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JcrCDIEventListener.java
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JcrCDIEventListener.java
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/*
* JBoss, Home of Professional Open Source
* Copyright [2010], Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.seam.jcr.events;
import java.lang.annotation.Annotation;
import javax.enterprise.inject.spi.BeanManager;
import javax.jcr.observation.Event;
import javax.jcr.observation.EventIterator;
import javax.jcr.observation.EventListener;
import org.jboss.logging.Logger;
import org.jboss.seam.solder.core.Veto;
/**
* JCR {@link EventListener} for CDI
*
* @author george
*
*/
@Veto
public final class JcrCDIEventListener implements EventListener
{
private BeanManager beanManager;
private Logger logger = Logger.getLogger(JcrCDIEventListener.class);
public JcrCDIEventListener(BeanManager beanManager)
{
this.beanManager = beanManager;
}
/**
* Fired by the JCR spec
*
* @see EventListener#onEvent(EventIterator)
*/
@Override
public void onEvent(EventIterator events)
{
logger.debugf("Event iterator size: %s", events.getSize());
while (events.hasNext())
{
Event event = events.nextEvent();
logger.debugf("About to fire an event of type: %s", event.getType());
beanManager.fireEvent(event, getQualifierByEvent(event));
}
}
/**
* Returns the qualifier by the event type
*
* @param eventType
* @return
*/
Annotation getQualifierByEvent(Event event)
{
Annotation qualifier;
switch (event.getType())
{
case Event.NODE_ADDED:
qualifier = NodeAddedLiteral.INSTANCE;
break;
case Event.NODE_MOVED:
qualifier = NodeMovedLiteral.INSTANCE;
break;
case Event.NODE_REMOVED:
qualifier = NodeRemovedLiteral.INSTANCE;
break;
case Event.PERSIST:
qualifier = PersistLiteral.INSTANCE;
break;
case Event.PROPERTY_ADDED:
qualifier = PropertyAddedLiteral.INSTANCE;
break;
case Event.PROPERTY_CHANGED:
qualifier = PropertyChangedLiteral.INSTANCE;
break;
case Event.PROPERTY_REMOVED:
qualifier = PropertyRemovedLiteral.INSTANCE;
break;
default:
throw new IllegalArgumentException("Event type unrecognized: " + event);
}
return qualifier;
}
}