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  • data loading - app launching on tableview

    - by wallou
    hi, i encounter an issue with my application. On one hand when my app launches, the first view displayed is a tableview within a tableviewcontroller. On the other hand my app calls a web service to collect data. These methods are in MyAppDelegate\applicationDidFinishLaunching. The thing is that my tableview is made of custom cells that need data from the web service. I noticed that the view (with the tableview) is launched first and then MyAppDelegate\applicationDidFinishLaunchin is executed. As a result the labels of my custom cells are all equal to null as my arrays aren't filled yet by the web service. I would like to know the proper way to make it. If anyone has an idea please tell me. Wallou

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  • iPhone App/Java Server Struct Data Issue over WiFi

    - by adimitri
    I currently have an iPhone app that communicates with a C++ server running on a computer, over WiFi. This app is sending its data (x,y coordinates) in a c-struct to the server. For further development, we would like the iPhone application to communicate directly with a java server, however the major issue is that java does not have the ability to emulate or use a c-struct. What would be the best way to send data (x,y coordinates) between the two devices? I can already establish a connection between the two devices. More specifically how I would receive the data and process it on the Java end. Thanks for your help, Alex

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  • App shuts down when pushing UIbutton!

    - by maralbjo
    For reasons unknown my app shuts down upon pressing a UIButton in the simulator. I have dynamically added my UIView, if that is of relevance. No tracelog or debug information just a rush exit... This is the simple code (.m-file): - (IBAction) testButtonPressed: (id) sender{ NSLog (@"Testbutton pressed."); } From the header file: - (IBAction) testButtonPressed: (id) sender; Pretty basic stuff, but for some reason the app terminates. Help!

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  • Creative an interactive GUI for a web application

    - by user2125844
    I have to create a web application (preferably using the Google App Engine) that will allow users to access it through a url link (not a Desktop application). The application graphically looks like a flow chart and each item in the chart can be selected to pull up a video (not in another window). It is recommended that I use Python. I have never made anything for the web before. Is there a best Python GUI API I should use? I've read quite a bit about Django so far I'm not sure if it is the best fit for this or not. Does anyone have any tips for starting this project? Thanks in advance!

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  • How to fork my android app?

    - by eidylon
    So I've written my first Android app, ... and want to be able to provide both free and paid versions. I wrote and compiled it in Eclipse on Windows. I'm wondering if it is possible, and how I would go about doing so, to have separate compile jobs somehow, so that I can maintain my free and paid versions from one set of source code, and just leave out certain bits for the paid version, but keep the main source the same. What are the recommended ways/best practices for devving a paid and free version of the same app from one set of source? Is it even possible?

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  • Google AppEngine java.net.Socket is restricted error

    - by ofko
    I'm using Quercus/PHP on AppEngine. When I run a simple script with file_get_contents($url); I get an error: java.lang.NoClassDefFoundError: java.net.Socket is a restricted class. Please see the Google App Engine developer's guide for more details. I've googled and although I find that other's have run into the same error, but the cause seems the vary. What do you think is cousing this error for me? I'm using the latest AppEngine Java SDK, and the latest Quercus.

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  • Ubuntu 10.04 - unable to install Arduino

    - by Newbie
    Hello! At the moment, I try to install Arduino on my Ubuntu 10.04 (32 Bit) computer. I downloaded the latest release at http://arduino.cc/en/Main/Software, cd'ed to the directory and unziped the package. When I try to run ./arduino , I get following error: Exception in thread "main" java.lang.ExceptionInInitializerError at processing.app.Base.main(Base.java:112) Caused by: java.awt.HeadlessException at sun.awt.HeadlessToolkit.getMenuShortcutKeyMask(HeadlessToolkit.java:231) at processing.core.PApplet.<clinit>(Unknown Source) ... 1 more Here is my java -version output: java version "1.6.0_20" OpenJDK Runtime Environment (IcedTea6 1.9.5) (6b20-1.9.5-0ubuntu1~10.04.1) OpenJDK Server VM (build 19.0-b09, mixed mode) Any suggestions on this? I try to install arduino without the 'arduino' package. I tried to install it with apt-get (sudo apt-get install arduino). When I try to start arduino (using arduino command) will cause following error: Exception in thread "main" java.lang.ExceptionInInitializerError at processing.app.Preferences.load(Preferences.java:553) at processing.app.Preferences.load(Preferences.java:549) at processing.app.Preferences.init(Preferences.java:142) at processing.app.Base.main(Base.java:188) Caused by: java.awt.HeadlessException at sun.awt.HeadlessToolkit.getMenuShortcutKeyMask(HeadlessToolkit.java:231) at processing.core.PApplet.<clinit>(PApplet.java:224) ... 4 more Update: I saw that I installed several versions of jre (sun and open). So I uninstalled the open jre. Now, when calling arduino I get a new error: java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path thrown while loading gnu.io.RXTXCommDriver Exception in thread "main" java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1734) at java.lang.Runtime.loadLibrary0(Runtime.java:823) at java.lang.System.loadLibrary(System.java:1028) at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:123) at processing.app.Editor.populateSerialMenu(Editor.java:965) at processing.app.Editor.buildToolsMenu(Editor.java:717) at processing.app.Editor.buildMenuBar(Editor.java:502) at processing.app.Editor.<init>(Editor.java:194) at processing.app.Base.handleOpen(Base.java:698) at processing.app.Base.handleOpen(Base.java:663) at processing.app.Base.handleNew(Base.java:578) at processing.app.Base.<init>(Base.java:318) at processing.app.Base.main(Base.java:207)

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  • Impossible to do POSTs with appengine-jruby/RoR: Reflection is not allowed

    - by Joel Cuevas
    I'm trying to build a site with RoR on Google App Engine. I'm using the google-appengine gem (http://appengine-jruby.googlecode.com) and following the instructions in (http://gist.github.com/268192). The problem is that I can't submit ANY form! I've already tried this in two diferent clean Win 7 Pro envs and the result is the same. After install Ruby 1.8.6 (One-Click Installer): 1. gem update --system 2. gem install rails 3. gem install google-appengine 4. gem install rails_dm_datastore 5. gem install activerecord-nulldb-adapter 6. curl -O http://appengine-jruby.googlecode.com/hg/demos/rails2/rails2_appengine.rb 7. ruby rails2_appengine.rb (previously downloaded) 8. rails myproj 9. chmod myproj 10. ruby script/generate dd_model MyModel f1:string f2:float f3:float f4:float f5:integer f6:integer f7:integer -f 11. ruby script/generate scaffold MyModel f1:string f2:float f3:float f4:float f5:integer f6:integer f7:integer -f --skip-migration 12. dev_appserver.rb -p 3000 . At this point, I manually test the scaffold in (http://localhost:3000/my_models). The index is OK, then I create a new registry with the generated form, everything's fine, but when I try to create a second one, I get a "java.lang.RuntimeException: DummyDynamicScope should never be used for backref storage" in the console. As far as I read this is a won't-fix behavior in JRuby 1.4.1, but it's converted to a debug only warning in 1.5.0, so I proceed to install the pre release. 13. gem install appengine-jruby-jars --pre With this, that exception is solved and everything works great... until I move the project to the GAE server. 14. ruby appcfg.rb update . And now, in (http://myproj.appspot.com/my_models), again, the index is fine, also the new form, but in the moment that I submit it with valid data, I get a 500 error: "java.lang.IllegalAccessException: Reflection is not allowed on public int". As I said, this behavior is not present in the local SDK. In both cases, I'm completely unable to post anything. This is what I have right now in the GAE environment: Ruby version 1.8.7 (java) RubyGems disabled Rack version 1.1 Rails version 2.3.5 Action Pack version 2.3.5 Active Support version 2.3.5 DataMapper version 0.10.2 Environment production JRuby Runtime version 1.5.0.pre JRuby-Rack version 0.9.7 AppEngine SDK version Google App Engine/1.3.3 AppEngine APIs version 0.0.15 And this are my intalled gems: actionmailer (2.3.5) actionpack (2.3.5) activerecord (2.3.5) activerecord-nulldb-adapter (0.2.0) activeresource (2.3.5) activesupport (2.3.5) addressable (2.1.2) appengine-apis (0.0.15) appengine-jruby-jars (0.0.8.pre, 0.0.7) appengine-rack (0.0.8) appengine-sdk (1.3.3.1) appengine-tools (0.0.12) bundler08 (0.8.5) dm-appengine (0.0.8) dm-ar-finders (0.10.2) dm-core (0.10.2) dm-timestamps (0.10.2) dm-validations (0.10.2) extlib (0.9.14) fxri (0.3.7, 0.3.6) google-appengine (0.0.12) hpricot (0.8.2 x86-mswin32, 0.6 mswin32) jruby-rack (0.9.8, 0.9.7) log4r (1.1.7, 1.0.5) rack (1.1.0, 1.0.1) rails (2.3.5) rails_appengine (0.0.3) rails_dm_datastore (0.2.9) rake (0.8.7, 0.7.3) rubygems-update (1.3.7, 1.3.6) rubyzip (0.9.4) sources (0.0.1) win32-api (1.4.6 x86-mswin32-60, 1.0.4 mswin32) win32-clipboard (0.5.2, 0.4.3) win32-dir (0.3.6, 0.3.2) win32-eventlog (0.5.2, 0.4.6) win32-file (0.6.3, 0.5.4) win32-file-stat (1.3.4, 1.2.7) win32-process (0.6.2, 0.5.3) win32-sapi (0.1.5, 0.1.4) win32-sound (0.4.2, 0.4.1) windows-api (0.4.0, 0.2.0) windows-pr (1.0.9, 0.7.2) I'm unable to attach the full logs of the exceptions because of the character limits, but I can provide them under request. Here's an abstract of them: DummyDynamicScope (dev and prod envs): 14-may-2010 7:18:40 com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1273821520195000] javax.servlet.ServletContext log: Application Error java.lang.RuntimeException: DummyDynamicScope should never be used for backref storage at org.jruby.runtime.scope.DummyDynamicScope.getBackRef(DummyDynamicScope.java:49) at org.jruby.RubyRegexp.updateBackRef(RubyRegexp.java:1404) at org.jruby.RubyRegexp.updateBackRef(RubyRegexp.java:1396) at org.jruby.RubyRegexp.search(RubyRegexp.java:1386) at org.jruby.RubyRegexp.op_match(RubyRegexp.java:1301) at org.jruby.RubyString.op_match(RubyString.java:1446) at org.jruby.RubyString$i_method_1_0$RUBYINVOKER$op_match.call(org/jruby/RubyString$i_method_1_0$RUBYINVOKER$op_match.gen) at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodOneOrN.call(JavaMethod.java:721) at org.jruby.RubyClass.finvoke(RubyClass.java:472) at org.jruby.RubyObject.send(RubyObject.java:1442) at org.jruby.RubyObject$i_method_multi$RUBYINVOKER$send.call(org/jruby/RubyObject$i_method_multi$RUBYINVOKER$send.gen) at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodZeroOrOneOrTwoOrNBlock.call(JavaMethod.java:276) at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:330) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:189) at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with_comparison at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with_comparison at org.jruby.internal.runtime.methods.JittedMethod.call(JittedMethod.java:102) at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:144) at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:280) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:69) at org.jruby.ast.FCallManyArgsNode.interpret(FCallManyArgsNode.java:60) at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104) at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:229) at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:193) at org.jruby.RubyClass.finvoke(RubyClass.java:491) at org.jruby.RubyObject.send(RubyObject.java:1448) at org.jruby.RubyObject$i_method_multi$RUBYINVOKER$send.call(org/jruby/RubyObject$i_method_multi$RUBYINVOKER$send.gen) at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodZeroOrOneOrTwoOrThreeOrNBlock.call(JavaMethod.java:293) at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:350) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:229) at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with28985350_50 at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with28985350_50 at org.jruby.internal.runtime.methods.JittedMethod.call(JittedMethod.java:221) at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:201) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:227) at org.jruby.ast.FCallThreeArgNode.interpret(FCallThreeArgNode.java:40) Reflection (only prod env): Java::JavaLang::SecurityException (java.lang.IllegalAccessException: Reflection is not allowed on public int java.lang.String$CaseInsensitiveComparator.compare(java.lang.String,java.lang.String)): com.google.appengine.runtime.Request.process-92563a0605f433ea(Request.java) java.lang.reflect.AccessibleObject.setAccessible(AccessibleObject.java:40) org.jruby.javasupport.JavaMethod.<init>(JavaMethod.java:176) org.jruby.javasupport.JavaMethod.create(JavaMethod.java:183) org.jruby.java.invokers.MethodInvoker.createCallable(MethodInvoker.java:23) org.jruby.java.invokers.RubyToJavaInvoker.<init>(RubyToJavaInvoker.java:63) org.jruby.java.invokers.MethodInvoker.<init>(MethodInvoker.java:13) org.jruby.java.invokers.InstanceMethodInvoker.<init>(InstanceMethodInvoker.java:15) org.jruby.javasupport.JavaClass$InstanceMethodInvokerInstaller.install(JavaClass.java:339) org.jruby.javasupport.JavaClass.installClassMethods(JavaClass.java:723) org.jruby.javasupport.JavaClass.setupProxy(JavaClass.java:586) org.jruby.javasupport.Java.createProxyClass(Java.java:506) org.jruby.javasupport.Java.getProxyClass(Java.java:445) org.jruby.javasupport.Java.getInstance(Java.java:354) org.jruby.javasupport.JavaUtil.convertJavaToUsableRubyObject(JavaUtil.java:143) org.jruby.javasupport.JavaClass$ConstantField.install(JavaClass.java:360) org.jruby.javasupport.JavaClass.installClassFields(JavaClass.java:711) org.jruby.javasupport.JavaClass.setupProxy(JavaClass.java:585) org.jruby.javasupport.Java.createProxyClass(Java.java:506) org.jruby.javasupport.Java.getProxyClass(Java.java:445) org.jruby.javasupport.Java.getProxyOrPackageUnderPackage(Java.java:885) org.jruby.javasupport.Java.get_proxy_or_package_under_package(Java.java:918) org.jruby.javasupport.JavaUtilities.get_proxy_or_package_under_package(JavaUtilities.java:54) org.jruby.javasupport.JavaUtilities$s_method_2_0$RUBYINVOKER$get_proxy_or_package_under_package.call(org/jruby/javasupport/JavaUtilities$s_method_2_0$RUBYINVOKER$get_proxy_or_package_under_package.gen:65535) org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:329) org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:188) org.jruby.ast.CallTwoArgNode.interpret(CallTwoArgNode.java:59) org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104) org.jruby.ast.BlockNode.interpret(BlockNode.java:71) org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:113) org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:138) org.jruby.javasupport.util.RuntimeHelpers$MethodMissingMethod.call(RuntimeHelpers.java:389) org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:182) What should I do now? Any hint would be wellcome. Thanks!

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  • grails run-war connects to mysql but grails run-war doesn't

    - by damian
    Hi, I have a unexpected problem. I had create a war with grails war. Then I had deployed in Tomcat. For my surprise the crud works fine but I don't know what persistence is using. So I did this test: Compare grails prod run-app with grails prod run-war. The first works fine, and does conect with the mysql database. The other don't. This is my DataSource.groovy: dataSource { pooled = true driverClassName = "com.mysql.jdbc.Driver" username = "grails" password = "mysqlgrails" } hibernate { cache.use_second_level_cache=false cache.use_query_cache=false cache.provider_class='net.sf.ehcache.hibernate.EhCacheProvider' } // environment specific settings environments { development { dataSource { dbCreate = "update" // one of 'create', 'create-drop','update' url = "jdbc:mysql://some-key.amazonaws.com/MyDB" } } test { dataSource { dbCreate = "update" // one of 'create', 'create-drop','update' url = "jdbc:mysql://some-key.amazonaws.com/MyDB" } } production { dataSource { dbCreate = "update" url = "jdbc:mysql://some-key.amazonaws.com/MyDB" } } } Also I extract the war to see if I could find some data source configuration file without success. More info: Grails version: 1.2.1 JVM version: 1.6.0_17 Also I think this question it's similar, but doesn't have a awnser.

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  • Guice and JSF 2

    - by digitaljoel
    I'm trying to use Guice to inject properties of a JSF managed bean. This is all running on Google App Engine (which may or may not be important) I've followed the instructions here: http://code.google.com/docreader/#p=google-guice&s=google-guice&t=GoogleAppEngine One problem is in the first step. I can't subclass the Servlet module and setup my servlet mappings there because Faces is handled by the javax.faces.webapp.FacesServlet which subclasses Servlet, not HttpServlet. So, I tried leaving my servlet configuration in the web.xml file and simply instantiating a new ServletModel() along with my business module when creating the injector in the context listener described in the second step. Having done all that, along with the web.xml configuration, my managed bean isn't getting any properties injected. The method is as follows @ManagedBean @ViewScoped public class ViewTables implements Serializable { private DataService<Table> service; @Inject public void setService( DataService<Table> service ) { this.service = service; } public List<Table> getTables() { return service.getAll(); } } So, I'm wondering if there is a trick to get Guice injecting into a JSF managed bean? I obviously can't use the constructor injection because JSF needs a no-arg constructor to create the bean.

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  • UIViewerTableViewController.m:15: error: expected identifier before '*' token

    - by Aaron Levin
    I am new to objective-c programming. I come from a C# background. I am having problems with the following code I am writing for a proof of concept for an iPhone App: I am getting a number of compile errors but I think they are all due to the first error (could be wrong) - error: expected identifier before '*' token (@synthesize *lists; in the .m file) I'm not sure why my code is showing up the way it is in the view below the editor..hmm any way, any help would be appreciated. .m file // // Created by Aaron Levin on 4/19/10. // Copyright 2010 RonStan. All rights reserved. // import "UIViewerTableViewController.h" @implementation UIViewerTableViewController @synthesize *lists; @synthesize *icon; (void)dealloc { [Lists release]; [super dealloc]; } pragma mark Table View Methods //Customize number of rows in table view (NSInteger)tableView:(UITableView *) tableView numberOfRowsInSection: (NSInteger) section{ return self.Lists.Count; } //Customize the appearence of table view cells (UITableViewCell *) tableView(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *) indexPath{ static NSString *CellIdentifier = @"Cell"; UITableView *Cell = [tablevView dequeueReusableCellWithIdentifier:CellIdentifier]; if(cell == nil){ cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } cell.textLabel.text = [[self.Lists objectAtIndex:indexPath.row] retain]; cell.imageView = self.Icon; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } @end .h file // // UIMyCardsTableViewController.h // MCS ProtoType v0.1 // // Created by Aaron Levin on 4/19/10. // Copyright 2010 RonStan. All rights reserved. // import @interface UIViewerTableViewController : UITableViewController { NSArray *lists; UIImage *icon; } @property (nonatomic,retain) NSArray *lists; @property (nonatomic,retain) UIImage *icon; @end

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  • Java Appengine APPSTATS causing java out of memory error

    - by aloo
    I have several servlets in my java appengine app that do in memory sorting and take on the order of seconds to complete. These complete error free. However, I recently enabled appstats for appengine and started receiving the following error: java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Unknown Source) at java.lang.AbstractStringBuilder.expandCapacity(Unknown Source) at java.lang.AbstractStringBuilder.append(Unknown Source) at java.lang.StringBuilder.append(Unknown Source) at java.lang.StringBuilder.append(Unknown Source) at java.lang.StringBuilder.append(Unknown Source) at com.google.appengine.repackaged.com.google.protobuf.TextFormat$TextGenerator.write(TextFormat.java:344) at com.google.appengine.repackaged.com.google.protobuf.TextFormat$TextGenerator.print(TextFormat.java:332) at com.google.appengine.repackaged.com.google.protobuf.TextFormat.printUnknownFields(TextFormat.java:249) at com.google.appengine.repackaged.com.google.protobuf.TextFormat.print(TextFormat.java:47) at com.google.appengine.repackaged.com.google.protobuf.TextFormat.printToString(TextFormat.java:73) at com.google.appengine.tools.appstats.Recorder.makeSummary(Recorder.java:157) at com.google.appengine.tools.appstats.Recorder.makeSyncCall(Recorder.java:239) at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:98) at com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java:54) at com.google.appengine.api.datastore.PreparedQueryImpl.runQuery(PreparedQueryImpl.java:127) at com.google.appengine.api.datastore.PreparedQueryImpl.asQueryResultList(PreparedQueryImpl.java:81) at org.datanucleus.store.appengine.query.DatastoreQuery.fulfillEntityQuery(DatastoreQuery.java:379) at org.datanucleus.store.appengine.query.DatastoreQuery.executeQuery(DatastoreQuery.java:289) at org.datanucleus.store.appengine.query.DatastoreQuery.performExecute(DatastoreQuery.java:239) at org.datanucleus.store.appengine.query.JDOQLQuery.performExecute(JDOQLQuery.java:89) at org.datanucleus.store.query.Query.executeQuery(Query.java:1489) at org.datanucleus.store.query.Query.executeWithArray(Query.java:1371) at org.datanucleus.jdo.JDOQuery.execute(JDOQuery.java:243) at com.poo.pooserver.dataaccess.DataAccessHelper.getPooStream(DataAccessHelper.java:204) at com.poo.pooserver.GetPooStreamServlet.doPost(GetPooStreamServlet.java:58) 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$CachedChain.doFilter(ServletHandler.java:1166) at com.google.appengine.tools.appstats.AppstatsFilter.doFilter(AppstatsFilter.java:92) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)

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  • Java 1.5 crypto on OS X - AccessControlException

    - by bpapa
    I'm trying to do a Google App Engine project on OS X (latest and greatest). I'm using classes from javax.crypto, and I'm seeing an AccessControlException thrown when I try to initialize an instance of the Mac class. Here's the stack trace: WARNING: Nested in java.lang.ExceptionInInitializerError: java.security.AccessControlException: access denied (java.lang.RuntimePermission loadLibrary.keychain) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264) at java.security.AccessController.checkPermission(AccessController.java:427) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:76) at java.lang.SecurityManager.checkLink(SecurityManager.java:818) at java.lang.Runtime.loadLibrary0(Runtime.java:816) at java.lang.System.loadLibrary(System.java:993) at com.apple.crypto.provider.HmacCore.<clinit>(HmacCore.java:26) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at java.lang.Class.newInstance0(Class.java:350) at java.lang.Class.newInstance(Class.java:303) at java.security.Provider$Service.newInstance(Provider.java:1130) at javax.crypto.Mac.a(DashoA12275) at javax.crypto.Mac.init(DashoA12275) Any ideas on 1 - what went wrong and how fix it 2 - if it's not fixable (I know Apple has not been the best supporter of Java in recent years), what's an alternative approach?

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  • Why doesn't my android application show up in the launcher?

    - by rushinge
    I'm developing an application for the Android platform targeted for api level 4 (Android 1.6) but I can't get it to show up on my phone and I can't figure out why. Here's my AndroidManifest.xml is there a problem in here? Or is there something else I should be looking at? <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.sbe.app.hellocogen" android:versionCode="1" android:versionName="1.0"> <uses-permission android:name="android.permission.INTERNET" /> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".activity.ListPlants" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".activity.AddPlant" android:label="Add Plant"> <intent-filter> <action android:name="android.intent.action.VIEW"/> <category android:name="android.intent.category.DEFAULT"/> </intent-filter> </activity> <activity android:name=".activity.UnitActivity" android:label="IP HERE, PLANT NAME"> <intent-filter> <action android:name="android.intent.action.VIEW"/> <category android:name="android.intent.category.DEFAULT"/> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="4"/> </manifest> When I started this application it didn't show up but I fixed it by setting the minimum api level to 4 instead of 7 then it started showing up but now it stopped showing up again and I don't know why.

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  • google appengine local datastore integration testing with spring

    - by mirror303
    Hi all, I want to write some integration tests to see how my spring-managed DAO's behave when talking to the appengine datastore. Following the spring manual I will be providing my test-classes with the proper annotations: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = { "classpath:applicationContext.xml" }) After a lot of browsing I found this blog post dating back to august '09 from somebody doing exactly what I want to achieve. It involves writing a TestEnvironment class that implements ApiProxy.Environment plus talking to ApiProxyLocalImpl. However, if I look at the current docs (for version 1.3.1), it seems that this has been replaced by newing an instance of the framework provided LocalDatastoreServiceTestConfig which is passed to a LocalServiceTestHelper. It is too bad that the appengine docs don't show an example how to do this with JPA because then the spring wiring would be trivial. Trying to follow the route outlined in the blog posting has me running into a compiler messages telling me that classes such as ApiProxyLocalImpl are not visible by me. Hence, there must be a new way of doing it, which probably involves the LocalServiceTestHelper. My question: Does anybody know how? I know I will need to configure an EntityManagerFactory and provide it with the Datastore connection somehow... but how? :)

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  • GAE AttributeError

    - by awegawef
    My GAE app runs fine from my computer, but when I upload it, I start getting an AttributeError, specifically: AttributeError: 'dict' object has no attribute 'item' I am using the pylast interface (an API for last.fm--link). Specifically, I am accessing a list of variables of this type: SimilarItem = _namedtuple("SimilarItem", ["item", "match"]) I have a variable of this type, call it sim, and I am trying to access sim.item when I get the attribute error. I should note that I am using Python 2.6 on my computer, and I understand that GAE runs on Python 2.5. Would that make a difference here? I thought they were backwards-compatible. Lastly, I think it could be a possible problem with the modules that pylast imports--maybe they don't work with GAE or something? I did some research but I didn't get any results. Here are the imports: import hashlib import httplib import urllib import threading from xml.dom import minidom import xml.dom import time import shelve import tempfile import sys import htmlentitydefs I would appreciate any help with this frustrating issue. Thanks in advance.

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  • appengine local datastore integration testing with spring

    - by mirror303
    Hi all, I want to write some integration tests to see how my spring-managed DAO's behave when talking to the appengine datastore. Following the spring manual I will be providing my test-classes with the proper annotations: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = { "classpath:applicationContext.xml" }) After a lot of browsing I found this blog post dating back to august '09 from somebody doing exactly what I want to achieve. It involves writing a TestEnvironment class that implements ApiProxy.Environment plus talking to ApiProxyLocalImpl. However, if I look at the current docs (for version 1.3.1), it seems that this has been replaced by newing an instance of the framework provided LocalDatastoreServiceTestConfig which is passed to a LocalServiceTestHelper. It is too bad that the appengine docs don't show an example how to do this with JPA because then the spring wiring would be trivial. Trying to follow the route outlined in the blog posting has me running into a compiler messages telling me that classes such as ApiProxyLocalImpl are not visible by me. Hence, there must be a new way of doing it, which probably involves the LocalServiceTestHelper. My question: Does anybody know how? I know I will need to configure an EntityManagerFactory and provide it with the Datastore connection somehow... but how? :)

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  • How to resolve a java.security.AccessControlException?

    - by thisisananth
    I have written an SAX parser in my Google App Engine Web application. in that I try to validate my xml file with an xsd. But I am getting an access control exception when my code is tyring to access that xsd. java.security.AccessControlException: access denied (java.io.FilePermission \WEB-INF\ApplicationResponse.xsd read) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264) at java.security.AccessController.checkPermission(AccessController.java:427) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:166) at java.lang.SecurityManager.checkRead(SecurityManager.java:871) at java.io.FileInputStream.(FileInputStream.java:100) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.xsdToXMLInputSource(XMLSchemaLoader.java:830) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.processJAXPSchemaSource(XMLSchemaLoader.java:708) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:554) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.findSchemaGrammar(XMLSchemaValidator.java:2459) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1807) at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:705) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:330) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1794) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242) at sax.SAXLocalNameCount.parse(SAXLocalNameCount.java:220) at com.sms2mint.InterfaceServlet.doGet(InterfaceServlet.java:54) Please let me know how to debug this? I have tried to place the xsd in classes, webcontent, /WEB-INF but didn't help. Also declared this as a resource file in appengine-web.xml also but no avail.

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  • Set-Cookie error appearing in logs when deployed to google appengine

    - by Jesse
    I have been working towards converting one of our applications to be threadsafe. When testing on the local dev app server everything is working as expected. However, upon deployment of the application it seems that Cookies are not being written correctly? Within the logs there is an error with no stack trace: 2012-11-27 16:14:16.879 Set-Cookie: idd_SRP=Uyd7InRpbnlJZCI6ICJXNFdYQ1ZITSJ9JwpwMAou.Q6vNs9vGR-rmg0FkAa_P1PGBD94; expires=Wed, 28-Nov-2012 23:59:59 GMT; Path=/ Here is the block of code in question: # area of the code the emits the cookie cookie = Cookie.SimpleCookie() if not domain: domain = self.__domain self.__updateCookie(cookie, expires=expires, domain=domain) self.__updateSessionCookie(cookie, domain=domain) print cookie.output() Cookie helper methods: def __updateCookie(self, cookie, expires=None, domain=None): """ Takes a Cookie.SessionCookie instance an updates it with all of the private persistent cookie data, expiry and domain. @param cookie: a Cookie.SimpleCookie instance @param expires: a datetime.datetime instance to use for expiry @param domain: a string to use for the cookie domain """ cookieValue = AccountCookieManager.CookieHelper.toString(self.cookie) cookieName = str(AccountCookieManager.COOKIE_KEY % self.partner.pid) cookie[cookieName] = cookieValue cookie[cookieName]['path'] = '/' cookie[cookieName]['domain'] = domain if not expires: # set the expiry date to 1 day from now expires = datetime.date.today() + datetime.timedelta(days = 1) expiryDate = expires.strftime("%a, %d-%b-%Y 23:59:59 GMT") cookie[cookieName]['expires'] = expiryDate def __updateSessionCookie(self, cookie, domain=None): """ Takes a Cookie.SessionCookie instance an updates it with all of the private session cookie data and domain. @param cookie: a Cookie.SimpleCookie instance @param expires: a datetime.datetime instance to use for expiry @param domain: a string to use for the cookie domain """ cookieValue = AccountCookieManager.CookieHelper.toString(self.sessionCookie) cookieName = str(AccountCookieManager.SESSION_COOKIE_KEY % self.partner.pid) cookie[cookieName] = cookieValue cookie[cookieName]['path'] = '/' cookie[cookieName]['domain'] = domain Again, the libraries in use are: Python 2.7 Django 1.2 Any suggestion on what I can try?

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  • HttpError 502 with Google Wave Active Robot API fetch_wavelet()

    - by Drew LeSueur
    I am trying to use the Google Wave Active Robot API fetch_wavelet() and I get an HTTP 502 error example: from waveapi import robot import passwords robot = robot.Robot('gae-run', 'http://images.com/fake-image.jpg') robot.setup_oauth(passwords.CONSUMER_KEY, passwords.CONSUMER_SECRET, server_rpc_base='http://www-opensocial.googleusercontent.com/api/rpc') wavelet = robot.fetch_wavelet('googlewave.com!w+dtuZi6t3C','googlewave.com!conv+root') robot.submit(wavelet) self.response.out.write(wavelet.creator) But the error I get is this: Traceback (most recent call last): File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/__init__.py", line 511, in __call__ handler.get(*groups) File "/base/data/home/apps/clstff/gae-run.342467577023864664/main.py", line 23, in get robot.submit(wavelet) File "/base/data/home/apps/clstff/gae-run.342467577023864664/waveapi/robot.py", line 486, in submit res = self.make_rpc(pending) File "/base/data/home/apps/clstff/gae-run.342467577023864664/waveapi/robot.py", line 251, in make_rpc raise IOError('HttpError ' + str(code)) IOError: HttpError 502 Any ideas? Edit: When [email protected] is not a member of the wave I get the correct error message Error: RPC Error500: internalError: [email protected] is not a participant of wave id: [WaveId:googlewave.com!w+Pq1HgvssD] wavelet id: [WaveletId:googlewave.com!conv+root]. Unable to apply operation: {'method':'robot.fetchWave','id':'655720','waveId':'googlewave.com!w+Pq1HgvssD','waveletId':'googlewave.com!conv+root','blipId':'null','parameters':{}} But when [email protected] is a member of the wave I get the http 502 error. IOError: HttpError 502

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  • AppEngine JDO-QL : Problem with multiple AND and OR in query

    - by KlasE
    Hi, I'm working with App Engine(Java/JDO) and are trying to do some querying with lists. So I have the following class: @PersistenceCapable(identityType = IdentityType.APPLICATION, detachable="true") public class MyEntity { @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) Key key; @Persistent List<String> tags = new ArrayList<String>(); @Persistent String otherVar; } The following JDO-QL works for me: ( tags.contains('a') || tags.contains('b') || tags.contains('c') || tags.contains('d') ) && otherVar > 'a' && otherVar < 'z' This seem to return all results where tags has one or more strings with one or more of the given values and together with the inequality search on otherVar But the following do not work: (tags.contains('a') || tags.contains('_a')) && (tags.contains('b') || tags.contains('_b')) && otherVar > 'a' && otherVar < 'z' In this case I want all hits where there is at least one a (either a or _a) and one b (either b or _b) together with the inequality search as before. But the problem is that I also get back the results where there is a but no b, which is not what I want. Maybe I have missed something obvious, or done a coding error, or possibly there is a restriction on how you can write these queries in appengine, so any tips or help would be very welcome. Regards Klas

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  • How to call Twiter's Streaming/Filter Feed with urllib2/httplib?

    - by Simon
    Update: I switched this back from answered as I tried the solution posed in cogent Nick's answer and switched to Google's urlfetch: logging.debug("starting urlfetch for http://%s%s" % (self.host, self.url)) result = urlfetch.fetch("http://%s%s" % (self.host, self.url), payload=self.body, method="POST", headers=self.headers, allow_truncated=True, deadline=5) logging.debug("finished urlfetch") but unfortunately finished urlfetch is never printed - I see the timeout happen in the logs (it returns 200 after 5 seconds), but execution doesn't seem tor return. Hi All- I'm attempting to play around with Twitter's Streaming (aka firehose) API with Google App Engine (I'm aware this probably isn't a great long term play as you can't keep the connection perpetually open with GAE), but so far I haven't had any luck getting my program to actually parse the results returned by Twitter. Some code: logging.debug("firing up urllib2") req = urllib2.Request(url="http://%s%s" % (self.host, self.url), data=self.body, headers=self.headers) logging.debug("called urlopen for %s %s, about to call urlopen" % (self.host, self.url)) fobj = urllib2.urlopen(req) logging.debug("called urlopen") When this executes, unfortunately, my debug output never shows the called urlopen line printed. I suspect what's happening is that Twitter keeps the connection open and urllib2 doesn't return because the server doesn't terminate the connection. Wireshark shows the request being sent properly and a response returned with results. I tried adding Connection: close to my request header, but that didn't yield a successful result. Any ideas on how to get this to work? thanks -Simon

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  • How to generate a key for a group entity?

    - by user246114
    Hi, I'm trying to make a group entity. Something like: class User { } class UserColor { } ... Key key = new KeyFactory.Builder( User.class.getSimpleName(), username). .addChild(UserColor.class.getSimpleName(), ???).getKey(); I know the unique username up-front to use for the key of the User object. But I just want app engine to generate a random unique value for the key value of the UserColor instance. I think this is described here, but I don't understand their wording: http://code.google.com/appengine/docs/java/datastore/transactions.html To create an object with a system-generated numeric ID and an entity group parent, you must use an entity group parent key field (such as customerKey, above). Assign the key of the parent to the parent key field, then leave the object's key field set to null. When the object is saved, the datastore populates the key field with the complete key, including the entity group parent. and this is their example: @Persistent @Extension(vendorName="datanucleus", key="gae.parent-pk", value="true") private Key customerKey; but I don't understand - should UserColor look like this then?: class UserColor { @Persistent @Extension(vendorName="datanucleus", key="gae.parent-pk", value="true") private Key mKeyParent; @Primary private Key mKey; // leave null } ... Key keyParent = new KeyFactory.Builder( User.class.getSimpleName(), username); UserColor uc = new UserColor(); uc.setKeyParent(keyParent); pm.makePersistent(uc); // now generated for me automatically? is that correct? Using this method, I should be able to use a User and a UserColor object in a transaction together, right? Thanks

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