[appengine-java] Re: How can I make the session to be held open as long as the user got its browser opened?
You would need to specify a timeout and if there is no activity for that time frame sessions would need to expire. To be safe about expiring sessions and at the same time wanting to keep them alive, what I can suggest is do this : Put a simple ajax call on the page. Make it call your app every 20 minutes. That way the sessions would not expire. Just a suggestion, haven't done anything like that so don't know how good a solution it is. But to get started quick, I would definitely do this. -Nischal On Apr 11, 11:38 am, Daniel wrote: > 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? -- 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.
[appengine-java] Re: How can I make the session to be held open as long as the user got its browser opened?
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? -- 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.
Re: [appengine-java] only allowing local connections to dev server?
I use rinetd. It's a port forwarder. http://www.boutell.com/rinetd/ fabrizio (from android) Il giorno 10/apr/2011 19.57, "Luis Montes" ha scritto: > When running a java webapp in eclipse it seems that I can only connect to > the dev jetty instance from the localhost. Is jetty fired up only bound to > 127.0.0.1? > > I have some mobile wifi devices (android, ipad, etc.) that I'd like to test > with on the LAN but it seems that I'm going to have do some tunneling or > proxying to get things to work. > > I can't find a way to configure networking in the sdk. Is > 127.0.0.1:hardcoded somewhere? > > > Luis > > -- > 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-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.
[appengine-java] -javaagent gets removed from Run Configuration / Arguments in Eclipse
Hi folks, I've mavenized my project for Eclipse Helios as described at http://googlewebtoolkit.blogspot.com/2010/08/how-to-use-google-plugin-for-eclipse.html, and other web sites. And it works, but only for one run. When I run it again, it says: Unable to locate the App Engine agent. Please use dev_appserver, KickStart, or set the jvm flag: "-javaagent:/lib/agent/appengine-agent.jar" When I specify -javaagent again and press Run -- it runs successfully. When I open Run Configuration, I see only -Xmx512m -Dappengine.sdk.root=/home/lazerka/.m2/repository/com/google/appengine/appengine-java-sdk/1.4.3/appengine-java-sdk-1.4.3 (no my -javaagent I've put there earlier). Could you give any insight on this behavior? -- 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.
Re: [appengine-java] Re: How can I make the session to be held open as long as the user got its browser opened?
Please take a look at channel api. Daniel wrote: >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. > >-- >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-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.
[appengine-java] Re: URL Fetch java.io.IOException
Ok, never mind. I removed the con.setRequestProperty("Content-
Length",...) in the offending code and that solved my problem.
Thanks!
Stefan
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[appengine-java] Re: HTTP POST failing in dev environment with SDK 1.4.3
Could be related to issue http://code.google.com/p/googleappengine/issues/detail?id=4823 -- 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.
[appengine-java] Re: URL Fetch java.io.IOException
Hi Thomad and Z,
could one of you describe what you did? Do you simply mean that you
remove this line:
con.setRequestProperty("Content-Length", "" +
Integer.toString(urlParameters.getBytes().length));
For what it's worth: I think this is related to issue 4823 (though the
title seems to suggest it is only concerned with https):
http://code.google.com/p/googleappengine/issues/detail?id=4823
Best regards,
Stefan
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[appengine-java] Server Error(500) problem
Hi, I have an error Server Error(500) in my application, it happens only for one entity out of three. I did a search and see that it is very common and usually the developer gives its application-id and people of google fix the problem. What should I do in my case? Thanks 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-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.
[appengine-java] Owned relationship. Lost reference
I have a Recipe entity that contains two images:
@PersistenceCapable(identityType = IdentityType.APPLICATION, detachable="true")
public class Recipe {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private MyImage myImage; // full-size image
@Persistent
private MyImage thumb; // 224x230 thumbnail version of the above
When I persist this to the datastore, the images are stored correctly.
However the issue comes when I try referencing the images using
`.getMyImage()` and `.getThumb()`.
They both point to the same object even though I can see in the
datastore viewer that they are two images of different size. If they
are stored in the datastore corretly this means that there's an issue
with how I reference the object I suppose. Why is this?
This is the object I persist, and as you can see the `myImage` and
`thumb` objects are different (not showing the code for them, but
trust me they are).
Recipe recipe = new Recipe(user.getKey(), title, new Text(content),
myImage, thumb, tagsAsStrings);
Any ideas why I keep on referencing the same object?
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[appengine-java] only allowing local connections to dev server?
When running a java webapp in eclipse it seems that I can only connect to the dev jetty instance from the localhost. Is jetty fired up only bound to 127.0.0.1? I have some mobile wifi devices (android, ipad, etc.) that I'd like to test with on the LAN but it seems that I'm going to have do some tunneling or proxying to get things to work. I can't find a way to configure networking in the sdk. Is 127.0.0.1:hardcoded somewhere? Luis -- 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.
[appengine-java] Re: Weird 500 Internal Server Error nginx/0.7.67
rml, Thanks for reply, but issue still exists. Our investigation showed that it only happens when the post size exceed ~40K bytes. If you do not have any issue like this, can you make any suggestions about why this happens when I try to post to an url that starts with my custom domain rather than I do with appspot.com url? So maybe we can fix on that. 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-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.
[appengine-java] Failed to compile jsp files.
My project works fine in local server. But when I upload my project to GAE, there is an error: How to solve the problem Regards Creating staging directory Scanning for jsp files. Compiling jsp files. com.google.appengine.tools.admin.JspCompilationException: Failed to compile jsp files. 2011/4/10 下午 08:45:11 org.apache.jasper.compiler.AntCompiler generateClass 嚴重的: Error compiling file: C:\DOCUME~1\WuEric\LOCALS~1\Temp \appcfg7905816927184108608.tmp\WEB-INF\classes\org\apache\jsp \match_jsp.java [javac] Compiling 1 source file 2011/4/10 下午 08:45:11 org.apache.jasper.compiler.AntCompiler generateClass 嚴重的: Javac exception Error running javac.exe compiler at org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExternalCompile(DefaultCompilerAdapter.java: 473) at org.apache.tools.ant.taskdefs.compilers.JavacExternal.execute(JavacExternal.java: 47) at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:931) at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:757) at org.apache.jasper.compiler.AntCompiler.generateClass(AntCompiler.java: 226) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:349) at org.apache.jasper.JspC.processFile(JspC.java:1192) at org.apache.jasper.JspC.execute(JspC.java:1341) at com.google.appengine.tools.development.LocalJspC.main(LocalJspC.java: 18) Caused by: java.io.IOException: Cannot run program "javac.exe": CreateProcess error=2, ?t?Χ?? at java.lang.ProcessBuilder.start(Unknown Source) at java.lang.Runtime.exec(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.tools.ant.taskdefs.Execute $Java13CommandLauncher.exec(Execute.java:834) at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:435) at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:449) at org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExternalCompile(DefaultCompilerAdapter.java: 470) ... 8 more Caused by: java.io.IOException: CreateProcess error=2, ?t?Χ?? at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 18 more --- Nested Exception --- java.io.IOException: Cannot run program "javac.exe": CreateProcess error=2, ?t?Χ?? at java.lang.ProcessBuilder.start(Unknown Source) at java.lang.Runtime.exec(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.tools.ant.taskdefs.Execute $Java13CommandLauncher.exec(Execute.java:834) at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:435) at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:449) at org.apache.tools.ant.taskdefs.compilers.DefaultCompilerAdapter.executeExternalCompile(DefaultCompilerAdapter.java: 470) at org.apache.tools.ant.taskdefs.compilers.JavacExternal.execute(JavacExternal.java: 47) at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:931) at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:757) at org.apache.jasper.compiler.AntCompiler.generateClass(AntCompiler.java: 226) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:349) at org.apache.jasper.JspC.processFile(JspC.java:1192) at org.apache.jasper.JspC.execute(JspC.java:1341) at com.google.appengine.tools.development.LocalJspC.main(LocalJspC.java: 18) Caused by: java.io.IOException: CreateProcess error=2, ?t?Χ?? at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 18 more 2011/4/10 下午 08:45:11 org.apache.jasper.compiler.AntCompiler generateClass 嚴重的: Environment: Compile: javaFileName=C:\DOCUME~1\WuEric \LOCALS~1\Temp\appcfg7905816927184108608.tmp\WEB-INF\classes\org\apache \jsp\match_jsp.java classpath=/D:/java_sdk/appengine-java-sdk-1.4.3/lib/impl/appengine- api-labs.jar;/D:/java_sdk/appengine-java-sdk-1.4.3/lib/impl/appengine- api-stubs.jar;/D:/java_sdk/appengine-java-sdk-1.4.3/lib/impl/appengine- api.jar;/D:/java_sdk/appengine-java-sdk-1.4.3/lib/impl/appengine-local- runtime.jar;D:\java_sdk\appengine-java-sdk-1.4.3\lib\shared\appengine- local-runtime-shared.jar;D:\java_sdk\appengine-java-sdk-1.4.3\lib \shared\el-api.jar;D:\java_sdk\appengine-java-sdk-1.4.3\lib\shared\jsp \repackaged-appengine-ant-1.7.
[appengine-java] Re: How can I make the session to be held open as long as the user got its browser opened?
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? -- 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.
[appengine-java] Re: Weird 500 Internal Server Error nginx/0.7.67
We use Nginx with SLL to proxy to our GAE application and don't have any issue with multipart/form-data posts. You may find this useful: http://radomirml.com/2011/01/30/reverse-proxy-for-gae-application-using-nginx-and-ssl On Apr 10, 4:31 am, miglate wrote: > Hi I have just found out that this error occurs when I use my custom domain. > If I use appspot.com, no error is given. Is this a bug of GAE or is there a > problem with nginx? > > I'd really like someone from Google check this issue. > > Thanks 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-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.
[appengine-java] Re: How can I make the session to be held open as long as the user got its browser opened?
have you tried to use memcache or simply store session into datastore? -- 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.
[appengine-java] Re: How to model object with lots of small properties
Hi,
You should use an enum class for the properties (so that you can
extend later on) and store them as proposed above in a Set<>
regards
didier
On Apr 10, 8:29 am, Ravi Sharma wrote:
> May be you can do womething like this
>
> class HouseProperty{
> Key id;
> String Name;}
>
> in above class you can create your all properties like
> hasAirCond,hasInternet etc. One property
> per Row.
> and in House you can have somethin glike this
> class House{
> Set properties;
>
> }
>
> and if some house has airCond, then add one key to this collection
> house.properties.add();
>
> if some house has two or more then
> house.properties.add();
> house. properties.add();
> house. properties.add();
>
> If you do like this, you dont need to worry about increasing the table
> columns later as you will be doing in your current solution. If new
> prooperty of a house comes just add another row and your solution will keep
> working.
>
> Thanks,
> Ravi.
>
> On Sun, Apr 10, 2011 at 7:22 AM, Thomas Wiradikusuma
> > wrote:
> > Hi guys,
>
> > I want to model an object with lots of small properties, e.g.:
>
> > House {
> > boolean hasAirCond, boolean hasInternet, boolean nearSchool, etc;
> > }
>
> > Is this naive way the best way to model it? Is there any better "GAE-
> > way" to do this?
>
> > --
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>
>
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