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From Costin Leau <costin.l...@gmail.com>
Subject Re[2]: eventconsumer exceptions
Date Thu, 24 Nov 2005 21:15:44 GMT
Hello Marcel,

> could you please enable debug level for the class
> org.apache.jackrabbit.core.observation.ObservationManagerFactory and run
> your code again? you will then see the full stacktrace of the exception
> that is thrown. that will give us more insight which listener causes the
> exception and where.

I had some problems with commons-logging but in the end (through some
hard coding) got some output:

[java] 2005-11-24 22:58:41,764 [ObservationManager] DEBUG org.apache.jackrabbit.core.observation.ObservationManagerFactory
- event delivery to 4 consumers started...
[java] received events:
[java] Event[path=/sample node/jcr:primaryType|type=4|userID=bogus]
[java] Event[path=/sample node/sample property|type=4|userID=bogus]
[java] Event[path=/sample node|type=1|userID=bogus]
[java] 2005-11-24 22:58:41,764 [ObservationManager] WARN  org.apache.jackrabbit.core.observation.ObservationManagerFactory
- EventConsumer threw exception: java.lang.IllegalStateException: not in
itialized
[java] 2005-11-24 22:58:41,764 [ObservationManager] DEBUG org.apache.jackrabbit.core.observation.ObservationManagerFactory
- Stacktrace:
[java] java.lang.IllegalStateException: not initialized
[java]     at org.apache.jackrabbit.core.security.SimpleAccessManager.isGranted(SimpleAccessManager.java:119)
[java]     at org.apache.jackrabbit.core.observation.EventConsumer.consumeEvents(EventConsumer.java:231)
[java]     at org.apache.jackrabbit.core.observation.ObservationManagerFactory.run(ObservationManagerFactory.java:161)
[java]     at java.lang.Thread.run(Thread.java:595)
[java] received events:
[java] Event[path=/sample node/jcr:primaryType|type=4|userID=bogus]
[java] Event[path=/sample node/sample property|type=4|userID=bogus]
[java] Event[path=/sample node|type=1|userID=bogus]
[java] 2005-11-24 22:58:41,764 [ObservationManager] DEBUG org.apache.jackrabbit.core.observation.ObservationManagerFactory
- event delivery finished.

For Tobias: my listener is extremly simple (I don't even use
IllegalStateException):

public class DummyEventListener implements EventListener {
        
        public DummyEventListener()
        {
                System.out.println("constructor called");
        }
        /**
         * @see javax.jcr.observation.EventListener#onEvent(javax.jcr.observation.EventIterator)
         */
        public void onEvent(EventIterator iterator) {
                System.out.println("received events: ");
                for (; iterator.hasNext();) {
                        try {
                                System.out.println(toStringEvent(iterator.nextEvent()));
                        }
                        catch (RepositoryException e) {
                                System.err.println("exception while listnening " + SessionFactoryUtils.translateException(e));
                        }
                }
        }

        private String toStringEvent(Event event) throws RepositoryException
        {
            // do some formatting and pretty printing
            return string;
        }
}

For some reason SimpleAccessManager is not initialized but I have no
idea why this happens - I'm not using any specific JackRabbit API just
the JSR-170. Considering that the number of WARNs varies, I think it's
a threading issue.

> Costin Leau wrote:
>> Hello,
>> 
>> I'm trying to use EventListener but I keep getting these messages -
>> sometimes 3, sometimes one and sometimes none.
>>      [java] 2005-11-24 17:05:30,489 [ObservationManager] WARN  org.apache.jackrabbit.core.observation.ObservationManagerFactory
- EventConsumer threw exception: java.lang.IllegalStateException: not in
>> itialized
>>      [java] 2005-11-24 17:05:30,489 [ObservationManager] WARN  org.apache.jackrabbit.core.observation.ObservationManagerFactory
- EventConsumer threw exception: java.lang.IllegalStateException: not in
>> itialized
>>      [java] 2005-11-24 17:05:30,489 [ObservationManager] WARN  org.apache.jackrabbit.core.observation.ObservationManagerFactory
- EventConsumer threw exception: java.lang.IllegalStateException: not in
>> itialized  
>> 
>> I have no idea what causes this messages. I assumed this has something
>> to do with events being asynchronous. I've added a Thread.sleep but I
>> still get one (I do get to log the others):
>> 
>>     [mkdir] Created dir: C:\work\study\springmodules-0.2\workspace\springmodules\samples\jcr\.classes\repo
>>      [java] constructor called
>>      [java] received events:
>>      [java] Event[path=/sample node/sample property|type=4|userID=bogus]
>>      [java] Event[path=/sample node/jcr:primaryType|type=4|userID=bogus]
>>      [java] Event[path=/sample node|type=1|userID=bogus]
>>      [java] received events:
>>      [java] Event[path=/sample node/sample property|type=4|userID=bogus]
>>      [java] Event[path=/sample node/jcr:primaryType|type=4|userID=bogus]
>>      [java] Event[path=/sample node|type=1|userID=bogus]
>>      [java] 2005-11-24 17:14:02,335 [ObservationManager] WARN  org.apache.jackrabbit.core.observation.ObservationManagerFactory
- EventConsumer threw exception: java.lang.IllegalStateException: not in
>> itialized
>> 
>> What exactly I am doing wrong here. I can provide the source code
>> however the code is very simple - I get a session and just attach a
>> listener (which simply logs) to it. Nothing special.
>> 



-- 
Best regards,
 Costin                            mailto:costin.leau@gmail.com


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