[appengine-java] Re: Request for best practice ideas for deployment of GWT JARs in AppEngine project

[Daniel Florey]

Hi,
our approach is to split up gwt modules into xxx-user.jar and 
xxx-server.jar. You can then copy the xxx-server.jar (containing only 
server/shared code) to WEB-INF/lib.
What 3rd party modules are you referring to?

Daniel

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[appengine-java] Re: Channel API reconnect after token timeout

[Daniel Florey]

I've received a reasonable workaround from Google Enterprise Support:
You can use a timer on the client side to renew the token before it 
expires. This will work somehow...

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[appengine-java] Re: Eclipse doesn't automatically reload anymore

[Daniel]

Solved (sort of).

I went back through the tutorial here: 
http://code.google.com/appengine/docs/java/tools/eclipse.html

I should have been debugging as:

 *Debug As* > *Web Application* 

It now works just like it should

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[appengine-java] Re: Eclipse doesn't automatically reload anymore

[Daniel]

I have now uninstalled Java7 so that only Java6 is installed.

I also uninstalled and reinstalled Eclipse. Changes to classes still don't 
show up until I stop the web application and the start it again using 'Run 
as'

Any ideas of what I can troubleshoot next?

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[appengine-java] Re: Eclipse doesn't automatically reload anymore

[Daniel]

I'm not sure if this is related, but I'm getting errors with DataNucleus 
Enhancer. Here's what I'm getting:

DataNucleus Enhancer (version 1.1.4) : Enhancement of classes
DataNucleus Enhancer completed with success for 0 classes. Timings : 
input=42 ms, enhance=0 ms, total=42 ms. Consult the log for full details
DataNucleus Enhancer completed and no classes were enhanced. Consult the 
log for full details

I also noticed that my Windows 7 machine has JRE7 installed. It all worked 
when I first set it up, but now it's not for some unknown reason.

I'm only working with the sample 'Hello World' servlet that is 
automatically generated with a new project. There are no modifications...

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[appengine-java] Eclipse doesn't automatically reload anymore

[Daniel]

When I first got eclipse setup, it would automatically reinsert newly 
compiled objects into the running server so that all I had to do was 
refresh the page in the browser to see my changes. For some reason this 
stopped working. 

I don't see any errors in the error log for eclipse and it appears to be 
building the objects as before. When I stop the server and do the 'Run as' 
to start the web application again it shows the new changes. 

Any idea why this would stop working and how to get it back?

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[appengine-java] Re: Conversion API: Best way to track down conversion issues?

[Daniel Florey]

Everything works fine now! I've been just messing up the pdf document by 
streaming it to the client with the wrong encoding...

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[appengine-java] Conversion API: Best way to track down conversion issues?

[Daniel Florey]

Hi,
I'm getting started with the new Conversion API. While it works like a 
charm for some documents (html->pdf) I end up with empty pdf's for others.
The pdf's seem to be generated with Prince (princexml.com), so I've 
downloaded the latest release to track down the issue.
Prince converts the documents just fine, so I'm wondering which version is 
used on GAE?
Or is there another way to get more debug info?

Thanks,
Daniel

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[appengine-java] Re: Channel API reconnect after token timeout

[Daniel Florey]

Still I experience issues when a token times out.
Did anybody manage to renew a timed out token?

Thanks,
Daniel

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[appengine-java] Re: Channel API reconnect after token timeout

[Daniel Florey]

...finally figured out how to properly remove the iframe from a GWT app:

public static native void removeChannelApi() /*-{
  var child = $wnd.parent.document.getElementById("wcs-iframe");
  if ( child != null ) {
   child.parentNode.removeChild(child);
  }
}-*/;

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[appengine-java] Channel API reconnect after token timeout

[Daniel Florey]

Hi,
I'm not able to re-open a channel after the token expired.
I'm using GWT on the client side.
I am creating a new channel after the onError() method is called when the 
token expires. 
Everything looks ok but I do not get any events after reopening the channel.
I've read in another thread that I had to delete the iframe manually, but 
this did not help either.
Any ideas?
Anybody managed to properly reconnect after timeout using GWT?

Thanks,
Daniel


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[appengine-java] java.util.ResourceBundle.Control is not supported by Google App Engine's Java runtime environment

[Daniel]

Hi, I wanted to use this class and added its import import
java.util.ResourceBundle.Control

The java.util.ResourceBundle class is on google white list , so can it
be that java.util.ResourceBundle.Control is not on the white list?
isn't it supposed to be included in the white list if the import
java.util.ResourceBundle IS included?


???

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[appengine-java] Re: Templating Frameworks

[Daniel Florey]

You can check out our comparison page for the different engines available:
http://code.google.com/p/jmte/wiki/Comparison 

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[appengine-java] Re: Templating Frameworks

[Daniel Florey]

We have open sourced our template engine running on GAE a while ago:
http://code.google.com/p/jmte/ 

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[appengine-java] Re: Change from String to Integer , now can't rid of Zombie instances... what is the right procedure to do so?

[Daniel]

Thx 4 the detailed example, Will read it at later on today

Daniel.

On Nov 1, 6:40 pm, Ronoaldo José de Lana Pereira
 wrote:
> Daniel,
>
> To "convert" old session data I started to persist just the user Id in
> session. Sadly, unlike memcache, you can't control how the session is
> deserialized. In my case, any request with has the old user data in session
> was throwing 500 erros and I couldn't control this behavior (it was a
> filter from the gae...). What I did was something like this:
>
> public MyUser getCurrentUser(HttpServletRequest req) {
>    Object userOrId = req.getSession().getAttribute("user");
>    if (userOrId instanceof Long) {
>       return loadUserFromDsOrMemcache((Long) userOrId);
>    } else {
>       // Remove user from session and start storing ID for next change to
> User class dont raise exceptoins ...
>       User user = (User) userOrId;
>       req.getSession().setAttribute("user", user.getId());
>       return user;
>    }
>
> }
>
> This way I could get rid of storing this in session and of the app being
> unacessible when I changed my model (wich was happening heavly by the
> way...). Note that at the time I deployed this code, the User object hasn't
> changed.
>
> After running this for a while (you can expire sessions or delete them in
> bulk from the datastore so you can force them to expire, I deployed the new
> version.
>
> To store json data, you may use some json library that can map/convert
> to/from Java -> Json, like Google Gson:
>
> String userJson = new Gson().toJson(user);
> req.getSession().setAttribute("user", userJson);
> (...)
>
> String userJson = (String) req.getSession().getAttribute("user");
> if (userJson != null) {
>    User user = new Gson().fromJson(User.class, userJson);
>
> }
>
> This way you can add/remove fields to you model, and old session data will
> be restored as expected. Note that is a good practice to set defaults for
> the new fields, so your session data won't create unusable objects. In your
> original post, the change from string to integer may be solved by
> overriding the Gson de-serializer to handle the id field as number and not
> as string. I guess that you can change the way Java will de-serialize your
> classes too, but I'm not sure if this will solve your particular issue
> mentioned.
>
> Not sure if this is the best way to handle, but this is how I solved on our
> live app.
>
> More on Gson:http://code.google.com/p/google-gson/.
>
> Hope this helps (sorry for some typos or misspelled words)
>
> Best Regards,
>
> -Ronoaldo

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[appengine-java] Re: Change from String to Integer , now can't rid of Zombie instances... what is the right procedure to do so?

[Daniel]

Thanks for the suggestions,

Ian's sounds unrealistic (to me at least)

Ronaldo, could you please explain more about the method you are using?
or post some references/url's so i could read some more?


Thanks!

On Oct 30, 10:33 am, Ian Marshall  wrote:
> You might want to implement an alternative procedure of the following
> stages to change the data type of your data mamber = field:
>
> 1.  Add the data member quantityToAddNew of data type Integer. Use
> this in your code instead of quantityToAdd. Deploy.
> 2.  After a suitable delay (at least 24 hours?): change the data type
> of the data member quantityToAdd to Integer. Use this in your code
> instead of quantityToAddNew. Deploy.
> 3.  After a suitable delay (at least 24 hours?): remove the data
> member quantityToAddNew. Deploy. You're done.
>
> Enjoy?
>
> On Oct 29, 11:44 pm, Ronoaldo José de Lana Pereira
>
>
>
>
>
>
>
>  wrote:
> > Sine you are talking about _ah_SESSION stuff I suppose you are serializing
> > ToBuyBeans to the sessions. On AppEngine, sessions are implemented using a
> > combination of datastore and memecache. When you deleted your old session
> > data from the datastore, the memcache was still there, and only when they
> > got flushed your problem was "automatic" solved.
>
> > Sadly, I was having this trouble too previously, and the only way to get
> > rid of it was to deploy a versions that was trying to fetch data from
> > session and "convert" to new format or invalidate the session. This is very
> > odd, tought, so I started to store only unchanged data, like a JSON
> > representation of you objects, that will never stop your app when you
> > change your code and redeploy. Gson and flex-json are good start points,
> > apart from the fact that they add some small conversion overhead before
> > store data in session.
>
> > Hope this helps (sorry for typos ... I'm sleepy)
>
> > -Ronoaldo

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[appengine-java] Re: Change from String to Integer , now can't rid of Zombie instances... what is the right procedure to do so?

[Daniel]

And 1 more thing , the error got fixed by itself, after several hours,
the "previously-existing ToBuyBean persistent entities" were somehow
deleted (not by me)...

so how can i do it by myself if i want to?

Thanks ahead

On Oct 29, 10:20 pm, Daniel  wrote:
> The ToBuyBean class indeed implements Serializable  , (but its not
> stored or persisted in the DB)
>
> How can I get rid of "previously-existing ToBuyBean persistent
> entities?"
>
> On Oct 28, 10:14 am, Ian Marshall  wrote:
>
> > If you are getting this exception when running on the GAE/J cloud,
> > have you deleted all your previously-existing ToBuyBean persistent
> > entities? (This would ensure that no ToBuyBean persistent entity
> > exists that has a quantityToAdd already persisted as a string.)
>
> > On Oct 27, 10:14 pm, Daniel  wrote:
>
> > > HI
>
> > > I'm getting
>
> > > Nested in javax.servlet.ServletException:
> > > java.lang.ClassCastException: cannot assign instance of
> > > java.lang.String to field dr.todo.beans.ToBuyBean.quantityToAdd of
> > > type java.lang.Integer in instance of dr.todo.beans.ToBuyBean:
>
> > > cause I had a String and now i changed it to Integer and updated my
> > > application, and i deleted all _ah_SESSION entrys, but it still does
> > > not work...
>
> > > how can i properly get rid of all the Zombie data upon updating my
> > > application from eclipse?
>
> > > I don't want to wait for couple of hours , I want to get rid of all
> > > the Zombies right after the upgrade...
>
> > > What is the best practice for it?
>
> > > Thanks ahead,
>
> > > Daniel.
>
>

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[appengine-java] Re: Change from String to Integer , now can't rid of Zombie instances... what is the right procedure to do so?

[Daniel]

The ToBuyBean class indeed implements Serializable  , (but its not
stored or persisted in the DB)

How can I get rid of "previously-existing ToBuyBean persistent
entities?"

On Oct 28, 10:14 am, Ian Marshall  wrote:
> If you are getting this exception when running on the GAE/J cloud,
> have you deleted all your previously-existing ToBuyBean persistent
> entities? (This would ensure that no ToBuyBean persistent entity
> exists that has a quantityToAdd already persisted as a string.)
>
> On Oct 27, 10:14 pm, Daniel  wrote:
>
> > HI
>
> > I'm getting
>
> > Nested in javax.servlet.ServletException:
> > java.lang.ClassCastException: cannot assign instance of
> > java.lang.String to field dr.todo.beans.ToBuyBean.quantityToAdd of
> > type java.lang.Integer in instance of dr.todo.beans.ToBuyBean:
>
> > cause I had a String and now i changed it to Integer and updated my
> > application, and i deleted all _ah_SESSION entrys, but it still does
> > not work...
>
> > how can i properly get rid of all the Zombie data upon updating my
> > application from eclipse?
>
> > I don't want to wait for couple of hours , I want to get rid of all
> > the Zombies right after the upgrade...
>
> > What is the best practice for it?
>
> > Thanks ahead,
>
> > Daniel.
>
>

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[appengine-java] Change from String to Integer , now can't rid of Zombie instances... what is the right procedure to do so?

[Daniel]

HI

I'm getting

Nested in javax.servlet.ServletException:
java.lang.ClassCastException: cannot assign instance of
java.lang.String to field dr.todo.beans.ToBuyBean.quantityToAdd of
type java.lang.Integer in instance of dr.todo.beans.ToBuyBean:

cause I had a String and now i changed it to Integer and updated my
application, and i deleted all _ah_SESSION entrys, but it still does
not work...


how can i properly get rid of all the Zombie data upon updating my
application from eclipse?

I don't want to wait for couple of hours , I want to get rid of all
the Zombies right after the upgrade...

What is the best practice for it?

Thanks ahead,



Daniel.

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[appengine-java] Parsing XML on GAE/Java

[Daniel Florey]

Hi,
just wanted to share my experience with parsing XML on App Engine/Java:
http://www.floreysoft.net/en/blog.html

Cheers,
Daniel

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Re: [appengine-java] Re: Snapshots...

[Daniel Viveiros]

Thank you! This is really a good post.

Best,
Daniel V.

2011/9/28 Jose Montes de Oca 

> Hi Daniel,
>
> Take a look at our Bulkloader Tool:
> http://code.google.com/appengine/docs/python/tools/uploadingdata.html
>
> Here is a great post:
> http://ikaisays.com/2010/06/10/using-the-bulkloader-with-java-app-engine/
>
> Hope this helps your needs!
>
> Best,
> Jose Montes de Oca
>
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[appengine-java] Snapshots...

[Daniel Viveiros]

Hi all,

What's the best way to take snapshots of the GAE's database in a way it's
possible to backup/restore it if needed?

Thanks,
Daniel V.

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[appengine-java] Image API

[Daniel Viveiros]

Hi all,

I'm considering to use Google App Engine as the platform of a new
application that will have to handle several image transformations such as
blur, sepia, gray scale etc. GAE's Image API seems nice but very limited. As
far as I know, GAE does not support Java 2D or Java Advanced Imaging.

Is there another component/framework for imaging processing/transformation
that I can use in GAE?

Thanks,
Daniel V.

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[appengine-java] Re: Writing to google spreadsheet from GAE

[Daniel Florey]

I've been able to access spreadsheets from GAE without problems.
The only problem is the limited upload size for URLFetch that makes it 
impossible to upload large pre-populated sheets.
Other than that it worked without problmes...

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[appengine-java] Re: SocketTimeoutException when doing URLFetch between 2 apps

[Daniel Florey]

Any ideas anyone?

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[appengine-java] SocketTimeoutException when doing URLFetch between 2 apps

[Daniel Florey]

Since a few days I get SocketTimeoutException when trying to communicate 
between two different apps running on app engine.
App A calls B, B calls back A and this causes the timeout.
I've increased the URLFetch timeout to the max but still see this error. It 
is reproducible.
I've turned threadsafe on/off but this makes no difference.

Help appreciated,

Daniel

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[appengine-java] Re: Java OAuth API, example

[Daniel Florey]

...or are you interested in implementing an OAuth provider? Then of
course it is a different story.

On Sep 11, 11:12 pm, Daniel Florey  wrote:
> As it is not related to GAE you should check the GData docs. You'll
> find all the good stuff there.
>
> On Sep 11, 1:56 pm, de Witte  wrote:
>
>
>
>
>
>
>
> > Hello,
>
> > I'm trying to find any example for the OAuth API.
>
> > The trunk forhttp://oauthexample.appspot.com/Welcomeseemsto be empty.
>
> >http://code.google.com/p/googleappengine/source/browse/#svn%2Ftrunk%2...
>
> > Are there any other examples?
>
> > Can google upload the code of oauthexample.
>
> > -Wendel

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[appengine-java] Re: Java OAuth API, example

[Daniel Florey]

As it is not related to GAE you should check the GData docs. You'll
find all the good stuff there.

On Sep 11, 1:56 pm, de Witte  wrote:
> Hello,
>
> I'm trying to find any example for the OAuth API.
>
> The trunk forhttp://oauthexample.appspot.com/Welcomeseems to be empty.
>
> http://code.google.com/p/googleappengine/source/browse/#svn%2Ftrunk%2...
>
> Are there any other examples?
>
> Can google upload the code of oauthexample.
>
> -Wendel

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[appengine-java] Strange datastore exception

[Daniel Florey]

Anybody seen this exception before?

Thanks for your help,
Daniel


Caused by: java.lang.IllegalArgumentException: app s~floreysoftucm cannot 
access app floreysoftucm's data
at 
com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java:36)
at 
com.google.appengine.api.datastore.DatastoreApiHelper$1.convertException(DatastoreApiHelper.java:98)
at 
com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:69)
at 
com.google.appengine.api.datastore.FutureHelper$CumulativeAggregateFuture.get(FutureHelper.java:144)
at 
com.google.appengine.api.datastore.FutureHelper.getInternal(FutureHelper.java:72)
at 
com.google.appengine.api.datastore.FutureHelper.quietGet(FutureHelper.java:33)
at 
com.google.appengine.api.datastore.DatastoreServiceImpl$1.runInternal(DatastoreServiceImpl.java:78)
at 
com.google.appengine.api.datastore.DatastoreServiceImpl$1.runInternal(DatastoreServiceImpl.java:75)
at 
com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java:31)
at 
com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java:75)
at 
com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java:62)
at com.floreysoft.ucm.server.DB.getContactMaster(DB.java:305)


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Aw: Re: [appengine-java] javax.mail.SendFailedException: Send failure:Unauthorized Sender: Unauthorized sender

[Daniel Florey]

Same problem here.

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Re: [appengine-java] GAE Authentication Broken

[Daniel Werner]

Could someone tell me how this was resolved (if it was)?  I'm running into 
the exact same problem here.

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[appengine-java] Re: jsf view id's expire too quick

[Daniel]

hed the same issues with mojarra 2.0.4 , so i downgraded back to
mojarra 2.0.3 , and it works fine...

On Jun 19, 11:46 pm, Piter Blom  wrote:
> Hi Mich, did you ever resolve this problem?
>
> I've just deployed my first app (mojarra 2.0.4) and I ran into exactly the
> same problem.

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[appengine-java] Re: Why does the info messages stopped appearing in the Logs?

[Daniel]

working!!!


finally

this is the needed line :

dr.level = INFO

upper level of my packages... + "dot" + "level"

this is the line:

dr.level = INFO

On Jun 11, 9:47 pm, Daniel  wrote:
> Thanks alot anyway,
>
> adn yes
>
> my appengine-web.xml is set up correctly,
>
> anotehr weird thing is , event when i set up
>
> # Set the default logging level for all loggers to WARNING
> .level = FINE
>
> and i'm getting tons of jetty logs from FINE level... even than I'm
> not getting any of my logs lower than warning
>
> :/
>
> Can any 1 else throw an idea?
>
> Thanks ahead,
>
> On Jun 11, 11:08 am, Ian Marshall  wrote:
>
> > Sorry that it's not working for you.
>
> > I use NetBeans for my IDE, so I trust that someone else reading this
> > who uses Eclipse can help you better than me.
>
> > (Am I correct to presume that the relevant setting in your "appengine-
> > web.xml" points to the correct "logging.properties" file and
> > location?)
>
> > On Jun 11, 8:59 am, Daniel  wrote:
>
> > > I did as you said in 1 --> did nothing
>
> > > after I did as you said in 2   --> the logs started to appear in my
> > > development eclipse console (*which is really great! , thx , although
> > > only warning and above logs :()
>
> > > did as you said in 3, but did not helped :(
>
> > > i tired this
> > > .level = WARNING
> > > dr.todo.beans.[...].level = FINE
>
> > > and this
> > > .level = WARNING
> > > dr.[...].level = FINE
>
> > > here an example from the code and the output from the logs
>
> > > System.err.println("Inside HoursReportBean Constructor
> > > eerr b4");
> > > log.fine("*Inside HoursReportBean Constructor"+":"+new Date());
> > > log.info("*Inside HoursReportBean Constructor"+":"+new Date());
> > > log.warning("**Inside HoursReportBean Constructor"+":"+new Date());
> > > log.severe("**Inside HoursReportBean Constructor"+":"+new Date());
> > > System.err.println("Inside HoursReportBean Constructor
> > > eerr after");
>
> > > in logs i see the following:
>
> > > #
> > > 2011-06-11 00:58:06.446
>
> > > [vedmack/1.351054244259633422].: Inside HoursReportBean
> > > Constructor eerr b4
>
> > > #
> > > W 2011-06-11 00:58:06.449
>
> > > dr.todo.beans.HoursReportBean : **Inside HoursReportBean
> > > Constructor:Sat Jun 11 07:58:06 UTC 2011
>
> > > #
> > > E 2011-06-11 00:58:06.450
>
> > > dr.todo.beans.HoursReportBean : **Inside HoursReportBean
> > > Constructor:Sat Jun 11 07:58:06 UTC 2011
>
> > > #
> > > W 2011-06-11 00:58:06.450
>
> > > [vedmack/1.351054244259633422].: Inside HoursReportBean
> > > Constructor eerr after
>
> > > 4) its already with lower cases
>
> > > On Jun 10, 11:43 pm, Ian Marshall  wrote:
>
> > > > 1.  Have a look 
> > > > athttp://groups.google.com/group/google-appengine-java/browse_thread/th...
> > > > for a hint about your "appengine-web.xml" file.
>
> > > > 2.  I place my "logging.properties" file in
>
> > > >   /WEB-INF/classes
>
> > > > Why? I cannot remember, but this worked for me.
>
> > > > 3.  Your "logging.properties" file uses its default level, for your
> > > > own classes, of
>
> > > >   # Set the default logging level for all loggers
> > > >   .level = WARNING
>
> > > > I use
>
> > > >   # Set the default logging level for all loggers
> > > >   .level = WARNING
>
> > > >   com.my.app.[...].level = FINE
>
> > > > This then allows my log message of level FINE or more severe to be
> > > > recorded.
>
> > > > 4. Case sensitivity: I recall (perhaps wrongly) that
> > > > "logging.properties" will work whereas "Logging.properties" will not.
>
> > > > Does any of this help?
>
> > > > On Jun 10, 8:33 pm, Daniel  wrote:
>
> > > > > this is the content of the logging.properties file (I have never
> > > > > touched it)
>
> > > > > # A default java.util.logging configuration.
> > > > > # (All App Engine logging is through java.util.logging by default).
> > >

[appengine-java] Re: Why does the info messages stopped appearing in the Logs?

[Daniel]

Thanks alot anyway,

adn yes

my appengine-web.xml is set up correctly,

anotehr weird thing is , event when i set up

# Set the default logging level for all loggers to WARNING
.level = FINE

and i'm getting tons of jetty logs from FINE level... even than I'm
not getting any of my logs lower than warning

:/

Can any 1 else throw an idea?


Thanks ahead,

On Jun 11, 11:08 am, Ian Marshall  wrote:
> Sorry that it's not working for you.
>
> I use NetBeans for my IDE, so I trust that someone else reading this
> who uses Eclipse can help you better than me.
>
> (Am I correct to presume that the relevant setting in your "appengine-
> web.xml" points to the correct "logging.properties" file and
> location?)
>
> On Jun 11, 8:59 am, Daniel  wrote:
>
> > I did as you said in 1 --> did nothing
>
> > after I did as you said in 2   --> the logs started to appear in my
> > development eclipse console (*which is really great! , thx , although
> > only warning and above logs :()
>
> > did as you said in 3, but did not helped :(
>
> > i tired this
> > .level = WARNING
> > dr.todo.beans.[...].level = FINE
>
> > and this
> > .level = WARNING
> > dr.[...].level = FINE
>
> > here an example from the code and the output from the logs
>
> > System.err.println("Inside HoursReportBean Constructor
> > eerr b4");
> > log.fine("*Inside HoursReportBean Constructor"+":"+new Date());
> > log.info("*Inside HoursReportBean Constructor"+":"+new Date());
> > log.warning("**Inside HoursReportBean Constructor"+":"+new Date());
> > log.severe("**Inside HoursReportBean Constructor"+":"+new Date());
> > System.err.println("Inside HoursReportBean Constructor
> > eerr after");
>
> > in logs i see the following:
>
> > #
> > 2011-06-11 00:58:06.446
>
> > [vedmack/1.351054244259633422].: Inside HoursReportBean
> > Constructor eerr b4
>
> > #
> > W 2011-06-11 00:58:06.449
>
> > dr.todo.beans.HoursReportBean : **Inside HoursReportBean
> > Constructor:Sat Jun 11 07:58:06 UTC 2011
>
> > #
> > E 2011-06-11 00:58:06.450
>
> > dr.todo.beans.HoursReportBean : **Inside HoursReportBean
> > Constructor:Sat Jun 11 07:58:06 UTC 2011
>
> > #
> > W 2011-06-11 00:58:06.450
>
> > [vedmack/1.351054244259633422].: Inside HoursReportBean
> > Constructor eerr after
>
> > 4) its already with lower cases
>
> > On Jun 10, 11:43 pm, Ian Marshall  wrote:
>
> > > 1.  Have a look 
> > > athttp://groups.google.com/group/google-appengine-java/browse_thread/th...
> > > for a hint about your "appengine-web.xml" file.
>
> > > 2.  I place my "logging.properties" file in
>
> > >   /WEB-INF/classes
>
> > > Why? I cannot remember, but this worked for me.
>
> > > 3.  Your "logging.properties" file uses its default level, for your
> > > own classes, of
>
> > >   # Set the default logging level for all loggers
> > >   .level = WARNING
>
> > > I use
>
> > >   # Set the default logging level for all loggers
> > >   .level = WARNING
>
> > >   com.my.app.[...].level = FINE
>
> > > This then allows my log message of level FINE or more severe to be
> > > recorded.
>
> > > 4. Case sensitivity: I recall (perhaps wrongly) that
> > > "logging.properties" will work whereas "Logging.properties" will not.
>
> > > Does any of this help?
>
> > > On Jun 10, 8:33 pm, Daniel  wrote:
>
> > > > this is the content of the logging.properties file (I have never
> > > > touched it)
>
> > > > # A default java.util.logging configuration.
> > > > # (All App Engine logging is through java.util.logging by default).
> > > > #
> > > > # To use this configuration, copy it into your application's WEB-INF
> > > > # folder and add the following to your appengine-web.xml:
> > > > #
> > > > # 
> > > > #   
> > > > # 
> > > > #
>
> > > > # Set the default logging level for all loggers to WARNING
> > > > .level = WARNING
>
> > > > # Set the default logging level for ORM, specifically, to WARNING
> > > > DataNucleus.JDO.level=WARNING
> > > > DataNucleus.Persistence.level=WARNING
> > > > DataNucleus.Cache.level=WARNING
> 

[appengine-java] Re: Why does the info messages stopped appearing in the Logs?

[Daniel]

I did as you said in 1 --> did nothing

after I did as you said in 2   --> the logs started to appear in my
development eclipse console (*which is really great! , thx , although
only warning and above logs :()

did as you said in 3, but did not helped :(

i tired this
.level = WARNING
dr.todo.beans.[...].level = FINE


and this
.level = WARNING
dr.[...].level = FINE


here an example from the code and the output from the logs


System.err.println("Inside HoursReportBean Constructor
eerr b4");
log.fine("*Inside HoursReportBean Constructor"+":"+new Date());
log.info("*Inside HoursReportBean Constructor"+":"+new Date());
log.warning("**Inside HoursReportBean Constructor"+":"+new Date());
log.severe("**Inside HoursReportBean Constructor"+":"+new Date());
System.err.println("Inside HoursReportBean Constructor
eerr after");

in logs i see the following:


#
2011-06-11 00:58:06.446

[vedmack/1.351054244259633422].: Inside HoursReportBean
Constructor eerr b4


#
W 2011-06-11 00:58:06.449

dr.todo.beans.HoursReportBean : **Inside HoursReportBean
Constructor:Sat Jun 11 07:58:06 UTC 2011

#
E 2011-06-11 00:58:06.450

dr.todo.beans.HoursReportBean : **Inside HoursReportBean
Constructor:Sat Jun 11 07:58:06 UTC 2011

#
W 2011-06-11 00:58:06.450

[vedmack/1.351054244259633422].: Inside HoursReportBean
Constructor eerr after





4) its already with lower cases

On Jun 10, 11:43 pm, Ian Marshall  wrote:
> 1.  Have a look 
> athttp://groups.google.com/group/google-appengine-java/browse_thread/th...
> for a hint about your "appengine-web.xml" file.
>
> 2.  I place my "logging.properties" file in
>
>   /WEB-INF/classes
>
> Why? I cannot remember, but this worked for me.
>
> 3.  Your "logging.properties" file uses its default level, for your
> own classes, of
>
>   # Set the default logging level for all loggers
>   .level = WARNING
>
> I use
>
>   # Set the default logging level for all loggers
>   .level = WARNING
>
>   com.my.app.[...].level = FINE
>
> This then allows my log message of level FINE or more severe to be
> recorded.
>
> 4. Case sensitivity: I recall (perhaps wrongly) that
> "logging.properties" will work whereas "Logging.properties" will not.
>
> Does any of this help?
>
> On Jun 10, 8:33 pm, Daniel  wrote:
>
> > this is the content of the logging.properties file (I have never
> > touched it)
>
> > # A default java.util.logging configuration.
> > # (All App Engine logging is through java.util.logging by default).
> > #
> > # To use this configuration, copy it into your application's WEB-INF
> > # folder and add the following to your appengine-web.xml:
> > #
> > # 
> > #   
> > # 
> > #
>
> > # Set the default logging level for all loggers to WARNING
> > .level = WARNING
>
> > # Set the default logging level for ORM, specifically, to WARNING
> > DataNucleus.JDO.level=WARNING
> > DataNucleus.Persistence.level=WARNING
> > DataNucleus.Cache.level=WARNING
> > DataNucleus.MetaData.level=WARNING
> > DataNucleus.General.level=WARNING
> > DataNucleus.Utility.level=WARNING
> > DataNucleus.Transaction.level=WARNING
> > DataNucleus.Datastore.level=WARNING
> > DataNucleus.ClassLoading.level=WARNING
> > DataNucleus.Plugin.level=WARNING
> > DataNucleus.ValueGeneration.level=WARNING
> > DataNucleus.Enhancer.level=WARNING
> > DataNucleus.SchemaTool.level=WARNING
>
> > and I have only 1 copy of it, and it was never moved, in WEB-INF
>
> > any ideas?
>
> > On Jun 9, 11:31 am, Ian Marshall  wrote:
>
> > > Hi,
>
> > > A few trouble-shooting questions:
>
> > >   ·  What's in your "logging.properties" file?
> > >   ·  Where is this file? Has it moved recently? Have you more than one
> > > copy of this file?
>
> > > On Jun 8, 2:00 pm, Daniel  wrote:
>
> > > > Hi
>
> > > > I always was writing the info messages to the log (like described in
> > > > here :
>
> > > >http://code.google.com/appengine/docs/java/runtime.html#Logging)
>
> > > > I always used the .info method and the messages were perfectly shown
> > > > in the Admin Log page,
>
> > > > But recently i noticed the .info messages stopped to work, adn
> > > > only .warning and higher are written into the Log...
>
> > > > Why is that?
>
> > > > How can I write .info messages into the log?
>
> > > > import java.util.logging.Logger;
>
> > > > private static final Logger log =
> > > > Logger.getLogger(KeepSessionAliveServlet.class.getName());
>
> > > > log.info("KeepSessionAliveServlet");   <-- not working :(
>
> > > > log.warning("KeepSessionAliveServlet");   <-- does work :/
>
> > > > Any ideas?
>
>

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[appengine-java] Re: Why does the info messages stopped appearing in the Logs?

[Daniel]

I did as you said in 1 --> did nothing

after I did as you said in 2   --> the logs started to appear in my
development eclipse console (*which is really great! , thx , although
only warning and above logs :()

did as you said in 3, but did not helped :(

i tired this
.level = WARNING
dr.todo.beans.[...].level = FINE


and this
.level = WARNING
dr.[...].level = FINE


here an example from the code and the output from the logs


System.err.println("Inside HoursReportBean Constructor
eerr b4");
log.fine("*Inside HoursReportBean Constructor"+":"+new Date());
log.info("*Inside HoursReportBean Constructor"+":"+new Date());
log.warning("**Inside HoursReportBean Constructor"+":"+new Date());
log.severe("**Inside HoursReportBean Constructor"+":"+new Date());
System.err.println("Inside HoursReportBean Constructor
eerr after");

in logs i see the following:


#
2011-06-11 00:58:06.446

[vedmack/1.351054244259633422].: Inside HoursReportBean
Constructor eerr b4


#
W 2011-06-11 00:58:06.449

dr.todo.beans.HoursReportBean : **Inside HoursReportBean
Constructor:Sat Jun 11 07:58:06 UTC 2011

#
E 2011-06-11 00:58:06.450

dr.todo.beans.HoursReportBean : **Inside HoursReportBean
Constructor:Sat Jun 11 07:58:06 UTC 2011

#
W 2011-06-11 00:58:06.450

[vedmack/1.351054244259633422].: Inside HoursReportBean
Constructor eerr after





4) its already with lower cases

On Jun 10, 11:43 pm, Ian Marshall  wrote:
> 1.  Have a look 
> athttp://groups.google.com/group/google-appengine-java/browse_thread/th...
> for a hint about your "appengine-web.xml" file.
>
> 2.  I place my "logging.properties" file in
>
>   /WEB-INF/classes
>
> Why? I cannot remember, but this worked for me.
>
> 3.  Your "logging.properties" file uses its default level, for your
> own classes, of
>
>   # Set the default logging level for all loggers
>   .level = WARNING
>
> I use
>
>   # Set the default logging level for all loggers
>   .level = WARNING
>
>   com.my.app.[...].level = FINE
>
> This then allows my log message of level FINE or more severe to be
> recorded.
>
> 4. Case sensitivity: I recall (perhaps wrongly) that
> "logging.properties" will work whereas "Logging.properties" will not.
>
> Does any of this help?
>
> On Jun 10, 8:33 pm, Daniel  wrote:
>
> > this is the content of the logging.properties file (I have never
> > touched it)
>
> > # A default java.util.logging configuration.
> > # (All App Engine logging is through java.util.logging by default).
> > #
> > # To use this configuration, copy it into your application's WEB-INF
> > # folder and add the following to your appengine-web.xml:
> > #
> > # 
> > #   
> > # 
> > #
>
> > # Set the default logging level for all loggers to WARNING
> > .level = WARNING
>
> > # Set the default logging level for ORM, specifically, to WARNING
> > DataNucleus.JDO.level=WARNING
> > DataNucleus.Persistence.level=WARNING
> > DataNucleus.Cache.level=WARNING
> > DataNucleus.MetaData.level=WARNING
> > DataNucleus.General.level=WARNING
> > DataNucleus.Utility.level=WARNING
> > DataNucleus.Transaction.level=WARNING
> > DataNucleus.Datastore.level=WARNING
> > DataNucleus.ClassLoading.level=WARNING
> > DataNucleus.Plugin.level=WARNING
> > DataNucleus.ValueGeneration.level=WARNING
> > DataNucleus.Enhancer.level=WARNING
> > DataNucleus.SchemaTool.level=WARNING
>
> > and I have only 1 copy of it, and it was never moved, in WEB-INF
>
> > any ideas?
>
> > On Jun 9, 11:31 am, Ian Marshall  wrote:
>
> > > Hi,
>
> > > A few trouble-shooting questions:
>
> > >   ·  What's in your "logging.properties" file?
> > >   ·  Where is this file? Has it moved recently? Have you more than one
> > > copy of this file?
>
> > > On Jun 8, 2:00 pm, Daniel  wrote:
>
> > > > Hi
>
> > > > I always was writing the info messages to the log (like described in
> > > > here :
>
> > > >http://code.google.com/appengine/docs/java/runtime.html#Logging)
>
> > > > I always used the .info method and the messages were perfectly shown
> > > > in the Admin Log page,
>
> > > > But recently i noticed the .info messages stopped to work, adn
> > > > only .warning and higher are written into the Log...
>
> > > > Why is that?
>
> > > > How can I write .info messages into the log?
>
> > > > import java.util.logging.Logger;
>
> > > > private static final Logger log =
> > > > Logger.getLogger(KeepSessionAliveServlet.class.getName());
>
> > > > log.info("KeepSessionAliveServlet");   <-- not working :(
>
> > > > log.warning("KeepSessionAliveServlet");   <-- does work :/
>
> > > > Any ideas?
>
>

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[appengine-java] Re: Why does the info messages stopped appearing in the Logs?

[Daniel]

this is the content of the logging.properties file (I have never
touched it)

# A default java.util.logging configuration.
# (All App Engine logging is through java.util.logging by default).
#
# To use this configuration, copy it into your application's WEB-INF
# folder and add the following to your appengine-web.xml:
#
# 
#   
# 
#

# Set the default logging level for all loggers to WARNING
.level = WARNING

# Set the default logging level for ORM, specifically, to WARNING
DataNucleus.JDO.level=WARNING
DataNucleus.Persistence.level=WARNING
DataNucleus.Cache.level=WARNING
DataNucleus.MetaData.level=WARNING
DataNucleus.General.level=WARNING
DataNucleus.Utility.level=WARNING
DataNucleus.Transaction.level=WARNING
DataNucleus.Datastore.level=WARNING
DataNucleus.ClassLoading.level=WARNING
DataNucleus.Plugin.level=WARNING
DataNucleus.ValueGeneration.level=WARNING
DataNucleus.Enhancer.level=WARNING
DataNucleus.SchemaTool.level=WARNING



and I have only 1 copy of it, and it was never moved, in WEB-INF


any ideas?

On Jun 9, 11:31 am, Ian Marshall  wrote:
> Hi,
>
> A few trouble-shooting questions:
>
>   ·  What's in your "logging.properties" file?
>   ·  Where is this file? Has it moved recently? Have you more than one
> copy of this file?
>
> On Jun 8, 2:00 pm, Daniel  wrote:
>
> > Hi
>
> > I always was writing the info messages to the log (like described in
> > here :
>
> >http://code.google.com/appengine/docs/java/runtime.html#Logging)
>
> > I always used the .info method and the messages were perfectly shown
> > in the Admin Log page,
>
> > But recently i noticed the .info messages stopped to work, adn
> > only .warning and higher are written into the Log...
>
> > Why is that?
>
> > How can I write .info messages into the log?
>
> > import java.util.logging.Logger;
>
> > private static final Logger log =
> > Logger.getLogger(KeepSessionAliveServlet.class.getName());
>
> > log.info("KeepSessionAliveServlet");   <-- not working :(
>
> > log.warning("KeepSessionAliveServlet");   <-- does work :/
>
> > Any ideas?
>
>

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[appengine-java] Why does the info messages stopped appearing in the Logs?

[Daniel]

Hi

I always was writing the info messages to the log (like described in
here :

http://code.google.com/appengine/docs/java/runtime.html#Logging)

I always used the .info method and the messages were perfectly shown
in the Admin Log page,


But recently i noticed the .info messages stopped to work, adn
only .warning and higher are written into the Log...


Why is that?

How can I write .info messages into the log?


import java.util.logging.Logger;

private static final Logger log =
Logger.getLogger(KeepSessionAliveServlet.class.getName());

log.info("KeepSessionAliveServlet");   <-- not working :(

log.warning("KeepSessionAliveServlet");   <-- does work :/

Any ideas?

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[appengine-java] List of supported content types in BlobStore?

[Daniel Florey]

Hi,
is there a list of content types that BlobStore is be able to detect?

Thanks,
Daniel

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[appengine-java] Re: Upload blob never calls success path

[Daniel Florey]

As I expected in the first place I'm just dumb.
After running into a lot of issues (OutOfMemory and alike) I found out that 
I just forgot to attach the form to the site properly ;-)

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[appengine-java] Re: Upload blob never calls success path

[Daniel Florey]

Hi,
thanks a lot for the info.
I did not even upload to App Engine, just using the development server. So I 
guess there is just the default version?

My servlet is never called, so I cannot even send a redirect yet.
I just end up with an entry in the  __BlobUploadSession__ table and I assume 
that I may need to turn on some flags to call my success path after upload?

Is there a way to turn on debug logging for the core services?

Thanks!

Daniel

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[appengine-java] Upload blob never calls success path

[Daniel Florey]

I guess I'm just dumb, but please help me anyway ;-)
I've just tried to upload a blob into the blobstore. When I upload the blobs 
I can see an entry for each upload in the __BlobUploadSession__ table.
I also can see in there that the success path is properly set, but my mapped 
servlet is never called. (I can call it from the browser though, so it seems 
to be mapped correctly).

Do I have to enable some option on the devserver so that the success path 
servlet will be called once the upload is complete?

Thanks for any hints,

Daniel

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[appengine-java] Re: Another transaction by user vedmack is already in progress for app: vedmack, version: 1. That user can undo the transaction with "appcfg rollback".

[Daniel]

actually i didn't i never used this appcfg and i was not aware of
it...

google a bit now and did the rollback :)

i guess i got :cold feet" :)


thx...






On May 21, 11:26 pm, JT  wrote:
> Did you try "appcfg rollback"?
> On May 21, 2011 4:17 PM, "Daniel"  wrote:> Hi I tried to 
> deploy to GAE and noticed that by mistake I'm about to
> > upload tons of tons of files... so i closed the eclipse and reopen it,
> > since then i cant deplot my application (its been several hours since
> > than)
>
> > hoe can i FIX this?
>
> > Here is the message:
>
> > Unable to update app: Error posting to URL:
>
> https://appengine.google.com/api/appversion/create?app_id=vedmack&ver...> 409 
> Conflict
> > Another transaction by user vedmack is already in progress for app:
> > vedmack, version: 1. That user can undo the transaction with "appcfg
> > rollback".
>
> > See the deployment console for more details
> > Unable to update app: Error posting to URL:
>
> https://appengine.google.com/api/appversion/create?app_id=vedmack&ver...> 409 
> Conflict
> > Another transaction by user vedmack is already in progress for app:
> > vedmack, version: 1. That user can undo the transaction with "appcfg
> > rollback".
>
> > --
> > You received this message because you are subscribed to the Google Groups
>
> "Google App Engine for Java" group.> To post to this group, send email to
>
> google-appengine-java@googlegroups.com.> To unsubscribe from this group, send 
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>
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>
> http://groups.google.com/group/google-appengine-java?hl=en.
>
>
>
>

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[appengine-java] Another transaction by user vedmack is already in progress for app: vedmack, version: 1. That user can undo the transaction with "appcfg rollback".

[Daniel]

Hi I tried to deploy to GAE and noticed that by mistake I'm about to
upload tons of tons of files... so i closed the eclipse and reopen it,
since then i cant deplot my application (its been several hours since
than)

hoe can i FIX this?

Here is the message:

Unable to update app: Error posting to URL:
https://appengine.google.com/api/appversion/create?app_id=vedmack&version=1&;
409 Conflict
Another transaction by user vedmack is already in progress for app:
vedmack, version: 1. That user can undo the transaction with "appcfg
rollback".


See the deployment console for more details
Unable to update app: Error posting to URL:
https://appengine.google.com/api/appversion/create?app_id=vedmack&version=1&;
409 Conflict
Another transaction by user vedmack is already in progress for app:
vedmack, version: 1. That user can undo the transaction with "appcfg
rollback".

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[appengine-java] Coding with Adobe Software

[Daniel Nieblas]

Hi my name is Daniel, I'm new to coding, so everything literally feels like 
a foreign language at this point, but I decided to start learning because 
I'm interested in developing a news app for smartphones and tablets.

Anyway i'm using the Java version of the GAE SDK and was wondering how 
exactly does coding incorporate commercial-based software. Im saving up to 
buy Adobe InDesign CS5.5 so that I can create the user interface for the 
app, but I'm not sure how exactly that works itself out in relation to 
coding the app itself. 

How do I code the application so that it functions with the interface?



thanks for helping out:)

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[appengine-java] Re: : SystemId Unknown; Line #57; Column #31; Failed calling setMethod method

[Daniel]

Hehe :)

That's a thread I opened almost a year ago (on a completely diff
issues) happens to be that in a log I posted back than the weird
stderr was appearing too,..




On May 14, 12:46 pm, Didier Durand  wrote:
> Hi,
>
> Look 
> athttp://groups.google.com/group/google-appengine-java/browse_thread/th...
>
> At the very bottom, you may have the answer to you question
>
> regards
>
> didier
>
> On May 14, 11:25 am, Daniel  wrote:
>
> > My log is full of this weird stderr message
>
> > [vedmack/1.350345457568997204].: SystemId Unknown; Line #57;
> > Column #31; Failed calling setMethod method
>
> > Its an Info message...
>
> > any ideas to what can cause this?
>
> > Thanks ahead!
>
> > Daniel,
>
>

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[appengine-java] : SystemId Unknown; Line #57; Column #31; Failed calling setMethod method

[Daniel]

My log is full of this weird stderr message

[vedmack/1.350345457568997204].: SystemId Unknown; Line #57;
Column #31; Failed calling setMethod method

Its an Info message...

any ideas to what can cause this?

Thanks ahead!


Daniel,

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[appengine-java] Why my "KeepSessionAlive" Servlet consumes diff' ammount of cpu???

[Daniel]

Hi

I got a servlet that is being executed from my web page every 5
minutes (to keep the session opened)

All this servlet does this:

System.err.println("KeepSessionAliveServlet doPost, "+new Date());


now when i look in the logs i can see that some time this "cost"

/servlets/KeepSessionAliveServlet 200 5202ms 7563cpu_ms 73api_cpu_ms

and some times

/servlets/TimeZoneDromClientServlet 200 165ms 190cpu_ms 73api_cpu_ms

sometimes it do dozens of "heavy calls" (5202ms 7563cpu_ms
73api_cpu_ms )

and sometimes dozens of "light calls" (165ms 190cpu_ms 73api_cpu_ms)

also when it does the heavy call it also prints some weird stderr :
: SystemId Unknown; Line #57; Column #31; Failed calling
setMethod method


before my own stderr  (System.err.println("KeepSessionAliveServlet
doPost, "+new Date());)

the "heavy " call of the servlet also says
"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."

why is that? my servlet being called every 5 minutes? why each time it
says that it loaded for the first time?

when it does an "light " serlvet call it does not says that it is
loaded for the first time...

I am the only one that logged into the app so only my open tab in the
FF calls the servlet

Help will be appreciated.

Daniel.

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[appengine-java] Re: Eclipse, RichFaces & Google App Engine - Tutorial - Step By Step - Draft 1.0

[Daniel]

nice!
tx!

On Apr 18, 12:53 am, Tomek  wrote:
> On Apr 17, 9:48 pm, Tomek  wrote:
>
> > Hi,
>
> > Maybe some of you will find the 
> > tutorialuseful.
> >  Any comments (fixes too) are very welcome.
>
> > All the best,
>
> > Tomek
>
> I am sorry, I didnt use and post to the groups before, so the link
> looked like broken. Once 
> again:http://void-pointers.blogspot.com/2011/04/eclipse-richfaces-google-ap...

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[appengine-java] Deploy credentials with 3.6 beta plugin

[Daniel Florey]

Since upgrading to the 3.6 beta plugin I am unable to deploy apps with ant.
It will always complain that my credentials have expired, so I can only 
upload from the IDE.
This is annoying since it will always trigger full gwt compile...

Any ideas?

Daniel

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[appengine-java] Re: How can I make the session to be held open as long as the user got its browser opened?

[Daniel]

I refer to the one that defined in web.xml


30


I want to keep it open as long as the browser is opened at my page...

On Apr 10, 2:10 pm, Didier Durand  wrote:
> Hi,
>
> You should clarify what you mean by an open session: do you mean the
> http one defined by the cookie, the security one after login, etc ?
>
> regards
>
> didier
>
> On Apr 10, 9:35 am, Max  wrote:
>
> > have you tried to use memcache or simply store session into datastore?

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[appengine-java] Re: How can I make the session to be held open as long as the user got its browser opened?

[Daniel]

any1?

On Apr 6, 1:18 pm, Daniel  wrote:
> Hi
>
> I need to keep the session opened as long as the user got its browser
> opened in my web app...
>
> Is there such a setting that i can enable for my web app?
>
> If not, Is there any suggester/recommend way to achieve it?
>
> Thanks ahead!
>
> Daniel.

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[appengine-java] How can I make the session to be held open as long as the user got its browser opened?

[Daniel]

Hi

I need to keep the session opened as long as the user got its browser
opened in my web app...

Is there such a setting that i can enable for my web app?

If not, Is there any suggester/recommend way to achieve it?

Thanks ahead!


Daniel.

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[appengine-java] Re: JSF 2 state saving on server

[Daniel]

just in case you haven't read the following:

Configuring JavaServer Faces 2.0 to run on the Google App Engine Using
Eclipse
https://sites.google.com/a/wildstartech.com/adventures-in-java/Java-Platform-Enterprise-Edition/JavaServer-Faces/sun-javaserver-faces-reference-implementation/configuring-jsf-20-to-run-on-the-google-appengine


Instructions on how to Use The Original Mojarra jar files (not
modified)
http://www.neverslair-blog.net/daniels-tips-and-tutorials/



On Apr 4, 11:29 pm, sgrueter  wrote:
> Hello
>
> Does somebody know, if JSF 2 state saving
> on server (javax.faces.STATE_SAVING_METHOD = server) works reliably on
> current App Engine?
>
> Will the state be replicated to other instances if multiple instances are
> running?
>
> Are there any special configurations necessary?
>
> Thanks for any information

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[appengine-java] Re: suggestions on template engine for GAE-java

[Daniel Florey]

You can check out 

http://code.google.com/p/jmte/


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[appengine-java] Re: Gettin white page when trying to log in - cause of exception.... even after deleting all _ah_SESSION Entities???

[Daniel]

Where can I do the flush of the MemCache?

On Mar 15, 11:18 am, Simon Knott  wrote:
> Have you tried flushing MemCache?  Sessions are serialized in there as well
> as the datastore.

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[appengine-java] Gettin white page when trying to log in - cause of exception.... even after deleting all _ah_SESSION Entities???

[Daniel]

I'm getting the next exception after I've added the private static
final long serialVersionUID to the class...

What else do i need to delete from my app in order to be able to log
in into the application

Regards,

Daniel.

2011-03-14 14:25:24.394

http://vedmack.appspot.com/
javax.servlet.ServletException: java.lang.RuntimeException:
java.io.InvalidClassException: dr.todo.beans.ScheduleControllerBean;
local class incompatible: stream classdesc serialVersionUID =
-1116670100735325123, local class serialVersionUID =
-6271321495824439527
at
com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:
240)
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
$RequestHandler.headerComplete(HttpConnection.java:923)
at
com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
135)
at
com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
261)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$2.handleRequest(RuntimePb.java:8440)
at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
454)
at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java:
572)
at com.google.tracing.TraceContext$TraceContextRunnable
$1.run(TraceContext.java:448)
at com.google.tracing.TraceContext.runInContext(TraceContext.java:
688)
at com.google.tracing.TraceContext
$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:
326)
at com.google.tracing.TraceContext
$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:
318)
at com.google.tracing.TraceContext
$TraceContextRunnable.run(TraceContext.java:446)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:
1110)
at java.util.concurrent.ThreadPoolExecutor
$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.RuntimeException: java.io.InvalidClassException:
dr.todo.beans.ScheduleControllerBean; local class incompatible: stream
classdesc serialVersionUID = -1116670100735325123, local class
serialVersionUID = -6271321495824439527
at
com.google.apphosting.runtime.jetty.SessionManager.deserialize(SessionManager.java:
419)
at
com.google.apphosting.runtime.jetty.SessionManager.loadSession(SessionManager.java:
315)
at
com.google.apphosting.runtime.jetty.SessionManager.getSession(SessionManager.java:
288)
at
org.mortbay.jetty.servlet.AbstractSessionManager.getHttpSession(AbstractSessionManager.java:
237)
at
org.mortbay.jetty.servlet.SessionHandler.setRequestedId(SessionHandler.java:
246)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
136)
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)
... 19 more
Caused by: java.io.InvalidClassException:
dr.todo.beans.ScheduleControllerBean; local class incompatible: stream
classdesc serialVersionUID = -1116670100735325123, local class
serialVersionUID = -6271321495824439527
at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:579)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:
1600)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:
1513)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1749)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:368)
at java.util.HashMap.readObject(HashMap.java:1047)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
43)
at java.lang.reflect.Method.invoke(Method.java:616)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:
991)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:
1865)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1770)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputS

Re: [appengine-java] Re: Custom location for local_db.bin?

[Daniel Kvasnička jr .]

Yeah, I've been looking at extending the netbeans build files. That
would probably work. But the link m seleron suggested looks promising
-- it could be the cleanest way to do that IMO.
Will try it and let you guys know.

Dan

On Mon, Jan 17, 2011 at 08:11, andrew  wrote:
> I added steps to my build to copy it.
>
> If you want an evolving datastore, copy it out before clean. If you
> have fixed contents you want, then copy out manually once when in the
> state you want.
>
> After clean, copy it back in to WEB-INF etc
>
> I use eclipse, but netbeans builds I have seen provide pre and post
> target hooks in build_implemented.XML that you can use in build.XML to
> customize the build without touching the netbesns generated build file
> (build_implemented.XML). That was for J2ME, not sure how build looks
> for GAE in NetBeans.
>
> --
> You received this message because you are subscribed to the Google Groups 
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>
>



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[appengine-java] Custom location for local_db.bin?

[Daniel Kvasnicka jr.]

Hey,

is it possible to customize the location of local_db.bin? I need it to be 
somewhere outside the application, so that it doesn't get harmed.
I'm using NetBeans to develop apps and Clean & Build always destroys my 
data.
There must be some option for this, e.g. in appengine-web.xml, right?

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[appengine-java] Re: Nice Online XSLT Transformer Hosted in GAE

[Daniel]

looks cool

On Jan 2, 10:23 pm, XSLT Master  wrote:
> Useful for tests when developing XSLT:
>
> http://xslttest.appspot.com/
>
> Developed with Java, GWT and Google Plugin for Eclipse. Hosted in GAE.
>
> Cheers

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[appengine-java] Re: Cloud2db for Cassandra and MongoDb

[Daniel Florey]

Hi,
this sounds very interesting.
Will the data stored in the db be human-readable in the datastore with
datastore viewer or will it just store a bunch of blobs?

Daniel

On Dec 28, 9:03 pm, Sandeep Sathaye  wrote:
> Hi Everyone,
>
> Cloud2db <http://www.cloud2db.com/> is pleased to announce the support for
> Cassandra and mongoDB cloud database platforms in addition to Google
> Bigtable platform which it already supports. With this new release you will
> be able to transparently choose between Google Bigtable, Cassandra and
> MongoDB as your cloud database platform.
>
> Please download the Cloud2db software from the following link.
>
> Download <http://cloud2db-server.appspot.com/website/download.html>(Google
> Bigtable, Cassandra, MongoDB)
>
> Cloud2db provides a standards-based abstraction layer over cloud databases.
> This product provides you with performance and scalability of cloud platform
> along with structure, standards and interoperability of RDBMS, SQL and JDBC.
>
> With Cloud2db, you will be able to manage your data on cloud platforms by
> using established concepts of RDBMS, SQL and JDBC, and thereby preserving
> your existing investments in tools, technologies, frameworks and skills.
>
> Here are Cloud2db features:
>
>    - Manage data on Google Bigtable, Cassandra and MongoDB using familiar
>    concepts of RDBMD, SQL
>       - Referential integrity (Primary Keys, Foreign Keys)
>       - Role Based Security
>       - Joins (Inner Join, Left Outer Join, Theta Join, Cross Join)
>       - Subqueries (Exists, Not Exists, In)
>       - DDL & DML
>       - Transactions (for the datastores supporting transactions)
>       - ANSI SQL stored functions
>       - Views
>       - BLOB and CLOB support (for the datastores supporting BLOBs)
>
>    - Use any JDBC compliant tools and frameworks in the market to interact
>    with the Google Datastore. For example.
>       - Squirrel SQL (database management)
>       - Power Architect (data modeling)
>       - Jasper Reports (reporting)
>       - Hibernate (Object To Relational mapping)
>       - All JDBC compliant tools
>
>    - Port exiting RDBMS instances to cloud databases
>
> Please visit our websitehttp://www.cloud2db.comand try out the free trial
> version. Please visit google group
> Cloud2db<http://groups.google.com/group/cloud2db> to
> share your feedback and thoughts.
>
> Sincerely,
>
> Sandeep Sathaye
> Founder and Chief Architect
> Cloud2db

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[appengine-java] Primefaces works on Development but after Deployment seems like all css are not recognized? (In FireFox only)

[Daniel]

Hi I'm developing using PrimeFaces(JSF) library... and all works just
fine on development (in IE 8 and FireFox 3.6)

But after the deployment to the GAE platform it stops to work in
FireFox, it looks like no css are recognized... and the website looks
poor...

Any ideas how can i solve this issue?


Regards


Daniel.

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[appengine-java] New book: Google App Engine Java and GWT Application Development

[Daniel Guermeur]

hi,

Some of you may be interested in a book I co-authored that has just
been published:
"Google App Engine Java and GWT Application Development" by Amy Unruh
and Daniel Guermeur, from Packt.

The book describes many of the techniques and approaches used to
develop GAE+GWT applications, and includes an app developed
throughout  the book as a running example. It has a particular focus
on some of the technologies useful for building scalable social-media-
oriented applications, including: MVP and UiBinder, using the Channel
API for push, using Facebook and Twitter OAuth for authorization, JDO,
the Task Queue, transactions and transactional tasks, Memcache, and
XMPP.


This is the Packt Publishing link:
- http://link.packtpub.com/5XWJBI

Book blog w/ table of contents:
- http://theconnectr.blogspot.com/

Enjoy.

-- Daniel

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[appengine-java] Re: Problem with JSF 2.0

[Daniel]

Try adding  implements Serializable to the problematic bean
(br.com.controlecartao.web.managed.EmpresaMBean)

and add the private static final long serialVersionUID .. variable
as eclipse suggests

also make sure you got this entry in appengine-web.xml : true


this should solve the issue


Regards


Daniel

On Nov 5, 9:12 pm, vaninh0  wrote:
> Hello,
>
> I have an application running on EclipsePlugin (JSF2.0), but when I
> deploy it got the following error:
> (it's started when I used the templates)
>
> Anyone can help me?
>
> java.lang.RuntimeException: java.io.NotSerializableException:
> br.com.controlecartao.web.managed.EmpresaMBean
>         at
> com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
> 387)
>         at
> com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(SessionManager.java:
> 364)
>         at com.google.apphosting.runtime.jetty.SessionManager
> $AppEngineSession.save(SessionManager.java:164)
>         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
> $RequestHandler.headerComplete(HttpConnection.java:923)
>         at
> com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
> 76)
>         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
>         at
> com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
> 135)
>         at
> com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
> 261)
>         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
> $6.handleBlockingRequest(RuntimePb.java:8486)
>         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
> $6.handleBlockingRequest(RuntimePb.java:8484)
>         at
> com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:
> 24)
>         at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
> 418)
>         at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java:
> 572)
>         at com.google.tracing.TraceContext$TraceContextRunnable
> $1.run(TraceContext.java:448)
>         at com.google.tracing.TraceContext.runInContext(TraceContext.java:
> 688)
>         at com.google.tracing.TraceContext
> $AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:
> 326)
>         at com.google.tracing.TraceContext
> $AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:
> 318)
>         at com.google.tracing.TraceContext
> $TraceContextRunnable.run(TraceContext.java:446)
>         at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:
> 1110)
>         at java.util.concurrent.ThreadPoolExecutor
> $Worker.run(ThreadPoolExecutor.java:603)
>         at java.lang.Thread.run(Thread.java:636)
> Caused by: java.io.NotSerializableException:
> br.com.controlecartao.web.managed.EmpresaMBean
>         at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:
> 1173)
>         at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:
> 343)
>         at java.util.HashMap.writeObject(HashMap.java:1018)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> 57)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
> 43)
>     

[appengine-java] Re: Security and Authentication - in web.xml annoying error

[Daniel]

Thx! Solved the issue...

On Oct 31, 12:37 am, Shawn Brown  wrote:
> > how can i fix this annoying error ?
>
> "web-resource-name}' is expected."
> see the top link in the following search and just add a web-resource-name
>
> http://docs.sun.com/app/docs/doc/819-3669/bncbk?a=view
>
> Shawn

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[appengine-java] Security and Authentication - in web.xml annoying error

[Daniel]

Hi i got the following setting in my web.xml:



/*


*

  

in eclipse it shows me a red X as if it was an error (the project
works fine and even can be deployed) but it asks me all the time if im
sure i want to deploy with the error)

HERE IS THE ERROR:

cvc-complex-type.2.4.a: Invalid content was found starting with
element 'url-pattern'. One of '{"http://java.sun.com/xml/ns/
javaee":web-resource-name}' is expected.


And this is how the web.xml begins:


http://java.sun.com/xml/ns/javaee";
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";>


how can i fix this annoying error ?

Tx ahead

Daniel

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[appengine-java] Re: JSF 2.0 MyFaces problem with Ajax and Command Button

[Daniel]

1) You sure that page2.xhtml is exists?
2) have you tried 

does it work for you?

3) I tried your code on latest mojarra implementation.. and it works
fine...
If i were you, i would try to build a dynamic project in eclipse
and use the latest myfaces jars instead of which you use now... and if
it will work... than blame the jars you use (maybe they out dated),
and you can always switch to the mojarraimplementation

Regards.

Daniel

On Oct 27, 11:40 am, Daniel  wrote:
> First of all what version of mojarra you use?
>
> In case you using the modified jar that was done by Josh for Google
> App Engine SDK 1.2.6 you should using the original mojarra jars.
>
> I wrote a short tutorial on how one can use the original mojarra jars
>
> You can find it here:
>
> [url]http://www.neverslair-blog.net/daniels-tips-and-tutorials/[/url]
>
> Daniel.
>
> On Oct 26, 11:06 am, "powell...@gmail.com" 
> wrote:
>
> > I cannot get Ajax to allow navigation to another page when a
> > h:commandButton is clicked. I use the classic command given in texts
> > as shown below but Ajax will always display the current page. In the
> > example below, I want to transition to the page2.xhtml page when I
> > click but I only get the current page redisplayed. I tried giving ajax
> > attributes of execute="@form" and even render="@form" without success.
> > Is this a known bug.
>
> > 
> > ...
> > 
> >    
> > 
> > 
>
> > Dave

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[appengine-java] Re: JSF 2.0 MyFaces problem with Ajax and Command Button

[Daniel]

First of all what version of mojarra you use?

In case you using the modified jar that was done by Josh for Google
App Engine SDK 1.2.6 you should using the original mojarra jars.

I wrote a short tutorial on how one can use the original mojarra jars

You can find it here:

[url]http://www.neverslair-blog.net/daniels-tips-and-tutorials/[/url]


Daniel.

On Oct 26, 11:06 am, "powell...@gmail.com" 
wrote:
> I cannot get Ajax to allow navigation to another page when a
> h:commandButton is clicked. I use the classic command given in texts
> as shown below but Ajax will always display the current page. In the
> example below, I want to transition to the page2.xhtml page when I
> click but I only get the current page redisplayed. I tried giving ajax
> attributes of execute="@form" and even render="@form" without success.
> Is this a known bug.
>
> 
> ...
> 
>    
> 
> 
>
> Dave

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[appengine-java] Re: Testing with JDO

[Daniel Blasco]

Thank you Didier.

This is my BaseTest.java and works perfect now:

package ...;

import static org.junit.Assert.assertEquals;

import java.util.Date;
import java.util.List;

import javax.jdo.PersistenceManager;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.declaraciones.PMF;
import com.declaraciones.shared.Declaracion.EstadoDeclaracion;
import com.declaraciones.shared.Movimiento;
import
com.google.appengine.tools.development.testing.LocalDatastoreServiceTestConfig;
import
com.google.appengine.tools.development.testing.LocalServiceTestHelper;

public class BaseTest {
private final LocalServiceTestHelper dsHelper = new
LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());
private final PersistenceManager pm = PMF.getPersistenceManager();

@Before
public void setUp() {
System.out.println("Entering @Before for BaseTest");
dsHelper.setUp();
}

@After
public void tearDown() {
System.out.println("Entering @After for BaseTest");
this.dsHelper.tearDown();
}

// run this test twice to prove we're not leaking any state across
tests
@SuppressWarnings("unchecked")
private void doTest() {
String query = "select from " + Movimiento.class.getName();
assertEquals(0, ((List)
pm.newQuery(query).execute()).size());
Movimiento m1 = new Movimiento();
pm.makePersistent(m1);
assertEquals(1, ((List)
pm.newQuery(query).execute()).size());
Movimiento m2 = new Movimiento();
pm.makePersistent(m2);
assertEquals(2, ((List)
pm.newQuery(query).execute()).size());
}

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

@Test
public void testInsert2() {
doTest();
}

}

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[appengine-java] Testing with JDO

[Daniel Blasco]

Hi, I'm using GAE 1.3.5 and JUnit 4.

I want to test a GAE App which uses JDO. Firstly I read the "HowTo" in
the GAE official site:
http://code.google.com/appengine/docs/java/tools/localunittesting.html
But there is no clues.

In this page http://blog.appenginefan.com/2009/05/jdo-and-unit-tests.html
I found some instructions but, obselete I guess.

Some instructions please?

Thanks!

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[appengine-java] JSF 2 (pure mojarra jars) on GAE : short tutorial on how to use...

[Daniel]

Hi I recently figured out how to use the original latest mojarra jars
in my project...

It solved many weird errors i was bumping into once in a while... so I
thought i would share it with other JSF 2 users...


Here the link to the tutorial...

http://www.neverslair-blog.net/daniels-tips-and-tutorials/

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[appengine-java] Primefaces 2.2 (Based on JSF 2 )- does any one manged to get it working properly ?

[Daniel]

Hi I'm trying to get primefaces-2.2 working on GAE , but already on
the very simple attempt  - http://groups.google.com/group/google-appengine-java?hl=en.

[appengine-java] Re: JSF2

[Daniel]

seems to be solved by removing primefaces-2.2.M1.jar

weird???

but works now...


On Sep 24, 7:56 pm, Daniel  wrote:
> I tried this too... but its the same.. does not work :/
>
> On Sep 24, 6:15 pm, "Chris (Google Employee)" 
> wrote:
>
> > Hi Daniel,
>
> > For a possible workaround, have you tried manually coding the
> > JavaScript for the Ajax request call?
>
> > For example, instead of:
> > 
> >   
> > 
>
> > ... manually coding the JavaScript for the Ajax request call would be:
>
> > 
>
> > This was taken 
> > from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
>
> > Also, is this the only JSF2 tag that you've encountered that does't
> > appear to be working in App Engine?
> > -Chris
>
> > On Sep 24, 8:31 am, Daniel  wrote:
>
> > > I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
> > > no ajax for me :/
>
> > > On Sep 23, 9:22 pm, Daniel  wrote:
>
> > > > Hi
> > > > this does not help... same behavior...
>
> > > > i got my jsf jars from here 
> > > > :http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
> > > > and followed the setting of web.xml from 
> > > > herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
>
> > > > maybe you used different sources? if you do please let me know, also
> > > > maybe you can post your web.xml ? might be i missed something...
>
> > > > any other ideas are welcomed.
>
> > > > Thanks ahead
>
> > > > Daniel
>
> > > > On Sep 23, 3:24 pm, Jaziel Leandro  wrote:
>
> > > > > I have the same error few times ago.
> > > > > Try this, make you Bean implements Serializable.
>
> > > > > 2010/9/23 Daniel 
>
> > > > > > I'm want to use the  > > > > > without any luck
>
> > > > > > I tried some very simple examples taken from
>
> > > > > >http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
>
> > > > > > all of them works perfectly on local Tomcat (not GAE)
>
> > > > > > But when i try the same on GAE, nothing works, im not getting any
> > > > > > errors.. its just do nothing...
> > > > > > Here the simplest example
>
> > > > > > On each char type I'm supposed to sea the same char typed beneath 
> > > > > > and
> > > > > > beneath it a counter of chars (text length) - again.. this works
> > > > > > perfectly on tomcat server... (not GAE)
>
> > > > > > Any ideas what am i missing?
>
> > > > > > 
> > > > > >   
> > > > > >      
> > > > > >          > > > > > listener="#{bean.countListener}"/>
> > > > > >      
> > > > > >      
> > > > > >      
> > > > > >   
> > > > > > 
>
> > > > > > java code:
> > > > > > package general;
>
> > > > > > import javax.faces.bean.ManagedBean;
> > > > > > import javax.faces.event.AjaxBehaviorEvent;
>
> > > > > > @ManagedBean(name = "bean")
> > > > > > public class Bean {
> > > > > >   private String text; // getter and setter
> > > > > >   private Integer count;
>
> > > > > >    public void countListener(AjaxBehaviorEvent event) {
> > > > > >           count = text.length();
> > > > > >        }
>
> > > > > >        public String getText() {
> > > > > >                return text;
> > > > > >        }
>
> > > > > >        public void setText(String text) {
> > > > > >                this.text = text;
> > > > > >        }
>
> > > > > >        public Integer getCount() {
> > > > > >                return count;
> > > > > >        }
>
> > > > > >        public void setCount(Integer count) {
> > > > > >                this.count = count;
> > > > > >        }
>
> > > > > > }
>
> > > > > > Thanks ahead.
>
> > > > > > Daniel
>
> > > > > > --
> > > > > > You received this message because you are subscribed to the Google 
> > > > > > Groups
> > > > > > "Google App Engine for Java" group.
> > > > > > To post to this group, send email to
> > > > > > google-appengine-j...@googlegroups.com.
> > > > > > To unsubscribe from this group, send email to
> > > > > > google-appengine-java+unsubscr...@googlegroups.com > > > > >  unsubscr...@googlegroups.com>
> > > > > > .
> > > > > > For more options, visit this group at
> > > > > >http://groups.google.com/group/google-appengine-java?hl=en.

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[appengine-java] Re: JSF2

[Daniel]

I tried this too... but its the same.. does not work :/

On Sep 24, 6:15 pm, "Chris (Google Employee)" 
wrote:
> Hi Daniel,
>
> For a possible workaround, have you tried manually coding the
> JavaScript for the Ajax request call?
>
> For example, instead of:
> 
>   
> 
>
> ... manually coding the JavaScript for the Ajax request call would be:
>
> 
>
> This was taken 
> from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
>
> Also, is this the only JSF2 tag that you've encountered that does't
> appear to be working in App Engine?
> -Chris
>
> On Sep 24, 8:31 am, Daniel  wrote:
>
> > I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
> > no ajax for me :/
>
> > On Sep 23, 9:22 pm, Daniel  wrote:
>
> > > Hi
> > > this does not help... same behavior...
>
> > > i got my jsf jars from here 
> > > :http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
> > > and followed the setting of web.xml from 
> > > herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
>
> > > maybe you used different sources? if you do please let me know, also
> > > maybe you can post your web.xml ? might be i missed something...
>
> > > any other ideas are welcomed.
>
> > > Thanks ahead
>
> > > Daniel
>
> > > On Sep 23, 3:24 pm, Jaziel Leandro  wrote:
>
> > > > I have the same error few times ago.
> > > > Try this, make you Bean implements Serializable.
>
> > > > 2010/9/23 Daniel 
>
> > > > > I'm want to use the  > > > > without any luck
>
> > > > > I tried some very simple examples taken from
>
> > > > >http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
>
> > > > > all of them works perfectly on local Tomcat (not GAE)
>
> > > > > But when i try the same on GAE, nothing works, im not getting any
> > > > > errors.. its just do nothing...
> > > > > Here the simplest example
>
> > > > > On each char type I'm supposed to sea the same char typed beneath and
> > > > > beneath it a counter of chars (text length) - again.. this works
> > > > > perfectly on tomcat server... (not GAE)
>
> > > > > Any ideas what am i missing?
>
> > > > > 
> > > > >   
> > > > >      
> > > > >          > > > > listener="#{bean.countListener}"/>
> > > > >      
> > > > >      
> > > > >      
> > > > >   
> > > > > 
>
> > > > > java code:
> > > > > package general;
>
> > > > > import javax.faces.bean.ManagedBean;
> > > > > import javax.faces.event.AjaxBehaviorEvent;
>
> > > > > @ManagedBean(name = "bean")
> > > > > public class Bean {
> > > > >   private String text; // getter and setter
> > > > >   private Integer count;
>
> > > > >    public void countListener(AjaxBehaviorEvent event) {
> > > > >           count = text.length();
> > > > >        }
>
> > > > >        public String getText() {
> > > > >                return text;
> > > > >        }
>
> > > > >        public void setText(String text) {
> > > > >                this.text = text;
> > > > >        }
>
> > > > >        public Integer getCount() {
> > > > >                return count;
> > > > >        }
>
> > > > >        public void setCount(Integer count) {
> > > > >                this.count = count;
> > > > >        }
>
> > > > > }
>
> > > > > Thanks ahead.
>
> > > > > Daniel
>
> > > > > --
> > > > > You received this message because you are subscribed to the Google 
> > > > > Groups
> > > > > "Google App Engine for Java" group.
> > > > > To post to this group, send email to
> > > > > google-appengine-j...@googlegroups.com.
> > > > > To unsubscribe from this group, send email to
> > > > > google-appengine-java+unsubscr...@googlegroups.com > > > >  unsubscr...@googlegroups.com>
> > > > > .
> > > > > For more options, visit this group at
> > > > >http://groups.google.com/group/google-appengine-java?hl=en.

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[appengine-java] Re: JSF2

[Daniel]

I tried this too... but its the same.. does not work :/

On Sep 24, 6:15 pm, "Chris (Google Employee)" 
wrote:
> Hi Daniel,
>
> For a possible workaround, have you tried manually coding the
> JavaScript for the Ajax request call?
>
> For example, instead of:
> 
>   
> 
>
> ... manually coding the JavaScript for the Ajax request call would be:
>
> 
>
> This was taken 
> from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
>
> Also, is this the only JSF2 tag that you've encountered that does't
> appear to be working in App Engine?
> -Chris
>
> On Sep 24, 8:31 am, Daniel  wrote:
>
> > I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
> > no ajax for me :/
>
> > On Sep 23, 9:22 pm, Daniel  wrote:
>
> > > Hi
> > > this does not help... same behavior...
>
> > > i got my jsf jars from here 
> > > :http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
> > > and followed the setting of web.xml from 
> > > herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
>
> > > maybe you used different sources? if you do please let me know, also
> > > maybe you can post your web.xml ? might be i missed something...
>
> > > any other ideas are welcomed.
>
> > > Thanks ahead
>
> > > Daniel
>
> > > On Sep 23, 3:24 pm, Jaziel Leandro  wrote:
>
> > > > I have the same error few times ago.
> > > > Try this, make you Bean implements Serializable.
>
> > > > 2010/9/23 Daniel 
>
> > > > > I'm want to use the  > > > > without any luck
>
> > > > > I tried some very simple examples taken from
>
> > > > >http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
>
> > > > > all of them works perfectly on local Tomcat (not GAE)
>
> > > > > But when i try the same on GAE, nothing works, im not getting any
> > > > > errors.. its just do nothing...
> > > > > Here the simplest example
>
> > > > > On each char type I'm supposed to sea the same char typed beneath and
> > > > > beneath it a counter of chars (text length) - again.. this works
> > > > > perfectly on tomcat server... (not GAE)
>
> > > > > Any ideas what am i missing?
>
> > > > > 
> > > > >   
> > > > >      
> > > > >          > > > > listener="#{bean.countListener}"/>
> > > > >      
> > > > >      
> > > > >      
> > > > >   
> > > > > 
>
> > > > > java code:
> > > > > package general;
>
> > > > > import javax.faces.bean.ManagedBean;
> > > > > import javax.faces.event.AjaxBehaviorEvent;
>
> > > > > @ManagedBean(name = "bean")
> > > > > public class Bean {
> > > > >   private String text; // getter and setter
> > > > >   private Integer count;
>
> > > > >    public void countListener(AjaxBehaviorEvent event) {
> > > > >           count = text.length();
> > > > >        }
>
> > > > >        public String getText() {
> > > > >                return text;
> > > > >        }
>
> > > > >        public void setText(String text) {
> > > > >                this.text = text;
> > > > >        }
>
> > > > >        public Integer getCount() {
> > > > >                return count;
> > > > >        }
>
> > > > >        public void setCount(Integer count) {
> > > > >                this.count = count;
> > > > >        }
>
> > > > > }
>
> > > > > Thanks ahead.
>
> > > > > Daniel
>
> > > > > --
> > > > > You received this message because you are subscribed to the Google 
> > > > > Groups
> > > > > "Google App Engine for Java" group.
> > > > > To post to this group, send email to
> > > > > google-appengine-j...@googlegroups.com.
> > > > > To unsubscribe from this group, send email to
> > > > > google-appengine-java+unsubscr...@googlegroups.com > > > >  unsubscr...@googlegroups.com>
> > > > > .
> > > > > For more options, visit this group at
> > > > >http://groups.google.com/group/google-appengine-java?hl=en.

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[appengine-java] Re: JSF2

[Daniel]

I tried this too... but its the same.. does not work :/

On Sep 24, 6:15 pm, "Chris (Google Employee)" 
wrote:
> Hi Daniel,
>
> For a possible workaround, have you tried manually coding the
> JavaScript for the Ajax request call?
>
> For example, instead of:
> 
>   
> 
>
> ... manually coding the JavaScript for the Ajax request call would be:
>
> 
>
> This was taken 
> from:http://andyschwartz.wordpress.com/2009/07/31/whats-new-in-jsf-2/#ajax...
>
> Also, is this the only JSF2 tag that you've encountered that does't
> appear to be working in App Engine?
> -Chris
>
> On Sep 24, 8:31 am, Daniel  wrote:
>
> > I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
> > no ajax for me :/
>
> > On Sep 23, 9:22 pm, Daniel  wrote:
>
> > > Hi
> > > this does not help... same behavior...
>
> > > i got my jsf jars from here 
> > > :http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
> > > and followed the setting of web.xml from 
> > > herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
>
> > > maybe you used different sources? if you do please let me know, also
> > > maybe you can post your web.xml ? might be i missed something...
>
> > > any other ideas are welcomed.
>
> > > Thanks ahead
>
> > > Daniel
>
> > > On Sep 23, 3:24 pm, Jaziel Leandro  wrote:
>
> > > > I have the same error few times ago.
> > > > Try this, make you Bean implements Serializable.
>
> > > > 2010/9/23 Daniel 
>
> > > > > I'm want to use the  > > > > without any luck
>
> > > > > I tried some very simple examples taken from
>
> > > > >http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
>
> > > > > all of them works perfectly on local Tomcat (not GAE)
>
> > > > > But when i try the same on GAE, nothing works, im not getting any
> > > > > errors.. its just do nothing...
> > > > > Here the simplest example
>
> > > > > On each char type I'm supposed to sea the same char typed beneath and
> > > > > beneath it a counter of chars (text length) - again.. this works
> > > > > perfectly on tomcat server... (not GAE)
>
> > > > > Any ideas what am i missing?
>
> > > > > 
> > > > >   
> > > > >      
> > > > >          > > > > listener="#{bean.countListener}"/>
> > > > >      
> > > > >      
> > > > >      
> > > > >   
> > > > > 
>
> > > > > java code:
> > > > > package general;
>
> > > > > import javax.faces.bean.ManagedBean;
> > > > > import javax.faces.event.AjaxBehaviorEvent;
>
> > > > > @ManagedBean(name = "bean")
> > > > > public class Bean {
> > > > >   private String text; // getter and setter
> > > > >   private Integer count;
>
> > > > >    public void countListener(AjaxBehaviorEvent event) {
> > > > >           count = text.length();
> > > > >        }
>
> > > > >        public String getText() {
> > > > >                return text;
> > > > >        }
>
> > > > >        public void setText(String text) {
> > > > >                this.text = text;
> > > > >        }
>
> > > > >        public Integer getCount() {
> > > > >                return count;
> > > > >        }
>
> > > > >        public void setCount(Integer count) {
> > > > >                this.count = count;
> > > > >        }
>
> > > > > }
>
> > > > > Thanks ahead.
>
> > > > > Daniel
>
> > > > > --
> > > > > You received this message because you are subscribed to the Google 
> > > > > Groups
> > > > > "Google App Engine for Java" group.
> > > > > To post to this group, send email to
> > > > > google-appengine-j...@googlegroups.com.
> > > > > To unsubscribe from this group, send email to
> > > > > google-appengine-java+unsubscr...@googlegroups.com > > > >  unsubscr...@googlegroups.com>
> > > > > .
> > > > > For more options, visit this group at
> > > > >http://groups.google.com/group/google-appengine-java?hl=en.

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[appengine-java] Re: JSF2

[Daniel]

I tried also mojarra-2.0.3-FCS-binary.zip but without any luck also..
no ajax for me :/

On Sep 23, 9:22 pm, Daniel  wrote:
> Hi
> this does not help... same behavior...
>
> i got my jsf jars from here 
> :http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-goog...
> and followed the setting of web.xml from 
> herehttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...
>
> maybe you used different sources? if you do please let me know, also
> maybe you can post your web.xml ? might be i missed something...
>
> any other ideas are welcomed.
>
> Thanks ahead
>
> Daniel
>
> On Sep 23, 3:24 pm, Jaziel Leandro  wrote:
>
> > I have the same error few times ago.
> > Try this, make you Bean implements Serializable.
>
> > 2010/9/23 Daniel 
>
> > > I'm want to use the  > > without any luck
>
> > > I tried some very simple examples taken from
>
> > >http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
>
> > > all of them works perfectly on local Tomcat (not GAE)
>
> > > But when i try the same on GAE, nothing works, im not getting any
> > > errors.. its just do nothing...
> > > Here the simplest example
>
> > > On each char type I'm supposed to sea the same char typed beneath and
> > > beneath it a counter of chars (text length) - again.. this works
> > > perfectly on tomcat server... (not GAE)
>
> > > Any ideas what am i missing?
>
> > > 
> > >   
> > >      
> > >          > > listener="#{bean.countListener}"/>
> > >      
> > >      
> > >      
> > >   
> > > 
>
> > > java code:
> > > package general;
>
> > > import javax.faces.bean.ManagedBean;
> > > import javax.faces.event.AjaxBehaviorEvent;
>
> > > @ManagedBean(name = "bean")
> > > public class Bean {
> > >   private String text; // getter and setter
> > >   private Integer count;
>
> > >    public void countListener(AjaxBehaviorEvent event) {
> > >           count = text.length();
> > >        }
>
> > >        public String getText() {
> > >                return text;
> > >        }
>
> > >        public void setText(String text) {
> > >                this.text = text;
> > >        }
>
> > >        public Integer getCount() {
> > >                return count;
> > >        }
>
> > >        public void setCount(Integer count) {
> > >                this.count = count;
> > >        }
>
> > > }
>
> > > Thanks ahead.
>
> > > Daniel
>
> > > --
> > > You received this message because you are subscribed to the Google Groups
> > > "Google App Engine for Java" group.
> > > To post to this group, send email to
> > > google-appengine-j...@googlegroups.com.
> > > To unsubscribe from this group, send email to
> > > google-appengine-java+unsubscr...@googlegroups.com
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/google-appengine-java?hl=en.

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[appengine-java] Re: JSF2

[Daniel]

Hi
this does not help... same behavior...

i got my jsf jars from here :
http://javadocs.wordpress.com/2009/10/17/mojarra-jsf-2-0-rc2-and-google-app-engine-sdk-1-2-6/
and followed the setting of web.xml from here
https://sites.google.com/a/wildstartech.com/adventures-in-java/Java-Platform-Enterprise-Edition/JavaServer-Faces/sun-javaserver-faces-reference-implementation/configuring-jsf-20-to-run-on-the-google-appengine

maybe you used different sources? if you do please let me know, also
maybe you can post your web.xml ? might be i missed something...

any other ideas are welcomed.

Thanks ahead

Daniel

On Sep 23, 3:24 pm, Jaziel Leandro  wrote:
> I have the same error few times ago.
> Try this, make you Bean implements Serializable.
>
> 2010/9/23 Daniel 
>
> > I'm want to use the  > without any luck
>
> > I tried some very simple examples taken from
>
> >http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-faj...
>
> > all of them works perfectly on local Tomcat (not GAE)
>
> > But when i try the same on GAE, nothing works, im not getting any
> > errors.. its just do nothing...
> > Here the simplest example
>
> > On each char type I'm supposed to sea the same char typed beneath and
> > beneath it a counter of chars (text length) - again.. this works
> > perfectly on tomcat server... (not GAE)
>
> > Any ideas what am i missing?
>
> > 
> >   
> >      
> >          > listener="#{bean.countListener}"/>
> >      
> >      
> >      
> >   
> > 
>
> > java code:
> > package general;
>
> > import javax.faces.bean.ManagedBean;
> > import javax.faces.event.AjaxBehaviorEvent;
>
> > @ManagedBean(name = "bean")
> > public class Bean {
> >   private String text; // getter and setter
> >   private Integer count;
>
> >    public void countListener(AjaxBehaviorEvent event) {
> >           count = text.length();
> >        }
>
> >        public String getText() {
> >                return text;
> >        }
>
> >        public void setText(String text) {
> >                this.text = text;
> >        }
>
> >        public Integer getCount() {
> >                return count;
> >        }
>
> >        public void setCount(Integer count) {
> >                this.count = count;
> >        }
>
> > }
>
> > Thanks ahead.
>
> > Daniel
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Google App Engine for Java" group.
> > To post to this group, send email to
> > google-appengine-j...@googlegroups.com.
> > To unsubscribe from this group, send email to
> > google-appengine-java+unsubscr...@googlegroups.com
> > .
> > For more options, visit this group at
> >http://groups.google.com/group/google-appengine-java?hl=en.

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[appengine-java] JSF2

[Daniel]

I'm want to use the http://mkblog.exadel.com/2010/04/learning-jsf-2-ajax-in-jsf-using-fajax-tag/

all of them works perfectly on local Tomcat (not GAE)

But when i try the same on GAE, nothing works, im not getting any
errors.. its just do nothing...
Here the simplest example

On each char type I'm supposed to sea the same char typed beneath and
beneath it a counter of chars (text length) - again.. this works
perfectly on tomcat server... (not GAE)


Any ideas what am i missing?


   
  
 
  
  
  
   


java code:
package general;

import javax.faces.bean.ManagedBean;
import javax.faces.event.AjaxBehaviorEvent;

@ManagedBean(name = "bean")
public class Bean {
   private String text; // getter and setter
   private Integer count;


public void countListener(AjaxBehaviorEvent event) {
   count = text.length();
}

public String getText() {
return text;
}

public void setText(String text) {
this.text = text;
}

public Integer getCount() {
return count;
}

public void setCount(Integer count) {
this.count = count;
}

}


Thanks ahead.

Daniel

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[appengine-java] "gae.encoded-pk" not working on MySQL

[Daniel Ruiz Giménez]

Hi all,

I'm experiencing some problems using "gae.encoded-pk" on MySQL.

Reading the documentation (http://code.google.com/intl/en/appengine/
docs/java/datastore/creatinggettinganddeletingdata.html) I found that:

"Encoded string keys allow you to write your application in a portable
manner..."

but I can't find any information on how to achieve this. Consider this
sample code from the docs:

@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
@Extension(vendorName="datanucleus", key="gae.encoded-pk",
value="true")
private String encodedKey;

This will work on appengine, but if used on an alternative stack of
DataNucleus + MySQL, then it won't work (the automatic schema tool
ignored the extension, and attempts to create a varchar column with an
AUTO_INCREMENT attribute, which makes no sense).

Does anybody know how to achieve the desired behaviour?

Many thanks in advance!!

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[appengine-java] Channel API still not live...

[Daniel Guermeur]

Hello there,

Google announced Channel API for 1.3.6 but it is still not live in
1.3.7. It runs in dev mode but when deployed I get a 'feature not
implemented' exception.

Does anyone has any updated on this? Google team?

Thank you.
Daniel

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[appengine-java] App Engine Channel API release date on production?

[Daniel Guermeur]

Hello there,

I thought Channel API would be enabled with v1.3.6. We are now at
v1.3.7, and I get an error when trying it:

Uncaught exception from servlet
com.google.apphosting.api.ApiProxy$FeatureNotEnabledException: The
channel service is not enabled.

Could anyone share some info regarding its release?

Daniel

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[appengine-java] Qestion regarding getObjectById

[Daniel]

I've noticed that i can perform query using the getObjectById while
using the ID or the Key

pm.getObjectById(myClass.class, idString);
pm.getObjectById(myClass.class, keyString);

idString and keyString are different string values,

is it possible because of the fact that the id attribute is defined:

@PrimaryKey
@Persistent
private String id;

if i define the id Primary key, this allows me to use the
getObjectById with different values (with id value or with key value
of the same object to get this same object)

which way is better ? Using the id value or the key value?

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[appengine-java] Re: Facebook API Integration

[Luis Daniel Mesa Velasquez]

I am doing it with a servletfilter to do the OAUTH with the graph
api... the servlet fliter does authentication and in my servlets i
call the static methods of the filter passing the tokens...

On Aug 20, 5:30 pm, Ahmed Shoeib 
wrote:
> sure i need to know more about it
> i you can support an example explain it
> it will be very helpful
>
> On Aug 20, 6:23 am, Benjamin  wrote:
>
>
>
> > I integrate my app engine apps with facebook without any third part
> > api - just http, oauth and the facebook graph - let me know if you'd
> > like to know more.
>
> >http://developers.facebook.com/docs/api
>
> > On Aug 18, 3:40 pm, Peter Simun  wrote:
>
> > > This can helps youhttp://java.dzone.com/articles/efective-json-google-web
>
> > > Peer
>
> > > On 18. Aug, 13:05 h., Ahmed Shoeib 
> > > wrote:
>
> > > > hi all ,
>
> > > > i want a simple application explain how to integrate facebook api
> > > > with my app engine application
>
> > > > best regards,
> > > > ahmed shoeib
> > > > java developer

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[appengine-java] Re: Ecryption best practices (server side, client side, password handling)?

[Luis Daniel Mesa Velasquez]

I use both... but i guess it's just my case... my app is connected to
Facebook and since something in their API catches fire daily over
there, i decided to use one thing for something and another for the
rest... i have to do a HmacSHA256 verification to ensure the data
comes from FB and there's also the OpenGraph thing with token and code
trading... check GWT Crypto to encrypt client-side... use https (if
you can)... and verify the data comes from where you think it comes at
the server side... and remember that if someone has access to the
datastore it doesn't matter if you encrypt, hash or whatever... if
they delete the info, it's the same thing. Control the access to the
information and you'll be on the safeR side... nothing is perfect...

On Jul 31, 12:07 pm, Sven  wrote:
> Dear group,
>
> I want to extend a GWT/GAE application by offering the option to
> encrypt information entered by the user on client side in the
> database. The goal is to increase trust when storing potentially
> sensitive data, e.g. to prevent that people who have access to the DB
> (like me) have read access to the stored information.
>
> For client-side encryption using GWT I found this 
> post:http://www.mooreds.com/wordpress/archives/000529
>
> However, others do not even recommend to compute password hashs on the
> client and propose to do that on the 
> server:http://www.owasp.org/index.php/Hashing_Javahttp://stackoverflow.com/questions/1238628/md5-hash-for-password-stri...http://stackoverflow.com/questions/695813/how-could-you-encrypt-user-...
>
> From user's perspective, I would not be comfortable with transmitting
> my data unencrypted to the server (even using HTTPS), as the server-
> side may for example log my information (and my password!). Especially
> for the password-part I would feel unconfortable, as many people tend
> to reuse their passwords (please no discussion about this :-)).
>
> Currently, I see two options:
> a) Encrypt and decrypt the information on the client using JS/GWT.
> Pro: The password never leaves the browser, the unencrypted
> information never leaves the browser. Con: Depending on the size of
> the data the encryption/decryption may be slow; if loaded via HTTP,
> the JS code may be compromised, etc.
> b) Encrypt and decrypt the information on the server. Pro: Fast. Con:
> The information is transmitted unencrypted.
>
> What would be your recommendation?
>
> In case of server-side encryption, would it make sense to hash the
> password on client side and to use the hash to encrypt/decrypt? Or
> would that be a no-go?
>
> What happens if the user forgets his/her password? All data lost, I
> guess?
>
> I have no deep practical experience with cryptography, so I would
> appreciate any suggestions or pointers to resources in the web. My
> goal is not to have a bullet proof solution for highly sensitive
> information, but it should be an improvement compared to the current
> implementation (no HTTPs, no encryption).
>
> Thanks
> Sven
>
> PS: x-post Google App Engine for Java, Google Web Toolkit

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[appengine-java] Re: Channel api / Dance dance robot: what is ApplicationError: 2:

[Daniel Guermeur]

Thanks Don. Works perfectly.

Here is a recap to summarize all the steps so others can do it too:

1. Extract the "apphosting/tools/dev-channel-js.js" file from
appengine-api-1.0-sdk-1.3.5.jar
2. Create a directory _ah/channel in your war directory
3. Rename dev-channel-js.js to jsapi and place it in _ah/channel dir.
4. In your main html file include this jsapi file with 

[appengine-java] Re: Dance Dance Robot error / Channel API

[Daniel Guermeur]

Thanks Don. Including dev-channel-js.js works perfectly.

Daniel

On Jul 27, 10:14 am, Don Schwarz  wrote:
> Sorry, to be clear, I meant that you should create an /_ah/channel directory
> at the top of your war and copy dev-channel-js.js so it is a file named
> 'jsapi' in that /_ah/channel directory.  This is the path that will work
> automatically in the 1.3.6 DevAppServer and in prod when this feature
> launches publicly.
>
> If you name the script something else (as you've done), that will work fine
> for now but you'll need to remember to adjust the path later.
>
>
>
> On Mon, Jul 26, 2010 at 9:47 PM, GoSharp Lite  wrote:
> > Thanks, Don. It works like a charm after I include below line in html.
> > 
>
> > On Jul 26, 11:03 pm, Don Schwarz  wrote:
> > > Yes, this feature isn't launched in the production server yet.
>
> > > You can try it out in the 1.3.5 DevAppServer, but it requires a slightly
> > > workaround:
>
> > > Extract the "apphosting/tools/dev-channel-js.js" file from
> > > appengine-api-1.0-sdk-1.3.5.jar and move it to /_ah/channel/jsapi in your
> > > war directory (as if it were a static file).
>
> > > Your HTML should then use 

[appengine-java] Channel api / Dance dance robot: what is ApplicationError: 2:

[Daniel Guermeur]

Hello there,

I am trying out the Channel API with my own project and the Google
demo app Dance Dance Robot. In both cases I get ApplicationError 2
when trying to push a message.  There is no doc but all libraries are
available in the lastest GAE release. Here is the error:

com.google.appengine.api.channel.ChannelFailureException: An
unexpected error occurred.
Caused by: com.google.apphosting.api.ApiProxy$ApplicationException:
ApplicationError: 2:

See trace below.

What is ApplicationError2, how to fix it?

Any help / pointer would be appreciated.

Thanks.
Daniel

SEVERE: Failed to push the message
com.metadot.book.stalkrapp.shared.mess...@1010a3b to client channel-
a4kt0t-stalkrappt...@example.com-1
com.google.appengine.api.channel.ChannelFailureException: An
unexpected error occurred.
at
com.google.appengine.api.channel.ChannelServiceImpl.sendMessage(ChannelServ
iceImpl.java:
59)
at
com.metadot.book.stalkrapp.server.PushServer.sendMessageToOneUser(PushServe
r.java:
82)
at
com.metadot.book.stalkrapp.server.FriendsServiceImpl.getFriend(FriendsServi
ceImpl.java:
283)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp
l.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime 
.java:
100)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
562)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServi
ceServlet.java:
188)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServi
ceServlet.java:
224)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(Abstract
RemoteServiceServlet.java:
62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:
713)
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.metadot.book.stalkrapp.server.servlets.LoginFilter.doFilter(LoginFilter 
.java:
31)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFi
lter.java:
51)
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
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFile
Filter.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(DevAppEn
gineWebAppContext.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.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:
755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:
218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:
404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
409)
at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:582)
Caused by: com.google.apphosting.api.ApiProxy$ApplicationException:
ApplicationError: 2:
at
com.google.appengine.api.channel.dev.LocalChannelService.sendChannelMessage
(LocalChannelService.java:
91)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at

[appengine-java] Re: Dance Dance Robot error / Channel API

[Daniel Guermeur]

Thanks for the tip about channel.js. This is what I needed.

Now I get an error when pushing a message to a client. I get this:

com.google.appengine.api.channel.ChannelFailureException: An
unexpected error occurred.
Caused by: com.google.apphosting.api.ApiProxy$ApplicationException:
ApplicationError: 2:

Here is the stack trace. Let me know of any ideas you might have.

Thanks!
Daniel


SEVERE: Failed to push the message
com.metadot.book.stalkrapp.shared.mess...@1010a3b to client channel-
a4kt0t-stalkrappt...@example.com-1
com.google.appengine.api.channel.ChannelFailureException: An
unexpected error occurred.
at
com.google.appengine.api.channel.ChannelServiceImpl.sendMessage(ChannelServiceImpl.java:
59)
at
com.metadot.book.stalkrapp.server.PushServer.sendMessageToOneUser(PushServer.java:
82)
at
com.metadot.book.stalkrapp.server.FriendsServiceImpl.getFriend(FriendsServiceImpl.java:
283)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:
100)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
562)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
188)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:
224)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:
62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)
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.metadot.book.stalkrapp.server.servlets.LoginFilter.doFilter(LoginFilter.java:
31)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
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.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
409)
at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:582)
Caused by: com.google.apphosting.api.ApiProxy$ApplicationException:
ApplicationError: 2:
at
com.google.appengine.api.channel.dev.LocalChannelService.sendChannelMessage(LocalChannelService.java:
91)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.appengine.tools.development.ApiProxyLocalImpl
$AsyncApiCall.call

[appengine-java] Re: App Engine integration with Google Apps Marketplace

[Daniel Pascariu]

Hi Lorenzo,

Thanks for taking the time to help !

I tried to call userService.createLoginURL with federatedIdentity =
"https://www.google.com/accounts/o8/site-xrds?hd=domain1.com"; as you
suggested and it seems to work :)

But it also works with federatedIdentity = 'domain1.com" !

The produced URLs are slightly different, but the outcome seems the
same - I can login to domain1.com using user1 (on google apps).
I'm wondering if there's any subtle difference between the OpenId
authentification in the two cases - do you know ?

Thanks,
Daniel


On Jul 19, 9:43 am, "l.denardo"  wrote:
> The link to generate login URL is different for apps accounts
>
> String appsLoginUrl = userService.getOpenIdLoginUrl(redirectTo,
> loginDomain,
>                                                 
> "https://www.google.com/accounts/o8/site-xrds?hd="; +
> loginDomain, attributesRequest);
>
> loginDomain is obviously your domain, in your case the URL is
> "https://www.google.com/accounts/o8/site-xrds?hd=domain1.com";
>
> Regards
> Lorenzo
>
> On Jul 15, 11:29 pm, Daniel Pascariu 
> wrote:
>
> > Hi,
>
> > I'm trying to enable SSO for my App Engine app in order to put it on
> > the Google Marketplace.
> > Let's say that I have my GAE app running atwww.example.com. When I
> > publish it to the Google Marketplace, a Google Apps user (say
> > us...@domain1.com) will be able to click on a link in the Google menu
> > pointing to my site - something like 
> > this:http://www.example.com/home?from=google&domain=domain1.com
>
> > Now, acording to this docu (http://code.google.com/appengine/docs/java/
> > users/overview.html) I should use the Users API to authenticate the
> > user.
> > I assume I have to use  userService.createLoginURL method somehow and
> > use the domain "domain1.com" (which is passed as a parameter to my /
> > home servlet).
>
> > I have tried something like this:
>
> > Set attributesRequest = new HashSet();
> > attributesRequest.add("openid.mode=checkid_immediate");
> > attributesRequest.add("openid.ns=http://specs.openid.net/auth/2.0";);
> > attributesRequest.add("openid.return_to=" + thisUrl);
> > userService.createLoginURL(thisUrl, "domain1.com", 
> > "https://www.google.com/accounts/o8/id";, attributesRequest);
>
> > The probem is that the login URL which I get works for google accounts
> > only (like gmail accounts) - I do not get any Google Apps page where a
> > user like us...@domain1.com could login :(
>
> > Does anybody know how I can get this working ? Or am I on the wrong
> > track ?
>
> > Many thanks for the help !!
> > Daniel

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[appengine-java] App Engine integration with Google Apps Marketplace

[Daniel Pascariu]

Hi,

I'm trying to enable SSO for my App Engine app in order to put it on
the Google Marketplace.
Let's say that I have my GAE app running at www.example.com. When I
publish it to the Google Marketplace, a Google Apps user (say
us...@domain1.com) will be able to click on a link in the Google menu
pointing to my site - something like this:
http://www.example.com/home?from=google&domain=domain1.com

Now, acording to this docu (http://code.google.com/appengine/docs/java/
users/overview.html) I should use the Users API to authenticate the
user.
I assume I have to use  userService.createLoginURL method somehow and
use the domain "domain1.com" (which is passed as a parameter to my /
home servlet).

I have tried something like this:

Set attributesRequest = new HashSet();
attributesRequest.add("openid.mode=checkid_immediate");
attributesRequest.add("openid.ns=http://specs.openid.net/auth/2.0";);
attributesRequest.add("openid.return_to=" + thisUrl);
userService.createLoginURL(thisUrl, "domain1.com", "https://
www.google.com/accounts/o8/id", attributesRequest);

The probem is that the login URL which I get works for google accounts
only (like gmail accounts) - I do not get any Google Apps page where a
user like us...@domain1.com could login :(

Does anybody know how I can get this working ? Or am I on the wrong
track ?

Many thanks for the help !!
Daniel

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[appengine-java] Re: Dance Dance Robot error / Channel API

[Daniel Guermeur]

Yes it is in App Engine 1.3.5. Look in the jar. I've got the backend
working already. There is no doc, just classes.

Among other things here is what there is:

import com.google.appengine.api.channel.ChannelMessage;
import com.google.appengine.api.channel.ChannelService;
import com.google.appengine.api.channel.ChannelServiceFactory;

and it all works.

Daniel

On Jul 16, 6:42 pm, Rahul Ravikumar  wrote:
> The Channel API for Google App Engine is not out yet!
>
> On Jul 15, 6:11 pm, Daniel Guermeur  wrote:
>
>
>
> > Hello there,
>
> > I am building a GWT+ GAE app based on Dance Dance Robot app, the demo
> > Google IO demo app showcased at Google IO.
>
> > I am using the Channel API (Java AppEngine 1.3.5) . I am almost there
> > but there is one hick up on the GWT client side (Java):
>
> > When running the app I get an error:
> > ==
> > - Uncaught exception escaped.
> > com.google.core.client.JavaScriptException: (TypeError): $wnd.goog is
> > undefined.
> > ==
>
> > This comes from the ChannelFactory.java on the client side. Here it
> > is:
>
> > public class ChannelFactory {
> >     public static final native Channel createChannel(String
> > channelId) /*-{
> >       return new $wnd.goog.appengine.Channel(channelId);
> >     }-*/;
>
> > }
>
> > Again this is straight from the Dance Dance Robot demo app.
>
> > I am pretty sure it is a stupid mistake on my part but can't find it.
>
> > Any suggestion would be greatly appreciated.
>
> > Daniel

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[appengine-java] Dance Dance Robot error / Channel API

[Daniel Guermeur]

Hello there,

I am building a GWT+ GAE app based on Dance Dance Robot app, the demo
Google IO demo app showcased at Google IO.

I am using the Channel API (Java AppEngine 1.3.5) . I am almost there
but there is one hick up on the GWT client side (Java):

When running the app I get an error:
==
- Uncaught exception escaped.
com.google.core.client.JavaScriptException: (TypeError): $wnd.goog is
undefined.
==

This comes from the ChannelFactory.java on the client side. Here it
is:

public class ChannelFactory {
public static final native Channel createChannel(String
channelId) /*-{
  return new $wnd.goog.appengine.Channel(channelId);
}-*/;
}

Again this is straight from the Dance Dance Robot demo app.

I am pretty sure it is a stupid mistake on my part but can't find it.

Any suggestion would be greatly appreciated.


Daniel

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[appengine-java] Re: PDF Files

[Daniel]

But it says that on" Will it play in App Engine"

That its incompatible:

iText
Version(s): ?
Status: INCOMPATIBLE

* iText relies on several classes not in the JRE class whitelist
including java.awt.Color and java.nio.MappedByteBuffer. A bug has been
filed at 
http://sourceforge.net/tracker/?func=detail&atid=365255&aid=2810312&group_id=15255.

On Jul 15, 7:51 am, Shyam Visamsetty  wrote:
> Chris,
>
> Did you want to generate a PDF File on the GAE?
> If yes, you can use the iText library for generating the pdfs on the
> app engine. You can have a servlet to download the PDF file you
> generated.
>
> Thanks,
> Shyam Visamsetty
>
> On Jul 14, 1:36 pm, chrischelmi  wrote:
>
> > Helle every body,
> > I am working on a Google App Engine Project that consists of uploading
> > PDF files and displaying it after.
> > I use a Blob to store the PDF file
> > i want to do a process to download this PDF file by giving the a
> > specifics name.
> > Is there a way to generaye PDF files with GAE?
> > i have a process to display the PDF but i want to download it direcly
> > from an URL.

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[appengine-java] Re: Problem persist JDO- one to many

[Luis Daniel Mesa Velasquez]

It's only required for bidirectional mapping but he has a Torneo in
the Equipo, i assumed it was bidirectional by reading that... but i
could have been biased in the assumption... I found all the info here
useful... but i think the DOCS should be updated. I know all this info
ALREADY IS in the docs at
http://code.google.com/appengine/docs/java/datastore/relationships.html#Owned_One_to_One_Relationships
but since there's a little doubt it should be repeated in
http://code.google.com/appengine/docs/java/datastore/relationships.html#Owned_One_to_Many_Relationships

On Jul 13, 12:17 am, Prashant  wrote:
> Yes, it worked without explicitly detaching fields with just  
> defaultFetchGroup
> set to "true".
>
> btw,
> mappedBy property is required only for bi-directional mapping.
>
> --
> Prashantwww.claymus.com

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[appengine-java] I cannot access the url of my deployed application? getting "Not Found"

[Daniel]

Hi

I got no firewall on the PC and i can log in into the "https://
appengine.google.com/dashboard?&app_id=*"

Than when i browse to Administration -> Versions  i click on the link
of the application and getting immediate "Not Found" it looks like it
doesn't even try to surf to the web page

tried in FF and IE same result...

Am im missing something?

there is no trace in the logs either... so its not an application
error..

It used to work and suddenly starting couple of days ago, it
stopped.

What can i do?

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[appengine-java] Re: Java Server Faces 2.0 does not works in GAE (for me)

[Daniel]

It looks fine to me... all ur settings and configs aresame as at my
web app i also took them from that web site

If i were u i would delete the project and build it from scratch.. its
probably some silly mistake... its not that u in the middle of the
project..
u just started it


should work


good luck

On Jul 13, 3:02 am, SammyBar  wrote:
> Hi all,
>
> I'm trying to config my first Java Server Faces project with GAE. I
> have already configured my Eclipse following instructions published 
> athttps://sites.google.com/a/wildstartech.com/adventures-in-java/Java-P...,
> and also included the fix on the jsf-impl-gae.jar. I'm able to run my
> project in Eclipse without errors. The console displays "INFO: The
> server is running athttp://localhost:/";. It looks everything is
> OK.
> But when I direct the browser to the above mentioned URL, I get a HTTP
> 404 error "/welcome.jsf not found"
> I'm able to put a breakpoint in the index.jsp page at "<%
> response.sendRedirect("welcome.jsf"); %>" It confirms me the app is
> working because the breakpoint is reached, but it looks like the
> server is unable to "understand" the "welcome.xhtml" file should be
> processed as "welcome.jsf". Similarly by pointing the browser 
> tohttp://localhost:/welcome.xhtmlalso returns a 404 error. What is
> wrong with my configuration?
>
> Any hint is welcomed.
> Thanks in advance
> Sammy
>
> Follows the appengine-web.xml and web.xml files from my war/WEB-INF
> folder which are copies of the reccommended files published in the
> above mentioned site:
>
> --- appengine-web.xml
> 
> 
> http://appengine.google.com/ns/1.0";>
>         TestJSF
>         1
>         true
>
>         
>         
>                 
>         
>
> 
>
> --- web.xml
> 
> 
> http://java.sun.com/xml/ns/javaee";
>   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>   
> xsi:schemaLocation="http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";>
>   
>     Wildstar Technologies, LLC. Google AppEngine JSF 2.0 Template
>   
>   
>     Template JSF 2.0 application configured to run on the Google
>     AppEngine for Java.
>   
>   
>   
>     javax.faces.STATE_SAVING_METHOD
>     server
>   
>   
>   javax.faces.DEFAULT_SUFFIX
>     .xhtml
>   
>   
>   
>     com.sun.faces.expressionFactory
>     com.sun.el.ExpressionFactoryImpl
>   
>   
>     
>       Set this flag to true if you want the JavaServer Faces
>       Reference Implementation to validate the XML in your
>       faces-config.xml resources against the DTD. Default
>       value is false.
>     
>     com.sun.faces.validateXml
>     true
>   
>   
>   
>     
>       When enabled, the runtime initialization and default
> ResourceHandler
>       implementation will use threads to perform their functions. Set
> this
>       value to false if threads aren't desired (as in the case of
> running
>       within the Google Application Engine).
>
>       Note that when this option is disabled, the ResourceHandler will
> not
>       pick up new versions of resources when ProjectStage is
> development.
>     
>     com.sun.faces.enableThreading
>     false
>   
>   
>   
>     Faces Servlet
>     javax.faces.webapp.FacesServlet
>     1
>   
>   
>     Faces Servlet
>     /faces/*
>     *.jsf
>   
>   
>     30
>   
>   
>     index.jsp
>     index.xhtml
>     index.html
>   
> 

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[appengine-java] Re: JDO Collection of Serializables

[Luis Daniel Mesa Velasquez]

Are lists @Persistent by default? or is the @Element doing it for you?

On Jul 7, 12:46 pm, laserjim  wrote:
> Hey,
>
> I've attached some example code for reference:
>
> public class FooObject implements Serializable
> {
>     private final String name;
>     public FooObject(String name)
>     {
>         this.name = name;
>     }
>     public String toString()
>     {
>         return name;
>     }
>
> }
>
> @PersistenceCapable
> public class Entity
> {
>     @Element(serialized="true")
>     List foos = new ArrayList();
>
>     public void addFoo(FooObject foo)
>     {
>         foos.add(foo);
>     }
>     public List getFoos()
>     {
>         return foos;
>     }
>
> }
>
> Please let me know if you see the problem.
>
> Thanks!
>
> On Jul 7, 10:30 am, laserjim  wrote:
>
>
>
> > Hey,
>
> > I agree that your comments above are true for serialized fields, but I
> > can't find any documentation indicating such a behavior for
> > collections (I assume "supported collections" here, as described in
> > dataclasses#Collections).  My understanding is that a collection
> > should behave correctly (inserts, deletes, etc) unless the list its
> > self is serialized.  Can you provide a counter-example?
>
> > With regards to the article Max Ross wrote (very good article by the
> > way), the trick he used (where he made a copy in order to change the
> > reference) was intended to "dirty" the state when a member is
> > modified.  My FooObjects are immutable, so I don't think this applies
> > to me.  Max Ross' article is completely consistent with my
> > understanding of the documentation, but it's entirely possible I
> > missed something, so let me know if this doesn't sound right to you.
>
> > I BELIEVE the issue I'm running into is rooted in the exception I get
> > when trying to persist a populated instance of the list: "FooObject is
> > not a supported property type."  I'm just not understanding why it
> > isn't supported.  I would have expected that any serializable object
> > would be permitted, especially if the @Element(serialized="true")
> > annotation is specified.
>
> > Basically, I'm looking for a code fragment that demonstrates the
> > persistence of a collection of (more than one) non-standard
> > serializable objects.
>
> > Any ideas?
>
> > Thanks!
>
> > On Jul 7, 5:05 am, "l.denardo"  wrote:
>
> > > Hello,
> > > I guess your problem is the behavior of serialized fields (including
> > > collections of them, as far as I know), which is explained in Max
> > > Ross's post.
> > > Or something related to that.
>
> > > Anyway, some property fields are marked as "updated" and hence saved
> > > in the datastore only if you update the reference to the field, and
> > > they're not updated if you just use modifiers to operate on them.
> > > In practice, something like
>
> > >  ArrayList list = "retrieve from datastore"
> > > list.add(Foo foo)
> > > close persistence manager
>
> > > Does not modify the list in the datastore, so if it's saved as an
> > > empty list at creation it remains empty.
> > > Doing
>
> > >  ArrayList list = "retrieve from datastore"
> > >  ArrayList copy = new ArrayList(list);
> > >  copy.add(Foo foo)
> > >  list = copy;
> > > close PM
>
> > > Usually makes everything work, since the original list field is marked
> > > as "updated" and persisted.
> > > As far as I know this is true both for serialized fields and for many
> > > collections.
>
> > > Regards
> > > Lorenzo
>
> > > On Jul 7, 1:28 pm, laserjim  wrote:
>
> > > > Hello Lorenzo,
>
> > > > Thanks, but perhaps my question wasn't clear.  I'm trying to make a
> > > > list of serialized objects, NOT a serialized list of objects.
>
> > > > For instance, assuming FooObject implements Serializable...
>
> > > > @Element(serialized="true)
> > > > List foos = new ArrayList();
>
> > > > Unfortunately, the list is always empty.  Not quite sure why.
>
> > > > Thanks!
>
> > > > On Jul 7, 2:59 am, "l.denardo"  wrote:
>
> > > > > If you are using a serialized field you must add the serialized="true"
> > > > > clause to your annotation
>
> > > > > @Persistent(serialized="true")
> > > > > MySerializableObject serializable;
>
> > > > > Also notice that JDO does not automatically detect if you update only
> > > > > the inner fields of the object you save, so you must substitute it
> > > > > with a copy to have it persisted.
> > > > > See this post for a very good overview and an explanation of the fact
> > > > > above:
>
> > > > >http://groups.google.com/group/google-appengine-java/browse_thread/th...
>
> > > > > Regards
> > > > > Lorenzo
>
> > > > > On Jul 7, 1:33 am, laserjim  wrote:
>
> > > > > > Hello,
>
> > > > > > I'm still trying to persist a list of serializable objects. I would
> > > > > > expect this to be a standard collection as described 
> > > > > > here:http://code.google.com/appengine/docs/java/datastore/dataclasses.html...
>
> > > > > > FooObject is serializable, but my attempt gave me an exception:
> > > > > > FooObject is not a suppo

[appengine-java] Re: Desarrollo de Aplicaciones con Eclipse

[Luis Daniel Mesa Velasquez]

Puedes subir archivos de menos de 1MB al datastore y si es mayor
puedes usar BlobStore... depende de como desarrolles la aplicacion...
Busca ejemplos de File Upload App Engine Java (o Python).

Para Python (aunque este foro es Java) puedes leer
http://groups.google.com/group/google-appengine/browse_thread/thread/f9d0f22d8de8c025/bba32165e308dd13?lnk=gst&q=uploading+files#bba32165e308dd13

Para Java
http://groups.google.com/group/google-appengine-java/browse_thread/thread/5050f2b22afe2772/be72249c5bf605d5?lnk=gst&q=file+upload#be72249c5bf605d5


On Jul 9, 12:31 pm, Edixon Polanco  wrote:
> Y como puedo subir archivos en mi aplicación???
>
> El 9 de julio de 2010 14:05, John Patterson escribió:
>
>
>
> > Es un pregunta muy amplio.  Por eso no podemos ayudar mucho.
>
> > On 9 Jul 2010, at 23:57, Edixon Polanco wrote:
>
> > Buenas Tardes.
>
> > Si quiero desarrollar la aplicación con Google App Engine.
>
> > Me pueden ayudar? Gracias por su atención.
>
> > Saludos,
> > Edixon
>
> > 2010/7/7 Guillermo Schwarz 
>
> >> Edixon,
>
> >> ¿Lo quieres hacer en Google Application Engine?
>
> >> Saludos,
> >> Guillermo.
>
> >> 2010/7/6 Edixon Polanco 
>
> >>> Buenas Tardes.
>
> >>> Como puedo empezar a desarrollar una aplicación que funcione como una
> >>> biblioteca en la cual pueda subir mis archivos o libros y poder buscar
> >>> dentro de ellos
>
> >>> Nota: Espero me puedan dar alguna idea
>
> >>> Gracias.
>
> >>> --
> >>> You received this message because you are subscribed to the Google Groups
> >>> "Google App Engine for Java" group.
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> >>> .
> >>> For more options, visit this group at
> >>>http://groups.google.com/group/google-appengine-java?hl=en.
>
> >> --
> >> Saludos cordiales,
>
> >> Guillermo Schwarz
> >> Sun Certified Enterprise Architect
>
> >> --
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> >  --
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[appengine-java] How can i invalidate the session when user log in out from my app using the google log out link?

[Daniel]

Hi i got a JSF 2 web app, with the google login system, the thing is
that when the user click on the log out  (using the createLogoutURL
of the UserService class)

the session isnt being invalidated and the next user that doing login
from the same browser gets the previous user session.. and all the
data that was stored by the first user being seen by the next user

Maybe its possible to create a new session upon each user login...?


Any ideas?

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