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Re: Reporting Java Client EC save exceptions

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Re: Reporting Java Client EC save exceptions

Subject: Re: Reporting Java Client EC save exceptions
From: John Pollard <email@hidden>
Date: Fri, 2 May 2008 22:09:45 +0100

Hi Florijan, I hope your hang-over has passed. Yes, I do a lot of passing back client exceptions to the server and logging server exceptions on the client etc. In this case the server exception being passed to the client is null, so nothing to report from the client unfortunately. John

On 2 May 2008, at 15:24, Florijan Stamenkovic wrote:

If my hung-over memory serves me right, you have access to the original server-side exception on the client, it is encapsulated in the exception you actually catch, no? If that is true, a quick-fix would be to simply send that exception back to the server using RMI and log it. Dirty, I know, but it should work...

I'll think about this some more when my head stops spinning, I've never done what you describe, but it sounds like it might sound useful...
Till then,
F
On May 02, 2008, at 06:05, John C Pollard wrote:
When a Java Client EC saveChanges() is invoked, it makes its way to the server side EC saveChanges(), but I'm struggling to catch and report exceptions. My client is told that a server side exception occurred, but I want to know about it in the server log.

I have a server side EC delegate class which has a method: editingContextShouldPresentException() which isn't being called when my exception occurs.

Neither of: Application.handleException() or Application.handleActionRequestError() are being called.

In my Application.dispatchRequest() I wrap super.dispatchRequest() in a try..catch, but the exception is not getting back to that point.

Here is the stack trace between the dispatchRequest() and the saveChanges() on my server process. Somewhere I need to get a handle on the exception that is coming back through saveChanges() as it doesn't get all the way back to dispatchRequest()

at com .webobjects .eocontrol.EOEditingContext.saveChanges(EOEditingContext.java:3163) at com.webobjects.eodistribution.EODistributionContext $ _RemoteMethodReceiver .clientSideRequestSave(EODistributionContext.java:1084) 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:585) at com.webobjects.foundation.NSSelector.invoke(NSSelector.java:358) at com .webobjects .foundation.NSSelector._safeInvokeSelector(NSSelector.java:110) at com .webobjects .eodistribution .common ._EOServerInvocation.doInvokeWithTarget(_EOServerInvocation.java:150) at com .webobjects .eodistribution .EODistributionContext ._processClientRequest(EODistributionContext.java:494) at com .webobjects .eodistribution .EODistributionContext .responseToClientMessage(EODistributionContext.java:582) at com .webobjects .eodistribution .WOJavaClientApplet.handleClientRequest(WOJavaClientApplet.java:978) at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source) at sun .reflect .DelegatingMethodAccessorImpl .invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at com.webobjects.foundation.NSKeyValueCoding$ValueAccessor $1.methodValue(NSKeyValueCoding.java:636) at com.webobjects.foundation.NSKeyValueCoding $_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.foundation.NSKeyValueCoding $DefaultImplementation.valueForKey(NSKeyValueCoding.java:1293) at com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java: 1686) at com.webobjects.foundation.NSKeyValueCoding $Utility.valueForKey(NSKeyValueCoding.java:447) at com.webobjects.foundation.NSKeyValueCodingAdditions $ DefaultImplementation .valueForKeyPath(NSKeyValueCodingAdditions.java:212) at com .webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java: 1754) at com .webobjects .appserver ._private .WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java: 50) at com .webobjects .appserver ._private.WOGenericElement.invokeAction(WOGenericElement.java:121) at com .webobjects .appserver ._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java: 105) at com .webobjects .appserver ._private.WOGenericContainer.invokeAction(WOGenericContainer.java:29) at com .webobjects .appserver ._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java: 105) at com .webobjects .appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java: 115) at com .webobjects .appserver._private.WOConditional.invokeAction(WOConditional.java:86) at com .webobjects .appserver ._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java: 105) at com .webobjects .appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java: 115) at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java: 1078) at com .webobjects .appserver ._private .WOComponentReference.invokeAction(WOComponentReference.java:127) at com .webobjects .appserver ._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java: 105) at com .webobjects .appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java: 115) at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java: 1078) at com.webobjects.appserver.WOSession.invokeAction(WOSession.java: 1357) at com .webobjects.appserver.WOApplication.invokeAction(WOApplication.java: 1736) at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedPage(WOComponentRequestHandler.java:206) at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedSession(WOComponentRequestHandler.java:298) at com .webobjects .appserver ._private .WOComponentRequestHandler ._dispatchWithPreparedApplication(WOComponentRequestHandler.java:332) at com .webobjects .appserver ._private .WOComponentRequestHandler ._handleRequest(WOComponentRequestHandler.java:369) at com .webobjects .appserver ._private .WOComponentRequestHandler .handleRequest(WOComponentRequestHandler.java:442) at com .webobjects .appserver.WOApplication.dispatchRequest(WOApplication.java:1678) at mpServer.Application.dispatchRequest(Application.java:177) at com .webobjects .appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144) at com .webobjects .appserver._private.WOWorkerThread.run(WOWorkerThread.java:226) at java.lang.Thread.run(Thread.java:613)
Many thanks,
John
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References:  
  >Reporting Java Client EC save exceptions (From: John C Pollard <email@hidden>)
  >Re: Reporting Java Client EC save exceptions (From: Florijan Stamenkovic <email@hidden>)




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