Hello fellows,
I'm building on Google App Engine and I'll like to know how to resolve
GAE restrictions of writing to a disk. I've been able to achieve this in
1.4 but
while Migrating to 1.5.3 I'm getting the following exceptions:
[java] SEVERE: Unexpected error occurred
[java] org.apache.wicket.WicketRuntimeException: SecurityException
occurred while creating DiskDataStore. Consider using a non-disk based
IDataStore implementation. See
org.apache.wicket.Application.setPageManagerProvider(IPageManagerProvider)
[java] at
org.apache.wicket.pageStore.DiskDataStore.<init>(DiskDataStore.java:93)
[java] at
org.apache.wicket.DefaultPageManagerProvider.newDataStore(DefaultPageManagerProvider.java:83)
[java] at
org.apache.wicket.DefaultPageManagerProvider.get(DefaultPageManagerProvider.java:53)
[java] at
org.apache.wicket.DefaultPageManagerProvider.get(DefaultPageManagerProvider.java:37)
[java] at
org.apache.wicket.Application.internalGetPageManager(Application.java:1366)
[java] at
org.apache.wicket.Application.fetchCreateAndSetSession(Application.java:1523)
[java] at org.apache.wicket.Session.get(Session.java:159)
[java] at
org.apache.wicket.request.mapper.BufferedResponseMapper.getSessionId(BufferedResponseMapper.java:50)
[java] at
org.apache.wicket.request.mapper.BufferedResponseMapper.hasBufferedResponse(BufferedResponseMapper.java:55)
[java] at
org.apache.wicket.request.mapper.BufferedResponseMapper.getCompatibilityScore(BufferedResponseMapper.java:125)
[java] at
org.apache.wicket.request.mapper.CompoundRequestMapper.mapRequest(CompoundRequestMapper.java:122)
[java] at
org.apache.wicket.request.cycle.RequestCycle.resolveRequestHandler(RequestCycle.java:181)
[java] at
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:206)
[java] at
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:280)
[java] at
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
[java] at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218)
[java] at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[java] at
com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:35)
[java] at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[java] at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:58)
[java] at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[java] at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
[java] at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[java] at
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122)
[java] at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[java] at
com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java:94)
[java] at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
[java] at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
[java] at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
[java] at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
[java] at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
[java] at
org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
[java] at
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)
[java] at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
[java] at
com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:351)
[java] at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
[java] at org.mortbay.jetty.Server.handle(Server.java:326)
[java] at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
[java] at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
[java] at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
[java] at
org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
[java] at
org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
[java] at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
[java] at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
[java] Caused by: java.security.AccessControlException: access denied
(java.io.FilePermission
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\Jetty_localhost_8888_web____.g0v3xf read)
[java] at
java.security.AccessControlContext.checkPermission(AccessControlContext.java:374)
[java] at
java.security.AccessController.checkPermission(AccessController.java:546)
[java] at
java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
[java] at
com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:166)
[java] at java.lang.SecurityManager.checkRead(SecurityManager.java:871)
[java] at java.io.File.exists(File.java:731)
[java] at
org.apache.wicket.pageStore.DiskDataStore.<init>(DiskDataStore.java:82)
[java] ... 43 more
[java] Jan 20, 2012 11:57:56 AM
org.apache.wicket.DefaultExceptionMapper map
I will like to know, what do I need to override and configure to get passed
this.
Thanks
--
Odeyemi 'Kayode O.
http://www.sinati.com. t: @charyorde
