[appengine-java] Re: Channel API still not live...
No activation yet. I'm waiting, too. Right now, we pull status every 5 minutes, but that's not the best way. Other APIs like Pushlet don't work on appengine. -- 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.
[appengine-java] Re: uploaded file how to view in browser
have u tried - setContentType method? On Oct 26, 12:05 pm, prabu prabuc...@gmail.com wrote: Hi.. I was uploaded file(pdf) in Blob it's working fine.and how to view uploaded file in browser (Download is working).but image files are view in browser I'm using struts framework. please help me.. ThanksRegards Prabu -- 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.
[appengine-java] Re: Channel API still not live...
Thanks everybody for the info. I just needed to see what are the chances for getting the API activated soon (this week). From Your answers I'd say very slim. On Oct 26, 8:16 am, Heiko Roth r...@egotec.com wrote: No activation yet. I'm waiting, too. Right now, we pull status every 5 minutes, but that's not the best way. Other APIs like Pushlet don't work on appengine. -- 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.
[appengine-java] Re: SDK/Eclipse pains on Ubuntu
Thanks for the contribution Ed - if you could elaborate (a little) on what you mean by/what happens for you when you copy the jars into the project I'd appreciate that. I've got options selected to run GAE from my 'WAR' directory, but I'm not aware of any JARs being copied to my WEB-INF/lib - indeed when they do occasionally get copied, that stops the datanucleus enrichment from working. I've also tried with the 'export' flag set on the build path configuration, with no change overall. Some updates/corrections from me: * The current problem definitely seems to be runtime/classpath/ classloader related - I'm getting ClassNotFound (CNF) exceptions on JDO implementation classes (i.e. not the implementations, but the concrete classes needed at runtime). I'd expect these to be coming from the GAE class library set - I can find them in jdo-xxx-eb-xx.jar (sorry for the hazy jar name, I'm in the day job, not in my dev environment at the time of writing). Annotation/enrichment works fine. * I'm using an Eclipse Dynamic Web Project, not a Google Web App Project as originally stated. As noted before, between SDK upgrades this works fine so I know that's not a problem. * I have altered the library order as per other threads (GAE needs to be before Web App). * I have seen the thread about long paths in the classpath (known issue with 1.3.8) - I have copied my plugin/SDK to a much shorter path location and regconfigured my project and still reproduced the same runtime CNF problems so that's not the issue. Given cumulative problems I've experienced with Google's dev environment/support, I'm now considering ditching the Google approach and going to a purer, more open cloud hosting model (poss AWS). Problems for me include: * facebook apis redundant, but not flagged as such * no full map/reduce api (got map, but no reduce) * SDK/plugin instability (this issue) * interplay problems with GAE and other tools (Vaadin for myself, looks like Flex also has issues) * no entry-level adwords/adsense solution for GWT (ajax) front-ends. Hardly a strong manifesto. -- 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.
[appengine-java] Re: OpenID Accounts with same emails and App Engine User class
Hello, to compare Users the only safe field is the unique User ID that is exposed via getUserId() method. http://code.google.com/appengine/docs/java/users/overview.html#Accessing_Account_Information Also getFederatedIdentity() could be a good bet, but documentation recommends using the identifier. I only use the email field after the user has been logged in, and restricting to Google as a provider. This should be safe enough. I think the only way to group accounts is to use IDs and set up an external verification like SMS or email confirmation. Regards Lorenzo On Oct 24, 10:04 pm, trustamli mc2...@gmail.com wrote: Hi, For some reason my application handles OpenID accounts with same emails as one user. It means when I try to access datastore entities with User field of new user it also gets entities of all other users with the same email. Is User object same as email? Pythod documentation says: User instances are unique and comparable. If two instances are equal, then they represent the same user. (but I use Java). I think I'm doing something wrong here: Query query = pm.newQuery(Subscriber.class, user == userParam); query.declareImports(import com.google.appengine.api.users.User); query.declareParameters(User userParam); �...@suppresswarnings(unchecked) ListSubscriber results = (ListSubscriber) query.execute(user); if (results.size()!=0) Logger.log(User logged in, results.iterator().next().getId()); ? With this problem using OpenID is very unsafe. Anybody can create an OpenID account with any email (for example with myOpenID), without email verification, and then log in to my application and get data related to all Users with this email. I believe I'm doing something wrong, so I'll really hope someone will open my eyes. Thanks, Best Regards. -- 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.
[appengine-java] Re: java.net.InetAddress present in new 1.3.8 SDK but not on live servers
may i know in gae, how to you set parameter for new LookupService(String databaseFile) ? do you use blockstore ? what is the path do you upload the maxmind dat file? -- 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.
[appengine-java] Re: java.net.InetAddress present in new 1.3.8 SDK but not on live servers
may i know in gae, how to you set parameter for new LookupService(String databaseFile) ? do you use blockstore ? what is the path do you upload the maxmind dat file? -- 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.
[appengine-java] Re: java.net.InetAddress present in new 1.3.8 SDK but not on live servers
may i know in gae, how to you set parameter for new LookupService(String databaseFile) ? do you use blockstore ? what is the path do you upload the maxmind dat file? -- 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.
[appengine-java] JSF 2.0 MyFaces problem with Ajax and Command Button
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. h:form prependId=false ... h:commandButton id=button1 action=page2 f:ajax / /h:commandButton /h:form Dave -- 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.
[appengine-java] Memory based application, static field, data lost
Hello everyone.
I've a issue when using my apps.
All my logics application data are in memory.
For exemple, I've a servlet like this :
public class MyServlet {
/** Logic application object, create when the class is loaded by the
sandbox. */
private static Logics myLogic = new Logics();
/** Handle post request */
protected void doPost( [...]) {
myLogic.doStuff([...]);
}
}
The doPost method don't take 30 seconds to be execute.
My issue is this : Few minutes after my servlet is loaded and works,
I've got a new instance of Logics.
I thing AppEngine reload my class.
I haven't read about this kind of comportment. Maybe I haven't read the
docs enough.
Must I use appengine api, like memcache ?
Thanks for reading this newbie appengine developer message.
Have a nice day.
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[appengine-java] Sharing a PersistenceManagerFactory instance between web application instances
As we all know, the construction of a PersistenceManagerFactory (PMF) instance that is needed for exchanging data with the datastore is slow. To speed up the showing of my home page (which does not need data from the datastore), my application creates a queued task at launch-time, which constructs its singleton PMF instance asynchronously. This way, the creation of my PMF does not add to spin-up (and other?) delays to app start-up. Can a PMF instance be shared between application instances? If so, I could hasten app initialisation by getting an already- existing PMF instance from the memory cache and only construct one if it is no longer in the memory cache. -- 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.
[appengine-java] Get number of children from multiple objects
I'm using the datastore of the Google App Engine (DataNucleus). I have
two classes, one Chat and one Rating. A chat can be rated more then
ones so I created an one-many relationship by adding a list to the Chat
class.
Now I want to know the number of unrated chats, so I did the following:
int numberOfChatsInStock = 0;
for(Chat chat : chats){
if(chat.getRatings().size() == 0){
numberOfChatsInStock++;
}
}
This simply iterate through all chats and checks if the number of
ratings is 0.
This solution works well when there are 10 chats, but when I have 500+
chats then the speed is terrible (15 sec +).
I thought maybe the size() method is faster. So I tried
Query.setFilter(ratings.size() == 0) but this gives me the following
error:
Unsupported method size while parsing expression:
InvokeExpression{[PrimaryExpression{ratings}].size(none)}
Is there any way to increase the speed?
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[appengine-java] Re: Memory based application, static field, data lost
The GAE datastore is a form of persistent data storage, in that data
stored there will survive the discarding of instances of your
application (GAE will discard instances in cases of low usage).
Data stored in the memory cache can survive the discarding of
instances of your application, but there is no guarantee; data in the
memory cache may be discarded by GAE at any time.
My (Apache Wicket) web sessions are stored by GAE in both the memory
cache (for speed of access) and the datastore (for guarantee of
access) automatically. If you do not have much data, you could store
your data in a web session - but of course this data will have session
scope only - not application instance or all-application-instances
scope.
Since I want to store persistent data, I use the datastore. One could
be clever by using queued tasks to do this somehow, but I cannot be
bothered with the resultant complexity.
On Oct 26, 11:22 am, yoyo yoyomo...@gmail.com wrote:
Hello everyone.
I've a issue when using my apps.
All my logics application data are in memory.
For exemple, I've a servlet like this :
public class MyServlet {
/** Logic application object, create when the class is loaded by the
sandbox. */
private static Logics myLogic = new Logics();
/** Handle post request */
protected void doPost( [...]) {
myLogic.doStuff([...]);
}
}
The doPost method don't take 30 seconds to be execute.
My issue is this : Few minutes after my servlet is loaded and works,
I've got a new instance of Logics.
I thing AppEngine reload my class.
I haven't read about this kind of comportment. Maybe I haven't read the
docs enough.
Must I use appengine api, like memcache ?
Thanks for reading this newbie appengine developer message.
Have a nice day.
--
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[appengine-java] Low-level API: EntityTranslator and DataTypeTranslator
Hi, guys. Is there any information of how could I use these classes in my code? Best regards, Alexander. -- 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.
Re: [appengine-java] Low-level API: EntityTranslator and DataTypeTranslator
These are unpublished classes so you should use them at your own risk. They may change in a future release in which case you will get NoSuchMethodError exceptions thrown. You can see how Twig uses them in AyncDatastoreHelper to implement async datastore commands. Twigs implementation protects against changes to these classes by capturing errors and retrying the normal synchronous commands instead. So if there are any problems due to server side upgrades Twig drops back to normal speed operations that are run serially rather than in parallel. John On 26 Oct 2010, at 18:02, dominity wrote: Hi, guys. Is there any information of how could I use these classes in my code? Best regards, Alexander. -- 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 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 . -- 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.
[appengine-java] Re: Memory based application, static field, data lost
Thanks for your answear. So, GOE discard instances in cases of low usage. I didn't know. My app is an image board, like 4chan.org. The blowstore api in only available for billing account. I can't use the blowstore because my app isn't commercial. I write it only for fun and i don't want to pay for it. I'll use the memcache service. It's not important if some of pictures are lost. There is no guarantee, but I hope keep most of pictures into it. Else... well I'll see. I've some refactoring to do. Thanks again for your answear. -- 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.
[appengine-java] Re: SDK/Eclipse pains on Ubuntu
In the above post not the implementations should read not the interfaces. Aw snap! as Chrome says. -- 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.
[appengine-java] Java while statement bug on GAE server?
Now I am using GDataI for Java and I tried following code to get Google
document list
DocumentListFeed tempFeed;
tempFeed = myService.getFeed(feedUrl, DocumentListFeed.class);
After I confirmed this code work without problem, I change code as
following to be able to feed more than one page entry, but this code
create Null pointer Exception.
DocumentListFeed tempFeed;
tempFeed = myService.getFeed(feedUrl, DocumentListFeed.class);
resultFeed.getEntries().addAll(tempFeed.getEntries());
while((tempFeed.getNextLink() != null)
(tempFeed.getEntries().size()0));
{
tempFeed = myService.getFeed(new
URL(tempFeed.getNextLink().getHref()),DocumentListFeed.class);
resultFeed.getEntries().addAll(tempFeed.getEntries());
}
I confirmed that “tempFeed.getNextLink()” is null. But this is a
condition to repeat while. I could not understand why this code fail
and I found suspicious info which related to Java while statement bug
in a following URL. Is this real bug?
http://java.decompiler.free.fr/?q=node/263 after I get info, I changed
my code as following and confirmed this code works without error.
DocumentListFeed tempFeed = this.resultDocListFeed;
DocumentListFeed resultFeed = new DocumentListFeed();
boolean okToFeed = true;
do
{
if(tempFeed != null tempFeed.getEntries() != null)
{
if(tempFeed.getNextLink() != null tempFeed.getEntries().size()0)
{
tempFeed = this.docServiceClient.getFeed(new
URL(tempFeed.getNextLink().getHref()),DocumentListFeed.class);
resultFeed.getEntries().addAll(tempFeed.getEntries());
}
else
{
okToFeed = false;
}
}
else
{
okToFeed = false;
}
}while(okToFeed == true);
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[appengine-java] Re: memcache package not in classpath
Thanks a lot for sharing this! -- 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.
[appengine-java] Task Queue on other App Servers
Anyone out there got an implementation of the TaskQueue working on other app servers (jetty, tomcat)? We would like this as an option to ensure portability of our application between app engine and other options. Either the same Google TaskQueue code configured to run on another server, or a compatible implementation. If not, anyone else looking for the same - who is interested in sharing the effort of getting that running? -- 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.
[appengine-java] Re: Java while statement bug on GAE server?
Don't know APIs very well, but anyway it looks like in the while
version you check one link in the condition, then request newLink
again in the method body. At the end of the list you check for the
last element not to be null, then ask for one more (which is out of
list bounds).
You should be missing one page each two anyway...
I guess the do-while version catches this with the tempFeed != null
tempFeed.getEntries() != null check.
Regards
Lorenzo
On Oct 26, 2:16 pm, doc123 doc.u...@gmail.com wrote:
Now I am using GDataI for Java and I tried following code to get Google
document list
DocumentListFeed tempFeed;
tempFeed = myService.getFeed(feedUrl, DocumentListFeed.class);
After I confirmed this code work without problem, I change code as
following to be able to feed more than one page entry, but this code
create Null pointer Exception.
DocumentListFeed tempFeed;
tempFeed = myService.getFeed(feedUrl, DocumentListFeed.class);
resultFeed.getEntries().addAll(tempFeed.getEntries());
while((tempFeed.getNextLink() != null)
(tempFeed.getEntries().size()0));
{
tempFeed = myService.getFeed(new
URL(tempFeed.getNextLink().getHref()),DocumentListFeed.class);
resultFeed.getEntries().addAll(tempFeed.getEntries());
}
I confirmed that “tempFeed.getNextLink()” is null. But this is a
condition to repeat while. I could not understand why this code fail
and I found suspicious info which related to Java while statement bug
in a following URL. Is this real bug?
http://java.decompiler.free.fr/?q=node/263after I get info, I changed
my code as following and confirmed this code works without error.
DocumentListFeed tempFeed = this.resultDocListFeed;
DocumentListFeed resultFeed = new DocumentListFeed();
boolean okToFeed = true;
do
{
if(tempFeed != null tempFeed.getEntries() != null)
{
if(tempFeed.getNextLink() != null tempFeed.getEntries().size()0)
{
tempFeed = this.docServiceClient.getFeed(new
URL(tempFeed.getNextLink().getHref()),DocumentListFeed.class);
resultFeed.getEntries().addAll(tempFeed.getEntries());
}
else
{
okToFeed = false;
}
}
else
{
okToFeed = false;
}
}while(okToFeed == true);
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[appengine-java] Re: Java while statement bug on GAE server?
Sorry to use specific sample code. So I tried more basic following code.
try
{
int i =0;
boolean tempFlag = false;
while(tempFlag == true);
{
i++;
out.println(tempFlag + i + := + tempFlag);
tempFlag = false;
}
}
catch(Exception e)
{
out.println(Error + e.toString());
}
what I got is tempFlag1:=false but out.print is within a
while(tempFlag == true) bock.
I think this is bug.
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[appengine-java] Re: Java while statement bug on GAE server?
Really looks like a bug. Test condition should fail without printing
anything, in fact.
Sorry for my misleading answer, and thanks for sharing this.
Lorenzo
On Oct 26, 5:22 pm, doc123 doc.u...@gmail.com wrote:
Sorry to use specific sample code. So I tried more basic following code.
try
{
int i =0;
boolean tempFlag = false;
while(tempFlag == true);
{
i++;
out.println(tempFlag + i + := + tempFlag);
tempFlag = false;
}
}
catch(Exception e)
{
out.println(Error + e.toString());
}
what I got is tempFlag1:=false but out.print is within a
while(tempFlag == true) bock.
I think this is bug.
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Re: [appengine-java] Re: Java while statement bug on GAE server?
Yes, it's a bug in your code:
while(tempFlag == true);
Note the semicolon. Try removing it.
On Tue, Oct 26, 2010 at 10:22 AM, doc123 doc.u...@gmail.com wrote:
Sorry to use specific sample code. So I tried more basic following code.
try
{
int i =0;
boolean tempFlag = false;
while(tempFlag == true);
{
i++;
out.println(tempFlag + i + := + tempFlag);
tempFlag = false;
}
}
catch(Exception e)
{
out.println(Error + e.toString());
}
what I got is tempFlag1:=false but out.print is within a while(tempFlag
== true) bock.
I think this is bug.
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[appengine-java] Re: Java while statement bug on GAE server?
I need a good pair of glasses :-)
On Oct 26, 5:42 pm, Don Schwarz schwa...@google.com wrote:
Yes, it's a bug in your code:
while(tempFlag == true);
Note the semicolon. Try removing it.
On Tue, Oct 26, 2010 at 10:22 AM, doc123 doc.u...@gmail.com wrote:
Sorry to use specific sample code. So I tried more basic following code.
try
{
int i =0;
boolean tempFlag = false;
while(tempFlag == true);
{
i++;
out.println(tempFlag + i + := + tempFlag);
tempFlag = false;
}
}
catch(Exception e)
{
out.println(Error + e.toString());
}
what I got is tempFlag1:=false but out.print is within a while(tempFlag
== true) bock.
I think this is bug.
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[appengine-java] Re: Memory based application, static field, data lost
GAE runs multiple instances which means your code would be run on multiple JVMs as well which means the static field will be multiple as well. A lot of as wells here but I hope you get the point. Use statics for constants that do not change. For everything else persist either in memcache or datastore. -N On Oct 26, 4:17 pm, yoyo yoyomo...@gmail.com wrote: Thanks for your answear. So, GOE discard instances in cases of low usage. I didn't know. My app is an image board, like 4chan.org. The blowstore api in only available for billing account. I can't use the blowstore because my app isn't commercial. I write it only for fun and i don't want to pay for it. I'll use the memcache service. It's not important if some of pictures are lost. There is no guarantee, but I hope keep most of pictures into it. Else... well I'll see. I've some refactoring to do. Thanks again for your answear. -- 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.
[appengine-java] index stuck in Building status
Hi, i have appid ringojsblog, and there are 2 indexes with status Building for over half an hour. i have ~ 20 entities, that is all. Thank you in advance -- 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.
[appengine-java] Eclipse plugin insists on copying DataNucleus jars to war/WEB-INF/lib
Hello, My project needs only 2 jars from GAE/J: appengine-api-1.0-sdk-1.3.8.jar appengine-api-labs-1.3.8.jar The rest of the jars supplied by the plugin are API's that are not used by our application and thus not required as part of the deployment: appengine-jsr107cache-1.3.8.jar datanucleus-appengine-1.0.7.final.jar datanucleus-core-1.1.5.jar datanucleus-jpa-1.1.5.jar geronimo-jpa_3.0_spec-1.1.1.jar geronimo-jta_1.1_spec-1.1.1.jar jdo2-api-2.3-eb.jar jsr107cache-1.1.jar I've tried to delete these jars and deployed the app to GAE/J -- It works great and the application is running happily ever after. The thing is GAE Eclipse plugin insists on recopying the jars to the project war/WEB-INF/lib folder (* it's unclear the when it decides to do so). I even tried to edit the values of filesCopiedToWebInfLib from the settings file .settings/com.google.appengine.eclipse.core.prefs which also did not help (further more -- The plugin just updated this entry back to it's original state... why put a configuration option if you ignore it?) I want these jars removed for 2 reasons: - 1. It makes the project lighter, removes clutter and is generally better to pull small project over wire. - 2. I remember reading in the mailing list that fewer jars help improve the application cold start times. I'm not talking about projects like spring that have large startup penalty but simply having jar flles in the classpath. Don't know if this is true and I haven't done any benchmarks to verify this. OTOH to be on the safe side -- Why test if I can simply not upload the unwanted jars and be done with it? So, in conclusion - What is the proper method (if any) to instruct GAE Eclipse Plugin to skip checking and copying of jar's that are basic GAE sdk jars into my WEB-LIB/lib folder? Thanks for reading, Maxim. -- 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.
[appengine-java] Cheapest way to run an SQL EXISTS query with Datastore API?
What is the absolute cheapest way (CPU cost) theoretically to run an
SQL EXISTS query with the Datastore API?
I imagine FetchOptions would be
FetchOptions.Builder.withChunkSize(1).limit(1).prefetchSize(1) and
probably option 1 below.
Query query = new Query(KIND);
//add filters and sorts here, if querying by key use
query.setKeysOnly()
DatastoreService datastoreService =
DatastoreServiceFactory.getDatastoreService();
PreparedQuery pq = datastoreService.prepare(query);
//Option 1
long count =
pq.countEntities(FetchOptions.Builder.withChunkSize(1).limit(1).prefetchSize(1));
if (count == 0) {
//does not exist
}
else {
//exists
}
// or maybe
//Option 2
if (pq.asIterator().hasNext()) {
//exists
}
else {
//does not exist
}
Is there anything cheaper?
Best wishes,
Dan
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[appengine-java] Re: index stuck in Building status
after more digging, i guess it was due to changing versions in the admin interface while indexes were building up. after a new deploy on the same version, it was all ok in 1 minute. On Tue, Oct 26, 2010 at 7:18 PM, gabriel munteanu jajali...@gmail.com wrote: Hi, i have appid ringojsblog, and there are 2 indexes with status Building for over half an hour. i have ~ 20 entities, that is all. Thank you in advance -- jgabios http://bash.editia.info -- 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.
[appengine-java] upload_data to dev server failing --- Cookie name Path is a reserved token
I have successfully used appcfg.py upload_data to get lots of data onto my app at appspot.google.com. Now, I'd like to have the same, complete dataset on my development server. However, each attempt of appcfg.py to hit the development server is failing. A clue is that it is generating a server log: [WARN] java.lang.IllegalArgumentException: Cookie name Path is a reserved token Here is the full command: appcfg.py --config_file=configuration.kind2.yaml --application=myappid --url=http://localhost:/_ah/remote_api --no_cookies --filename=datafilename --kind=data kind --log_file=tmp/bulkloader.log --db_filename=tmp/bulkloader.sql3 upload_data I'm on the latest and greatest of just about everything and am stumped now. Versions are below. Ideas are welcome. Again, the same script --- except for authentication differences --- has worked over and over again on appspot. ~Brian Dev server launched by Google App Engine Java SDK 1.3.8 Plugin Plug-in is running under Eclipse 3.6 Helios SR1. Yesterday (10/24/2010) I accepted a Java update from Apple, to 13.3.0. OS is Mac OS X 10.6.4. -- 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.
[appengine-java] key.id - works for me, but is it the right way to go?
Building a test application just to learn about GAE/J and things are
working fine (so far), but I am wondering if I am veering off in a
wrong direction. Here is a simplified statement of the situation...
1. I have an entity class for an entity A
public class A implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Key key;
2. In a JSP page, I display a list of As, with a link to show the full
details of an A. This link is generated by the JSTL:
a href=/show?aKey=c:out value=${a.key.id} /c:out value=$
{a.key.id} //a/td
3. In the show servlet, I have:
Long requestKey = Long.parseLong(req.getParameter(aKey));
Key aKey= KeyFactory.createKey(A, requestKey);
A a = em.find(A.class, aKey);
As mentioned, it all works fine. I have used this for both entities
with no parents (as above) and entities owned by a parent. It just
seems odd to me that I am using something like ${a.key.id} rather than
${a.key}, but ${a.key} gives me the key.toString() value rather than
the KeyFactory.keyToString(key) value. Also, since I am using JSTL, I
don't know how to use KeyFactory (without using a JSP scriptlet, which
I try (for no particular reason) to avoid.
Is the above ok/safe/fine - or am I abusing GAE and generating major
negative GAE karma which will come back to bite me in the future? :)
Thanks!
RB
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Re: [appengine-java] Re: Channel API still not live...
Very slim. We want to ship it as soon as possible. In the meantime, there are plenty of services that offer this type of functionality: http://beaconpush.com http://pubnub.com ... and so forth Don't let this feature block you if your application needs it. Build it using another tool and port it over when we are ready to release the Channel API for everyone. -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Tue, Oct 26, 2010 at 12:41 AM, stole goran.stoj...@gmail.com wrote: Thanks everybody for the info. I just needed to see what are the chances for getting the API activated soon (this week). From Your answers I'd say very slim. On Oct 26, 8:16 am, Heiko Roth r...@egotec.com wrote: No activation yet. I'm waiting, too. Right now, we pull status every 5 minutes, but that's not the best way. Other APIs like Pushlet don't work on appengine. -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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.
[appengine-java] Re: 1.3.8 Console Logging Issue
I am getting the same problem but still on GWT 2.0.3. It must be an app engine java dev server problem. On Oct 25, 6:04 am, vvorski vic...@vorski.com wrote: Same here with python on a Mac. Have heard reports of same with Java on windows. Seems to be a global1.3.8problem? V/. On Oct 24, 9:04 pm, jt john.j.tho...@gmail.com wrote: Hello, I upgraded my project from 1.3.4 to1.3.8. After the upgrade, the console fails to log. If I switch back to 1.3.4, the console logs properly. I am on a 64-bit Windows Vista environment, running Eclipse 3.4.2 w/ (MyEclipse and Instantiations GWT tools) Thanks -- 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.
Re: [appengine-java] recommendation on using maxmind geoip
MaxMind IP was what I used for this example: http://ikaisays.com/2010/08/11/using-the-app-engine-mapper-for-bulk-data-import/ -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Mon, Oct 25, 2010 at 9:02 PM, asianCoolz second.co...@gmail.com wrote: may i know what is the preferable way of using maxmind geoip? upload the 'binary file' or bulk upload the csv files into bigtable? the prior technique will slow down application startup time? -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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.
Re: [appengine-java] Sharing a PersistenceManagerFactory instance between web application instances
No, you can't share a PMF instance between app instances. Constructing this is slow because it has to do classpath scanning. Note that if you use the low-level API, application startup time is greatly reduced: http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/package-summary.html -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Tue, Oct 26, 2010 at 3:32 AM, Ian Marshall ianmarshall...@gmail.comwrote: As we all know, the construction of a PersistenceManagerFactory (PMF) instance that is needed for exchanging data with the datastore is slow. To speed up the showing of my home page (which does not need data from the datastore), my application creates a queued task at launch-time, which constructs its singleton PMF instance asynchronously. This way, the creation of my PMF does not add to spin-up (and other?) delays to app start-up. Can a PMF instance be shared between application instances? If so, I could hasten app initialisation by getting an already- existing PMF instance from the memory cache and only construct one if it is no longer in the memory cache. -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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.
Re: [appengine-java] Cheapest way to run an SQL EXISTS query with Datastore API?
The cheapest way is to use the value you are checking for as a datastore
key, then to do a get by key. A query always results in an index operation
followed by a fetch by key, so you are reducing the need for an index
lookup.
--
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Developer Programs Engineer, Google App Engine
Blogger: http://googleappengine.blogspot.com
Reddit: http://www.reddit.com/r/appengine
Twitter: http://twitter.com/app_engine
On Tue, Oct 26, 2010 at 10:02 AM, Dan Dubois uvico...@gmail.com wrote:
What is the absolute cheapest way (CPU cost) theoretically to run an
SQL EXISTS query with the Datastore API?
I imagine FetchOptions would be
FetchOptions.Builder.withChunkSize(1).limit(1).prefetchSize(1) and
probably option 1 below.
Query query = new Query(KIND);
//add filters and sorts here, if querying by key use
query.setKeysOnly()
DatastoreService datastoreService =
DatastoreServiceFactory.getDatastoreService();
PreparedQuery pq = datastoreService.prepare(query);
//Option 1
long count =
pq.countEntities(FetchOptions.Builder.withChunkSize(1).limit(1).prefetchSize(1));
if (count == 0) {
//does not exist
}
else {
//exists
}
// or maybe
//Option 2
if (pq.asIterator().hasNext()) {
//exists
}
else {
//does not exist
}
Is there anything cheaper?
Best wishes,
Dan
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[appengine-java] Re: SDK/Eclipse pains on Ubuntu
If you right-click your appengine project and choose properties from the contextual menu (or just select the project and select properties item in the Project menu on the menubar), you get the project properties. Select the Google in the navbar on the left, then select App Engine from the tree undeneath it. This shows the App Engine control panel. It has radio buttons for choosing the version of the SDK that you want to use. Next to the radio button Use default SDK there is a configure SDKs link. Select that link, then choose an older SDK as you default checking it.. Select OK to keep this selection and go back to the App Engine control panel. Now make sure the Use default SDK radio button is selected. Then select the OK button to close the control panel. This _may_ cause the old jars to get copied. If it does, you will see a progress window popup and then go away. Now re-open the App Engine control panel. This time, choose the radio button Use specific SDK and choose the most recent SDK in the pull down that is just to the right. Select the OK button to close the control panel. This time you _should_ see the progress window as the IDE copies the latest SDK jars into your project. Again, you are basically trying to get the plugin to detect that the SDK version has changed. If it properly detects this, it will automatically copy the jars into your project (and you will know this is happening because it puts up the progress window). Ed -- 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.
[appengine-java] Class not found in Eclipse
Hello everybody, I use the appengine eclipse plugin, I have created a 'Web Application Project' and a 'Simple Java Project' linked to it. When I launch the Web Application Project, classes from the Simple project are not found. Where I have to configure the classpath? I tried in the '.lauch' file but it doesn't work. Could you help me? Merci. -- 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.
Re: [appengine-java] Re: Please anyone from google on this
Hi Gal, I've looked into this and it appears that your page is indeed getting indexed properly -- so from Googlebot's perspective, all is good (although we are looking at modifying Fetch as Googlebot to give you the proper answer in the future). Hope this helps! kathrin On Fri, Oct 22, 2010 at 11:19 PM, Katharina Probst kpro...@google.comwrote: Hi Gal, sorry for the delayed response! At first glance, it looks like you're doing it right -- I will have to dig a little. kathrin On Fri, Oct 22, 2010 at 7:24 PM, Gal Dolber gal.dol...@gmail.com wrote: Please? Any information on this is appreciated On Wed, Oct 20, 2010 at 1:56 PM, Gal Dolber gal.dol...@gmail.com wrote: http://www.google.com/support/forum/p/Web+Search/thread?tid=47496ffe5ea01d39hl=en I notice that it works ok on gwt's showcase. Thanks -- Guit: Elegant, beautiful, modular and *production ready* gwt applications. http://code.google.com/p/guit/ -- Guit: Elegant, beautiful, modular and *production ready* gwt applications. http://code.google.com/p/guit/ -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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.
[appengine-java] JPA null pointerException at org.datanucleus.store.appengine.EntityUtils.getPkAsKey()
Hi all, I am new to Google App Engine. I am developing application with GAE and i am using JPA to access datastore. When I create entity and try to save into datastore, I get this exception: java.lang.NullPointerException at org.datanucleus.store.appengine.EntityUtils.getPkAsKey(EntityUtils.java:152) at org.datanucleus.store.appengine.DatastoreFieldManager.getKeyForObject(DatastoreFieldManager.java:625) at org.datanucleus.store.appengine.DatastoreFieldManager.getParentKeyFromParentField(DatastoreFieldManager.java:634) at org.datanucleus.store.appengine.DatastoreFieldManager.establishEntityGroup(DatastoreFieldManager.java:591) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPreProcess(DatastorePersistenceHandler.java:343) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(DatastorePersistenceHandler.java:251) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject(DatastorePersistenceHandler.java:240) at org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent(JDOStateManagerImpl.java:3185) at org.datanucleus.state.JDOStateManagerImpl.flush(JDOStateManagerImpl.java:4513) at org.datanucleus.ObjectManagerImpl.flushInternal(ObjectManagerImpl.java:2814) at org.datanucleus.ObjectManagerImpl.flush(ObjectManagerImpl.java:2754) at org.datanucleus.ObjectManagerImpl.preCommit(ObjectManagerImpl.java:2893) at org.datanucleus.TransactionImpl.internalPreCommit(TransactionImpl.java:369) at org.datanucleus.TransactionImpl.commit(TransactionImpl.java:256) at org.datanucleus.jpa.EntityTransactionImpl.commit(EntityTransactionImpl.java:104) at org.datanucleus.store.appengine.jpa.DatastoreEntityTransactionImpl.commit(DatastoreEntityTransactionImpl.java:55) at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:467) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754) at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723) at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:394) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:117) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) at $Proxy26.createNewUser(Unknown Source) at cz.cvut.bakalarka.writerbook.controllers.RegistrationController.registrate(RegistrationController.java:55) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:100) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:710) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:167) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:414) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:402) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) at org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:113) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:344) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:110) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at
Re: [appengine-java] Re: Please anyone from google on this
Thank you! Regards On Tue, Oct 26, 2010 at 5:51 PM, Katharina Probst kpro...@google.comwrote: Hi Gal, I've looked into this and it appears that your page is indeed getting indexed properly -- so from Googlebot's perspective, all is good (although we are looking at modifying Fetch as Googlebot to give you the proper answer in the future). Hope this helps! kathrin On Fri, Oct 22, 2010 at 11:19 PM, Katharina Probst kpro...@google.comwrote: Hi Gal, sorry for the delayed response! At first glance, it looks like you're doing it right -- I will have to dig a little. kathrin On Fri, Oct 22, 2010 at 7:24 PM, Gal Dolber gal.dol...@gmail.com wrote: Please? Any information on this is appreciated On Wed, Oct 20, 2010 at 1:56 PM, Gal Dolber gal.dol...@gmail.comwrote: http://www.google.com/support/forum/p/Web+Search/thread?tid=47496ffe5ea01d39hl=en I notice that it works ok on gwt's showcase. Thanks -- Guit: Elegant, beautiful, modular and *production ready* gwt applications. http://code.google.com/p/guit/ -- Guit: Elegant, beautiful, modular and *production ready* gwt applications. http://code.google.com/p/guit/ -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Guit: Elegant, beautiful, modular and *production ready* gwt applications. http://code.google.com/p/guit/ -- 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.
[appengine-java] Handle internal 500 error gracefully
In doc for java: Note: At present, you cannot configure custom error handlers for some error conditions. Specifically, you cannot customize the 404 response page when no servlet mapping is defined for a URL, the 403 quota error page, or the 500 server error page that appears after an App Engine internal error. I vaguely remember a few patches ago, there's a way to specify error page for the 500 internal error? Is it true? If so how to setup the pages? I am starting to see this 500 error more consistently in certain sequence of event (but the log never shows the 500, I suppose this happens before hitting the JVM). Sequence of event: 1. HTTP post that triggers an immediate Task Queue task 2. The Task Queue job is immediately called but timing out (it calls some external URL and can block) 3. The HTTP call in step 1 returns successfully and the client javascript reload the page, thus triggering another request. This request triggers the 500 error. I am guessing request #3 give 500 because the server is busy on #2 and app engine couldn't spin up another instance? I am setting the queue delay to 10 seconds and see if this will alleviate the problem. -- 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.
[appengine-java] Re: recommendation on using maxmind geoip
@Ikai , thank you for responding. I noticed your blog before posting here. one question, which will faster performance, put the binary in blockstore and read with new File(..) or use import csv into datastore like what you did ? -- 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.
[appengine-java] Re: recommendation on using maxmind geoip
@Ikai , thank you for responding. I noticed your blog before posting here. one question, which will faster performance, put the binary in blockstore and read with new File(..) or use import csv into datastore like what you did ? -- 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.
[appengine-java] java.io.RandomAccessFile BlockStore
may i know how to use java.io.RandomAccessFile to read big file from BlockStore ? -- 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.
[appengine-java] Re: uploaded file how to view in browser
Hi.. Thanks lot for ur reply response.setContentType(application/pdf); response.setHeader(Content-disposition,inline; filename=test.pdf); OutputStream out = response.getOutputStream(); out.write(fileBlob.getBytes()); In this way i was tried... -- 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.
Re: [appengine-java] Re: uploaded file how to view in browser
use Content Type application/octet-stream for download and Content Type application/pdf to view On Tue, Oct 26, 2010 at 9:09 PM, prabu prabuc...@gmail.com wrote: Hi.. Thanks lot for ur reply response.setContentType(application/pdf); response.setHeader(Content-disposition,inline; filename=test.pdf); OutputStream out = response.getOutputStream(); out.write(fileBlob.getBytes()); In this way i was tried... -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- 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.
[appengine-java] Re: recommendation on using maxmind geoip
hello @Ikai, is it required to use mapreduce . why not get the byte stream from blockstore and create new file(..) ? there is no limit on new file(..) and byte[] array in gae right? -- 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.
