9:14 PM, Rahul Ravikumar 
 tikura...@gmail.com wrote:
   I have a central dispatcher servlet that has a servlet mapping
 of :
 
servlet-mapping
  servlet-namedispatcher/servlet-name
  url-pattern//url-pattern
/servlet-mapping
 
   When i try to use the blob store service'screateUploadUrl(/
   uploadComplete) it maps to a URL for e.g '/_ah/upload/
   agp0d2VldG15cGljchsLEhVfX0Jsb2JVcGxvYWRTZXNzaW9uX18YEgw'.
 
   Before the Blob store service can handle the upload and
 redirect to /
   uploadComplete; my dispatcher gets called and i am therefore
 not being
   able to upload anything.
 
   Is there a servlet/ filter that i can map to /_ah/upload/* in
 my
   web.xml ?
 
   How do i avoid the dispatcher servlet from getting called
 before the
   Blob store service can do its thing?
 
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Re: [appengine-java] Updating JPA Entities on AppEngine

[Ikai L (Google)]

There's no concept of a global schema for datastore entities, so entities
are responsible for managing defining their own fields. For this reason, you
cannot add fields if your requirement is that they are non-empty without
iterating through each entity and updating it. An alternative solution could
be to version new entities and grandfather old entities, updating them as
they are read if they are not up to date.

I wouldn't say that this isn't a scalable solution. It's only non-scalable
if you are determined to have all your entities share the same fields.
Distributed key-value stores are powerful precisely because they are
effectively typeless, allowing for more flexible strategies to migrate
entity definitions. On a relational database, it's basically doing the same
thing if you set a default value - it's just that the database handles it
for you. Often times this will result in downtime or a degraded state for a
long period of time if you have an enormous dataset.

On Tue, Apr 13, 2010 at 2:01 PM, laserjim laser...@gmail.com wrote:

 Hey,

 So, I define some entity Foo, and create a hundred thousand instances
 of it.  Now I want to add a variable of entity type Bar, and want to
 specify a default value.  Null may be a valid value, but is not the
 default.

 One solution I've seen around the intertubes is to write a script that
 iterates through all the objects in the datastore and manually
 performs the update operations on the untyped records.  This seems non-
 ideal.  Too much developer overhead for minor changes, not clean, and
 not very scalable.

 Are there better solutions, or is this basically the de-facto
 standard?

 Thanks!

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Re: [appengine-java] com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException The response could not be deserialized

[Ikai L (Google)]

I don't believe you can reuse the same classes for both GWT and JDO/JPA. I'm
not sure that you would want to, as you may be exposing some details about
your persistence that a rich client doesn't really need to know.

On Sun, Apr 18, 2010 at 6:19 PM, luka uluk...@gmail.com wrote:

 Hi All,

 I am trying to evaluate GAE + GWT (1.3.2) and I have some issue with
 the detach feature of JDO-2.0. I have a simple service which return
 all questions:

 public ListQuestion getQuestions() {
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
Query query = pm.newQuery(Question.class);
ListQuestion questions =
 (ListQuestion)pm.detachCopyAll((ListQuestion)query.execute());

return questions;
} finally {
pm.close();
}
}

 The Question entity is a Persistent object which defined with
 detachable = true and has a bidirectional one to many relationship
 to an Answer entity (which defined in the same way.

 Unfortunately I started getting the
 IncompatibleRemoteServiceException from yesterday (till than all
 worked well :( ).

 I browsed the forums of Google groups and tried to make some changes
 to make things working like:
 - Implementing from IsSerializable instead of Serializable (on
 entities Question  Answer)
 - Using detachCopyAll

 Nothing seems to make a different.

 I assume the code will work if I will create DTO for each persistent
 entity although I really wish to avoid code duplication, plus that's
 missing some of JDO 2.0 nicest feature

 Question Code:
 


 @PersistenceCapable (detachable = true)
 public class Question implements IsSerializable   {

@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;

@Persistent
private String topic;

@Persistent
private String language;

@Persistent
private String category;

@Persistent
private String experience;

@Persistent
private String difficultLevel;

// Question details

@Persistent
private String title;

@Persistent
private String body;

@Persistent
private String type;

@Persistent
private String image;

@Persistent(mappedBy = question)
private ListAnswer answers;


//@Persistent
//private Author author;


// Classification properties

public Question(){}

public Question(String topic, String language,
String category, String experience, String
 difficultLevel,
String title, String body, String type, String
 image,
ListAnswer answers) {
super();
//this.author = author;
this.topic = topic;
this.language = language;
this.category = category;
this.experience = experience;
this.difficultLevel = difficultLevel;
this.title = title;
this.body = body;
this.type = type;
this.image = image;
this.answers = answers;
}

public Key getKey() {
return key;
}

public void setKey(Key key) {
this.key = key;
}

 //  public Author getAuthor() {
 //  return author;
 //  }
 //
 //  public void setAuthor(Author author) {
 //  this.author = author;
 //  }

public String getTopic() {
return topic;
}

public void setTopic(String topic) {
this.topic = topic;
}

public String getLanguage() {
return language;
}

public void setLanguage(String language) {
this.language = language;
}

public String getCategory() {
return category;
}

public void setCategory(String category) {
this.category = category;
}

public String getExperience() {
return experience;
}

public void setExperience(String experience) {
this.experience = experience;
}

public String getDifficultLevel() {
return difficultLevel;
}

public void setDifficultLevel(String difficultLevel) {
this.difficultLevel = difficultLevel;
}

public String getTitle() {
return title;
}

public void setTitle(String title) {
this.title = title;
}

public String getBody() {
return body;
}

public void setBody(String body) {
this.body = body;
}

public String getType() {
return type;
}

public void setType(String type) {
this.type = 

Re: [appengine-java] What's wrong with my JPA Entity

[Ikai L (Google)]

Are you sure that the entity is being saved?

Can you post your ProfileDAO?

On Mon, Apr 19, 2010 at 9:52 AM, Sudhir Ramanandi sramana...@gmail.comwrote:

 I have just started with GAE+JPA. However I find it difficult to grasp the
 primary key things.
 I have created a very simple entity and a test to verify that the primary
 key is generated automatically.

 Entity

 import java.util.Date;

 import javax.persistence.Basic;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.Temporal;
 import javax.persistence.TemporalType;

 import com.google.appengine.api.datastore.Key;
 import com.szczytowski.genericdao.api.IEntity;

 @Entity
 public class Profile implements IEntityKey {

 @Id
 @GeneratedValue(strategy=GenerationType.IDENTITY)
 private Key _id;

 @Basic
 private int _age;

 @Basic
 @Temporal(TemporalType.DATE)
 private Date _dob;

 public Profile() {
 }

 public Key getId() {
 return _id;
 }

 public void setId(Key id) {
 _id = id;
 }

 public int getAge() {
 return _age;
 }

 public void setAge(int age) {
 _age = age;
 }

 public Date getDob() {
 return _dob;
 }

 public void setDob(Date dob) {
 _dob = dob;
 }
 }


 Test Class

 import java.util.Date;

 import junit.framework.TestCase;

 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.ramanandi.matri.infrastructure.jpa.EMF;

 import
 com.google.appengine.tools.development.testing.LocalDatastoreServiceTestConfig;
 import
 com.google.appengine.tools.development.testing.LocalServiceTestHelper;

 public class ProfileDaoTest extends TestCase {

 private final LocalServiceTestHelper helper = new
 LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());
 private ProfileDao dao = new ProfileDao();


 @Before
 public void setUp() {
 helper.setUp();
 }

 @After
 public void tearDown() {
 helper.tearDown();
 }
 private void doTest() {
 dao.setEntityManager(EMF.get().createEntityManager());
 Profile p = new Profile();
 p.setAge(20);
 p.setDob(new Date());
 dao.save(p);
 assertNotNull(p.getId());


 }

 @Test
 public void testInsert1() {
 doTest();
 }

 }

 ButassertNotNull(p.getId()); fails. Why the primary key is not
 generated automatically? What's wrong.

 Thanks
 SN

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[appengine-java] PdfBox text extraction GAE

[Fabrizio]

If anyone is interested...

PdfBox text extration  GAE
How to do text extraction from pdf files using PdfBox on Google App
Engine
http://fhtino.blogspot.com/2010/04/pdfbox-text-extration-gae.html

fabrizio

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Re: [appengine-java] Persistence, parents and keys

[Ikai L (Google)]

That's correct. First - you should read our documentation about entity
groups. The reason you can't update parents is because the actual key of the
object embeds parent information. For instance, a category key may look like
this:

Category(Mammal)

Subcategories may have keys that decode to the following:

Category(Mammal):SubCategory(Bipedal):SubCategory(Simian)

If you create the categories Bipedal and Simian first, you'll have an
entity with the key:

SubCategory(Bipedal):SubCategory(Simian)

You can't change a key once an object is persisted. It needs to become a new
entity entirely, as keys are immutable. Thus - to place these under the
Category with Mammal as a key, you'll have to create a new object and
destroy the old object.

As a design pattern, generally speaking you should try to create parent
objects first, as you could have an issue where deleting an old category
fails after creating a new one, or vice versa. Since you won't be able to
create a transaction around these objects (they won't be in the same entity
group), you'll end up with either data loss or an orphaned, duplicate
category. This will be rare, though, so it may not make sense to code to
avoid this.

On Tue, Apr 13, 2010 at 4:54 AM, gemma gemmasilv...@googlemail.com wrote:

 Hello!

 I'm currently writing an app where the datamodel has a set of Category
 objects with SubCategory children which represents a classification
 tree.  I've now gotten to the stage where I'm attempting to apply
 these Category and SubCategory objects as attributes of an Item
 object, but am getting an error that says that once an object has been
 persisted, you can't create or modify its parent.

 That's cool, I'm happy to change my Item class so that instead of
 having persistent Category and SubCategory items directly as
 attributes they have the string repesentation of the Category and
 SubCategory keys - but is this an acceptable design approach?

 Any thoughts would be greatly appreciated.

 Thanks!
 Gemma

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[appengine-java] Re: org.datanucleus.store.appengine.query.DatastoreQuery$2

[mini998]

Found the answer,

Have to copy all the contents in the query result to a new list

eg,

projectsTemp = (ListProject) query.execute();
ListProject projects = new ArrayListProject();
projects.addAll(projectsTemp);
planet.setProjects(projects);


hope this helps




On Apr 20, 4:29 pm, mini998 imanthasi...@gmail.com wrote:
 Hi, I have the same problem

 I think its due to the result set being not serialized

 do not know how to serialize the result set before putting it to
 session

 any ideas thanks in advance

 On Apr 19, 9:52 pm, CodeMan chinu...@yahoo.com wrote:



  Hi,

  I am getting the error below in a JSF app when I try to fetch a
  ListTemplate.

  Using this code:
              PersistenceManager pm =
  PMF.get().getPersistenceManager();//
              String query = select from  + Template.class.getName() + 
  where owner=='+owner+' ;
              this.templates = (ListTemplate) pm.newQuery(query).execute();

  Can you help figure out what's causing it.

  Thanks.

  #

     1.
        04-19 01:42PM 52.901 /pages/newcbx.faces 500 18322ms 24015cpu_ms
  40api_cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
  1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
  3.5.30729),gzip(gfe)
        See details

        98.229.74.17 - - [19/Apr/2010:13:43:11 -0700] POST /pages/
  newcbx.faces HTTP/1.1 500 0 http://ezcomment.appspot.com/pages/
  dusers.faces Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
  1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
  3.5.30729),gzip(gfe) ezcomment.appspot.com

     2.
        W 04-19 01:43PM 02.874

        [ezcomment/1.341368964543160070].stderr: SystemId Unknown;
  Line #57; Column #31; Failed calling setMethod method

     3.
        W 04-19 01:43PM 03.367

        [ezcomment/1.341368964543160070].stderr: SystemId Unknown;
  Line #57; Column #31; Failed calling setMethod method

     4.
        W 04-19 01:43PM 11.177

        /pages/newcbx.faces
        java.lang.RuntimeException: java.io.NotSerializableException:
  org.datanucleus.store.appengine.query.DatastoreQuery$2
          at
  com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager 
  .java:
  361)
          at
  com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(S 
  essionManager.java:
  341)
          at com.google.apphosting.runtime.jetty.SessionManager
  $AppEngineSession.save(SessionManager.java:162)
          at
  com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionF 
  ilter.java:
  41)
          at org.mortbay.jetty.servlet.ServletHandler
  $CachedChain.doFilter(ServletHandler.java:1157)
          at
  com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(Trans 
  actionCleanupFilter.java:
  43)
          at org.mortbay.jetty.servlet.ServletHandler
  $CachedChain.doFilter(ServletHandler.java:1157)
          at
  org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
  388)
          at
  org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
  216)
          at
  org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
  182)
          at
  org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
  765)
          at
  org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
          at
  com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionH 
  andlerMap.java:
  238)
          at
  org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
  152)
          at org.mortbay.jetty.Server.handle(Server.java:326)
          at
  org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
  542)
          at org.mortbay.jetty.HttpConnection
  $RequestHandler.headerComplete(HttpConnection.java:923)
          at
  com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequ 
  estParser.java:
  76)
          at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:
  404)
          at
  com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceReques 
  t(JettyServletEngineAdapter.java:
  135)
          at
  com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
  243)
          at com.google.apphosting.base.RuntimePb$EvaluationRuntime
  $6.handleBlockingRequest(RuntimePb.java:5485)
          at com.google.apphosting.base.RuntimePb$EvaluationRuntime
  $6.handleBlockingRequest(RuntimePb.java:5483)
          at
  com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingAp 
  plicationHandler.java:
  24)
          at
  com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:398)
          at com.google.net.rpc.impl.Server$2.run(Server.java:852)
          at
  com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
  56)
          at
  com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpa 
  nBuilder.java:
  536)
          at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
      

[appengine-java] Chat Time transcript for April 7, 2010

[Jason (Google)]

The high-level summary and complete transcript of the April 7th
edition of the IRC office hours is pasted below. Please join us on the
first and third Wednesday of every month in the #appengine channel on
irc.freenode.net. On the first Wednesday, we meet in the channel from
7:00-8:00 p.m. PST (evening hours), and on the third Wednesday (e.g.
TOMORROW, 4/21), we're available from 9:00-10:00 a.m. PST (morning
hours).

- Jason


--SUMMARY---
- Discussion of existing App Engine-compatible OpenID libraries and
forthcoming built-in support for OpenID and OAuth [7:03-7:09]

- Remember, back up your code or use a secure version control system
-- we cannot help you recover your code in the event of corruption or
theft, so backup early and often. Also, see
http://stackoverflow.com/questions/2479087/can-i-restore-my-source-code-that-has-been-uploaded-into.
[7:11-7:16]

- Q: Is it feasible to push every write to the task queue instead of
making the user wait for the write to complete inside a handler? A:
While this should work, there are two things to keep in mind: 1) the
number of task insertions is currently limited to 1M per day -- if you
make more than one million writes each day, this solution will fail.
2) Tasks don't necessarily run in the order they were inserted; e.g.
if a task fails and has to be re-tried, it's possible that a newer
task will be processed ahead of it. Thus, you'll want to version your
entities so you don't mistakenly overwrite new data with old data.
[7:18-7:19, 7:21, 7:58-7:59]

- Discussion on IDE/editor preference [7:21, 7:23, 7:24]

- Discussion on paging using cursors and the inherent challenges of
paging backwards when entities are consistently being inserted
[7:24-7:30]

- Q: Should I be concerned if I see a red or cold caution sign in the
Admin Console indicating that CPU usage for a particular handler is
high? A: In general, no. These symbols are present to show you which
handlers are using the most CPU and to help point out which handlers
you should optimize, but the quotas page is the definitive source on
resource usage. Keep in mind that enabling billing for your
application automatically boosts a lot of your quotas, regardless of
whether you actually exceed any of the billable quotas. [7:31-7:35]

- Discussion on SSL support, ETAs on SSL for custom domains, and a
potential SSL bug affecting non-default versions of an app.
[7:39-7:40]

- Q: Are sessions supported in Python? A: Sessions aren't supported
directly by the webapp framework, but you can build your own
implementation fairly easily using cookies and memcache/datastore.
[7:49, 7:51-7:53]

- Q: Are keys-only queries a good way to get a simple count on the
number of entities matching a query? A: Depending on your queries,
this may be the only effective method. In general, we prefer pre-
computation when possible -- if you have a limited number of known
queries, you can just increment a counter when a new entity is written
or updated. For systems where the set of possible queries is large and/
or unknown, then performing a keys-only query is a reasonable
solution. Be sure to cache the result so you don't have to continually
execute this query for every request. Also, remember the datastore
statistics API is available if you need a straight count of every
entity in your datastore or of every entity of a particular kind.
[7:50-7:52, 7:54-7:59, 8:03]


--FULL
TRANSCRIPT---
[7:00pm] apijason_google: Good evening (or morning as the case may
be)! I and a few other App Engine engineers will be here for the next
hour to answer your questions, so fire away.
[7:01pm] chilts: sweet, didn't realise it was now
[7:01pm] chilts: (not that I have a question)
[7:02pm] apijason_google: Well, just in case you have one later.
[7:03pm] chilts: apijason_google: any idea if Google are working on
patching the python-openid library to make it Google Apps compatible
(ie. does the host-meta discovery method)?
[7:04pm] chilts: it would be good so Python people on AppEngine can
start doing Marketplace apps more easily for _all_ Google Apps
Enterprise customers
[7:04pm] AreEmmKay: I saw a commit on AEOID about that
[7:04pm] • chilts goes to check it out
[7:05pm] AreEmmKay: http://github.com/Arachnid/aeoid  Add preliminary
support for Google Apps openid 
[7:05pm] chilts: I did see Nick's post about putting an /openid page
on your site, but that would be much better
[7:05pm] chilts: ah, March 13th
[7:05pm] chilts: cool, thanks AreEmmKay
[7:05pm] AreEmmKay: np
[7:06pm] apijason_google: I'm not positive on the implementation
details, but OpenID enhancements will be added in a future release. I
don't know if you caught the Built-in support for OAuth  OpenID
item in our latest product roadmap.
[7:06pm] chilts: saw that on the roadmap yeah
[7:06pm] chilts: can't wait
[7:06pm] molson: Trying to view a specific class in my datastore via
the datastore 

Re: [appengine-java] User.nickName

[Ikai L (Google)]

Here are the Javadocs regarding this:

http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/users/User.html#getNickname()

http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/users/User.html#getNickname()
The nickname will be a unique, human readable identifier for this user with
respect to this application. It will be an email address for some users, but
not all.

We don't currently integrate with Google Profiles. You'll probably want to
star this issue:

http://code.google.com/p/googleappengine/issues/detail?id=310

On Fri, Apr 16, 2010 at 12:09 AM, Philip Tucker ptuc...@gmail.com wrote:

 When I access the nickName field of the userService.getCurrentUser()
 object, I don't get the nickName from Google profiles. For example, if
 I go to http://www.google.com/profiles/me/editprofile for my account
 (ptuc...@gmail.com) my nickName is Philip, but in AppEngine I get
 ptucker.

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Developer Relations, Google App Engine
Twitter: http://twitter.com/ikai
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Google App Engine links:
Blog: http://googleappengine.blogspot.com
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[appengine-java] java.lang.RuntimeException: Version not ready.

[Robert Cooper]

I am trying to update shortyz-xword and am getting timeouts. I can't
extract any useful info from the admin log. Is there something going
on today?

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Re: [appengine-java] Deployment Descriptor Filters: typo in example

[Ikai L (Google)]

Hi,

You're correct, this sample code doesn't work. I've fixed the doc and sent
it for review. It should go live shortly afterwards. Here's what the code
should look like:

// Pastie link for nicer formatting: http://pastie.org/926936

import java.io.IOException;
import java.util.logging.Logger;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class LogFilterImpl implements Filter {

  private FilterConfig filterConfig;
  private static final Logger log =
Logger.getLogger(LogFilterImpl.class.getName());

  public void doFilter(ServletRequest request, ServletResponse response,
FilterChain filterChain)
  throws IOException, ServletException {
log.warning(Log filter processed a  +
getFilterConfig().getInitParameter(logType)
+  request);

filterChain.doFilter(request, response);
  }

  public FilterConfig getFilterConfig() {
return filterConfig;
  }

  public void init(FilterConfig filterConfig) {
this.filterConfig = filterConfig;
  }

  public void destroy() {}


}


On Thu, Apr 15, 2010 at 7:09 AM, Chau Huynh cmhu...@gmail.com wrote:

 Hello,

 It looks like a typo in
 http://code.google.com/appengine/docs/java/config/webxml.html#Filters
 Code: filterConfig.doFilter(request, response);
 Also sample LogFilterImpl does not implement all methods defined in javax.
 servlet.Filter

 Can you please take a look and update. Thanks


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-- 
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Developer Relations, Google App Engine
Twitter: http://twitter.com/ikai
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Google App Engine links:
Blog: http://googleappengine.blogspot.com
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Re: [appengine-java] Jetty servlet invoker

[Ikai L (Google)]

I can't even get this to work correctly locally - I get a
NullPointerException that seems to be related to ServletFilters.
Specifically - the development BlobStore servlet filter (stack trace is
below). What version are you using?

Can you open a feature request to support Invoker here at our issues
tracker?

http://code.google.com/p/googleappengine/issues/list

java.lang.RuntimeException: java.lang.NullPointerException
at 
org.mortbay.jetty.servlet.ServletHandler.updateMappings(ServletHandler.java:1057)
at 
org.mortbay.jetty.servlet.ServletHandler.setServletMappings(ServletHandler.java:1110)
at 
org.mortbay.jetty.servlet.ServletHandler.addServletWithMapping(ServletHandler.java:770)
at 
org.mortbay.jetty.servlet.ServletHandler.addServletWithMapping(ServletHandler.java:731)
at org.mortbay.jetty.servlet.Invoker.service(Invoker.java:175)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at 
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at 
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at 
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:51)
at 
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at 
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at 
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at 
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122)
at 
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at 
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at 
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at 
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at 
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at 
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)
at 
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at 
com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:349)
at 
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at 
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at 
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at 
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at 
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)


On Tue, Apr 13, 2010 at 9:10 PM, gurbieta gurbi...@gmail.com wrote:

 Hi everybody, y added this lines into my web.xml

servlet
servlet-nameinvoker/servlet-name

  servlet-classorg.mortbay.jetty.servlet.Invoker/servlet-class
/servlet

servlet-mapping
servlet-nameinvoker/servlet-name
url-pattern/servlet/*/url-pattern
/servlet-mapping

 And it works on my local version of app-engine (automatically with the
 eclipse plugin), but when I deploy it into Google does not work,
 anybody knows why?

 Thanks in advance,

 Gonzalo Urbieta

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-- 
Ikai Lan
Developer Relations, Google App Engine
Twitter: http://twitter.com/ikai
Delicious: http://delicious.com/ikailan


Google App Engine links:
Blog: http://googleappengine.blogspot.com
Twitter: http://twitter.com/app_engine
Reddit: http://www.reddit.com/r/appengine

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[appengine-java] Re: java.lang.RuntimeException: Version not ready.

[hector]

+1 - I'm having issues deploying as well... I'm guessing some service
is down.

On Apr 20, 3:01 pm, Robert Cooper keber...@gmail.com wrote:
 I am trying to update shortyz-xword and am getting timeouts. I can't
 extract any useful info from the admin log. Is there something going
 on today?

 --
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 To unsubscribe from this group, send email to 
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 For more options, visit this group 
 athttp://groups.google.com/group/google-appengine-java?hl=en.

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[appengine-java] gae+twig+gwt Hello World project

[marius.andreiana]

Hi all,

First, many thanks John for this library.

I'm just getting started with twig.

To get an idea of my level, it took me 0.5h to figure out that to use
twig, you need to add the jars to WEB-INF/libs and use
import com.vercer.engine.persist.annotation.*;
(I was looking for something like com.twig, didn't know what vercer
is... Docs mention only the maven setup)

Is there any full small project gae+twig project available to look at
and understand how to use twig? Ideally with a gwt front-end too.
The code snippets on twig docs don't make much sense to me as I don't
know where to add them. Is guice required too?

PS: a correction in docs:
http://code.google.com/p/twig-persist/wiki/Configuration
@Key name; should be @Key String name;

Thanks.

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[appengine-java] Google App Engine for Java app coul dn’t find javac ?

[fni]

I'm learning to use Google App Engine, I installed it in Netbeans, the
project works, but when I clicked on Deploy To Google App Engine, I
got the following error :

Beginning server interaction for ...
0% Creating staging directory
5% Scanning for jsp files.
8% Compiling jsp files.
11% Compiling java files.

Error Details:
Apr 20, 2010 3:51:23 PM org.apache.jasper.JspC processFile
INFO: Built File: \PayPal_Monitor.jsp

java.lang.IllegalStateException: cannot find javac executable based on
java.home, tried C:\Program Files (x86)\Java\jre6\bin\javac.exe and
C:\Program Files (x86)\Java\bin\javac.exe

Unable to update app: cannot find javac executable based on java.home,
tried C:\Program Files (x86)\Java\jre6\bin\javac.exe and C:\Program
Files (x86)\Java\bin\javac.exe

Please see the logs [C:\Users\NM\AppData\Local\Temp
\appcfg3946701335172983337.log] for further information.

The file javac.exe is in : C:\Program Files (x86)\Java
\jdk1.6.0_18\bin

How can I add it to java.home ? I'm using Win Vista, and I tried to
add it from System - Environment Variables, but there is no
java.home in there. So I added JAVA_HOME to it pointing to : C:
\Program Files (x86)\Java\jdk1.6.0_18\bin

But it still gives me the same error. I wonder where this java.home
is, and how to change it ?

Frank

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[appengine-java] Re: java.lang.RuntimeException: Version not ready.

[bjy]

Same issue in python.Here we go again : (

On Apr 20, 3:01 pm, Robert Cooper keber...@gmail.com wrote:
 I am trying to update shortyz-xword and am getting timeouts. I can't
 extract any useful info from the admin log. Is there something going
 on today?

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[appengine-java] Re: java.lang.RuntimeException: Version not ready.

[bjy]

Having same issue in python.. still

On Apr 20, 3:01 pm, Robert Cooper keber...@gmail.com wrote:
 I am trying to update shortyz-xword and am getting timeouts. I can't
 extract any useful info from the admin log. Is there something going
 on today?

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[appengine-java] Re: java.lang.RuntimeException: Version not ready.

[bjy]

Looks like it is back up

On Apr 20, 3:24 pm, bjy bradjyo...@gmail.com wrote:
 Having same issue in python.. still

 On Apr 20, 3:01 pm, Robert Cooper keber...@gmail.com wrote:

  I am trying to update shortyz-xword and am getting timeouts. I can't
  extract any useful info from the admin log. Is there something going
  on today?

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[appengine-java] Re: java.lang.RuntimeException: Version not ready.

[hector]

yeah, its backup in Java for me

On Apr 20, 3:38 pm, bjy bradjyo...@gmail.com wrote:
 Looks like it is back up

 On Apr 20, 3:24 pm, bjy bradjyo...@gmail.com wrote:



  Having same issue in python.. still

  On Apr 20, 3:01 pm, Robert Cooper keber...@gmail.com wrote:

   I am trying to update shortyz-xword and am getting timeouts. I can't
   extract any useful info from the admin log. Is there something going
   on today?

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[appengine-java] a work around for request aborted?

[charles eubanks]

My app is essentially a specialized reminder tool.  it has a cron job
that wakes up every 15 minutes to see if anybody needs to be nagged
(sent an email reminder).

The cron job does a query against one entity looking for anything with
a UTC time equal or before now.  The query looks like:

select from  + ActionItem.class.getName()
+  where actionTime =  + (hourOfDay);

With that result we simply queue a task to process the actual action
(which may be to send email).  But that's all there is to it: read a
result set and enqueue something for each item returned.

This request about 1/3 of the time blows up with the dreaded Request
was aborted after waiting too long to attempt to service your
request.  Right now that is somewhat OK because the request will run
again in 15 minutes and therefore eventually pick up the work that the
failed requests miss.

I *thought* that I was hitting a resource limit so my first attempt to
work around this was to wrap my read loop in a try/catch looking for
the exceptions:

}catch(com.google.apphosting.api.ApiProxy.OverQuotaException oq){
log.info(over quota! trying again);
String stampStr = +gCal.getTimeInMillis();
String urlStr =/setup?hour=+stampStr+L;
TaskOptions url = TaskOptions.Builder.url(urlStr);
queue.add(url.method(Method.GET));
}catch(com.google.apphosting.api.DeadlineExceededException de){
log.info(out of time! trying again);
String stampStr = +gCal.getTimeInMillis();
String urlStr =/setup?hour=+stampStr+L;
TaskOptions url = TaskOptions.Builder.url(urlStr);
queue.add(url.method(Method.GET));

And then stopping and re-queuing the task.  However empirically I
don't seem to ever catch these exceptions.  My request just gets
aborted with no warning (and apparently no log output)

I am afraid that this problem will grow as the app grows so I am
looking for ideas to fix it.  Two approaches seem to be worth trying:

1) Cache the query results somehow to avoid need to run it if
possible.

2) Use low level data store API to run the query so that I can
(possibly) complete a partial read of the reminder data.

(question, also I am doing something wrong here? -- It seems like a
simple query should be able to at least partially complete in the time
it takes to do one request - given that I am the only one using my dev
version of the app.)

I am hoping someone can tell me which of these ideas is more likely to
help (or give me an alternate idea)

Thanks.


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Re: [appengine-java] Google App Engine for Java app couldn’t find javac ?

[Chau Huynh]

Please try verification step in Getting Java session from the tutorial
http://code.google.com/appengine/docs/java/gettingstarted/installing.html

java -version
javac -version

If error, it's likely you need to add {JAVA_HOME}\bin to Path variable.
Typically you might need to remove bin out of your JAVA_HOME setting C:
\Program Files (x86)\Java\jdk1.6.0_18\bin.
Thanks.

On Wed, Apr 21, 2010 at 3:56 AM, fni min...@gmail.com wrote:

 I'm learning to use Google App Engine, I installed it in Netbeans, the
 project works, but when I clicked on Deploy To Google App Engine, I
 got the following error :

 Beginning server interaction for ...
 0% Creating staging directory
 5% Scanning for jsp files.
 8% Compiling jsp files.
 11% Compiling java files.

 Error Details:
 Apr 20, 2010 3:51:23 PM org.apache.jasper.JspC processFile
 INFO: Built File: \PayPal_Monitor.jsp

 java.lang.IllegalStateException: cannot find javac executable based on
 java.home, tried C:\Program Files (x86)\Java\jre6\bin\javac.exe and
 C:\Program Files (x86)\Java\bin\javac.exe

 Unable to update app: cannot find javac executable based on java.home,
 tried C:\Program Files (x86)\Java\jre6\bin\javac.exe and C:\Program
 Files (x86)\Java\bin\javac.exe

 Please see the logs [C:\Users\NM\AppData\Local\Temp
 \appcfg3946701335172983337.log] for further information.

 The file javac.exe is in : C:\Program Files (x86)\Java
 \jdk1.6.0_18\bin

 How can I add it to java.home ? I'm using Win Vista, and I tried to
 add it from System - Environment Variables, but there is no
 java.home in there. So I added JAVA_HOME to it pointing to : C:
 \Program Files (x86)\Java\jdk1.6.0_18\bin

 But it still gives me the same error. I wonder where this java.home
 is, and how to change it ?

 Frank

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[appengine-java] Re: open source pdf engine for GAE

[jeno]

Hi Patrice ,

Thanks for your help.

How can i initialize variable of ServletResponse resp  on
onFormButtonClicked of robot.

Thanks
Jeno

On Apr 20, 6:22 pm, Patou patou.de.saint.ste...@gmail.com wrote:
 Hello

 In App Engine, You can't write a file to the file system. Otherwise
 the save method can't be used in GAE.
 Use this code to send the pdf to the navigator :

 pdf.wrap();

 String fileName = Example_03.pdf;

 resp.setContentType(application/pdf);
 resp.setHeader(Content-Disposition, attachment; filename=\ +
 fileName + \);
 ServletOutputStream outs = resp.getOutputStream();
 pdf.getData().writeTo(outs);

 Or to save to the datastore :
 new Blob(pdf.getData().toByteArray());

 Bests Regards

 Patrice

 On Apr 20, 4:18 am, jeno jeno...@gmail.com wrote:



  Hi François ,

  Thanks for your help. I have used PDFjet (PDFJet.jar  version 2.72)
  PDF class missing save method
  So i cant call pdf.save(d.pdf) method.

  Cheers
  jeno

  On Apr 19, 6:48 pm, François Masurel fm2...@mably.com wrote:

   Hi Jeno,

   You can try the PDFjet Open Source Edition 
   :http://pdfjet.com/os/edition.html

   François

   On 19 avr, 01:55, jeno jeno...@gmail.com wrote:

Hi Guys,

Anyone know open source java  pdf engine for GAE.

Thanks
Jeno

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[appengine-java] Re: org.datanucleus.store.appengine.query.DatastoreQuery$2

[CodeMan]

Hi,
Your thanks for your suggestion but I don't think it applies to my
problem.
I am not copying the list.

This is the class that genarates the error.

@ManagedBean()
@SessionScoped
public class MyTemplates  implements java.io.Serializable{
Template template;
String text;
ListTemplate templates;
String owner;

public String getMyTemplates(){
this.owner=this.getUser(getMyTemplates);
PersistenceManager pm = PMF.get().getPersistenceManager();//
String query = select from  + Template.class.getName() + 
where owner=='+owner+' ;//order by name
this.templates = (ListTemplate) pm.newQuery(query).execute();
int n=templates.size();
if(n==0) this.text=No Templates;
else this.text=;
System.out.print(Got Tempaltes::+n);
return viewtemp.xhtml;
}

--setters--
--getters--
}

Template has the following defination

@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Template  implements java.io.Serializable{
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
@Persistent
String name;
@Persistent
String description;
@Persistent
String height;
@Persistent
String width;
@Persistent
String fontcolor;
@Persistent
String bgcolor;
@Persistent
String owner;

--setters--
--getters--
}

This code works fine on my local machine but when deployed it throws
exceptions. Does anyone have any idea why this happens?
Thanks!


On Apr 20, 4:25 pm, mini998 imanthasi...@gmail.com wrote:
 Found the answer,

 Have to copy all the contents in the query result to a new list

 eg,

 projectsTemp = (ListProject) query.execute();
 ListProject projects = new ArrayListProject();
 projects.addAll(projectsTemp);
 planet.setProjects(projects);

 hope this helps

 On Apr 20, 4:29 pm, mini998 imanthasi...@gmail.com wrote:

  Hi, I have the same problem

  I think its due to the result set being not serialized

  do not know how to serialize the result set before putting it to
  session

  any ideas thanks in advance

  On Apr 19, 9:52 pm,CodeManchinu...@yahoo.com wrote:

   Hi,

   I am getting the error below in a JSF app when I try to fetch a
   ListTemplate.

   Using this code:
               PersistenceManager pm =
   PMF.get().getPersistenceManager();//
               String query = select from  + Template.class.getName() + 
   where owner=='+owner+' ;
               this.templates = (ListTemplate) 
   pm.newQuery(query).execute();

   Can you help figure out what's causing it.

   Thanks.

   #

      1.
         04-19 01:42PM 52.901 /pages/newcbx.faces 500 18322ms 24015cpu_ms
   40api_cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
   1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
   3.5.30729),gzip(gfe)
         See details

         98.229.74.17 - - [19/Apr/2010:13:43:11 -0700] POST /pages/
   newcbx.faces HTTP/1.1 500 0 http://ezcomment.appspot.com/pages/
   dusers.faces Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
   1.9.0.17) Gecko/2009122116 Firefox/3.0.17 (.NET CLR
   3.5.30729),gzip(gfe) ezcomment.appspot.com

      2.
         W 04-19 01:43PM 02.874

         [ezcomment/1.341368964543160070].stderr: SystemId Unknown;
   Line #57; Column #31; Failed calling setMethod method

      3.
         W 04-19 01:43PM 03.367

         [ezcomment/1.341368964543160070].stderr: SystemId Unknown;
   Line #57; Column #31; Failed calling setMethod method

      4.
         W 04-19 01:43PM 11.177

         /pages/newcbx.faces
         java.lang.RuntimeException: java.io.NotSerializableException:
   org.datanucleus.store.appengine.query.DatastoreQuery$2
           at
   com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager
.java:
   361)
           at
   com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(S
essionManager.java:
   341)
           at com.google.apphosting.runtime.jetty.SessionManager
   $AppEngineSession.save(SessionManager.java:162)
           at
   com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionF
ilter.java:
   41)
           at org.mortbay.jetty.servlet.ServletHandler
   $CachedChain.doFilter(ServletHandler.java:1157)
           at
   com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(Trans
actionCleanupFilter.java:
   43)
           at org.mortbay.jetty.servlet.ServletHandler
   $CachedChain.doFilter(ServletHandler.java:1157)
           at
   org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
   388)
           at
   org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
   216)
           at
   org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
   182)
           at
   

[appengine-java] Re: open source pdf engine for GAE

[jeno]

robot only allow json data format.

second method ok,  store it on datastore and access from there

cheers
jeno

On Apr 21, 1:02 pm, jeno jeno...@gmail.com wrote:
 Hi Patrice ,

 Thanks for your help.

 How can i initialize variable of ServletResponse resp  on
 onFormButtonClicked of robot.

 Thanks
 Jeno

 On Apr 20, 6:22 pm, Patou patou.de.saint.ste...@gmail.com wrote:



  Hello

  In App Engine, You can't write a file to the file system. Otherwise
  the save method can't be used in GAE.
  Use this code to send the pdf to the navigator :

  pdf.wrap();

  String fileName = Example_03.pdf;

  resp.setContentType(application/pdf);
  resp.setHeader(Content-Disposition, attachment; filename=\ +
  fileName + \);
  ServletOutputStream outs = resp.getOutputStream();
  pdf.getData().writeTo(outs);

  Or to save to the datastore :
  new Blob(pdf.getData().toByteArray());

  Bests Regards

  Patrice

  On Apr 20, 4:18 am, jeno jeno...@gmail.com wrote:

   Hi François ,

   Thanks for your help. I have used PDFjet (PDFJet.jar  version 2.72)
   PDF class missing save method
   So i cant call pdf.save(d.pdf) method.

   Cheers
   jeno

   On Apr 19, 6:48 pm, François Masurel fm2...@mably.com wrote:

Hi Jeno,

You can try the PDFjet Open Source Edition 
:http://pdfjet.com/os/edition.html

François

On 19 avr, 01:55, jeno jeno...@gmail.com wrote:

 Hi Guys,

 Anyone know open source java  pdf engine for GAE.

 Thanks
 Jeno

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[appengine-java] Re: including data file in JAR

[Philip Tucker]

That worked, thanks.

On Apr 18, 11:55 pm, Vaclav Bartacek vaclav.barta...@spolecne.cz
wrote:
 Better way is to use  getClass().getResourceAsStream for accessing
 files packed in jars
 or for acccessing files located directly in the war you can use the
 following (in a servlet):
     ServletContext ctx = getServletContext();
     InputStream is = ctx.getResourceAsStream( resourceName );

 Do not forget to declare the data file as the resource file in
 appengine-web.xml
 (if it is located outside of the WEB-INF directory):
 resource-files
   include path=/resources/data-file.csv /
 /resource-files

 Vaclav

 On Apr 18, 4:00 am, Philip Tucker ptuc...@gmail.com wrote:

  I have a data file I need to access on the server. If I include it in
  my source path on the client I can load it via
  ClassLoader.getSystemResourceAsStream. But this breaks on the server
  (I'm not sure if the eclipse plugin is even deploying it). What's the
  best way to do this? I don't want to incur a DB hit if I can avoid it,
  and it's too much data to embed in a class (~4MB).

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Re: [appengine-java] What's wrong with my JPA Entity

[Sudhir Ramanandi]

Yes, Dao Saves is properly. I just found that the Key will be generated on
EntityManager.flush()

I modified the code, and now it works fine.

public void testPkGeneration() {

Profile p1 = new Profile();
p1.setAge(20);
p1.setDob(new Date());

EntityManager em = EMF.get().createEntityManager();
EntityTransaction tx = em.getTransaction();
dao.setEntityManager(em);
tx.begin();
dao.save(p1);
em.flush();
tx.commit();

ListProfile profiles = dao.getAll();
assertNotNull(profiles.get(0));
assertNotNull(p1.getId());

}



On Wed, Apr 21, 2010 at 1:25 AM, Ikai L (Google) ika...@google.com wrote:

 Are you sure that the entity is being saved?

 Can you post your ProfileDAO?

 On Mon, Apr 19, 2010 at 9:52 AM, Sudhir Ramanandi sramana...@gmail.comwrote:

 I have just started with GAE+JPA. However I find it difficult to grasp the
 primary key things.
 I have created a very simple entity and a test to verify that the primary
 key is generated automatically.

 Entity

 import java.util.Date;

 import javax.persistence.Basic;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.Temporal;
 import javax.persistence.TemporalType;

 import com.google.appengine.api.datastore.Key;
 import com.szczytowski.genericdao.api.IEntity;

 @Entity
 public class Profile implements IEntityKey {

 @Id
 @GeneratedValue(strategy=GenerationType.IDENTITY)
 private Key _id;

 @Basic
 private int _age;

 @Basic
 @Temporal(TemporalType.DATE)
 private Date _dob;

 public Profile() {
 }

 public Key getId() {
 return _id;
 }

 public void setId(Key id) {
 _id = id;
 }

 public int getAge() {
 return _age;
 }

 public void setAge(int age) {
 _age = age;
 }

 public Date getDob() {
 return _dob;
 }

 public void setDob(Date dob) {
 _dob = dob;
 }
 }


 Test Class

 import java.util.Date;

 import junit.framework.TestCase;

 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.ramanandi.matri.infrastructure.jpa.EMF;

 import
 com.google.appengine.tools.development.testing.LocalDatastoreServiceTestConfig;
 import
 com.google.appengine.tools.development.testing.LocalServiceTestHelper;

 public class ProfileDaoTest extends TestCase {

 private final LocalServiceTestHelper helper = new
 LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());
 private ProfileDao dao = new ProfileDao();


 @Before
 public void setUp() {
 helper.setUp();
 }

 @After
 public void tearDown() {
 helper.tearDown();
 }
 private void doTest() {
 dao.setEntityManager(EMF.get().createEntityManager());
 Profile p = new Profile();
 p.setAge(20);
 p.setDob(new Date());
 dao.save(p);
 assertNotNull(p.getId());


 }

 @Test
 public void testInsert1() {
 doTest();
 }

 }

 ButassertNotNull(p.getId()); fails. Why the primary key is not
 generated automatically? What's wrong.

 Thanks
 SN

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Re: [google-appengine] Project name availability

[Juan González]

i'm not from Google, but from my experience that's not the case, they are
independent (for example, while there's a project on code.google.com for
datanucleus-appengine there is no http://datanucleus-appengine.appspot.com/)

regards

2010/4/19 Florent Georges fgeor...@gmail.com

  Hi,

  I tried to create a new project on Google App Engine, but the name I
 chose was not available anymore.  That surprised me a bit as this is a
 rather uncommon name.  Then I thought that maybe the name of projects
 on Google Code were reserved automatically on the App Engine (I have a
 project on Google Code with the same name).

  I dug into the help and the archives, but I did not find anything on
 that subject.

  Is there any chance the name I am after is reserved because of the
 namesake project on Google Code?

  Regards,

 --
 Florent Georges
 http://fgeorges.org/

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http://blog.opsiland.info/

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Re: [google-appengine] Project name availability

[Iap]

  I tried to create a new project on Google App Engine, but the name I
 chose was not available anymore.


I  have the same question. It seems that some wordings are reserved and the
forbidden table seems to be a big table. It is quite easy to get an
unavailable name.

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[google-appengine] Re: Project name availability

[Greg]

I don't have any official documentation to point to, but I think I
read somewhere that every gmail account name stops that name being
used for an app name. So if someone chose twid...@gmail.com as an
email address, you can't use twiddle as an app name.

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Re: [google-appengine] Python Documentation Missing?

[Nick Johnson (Google)]

On Tue, Apr 20, 2010 at 3:17 AM, Monteith, Tracy tr...@s3-systems.comwrote:

 I was aware of that page but was looking for some more detailed API
 documentation for example:   PyDocs for google.appengine.ext.db.


The code.google.com pages completely document all the public APIs. If you
need more detail, you can consult the source and the embedded docstrings,
but code.google.com forms the official documentation. All the public
functionality is documented in the reference section, including expected
arguments and return values.



 My form data is not saving properly.  What document would tell me about the
 API methods available and the expected input/output values to help me debug
 this?


Why don't you describe the problem you're encountering to us, and we can
suggest what might be wrong?

-Nick Johnson



 J

 On Mon, Apr 19, 2010 at 9:24 AM, Nick Johnson (Google) 
 nick.john...@google.com wrote:

 Hi,

 The Python API is documented here:
 http://code.google.com/appengine/docs/python/

 -Nick Johnson


 On Mon, Apr 19, 2010 at 4:04 PM, codingJoe coding...@gmail.com wrote:

 Where can I find PyDocs for google.appengine.ext.db?

 My round-trip edits on entities with the reference property aren't
 working properly.  I can't seem to figure out why, find any lower
 level documentation that might help me figure it out.

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[google-appengine] Re: Return list of dicts instead of object

[hawkett]

Perhaps I misunderstood what you are trying to do. Have you seen the
dynamic_properties() method of the Model class?

http://code.google.com/appengine/docs/python/datastore/modelclass.html
(at the bottom)

It's pretty hard to find - I flagged a doc defect ages ago -
http://groups.google.com/group/google-appengine-python/browse_thread/thread/eac9af0e9d6bb152/5138a6d61a59b749

Something easier (but less performant) than using the underlying API
is just to iterate over the object properties -

for object in objects_from_db:
  for property_name in object.dynamic_properties():
print %s:%s % (property_name, getattr(object, property_name))

Treat the above as pseudocode, as I haven't actually run it, but you
get the idea.

On Apr 19, 11:59 am, Lynge como...@gmail.com wrote:
 Many thanks, this should do nicely. I have already written a hack-job
 implementation to get around it, but will soon change it to something
 that makes use of this.

 On 16 Apr., 10:23, hawkett hawk...@gmail.com wrote:





  If you use the (undocumented) underlying datastore API you will get
  datastore objects as lists of dictionary-like objects. It is the
  higher level datastore API that converts these objects into Models.
  Consequently, using this API is slightly faster as well. For example

  from google.appengine.api import datastore

  q = datastore.Query(SomeKind, {name =: someName}, None, False,
  True, None) # Kind, query, ?, keys_only, compile, cursor
  q_results = q.Run()

  for result in q_results:
    print result.key()
    print result['name']

  The only mechanism I have found to understand this API is to review
  the app engine code.  The documentation in the code is pretty
  reasonable, but generally no examples.

  On Apr 15, 1:17 pm, Lynge como...@gmail.com wrote:

   Hi, I am using an Expando class and I want to sort it.
   It needs to be sorted according to a dynamically assigned property so
   it has o be done at runtime.

   I am using python and it could be done easily with something like:

           dates = sorted(datelist, key=itemgetter('comp_date'))

   But since the objects returned from the datastore are not iterable
   this is impossible.

   So I thought that I would just create my own list of dicts and then I
   can iterate and sort it, but alas that is not possible either.

   I can iterate over the primary just fine

           for date in datesfromdb:
               datelist.append(dict(date))

   but no matter how I try to get the data out of the date object I have
   no luck.
   I dont want to name all the properties of the model since that would
   make it a big pain to update anything, but how then do I do it?

   Any help would be appreciated.

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[google-appengine] Re: Python Documentation Missing?

[Stephen]

On Apr 20, 3:17 am, Monteith, Tracy tr...@s3-systems.com wrote:

 I was aware of that page but was looking for some more detailed API
 documentation for example:   PyDocs for google.appengine.ext.db.


  http://code.google.com/appengine/docs/python/datastore/functions.html


  The google.appengine.ext.db package provides the following
functions:

  create_rpc(deadline=None, callback=None,
read_policy=STRONG_CONSISTENCY)

  ...

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Re: [google-appengine] datastore with ~500 million rows?

[djidjadji]

1TB = 1024 GB = 1024 x 1024 MB = 1024^4 byte = 1.1x10^12 byte
if you have 500x10^6 entries of 7KB you need
500x10^6 x 7x1024 = 3.584x10^12 bytes = 3.26TB

But this is only the RAW data need, if you take the indices into
account it would be even larger. db.TextProperty and db.BlobProperty
don't use index storage. All the other properties can be given the
indexed=False argument.

But do you need to create all the tiles at the start of the game?
It is very unlikely that all the tiles will contain something interesting.
Why not only store the tiles that are not-default and if you want a
not stored tile
return an object with the right key_name that if modified and put() in
the datastore would represent this new tile.
And is the json content compressible?
Then you can use a custom property that compresses the content and
stores it in a db.BlobProperty. And uncompress at retrieval.

2010/4/20 Shinichi Nakanishi stouton...@gmail.com:
 I think 500M * 7KB = 3.5TB.  Sorry if I'm wrong.


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[google-appengine] Testing the appengine cache

[Grant]

Hi

I am impressed with how easy
com.google.appengine.tools.development.testing.LocalServiceTestHelper
has made writing tests for appengine code (working in Java).

The one thing I find that is missing is testing interactions with the
cache.

How are people out there testing interactions with the cache?

Thanks

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Re: [google-appengine] Python script Google Authentication for a GAE Application

[Nick Johnson (Google)]

Hi Michael,

The appengine_rpc module from the SDK handles all this:
http://code.google.com/p/googleappengine/source/browse/trunk/python/google/appengine/tools/appengine_rpc.py

http://code.google.com/p/googleappengine/source/browse/trunk/python/google/appengine/tools/appengine_rpc.pyYou
can use it directly in your app, and let it take care of authentication to
an App Engine application.

-Nick Johnson

On Mon, Apr 19, 2010 at 9:34 PM, Michael Byrd nerdymcnerdy...@gmail.comwrote:

 Hi Everyone,

 I'm having a hard time figuring this out and I'm hoping someone can
 point me in the right direction for what to read.

 I've written an appengine app, a servlett, that will accept data from
 a get request, check if the user is signed in to a google account and
 then store the data from the request in the datastore (with a User as
 part of the model).  All pretty standard.

 I'd like for a python script to be able to automate the data input
 (think returning the results of s...@home) but it's important that the
 python client be able to authenticate itself via a google account.

 I'm at a bit of a loss for where to even start... these seem like good
 places, but I don't even know enough to be sure which, if any, will
 work:

 http://code.google.com/apis/accounts/docs/OAuthForInstalledApps.html
 -- seems like the best shot but they say as a log in for 'one or more
 google service' which I'm not sure my app counts as..

 http://code.google.com/appengine/docs/python/tools/uploadingdata.html
 -- I think this is not so good as I would have to give every user too
 lenient permissions for my app

 I've looked through the gdata source code as well trying to
 authenticate with a generic service, but I'm not sure if gdata
 authentication is universal enough to work with an arbitrary appengine
 app.

 Ideally if someone can get me started or point me at the correct place
 that would be great.

 I'd rather not do this over email or xmpp, but I'm considering those
 options.

 Thank you anyone for your help!,
 Michael

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Re: [google-appengine] Effectively Parallelizing Fetches (with pictures, yay!)

[Nick Johnson (Google)]

Hi Patrick,

Good questions!

On Tue, Apr 20, 2010 at 12:57 AM, Patrick Twohig
patr...@namazustudios.comwrote:

 Hi All,

 As I understand it, the process of performing a single fetch (call to
 get())  from the dastastore using a key basically involves finding the host
 housing the entity, opening a socket, fetching the data, and then cleaning
 up the connection.  So to fetch something like 30 entities from the
 datastore, you're repeating the process 30 times over in serial, each time
 incurring whatever overhead is involved.  I also read that if you perform
 bulk fetches, (ie passing multiple keys at once) you can eliminate a great
 deal of that overhead.  In one of the videos I watched from Google I/0 2009,
 the presenter (whose name I forget - d'oh) said that performing a bulk fetch
 actually performs the fetches in parallel from the data store and you shoudl
 see requests noticeably faster.

 Currently I have a few situations where the app performs many fetches from
 the data store in serially, rather than in bulk, and I believe it is the
 result of these requests being extremely slow and CPU intensive.  Where
 possible, I put into place as much bulk fetches as I can but I'm a little
 stuck in a few places.

 I'm basing the fetch latency on today's numbers --
 http://code.google.com/status/appengine/detail/datastore/2010/04/19.
 Anomalies aside,  It looks like the get latency somewhere between 80ms and
 160ms, let's spit difference and just say that it's 120 milliseconds.
 Additionally, the query latency is somewhere between 250ms and 500ms.
 Splitting the difference, that's 375ms.  I'm just going to use those numbers
 as a ballpark estimate for fetching multiple entities from the data store,
 feel free to correct me if any of my reasoning is flawed or incorrect.


The figures shown by the status site seem to be on the high side at the
moment - they represent worst cases. In my own apps, gets are observed to be
more on the order of 10-20ms, while queries vary widely depending on
returned data, but average about 100-300ms.


 Example 1: http://imagepaste.nullnetwork.net/viewimage.php?id=830

 Given the above example, I'm assuming that if I performed an ancestor query
 with Foo(A) as the ancestor it would effectively bulk-fetch the entire
 entity group.  I could then use the result of that query to get the data I
 need.  That would make the fetch from the datastore one query, 375
 milliseconds versus (7entities * 160ms) or 1120ms.  So long as you need  3
 or more entities (3 * 160) it would stand to reason that you're just better
 off just fetching the whole thing.  In some simple tests I did, that seemed
 to be the case, the query approach was faster, and that's great if you know
 everything is in the same entity group.

 Example 2:  http://imagepaste.nullnetwork.net/viewimage.php?id=831

 Given the above example, none of the entities are in the same entity group,
 but I would want to try to perform bulk fetches wherever possible.  I would
 first fetch Foo(A).  I would then see that it has two key properties
 pointing to Bar(B) and Bar(C), perform a fetch of those two entities at
 once.  Finally, I would see that Bar(B) and Bar(C) each reference two
 more entities -- Baz(D), Baz(E), Baz(F), and Baz(G) for a total of
 four.  In the worst case, I would fetch each entity individually taking,
 once again, 1120ms.  In the best case and I perform 3 fetches, (fetch A
 first, then fetch B and C, then lastly fetch D, E, F, and G), it would be
 more in the neighborhood of 480 milliseconds.  It's still an improvement
 over fetching each entity individually, but not much.


Very similar to this is the 'referenceproperty prefetching' pattern - see
http://blog.notdot.net/2010/01/ReferenceProperty-prefetching-in-App-Engine
http://blog.notdot.net/2010/01/ReferenceProperty-prefetching-in-App-Engine



 So I was thinking of ways to improve this, the second example in
 particular, because I have a few places in my app where that exact thing is
 happening.  Right now it's actually implemented with individual fetches, but
 it backed by memcache in many circumstances so that definitely helps.

 So given that, here's my questions...

- When serializing the objects, would it be worthwhile adding some sort
of metadata in the entity that would tell me what other entities it
references (either directly or indirectly) so that I could fetch the whole
thing with one or two API calls?  I was thinking that an entity could have
child entities with all the keys it references directly or indirectly.  
 This
would be a huge pain to implement, and I'm not sure it would make a
noticeable performance boost.


Certainly, if you experience serial gets as a significant problem that isn't
solved with simple prefetching, this could be worth doing. I would avoid
using child entities, however, and simply have a list of keys instead.


- Is there something under the covers of the API that actually makes
more 

[google-appengine] The API call mail.Send() required more quota than is available.

[suri]

Hi,
I am using free google app engine service. I am trying to use queue to
send mail as background process. But queue is able to send mail to
only 11 email-ids and then it raise exception as like given below
OverQuotaError: The API call mail.Send() required more quota than is
available.

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[google-appengine] Re: System Performance

[Ray Malone]

Thanks, I found my issues.  App Engine Utilities had grown the session
database store to over 5000 records.  It appears the code is not
optimized for lots of sessions.  I deleted all of the records and my
app is running fast again.  Thanks

On Apr 19, 10:57 pm, Ray Malone rayish...@gmail.com wrote:
 I have code that is running poorly all of a sudden today.  Normally it
 runs well, i've listed the normal and the current stats below.  But 2
 our of 3 today are running like this 200 22765ms 22234cpu_ms
 18617api_cpu_ms    With no other activity on the app I can refresh
 the page and 2 out of 3 run pooryly and the 1 out of 3 runs within
 normal ranges.   I know it's not my app.   I'm about to see some spike
 in my app's usage and random Deadline Exceeded errors and other random
 errors don't look good on my part.

 I'm also getting deadline exceeded errors and random odd errors like
 The API call user.CreateLoginURL() was explicitly cancelled.

 Normal 200 16957ms 2750cpu_ms 1291api_cpu_ms
 Currently: 200 22765ms 22234cpu_ms 18617api_cpu_ms 

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Re: [google-appengine] Re: Google IO Tickets

[Fredrik Bonander]

Hi,

I missed to purchase in time. I'm looking for 2 tickets. Is there anyone else 
that has 1 or 2 tickets left?

Is transferring/selling of tickets allowed by google?

..fredrik  



On 20 apr 2010, at 04.18, Kimchy wrote:

 I unfortunately will not be able to attend the Google IO event due to
 unforeseen circumstances and have to sadly put my Google IO ticket up
 for sale on eBay if you are interested.
 
 http://bit.ly/bS14xR
 
 Regards,
 Kim
 
 On Mar 30, 5:17 pm, Koen Bok k...@madebysofa.com wrote:
 Sorry to ask for this here, but we decided we wanted to go to Google
 IO last week and are looking for two tickets. Anyone knows a way to
 still get them?
 
 We have a pretty big AppEngine project (enstore.com) and we would hate
 to miss out on this :-/
 
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+46 70 943 5441

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Re: [google-appengine] Re: Python Documentation Missing?

[Monteith, Tracy]

Great... Thanks guys.

Also in the process of explaining the the datastore problem, I figured it
out.  I wasn't correclty mapping my form to the instance and creating
new/rogue entries with every edit.  Assign new references to those rogue
elements and chaos ensues.

Joe

On Tue, Apr 20, 2010 at 3:59 AM, Stephen sdea...@gmail.com wrote:



 On Apr 20, 3:17 am, Monteith, Tracy tr...@s3-systems.com wrote:
 
  I was aware of that page but was looking for some more detailed API
  documentation for example:   PyDocs for google.appengine.ext.db.


  http://code.google.com/appengine/docs/python/datastore/functions.html


  The google.appengine.ext.db package provides the following
 functions:

  create_rpc(deadline=None, callback=None,
 read_policy=STRONG_CONSISTENCY)

  ...

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[google-appengine] Re: The API call mail.Send() required more quota than is available.

[Wooble]

On Apr 20, 10:01 am, suri suresh1d...@gmail.com wrote:
 Hi,
 I am using free google app engine service. I am trying to use queue to
 send mail as background process. But queue is able to send mail to
 only 11 email-ids and then it raise exception as like given below
 OverQuotaError: The API call mail.Send() required more quota than is
 available.

You'll probably need to make your queue run more slowly if you want to
stay within the free quota.  You're limited to 8 recipients per
minute; enabling billing will increase that to 5,100 per minute.

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[google-appengine] will GAE support private cloud?

[disorderdev]

just like Amazon, custom can control his own resource, especially
database. in fact the most important thing is database in GAE, say I
have an app deployed on GAE, then all customers' information will be
saved in 'my' database, and I have full control on customers data, a
lot of customers will complain that, so I'm wondering wether GAE will
support private cloud, for example, for each customer domain, my app
will save data to a database that customer has full control, but I
have no control, is it possible?

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[google-appengine] Re: will GAE support private cloud?

[Wooble]

On Apr 20, 11:37 am, disorderdev disorder...@gmail.com wrote:
 just like Amazon, custom can control his own resource, especially
 database. in fact the most important thing is database in GAE, say I
 have an app deployed on GAE, then all customers' information will be
 saved in 'my' database, and I have full control on customers data, a
 lot of customers will complain that, so I'm wondering wether GAE will
 support private cloud, for example, for each customer domain, my app
 will save data to a database that customer has full control, but I
 have no control, is it possible?

You can sell your code to the customer and have them deploy it to an
application instance you're not an admin of.  Of course, this still
requires your customer to either review all of the code or trust you
not to build backdoors into it, so your hypothetical paranoid customer
might still be unhappy.

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[google-appengine] Re: Comcast not accepting outgoing emails

[emur...@conceptuamath.com]

I have resolved my problem with comcast.net and other hosts.  It was
NOT the underscore issue.  It was (you guessed it) my SPF record.  The
_correct_ SPF entry for AppEngine apps that use a custom domain and
send mail is;

v=spf1 include:aspmx.googlemail.com ~all

There are a number of discussions in this group that point to a Google
Apps Admin Help page that shows SPF entry that looks like this:
v=spf1 include:_spf.google.com ~all

That is NOT a correct entry.  When I removed that entry and added the
one above, the issue resolved itself.  If found the correct entry by
examining tweetdeck.com's DNS records.  The are heavy users on
AppEngine's mail service, so I figured that they would have it right,
and they did.  Thank you tweetdeck.

The underscore issue is still a real issue, but is was not my issue.



On Apr 19, 11:05 am, emur...@conceptuamath.com
emur...@conceptuamath.com wrote:
 I've added a separate issue for the fact that the reply-address has an
 illegal character that causes some email host to reject the email.  it
 issue number 3114.  Please Star this issue and add a comment so it
 get's attention.

 Ed

 On Apr 19, 9:12 am, Jody Belka j...@jj79.org wrote:





  There is indeed a serious. Google is including an _ as part of a dns
  label in (I assume) the return path. An _ is not valid as part of a
  dns label. The only valid things are letters, numbers, and a dash (-).
  This is something that Google should urgently fix, as any servers that
  check the return path for validity will reject mail.

  On 19 April 2010 15:38, Mabuse stefan.urban...@web.de wrote:

   Hello,
   I've the same issue. The german mail provider web.de rejects all mails
   from the app engine.
   It seems there is a syntax error in the mail header. See:
  http://code.google.com/p/googleappengine/issues/detail?id=1800#c15
   It's an blocker for serious apps with GAE.

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[google-appengine] Re: Datastore Viewer + lists?

[gemma]

Any responses?  Still puzzled by this!

Thanks
Gemma

On Apr 18, 8:07 pm, gemma gemmasilv...@googlemail.com wrote:
 Hello chaps

 I have a persistent class which has aListString which is marked
 @Persistent.  I get no errors when persisting/updating the object in
 thedatastore, but the localdatastoreviewer shows nothing in the
 column which corresponds to theListString field.  Is this normal,
 or is something (silently) going wrong?

 Thanks!
 gemma

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[google-appengine] Receiving email problem

[markm208]

I am writing an app that is supposed to receive emails in this form:

addcontact.some...@my-app.appspotmail.com (some_id will be an
alphanumeric id that I generate)

I have this in my web.xml thinking it would catch emails that start
with addcontact

  servlet
servlet-nameaddNewContactServlet/servlet-name
servlet-classcom.mycompany.server.AddNewContactServlet/servlet-
class
  /servlet

  servlet-mapping
servlet-nameaddNewContactServlet/servlet-name
url-pattern/_ah/mail/addcontact*/url-pattern
  /servlet-mapping

However, both on my dev machine and on google's servers email is not
received. On the dev machine I get this message (I get a similar error
in the deployed log)

Message send failure
HTTP ERROR 404

Problem accessing /_ah/mail/
addcontact.z1vnq3p2bvtfsuzbxg13sfon...@myapp.appspotmail.com. Reason:

NOT_FOUND

Am I not using the wildcard correctly? Can this be done somehow?

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Re: [google-appengine] Macro question about getting video conference functionality in a custom Web App

[Ikai L (Google)]

What are you thinking of using the App Engine piece for? You can definitely
use it for accounts and chat via XMPP, but you won't be able to use App
Engine to stream video. You'll have to go with a peer to peer solution, in
which case it doesn't matter that App Engine can't run this library, since
you won't have App Engine doing anything with the video streams. App
Engine's role will be to match users.

On Sun, Apr 18, 2010 at 12:50 PM, Keller keller.rina...@gmail.com wrote:

 Hi all,

 I'm working with a few friends to design a desktop client that will
 have Skype-like functionality (think Chat roulette). We are planning
 on leveraging the App Engine to build it since we are so much more
 familiar with web programming anyway, then we're going to package it
 as a desktop client using Adobe Air.  In general, I am trying to get a
 sense for the easiest and fastest ways to build XMPP chat and video
 functionality into an App Engine app.

 I would really appreciate any ideas you guys might be able to throw
 our way. I've looked at libjingle (Google's videoconfereincing code),
 but am worried about how hard it will be to plug it into the App
 engine considering the fact that libjingle is C++. Is there some other
 kind of plug-in or add-on that would give us the ability to set up
 video conferences in a web app?

 Thanks very much for your help!
 Keller

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Re: [google-appengine] Problem with Google App Email and Google App Engine

[Ikai L (Google)]

Is your new address an administrator on your App Engine app? What's your
application ID and email you are using?

On Mon, Apr 19, 2010 at 7:23 AM, d3f3nd3r d3f3n...@d3f3nd3r.com wrote:

 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 Hallo,

 I'm using Google Apps for my domain and added an email address to Google
 Apps. I changed the email address of my Google Account (which is
 connected with Google App Engine) to my new Google Apps powered email.

 Every Google Service works fine with the new email, but when I try to
 update an app of my Google Account, App Engine says I don't have the
 permissions to modify the app:


 Application: gaeapp123; version: 1.
 Server: appengine.google.com.
 Scanning files on local disk.
 Scanned 500 files.
 Scanned 1000 files.
 Initiating update.
 Password for d3f3n...@d3f3nd3r.com:
 Error 403: --- begin server output ---
 You do not have permission to modify this app (app_id=u'gaeapp123').
 - --- end server output ---



 Any ideas?

 Thanks
 -BEGIN PGP SIGNATURE-
 Version: GnuPG v1.4.10 (GNU/Linux)
 Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

 iQIcBAEBAgAGBQJLzGdVAAoJECGFYnroAHFZVPcP/A1f5TUjadIZ6/ls7YNuxLHk
 YuRs7+eaf60WkZNADSMdMNMPDTr51ML4GukegRgjnR5XMVoaxgoErBwgTmoRTNtF
 gJiwIAUmHxtw7gkWSFoHIrjroeOa3FQweoFLCqgCP/hJS5P8O+KN2J8mq3N0sAz0
 W3KVvRtId2khguZWKwCS0fc4p+ollY1LnHFd9ulyLMO02r8MhgqA9nQ2C8mtoVp7
 0eOzQFD4ZXLZ/EBjDzJhTWcTqi1d65xNPcsfyXw98s6Le6PtchsRYmCfiAGWB5FE
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 NsekYerx0KtpXS9ZpnFbLwUHBV8pASBam9b7lTg7Ula5Pu4XY00Dn+5ow/LWwVUm
 jsN8QY1HfiT+Y2zPC3FSJcyqN41yuUuBdcOC3tEKSwek7Z5KSij/ed9RoL1suaIW
 f8pwV/l4avhFF0eNDGFOjdCqSg4IKFGCAIBb+g+2aE0bXFs097HeE54RLBEdr6df
 1y7EOWNUHo6Totu8DW98/04HslDeNB0msCu3zm3DSNdk6xqRhz946rn2qFV0n1mV
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 76m66AwO0Ndb0eCpuZt1
 =/9z8
 -END PGP SIGNATURE-

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Re: [google-appengine] I can't update my applications

[Ikai L (Google)]

What's your app ID and old/new emails?

On Sun, Apr 18, 2010 at 4:05 PM, y...@8-89.com y...@8-89.com wrote:

 I changed my email.
 now  I can't update my applications and create application.

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Re: [google-appengine] is it possible to use stored records with JDO from another own applications.

[Ikai L (Google)]

You will not be able to access another application's datastore. You'll have
to build a REST or XMPP API for it. Is there a reason you have two
applications instead of just one?

On Mon, Apr 19, 2010 at 7:09 PM, mimogon tatsuya.miya...@gmail.com wrote:

 Hello All.

 I would like to know  How to handle  BIGTABLE records with JDO from
 another own application.
 Both application are own my account.

 i could not find the way in official GAE documentation.
 if you have a time to help me, please tell me solutions or URL.

 I'm sorry about my poor English skill.
 Must be need your imagination what I want to say.
 Am I making a sense?
 I hope you understand what i wanna say...

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Re: [google-appengine] Stuck indexes.

[Ikai L (Google)]

Your indexes are likely stuck because you have hit/exceeded the 100 index
limit. You can either increase this number to 200 by enabling billing, or
delete unused indexes.

I've gone ahead and moved your indexes into error status. Go ahead and run
vacuum_indexes on them.

On Mon, Apr 19, 2010 at 11:18 AM, SiDen siden...@gmail.com wrote:

 Hi all,
 I have a problem, there are few indexes in my GAE application in
 frozen state (building).
 They have beed building few days already.
 Can you drop them or help somehow with it?
 Application name: sidentdv
 Thank you.

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Re: [google-appengine] java.io.IOException: Error posting to URL: http://appengine.google.com/api/appversion/create?app_id=9905107version=1

[Ikai L (Google)]

This application doesn't exist. Do you see it in your admin console? Perhaps
there is a typo.

I'm looking at application with id: 9905107

On Tue, Apr 20, 2010 at 4:59 AM, Roshni Basu roshni...@gmail.com wrote:

 I had an app engine id which i had got long time back . Now i tried
 using the same id for deploying a new application to appengine. This
 did not work. I'm getting the following exception:

 java.io.IOException: Error posting to URL:
 http://appengine.google.com/api/appversion/create?app_id=xxversion=1;
 404 Not Found
 This application does not exist (app_id=u'xx').

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[google-appengine] Re: Project name availability

[Florent Georges]

On Apr 20, 7:44 am, Juan González wrote:

 i'm not from Google, but from my experience that's not the
 case, they are independent (for example, while there's a
 project on code.google.com for datanucleus-appengine there is
 nohttp://datanucleus-appengine.appspot.com/)

  Well, if I go to https://appengine.google.com/start/createapp
and check its availability, I get Sorry, 'datanucleus-appengine'
is not available.  Which is quite a good clue ;-)

  That seems sensible, but then, how could we use this name if we
are the project owner on Google Code?

  Thanks all for your response.  Regards,

--
Florent Georges
http://fgeorges.org

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[google-appengine] Chat Time transcript for April 7, 2010

[Jason (Google)]

The high-level summary and complete transcript of the April 7th
edition of the IRC office hours is pasted below. Please join us on the
first and third Wednesday of every month in the #appengine channel on
irc.freenode.net. On the first Wednesday, we meet in the channel from
7:00-8:00 p.m. PST (evening hours), and on the third Wednesday (e.g.
TOMORROW, 4/21), we're available from 9:00-10:00 a.m. PST (morning
hours).

- Jason


--SUMMARY---
- Discussion of existing App Engine-compatible OpenID libraries and
forthcoming built-in support for OpenID and OAuth [7:03-7:09]

- Remember, back up your code or use a secure version control system
-- we cannot help you recover your code in the event of corruption or
theft, so backup early and often. Also, see
http://stackoverflow.com/questions/2479087/can-i-restore-my-source-code-that-has-been-uploaded-into.
[7:11-7:16]

- Q: Is it feasible to push every write to the task queue instead of
making the user wait for the write to complete inside a handler? A:
While this should work, there are two things to keep in mind: 1) the
number of task insertions is currently limited to 1M per day -- if you
make more than one million writes each day, this solution will fail.
2) Tasks don't necessarily run in the order they were inserted; e.g.
if a task fails and has to be re-tried, it's possible that a newer
task will be processed ahead of it. Thus, you'll want to version your
entities so you don't mistakenly overwrite new data with old data.
[7:18-7:19, 7:21, 7:58-7:59]

- Discussion on IDE/editor preference [7:21, 7:23, 7:24]

- Discussion on paging using cursors and the inherent challenges of
paging backwards when entities are consistently being inserted
[7:24-7:30]

- Q: Should I be concerned if I see a red or cold caution sign in the
Admin Console indicating that CPU usage for a particular handler is
high? A: In general, no. These symbols are present to show you which
handlers are using the most CPU and to help point out which handlers
you should optimize, but the quotas page is the definitive source on
resource usage. Keep in mind that enabling billing for your
application automatically boosts a lot of your quotas, regardless of
whether you actually exceed any of the billable quotas. [7:31-7:35]

- Discussion on SSL support, ETAs on SSL for custom domains, and a
potential SSL bug affecting non-default versions of an app.
[7:39-7:40]

- Q: Are sessions supported in Python? A: Sessions aren't supported
directly by the webapp framework, but you can build your own
implementation fairly easily using cookies and memcache/datastore.
[7:49, 7:51-7:53]

- Q: Are keys-only queries a good way to get a simple count on the
number of entities matching a query? A: Depending on your queries,
this may be the only effective method. In general, we prefer pre-
computation when possible -- if you have a limited number of known
queries, you can just increment a counter when a new entity is written
or updated. For systems where the set of possible queries is large and/
or unknown, then performing a keys-only query is a reasonable
solution. Be sure to cache the result so you don't have to continually
execute this query for every request. Also, remember the datastore
statistics API is available if you need a straight count of every
entity in your datastore or of every entity of a particular kind.
[7:50-7:52, 7:54-7:59, 8:03]


--FULL
TRANSCRIPT---
[7:00pm] apijason_google: Good evening (or morning as the case may
be)! I and a few other App Engine engineers will be here for the next
hour to answer your questions, so fire away.
[7:01pm] chilts: sweet, didn't realise it was now
[7:01pm] chilts: (not that I have a question)
[7:02pm] apijason_google: Well, just in case you have one later.
[7:03pm] chilts: apijason_google: any idea if Google are working on
patching the python-openid library to make it Google Apps compatible
(ie. does the host-meta discovery method)?
[7:04pm] chilts: it would be good so Python people on AppEngine can
start doing Marketplace apps more easily for _all_ Google Apps
Enterprise customers
[7:04pm] AreEmmKay: I saw a commit on AEOID about that
[7:04pm] • chilts goes to check it out
[7:05pm] AreEmmKay: http://github.com/Arachnid/aeoid  Add preliminary
support for Google Apps openid 
[7:05pm] chilts: I did see Nick's post about putting an /openid page
on your site, but that would be much better
[7:05pm] chilts: ah, March 13th
[7:05pm] chilts: cool, thanks AreEmmKay
[7:05pm] AreEmmKay: np
[7:06pm] apijason_google: I'm not positive on the implementation
details, but OpenID enhancements will be added in a future release. I
don't know if you caught the Built-in support for OAuth  OpenID
item in our latest product roadmap.
[7:06pm] chilts: saw that on the roadmap yeah
[7:06pm] chilts: can't wait
[7:06pm] molson: Trying to view a specific class in my datastore via
the datastore 

[google-appengine] stuck in loop, deploying

[martinfcasey]

i've deployed and am getting messages rolling back, to keep waiting:

Will check again in 16 seconds.
Checking if new version is ready to serve.
Will check again in 32 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.

anyone know how to unstick?

- martin
- id: xinbox-crm

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[google-appengine] Re: stuck in loop, deploying

[gg]

Same problem here also reported in the Java forum

On Apr 20, 3:00 pm, martinfcasey martinfca...@gmail.com wrote:
 i've deployed and am getting messages rolling back, to keep waiting:

 Will check again in 16 seconds.
 Checking if new version is ready to serve.
 Will check again in 32 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.

 anyone know how to unstick?

 - martin
 - id: xinbox-crm

 --
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 Google App Engine group.
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[google-appengine] Re: stuck in loop, deploying

[Marco Brambilla]

I'm experiencing exactly the same problem.


On Apr 21, 12:00 am, martinfcasey martinfca...@gmail.com wrote:
 i've deployed and am getting messages rolling back, to keep waiting:

 Will check again in 16 seconds.
 Checking if new version is ready to serve.
 Will check again in 32 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.

 anyone know how to unstick?

 - martin
 - id: xinbox-crm

 --
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[google-appengine] Having trouble updating my app

[Will Tran]

Hi,

I am running appcfg.py and the credentials are correct. It seems to
have uploaded the new files but continuously is stuck with the message
Checking if new version is ready to serve. Will check again in 60
seconds. Can you help on this?

Thank you for your hard work on App Engine.

Application: thevinci88; version: 4.
Server: appengine.google.com.
Scanning files on local disk.
Initiating update.
Cloning 12 static files.
Cloning 49 application files.
Uploading 1 files and blobs.
Uploaded 1 files and blobs
Deploying new version.
Checking if new version is ready to serve.
Will check again in 1 seconds.
Checking if new version is ready to serve.
Will check again in 2 seconds.
Checking if new version is ready to serve.
Will check again in 4 seconds.
Checking if new version is ready to serve.
Will check again in 8 seconds.
Checking if new version is ready to serve.
Will check again in 16 seconds.
Checking if new version is ready to serve.
Will check again in 32 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
Checking if new version is ready to serve.
Will check again in 60 seconds.
...
...
...


Will

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[google-appengine] Calculating datastore usage per user of app

[jeffrey]

Hi,

i'd like to implement user-based quotas in my app, something like 100
mb per user, for example. Are there any good methods for going about
this? Each of my persisted objects have a userid field. So, optimally
I'd like a means of asking How much datastorage space is user xxx
currently using? I'd also like to know per-user the blob storage. (My
app will be on the Google App Marketplace.)

I'm not 100% familar with AppEngine's functionality so if this
functionality is described somewhere already a link will suffice.

Thanks

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[google-appengine] Re: stuck in loop, deploying

[Will Tran]

I have the same problem. After awhile it does this:

2010-04-20 15:05:02,479 WARNING appcfg.py:1428 Version still not ready
to serve, aborting.
2010-04-20 15:05:02,479 ERROR appcfg.py:1568 An unexpected error
occurred. Aborting.
Traceback (most recent call last):
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 1557, in DoUpload
self.Commit()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 1429, in Commit
raise Exception('Version not ready.')
Exception: Version not ready.
Rolling back the update.
Traceback (most recent call last):
  File /usr/local/bin/appcfg.py, line 68, in module
run_file(__file__, globals())
  File /usr/local/bin/appcfg.py, line 64, in run_file
execfile(script_path, globals_)
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 2709, in module
main(sys.argv)
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 2700, in main
result = AppCfgApp(argv).Run()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 1763, in Run
self.action(self)
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 2580, in __call__
return method()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 2070, in Update
lambda path: open(os.path.join(basepath, path), 'rb'))
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 1557, in DoUpload
self.Commit()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
google/appengine/tools/appcfg.py, line 1429, in Commit
raise Exception('Version not ready.')
Exception: Version not ready.


On Apr 20, 3:00 pm, martinfcasey martinfca...@gmail.com wrote:
 i've deployed and am getting messages rolling back, to keep waiting:

 Will check again in 16 seconds.
 Checking if new version is ready to serve.
 Will check again in 32 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.
 Checking if new version is ready to serve.
 Will check again in 60 seconds.

 anyone know how to unstick?

 - martin
 - id: xinbox-crm

 --
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[google-appengine] Re: Python script Google Authentication for a GAE Application

[Michael Byrd]

That is exactly what I was looking for.  In retrospect, looking
through the SDK probably should have come sooner.   I'll do that in
the future.

Thank you very much, Nick.

On Apr 20, 4:12 am, Nick Johnson (Google) nick.john...@google.com
wrote:
 Hi Michael,

 The appengine_rpc module from the SDK handles all 
 this:http://code.google.com/p/googleappengine/source/browse/trunk/python/g...

 http://code.google.com/p/googleappengine/source/browse/trunk/python/g...You
 can use it directly in your app, and let it take care of authentication to
 an App Engine application.

 -Nick Johnson

 On Mon, Apr 19, 2010 at 9:34 PM, Michael Byrd 
 nerdymcnerdy...@gmail.comwrote:





  Hi Everyone,

  I'm having a hard time figuring this out and I'm hoping someone can
  point me in the right direction for what to read.

  I've written an appengine app, a servlett, that will accept data from
  a get request, check if the user is signed in to a google account and
  then store the data from the request in the datastore (with a User as
  part of the model).  All pretty standard.

  I'd like for a python script to be able to automate the data input
  (think returning the results of s...@home) but it's important that the
  python client be able to authenticate itself via a google account.

  I'm at a bit of a loss for where to even start... these seem like good
  places, but I don't even know enough to be sure which, if any, will
  work:

 http://code.google.com/apis/accounts/docs/OAuthForInstalledApps.html
  -- seems like the best shot but they say as a log in for 'one or more
  google service' which I'm not sure my app counts as..

 http://code.google.com/appengine/docs/python/tools/uploadingdata.html
  -- I think this is not so good as I would have to give every user too
  lenient permissions for my app

  I've looked through the gdata source code as well trying to
  authenticate with a generic service, but I'm not sure if gdata
  authentication is universal enough to work with an arbitrary appengine
  app.

  Ideally if someone can get me started or point me at the correct place
  that would be great.

  I'd rather not do this over email or xmpp, but I'm considering those
  options.

  Thank you anyone for your help!,
  Michael

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 Registered in Dublin, Ireland, Registration Number: 368047
 Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number:
 368047

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Re: [google-appengine] Re: stuck in loop, deploying

[Ikai L (Google)]

Can you guys let us know if this is still happening? We were pushing a
backend service, which may have caused deploys to take longer than usual.

On Tue, Apr 20, 2010 at 3:06 PM, Will Tran will.leafmed...@gmail.comwrote:

 I have the same problem. After awhile it does this:

 2010-04-20 15:05:02,479 WARNING appcfg.py:1428 Version still not ready
 to serve, aborting.
 2010-04-20 15:05:02,479 ERROR appcfg.py:1568 An unexpected error
 occurred. Aborting.
 Traceback (most recent call last):
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 1557, in DoUpload
self.Commit()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 1429, in Commit
raise Exception('Version not ready.')
 Exception: Version not ready.
 Rolling back the update.
 Traceback (most recent call last):
  File /usr/local/bin/appcfg.py, line 68, in module
run_file(__file__, globals())
  File /usr/local/bin/appcfg.py, line 64, in run_file
execfile(script_path, globals_)
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 2709, in module
main(sys.argv)
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 2700, in main
result = AppCfgApp(argv).Run()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 1763, in Run
self.action(self)
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 2580, in __call__
return method()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 2070, in Update
lambda path: open(os.path.join(basepath, path), 'rb'))
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 1557, in DoUpload
self.Commit()
  File /Applications/GoogleAppEngineLauncher.app/Contents/Resources/
 GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/
 google/appengine/tools/appcfg.py, line 1429, in Commit
raise Exception('Version not ready.')
 Exception: Version not ready.


 On Apr 20, 3:00 pm, martinfcasey martinfca...@gmail.com wrote:
  i've deployed and am getting messages rolling back, to keep waiting:
 
  Will check again in 16 seconds.
  Checking if new version is ready to serve.
  Will check again in 32 seconds.
  Checking if new version is ready to serve.
  Will check again in 60 seconds.
  Checking if new version is ready to serve.
  Will check again in 60 seconds.
  Checking if new version is ready to serve.
  Will check again in 60 seconds.
  Checking if new version is ready to serve.
  Will check again in 60 seconds.
  Checking if new version is ready to serve.
  Will check again in 60 seconds.
  Checking if new version is ready to serve.
  Will check again in 60 seconds.
 
  anyone know how to unstick?
 
  - martin
  - id: xinbox-crm
 
  --
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 groups.google.com/group/google-appengine?hl=en.

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Developer Relations, Google App Engine
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Google App Engine links:
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Re: [google-appengine] java.io.IOException: Error posting to URL: http://appengine.google.com/api/appversion/create?app_id=9905107version=1

[Roshni Basu]

Yeah my appication id is id: 9905107 and tried with it. I could see it in
console.

On Wed, Apr 21, 2010 at 1:33 AM, Ikai L (Google) ika...@google.com wrote:

 This application doesn't exist. Do you see it in your admin console?
 Perhaps there is a typo.

 I'm looking at application with id: 9905107


 On Tue, Apr 20, 2010 at 4:59 AM, Roshni Basu roshni...@gmail.com wrote:

 I had an app engine id which i had got long time back . Now i tried
 using the same id for deploying a new application to appengine. This
 did not work. I'm getting the following exception:

 java.io.IOException: Error posting to URL:
 http://appengine.google.com/api/appversion/create?app_id=xxversion=1;
 404 Not Found
 This application does not exist (app_id=u'xx').

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Re: [google-appengine] my domains not work in GAE, 通过GAE安装的域名无法访问了

[Will]

Yes, your guess is correct, it is because of GFW.

Will

2010/4/20 时空之蕊 skzr@gmail.com

 以前可以通过自己的域名访问GAE程序，目前在中国大陆无法通过自己的域名访问GAE程序

 难道是伟大的GFW?

 in china now we can't visit my gae(http://cms4gae.appspot.com/) with
 my domain: http://extjs.cms4g.org

 but i can visit my domain http://extjs.cms4g.org with a proxy!
 Why?

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[google-appengine] Warning: This request caused a new process to be started for your application

[Kyle Jensen]

I'm seeing a ton of these warnings today:

This request caused a new process to be started for your application,
and thus caused your application code to be loaded for the first time.
This request may thus take longer and use more CPU than a typical
request for your application.

This is the first time ever.  No code changes.  I feel like it might
be on the gae side???

[This guy too apparently 
http://gaengine.blogspot.com/2010/04/new-warning-message-in-logs.html
]

-Kyle

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[google-appengine] Access from China on and off again

[Will]

Access from China to yourapp.appspot.com is on and off again since
yesterday, seemingly because google started to rotate one server,
74.125.127.141, which is blocked by GFW, behind its DNS cluster serving
China. Access to www.yourdomain.com has been denied in China for a long
time.

Can Google support team here pass the message to the appropriate unit? If
not, where can I raise the issue to?

Thanks,

Will

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[google-appengine] Re: Inbound emails on own domain

[Wooble]

You'll need to setup your domain to forward the relevant emails to
your appspotmail.com address.

On Apr 20, 7:42 pm, akakunin akaku...@gmail.com wrote:
 Hi!

 I'mcurrently testing inbound email handling and may process emails
 sent to some email like u...@appid..appspotmail.com

 In case I will use my own domain name for this application (so, web UI
 will be available atwww.mydomain.com) - will I be able to handle
 emails sent to u...@mydomain.com?

 Should I do any settings for it in Google Apps account (used for
 managing mydomain.com)?

 Thanks for help!

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Re: [google-appengine] java.io.IOException: Error posting to URL: http://appengine.google.com/api/appversion/create?app_id=9905107version=1

[Roshni Basu]

How to solve this issue?

On Wed, Apr 21, 2010 at 8:10 AM, Roshni Basu roshni...@gmail.com wrote:

 Yeah my appication id is id: 9905107 and tried with it. I could see it in
 console.


 On Wed, Apr 21, 2010 at 1:33 AM, Ikai L (Google) ika...@google.comwrote:

 This application doesn't exist. Do you see it in your admin console?
 Perhaps there is a typo.

 I'm looking at application with id: 9905107


 On Tue, Apr 20, 2010 at 4:59 AM, Roshni Basu roshni...@gmail.com wrote:

 I had an app engine id which i had got long time back . Now i tried
 using the same id for deploying a new application to appengine. This
 did not work. I'm getting the following exception:

 java.io.IOException: Error posting to URL:

 http://appengine.google.com/api/appversion/create?app_id=xxversion=1;
 404 Not Found
 This application does not exist (app_id=u'xx').

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[google-appengine] Re: Sign in to Google App Engine Programmatically

[Joe]

Does anyone know if it's possible to do this? I am also trying to
create Google App Engine ID programmatically.

On Apr 19, 10:22 pm, Joe form.manager.tes...@gmail.com wrote:
 Hi,

 I'm trying to log in to Google App Engine with my Google Account, and
 I was wondering if it's possible to do this programmatically.
 I want to retrieve all the App ID that I have in Google App Engine
 (https://appengine.google.com/) through my application (written in
 Java).

 What kind of authentication would be needed to do this? Can I use
 ClientLogin for this?

 Thanks!!

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[google-appengine] Re: The API call mail.Send() required more quota than is available.

[suri]

Thanks Wooble for reply,
actually I made speed to 1/m but then also it raised same exception

On Apr 20, 8:37 pm, Wooble geoffsp...@gmail.com wrote:
 On Apr 20, 10:01 am, suri suresh1d...@gmail.com wrote:

  Hi,
  I am using free google app engine service. I am trying to use queue to
  send mail as background process. But queue is able to send mail to
  only 11 email-ids and then it raise exception as like given below
  OverQuotaError: The API call mail.Send() required more quota than is
  available.

 You'll probably need to make your queue run more slowly if you want to
 stay within the free quota.  You're limited to 8 recipients per
 minute; enabling billing will increase that to 5,100 per minute.

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[google-appengine] impersonation in task queue

[Bhavana]

In my application i need to send mail to more than 1000 people,so for
this i used task queue.but now my problem is other than admin no one
can send mail from my application. the errror ' unauthorised sender '
is raising. Even the person who is in that application also is not
able to send mails.pls help me out.

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Re: [google-appengine] Inbound emails on own domain

[zooly zou]

ok, you could read this blog , some summary here:
http://www.hapeblog.com/blog.shtml?id=20001

On Wed, Apr 21, 2010 at 7:42 AM, akakunin akaku...@gmail.com wrote:

 Hi!

 I'mcurrently testing inbound email handling and may process emails
 sent to some email like u...@appid..appspotmail.com

 In case I will use my own domain name for this application (so, web UI
 will be available at www.mydomain.com) - will I be able to handle
 emails sent to u...@mydomain.com?

 Should I do any settings for it in Google Apps account (used for
 managing mydomain.com)?

 Thanks for help!

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[google-appengine] Re: Chat Time transcript for April 7, 2010

[Andy Freeman]

BTW, the task queue uses the datastore for tasks that are bigger than
10k or so.  (The SDK code tries to add the task queue entry, but that
fails for large task queue items, so it stores them in the datastore
and then writes a task queue entry that reads from the datastore and
deletes what it stored when the task succeeds.)

In other words, you can't necessarily use the task queue to avoid
making the user wait for datastore writes.

On Apr 20, 2:07 pm, Jason (Google) apija...@google.com wrote:
 The high-level summary and complete transcript of the April 7th
 edition of the IRC office hours is pasted below. Please join us on the
 first and third Wednesday of every month in the #appengine channel on
 irc.freenode.net. On the first Wednesday, we meet in the channel from
 7:00-8:00 p.m. PST (evening hours), and on the third Wednesday (e.g.
 TOMORROW, 4/21), we're available from 9:00-10:00 a.m. PST (morning
 hours).

 - Jason

 --SUMMARY---
 - Discussion of existing App Engine-compatible OpenID libraries and
 forthcoming built-in support for OpenID and OAuth [7:03-7:09]

 - Remember, back up your code or use a secure version control system
 -- we cannot help you recover your code in the event of corruption or
 theft, so backup early and often. Also, 
 seehttp://stackoverflow.com/questions/2479087/can-i-restore-my-source-co
 [7:11-7:16]

 - Q: Is it feasible to push every write to the task queue instead of
 making the user wait for the write to complete inside a handler? A:
 While this should work, there are two things to keep in mind: 1) the
 number of task insertions is currently limited to 1M per day -- if you
 make more than one million writes each day, this solution will fail.

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