/**
* Copyright 2007-2008 非也
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation。
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses. *
*/
package org.fireflow.engine.kernelextensions;
import org.fireflow.engine.EngineException;
import org.fireflow.engine.IRuntimeContextAware;
import org.fireflow.engine.RuntimeContext;
import org.fireflow.engine.persistence.IPersistenceService;
import org.fireflow.kernel.ISynchronizerInstance;
import org.fireflow.kernel.KernelException;
import org.fireflow.kernel.event.INodeInstanceEventListener;
import org.fireflow.kernel.event.NodeInstanceEvent;
import org.fireflow.kernel.impl.SynchronizerInstance;
import org.fireflow.kernel.plugin.IKernelExtension;
/**
* @author 非也
*
*/
public class SynchronizerInstanceExtension implements IKernelExtension,
INodeInstanceEventListener, IRuntimeContextAware {
protected RuntimeContext rtCtx = null;
public void setRuntimeContext(RuntimeContext ctx) {
this.rtCtx = ctx;
}
public RuntimeContext getRuntimeContext() {
return this.rtCtx;
}
/* (non-Javadoc)
* @see org.fireflow.kenel.plugin.IKenelExtension#getExtentionPointName()
*/
public String getExtentionPointName() {
return SynchronizerInstance.Extension_Point_NodeInstanceEventListener;
}
/* (non-Javadoc)
* @see org.fireflow.kenel.plugin.IKenelExtension#getExtentionTargetName()
*/
public String getExtentionTargetName() {
return SynchronizerInstance.Extension_Target_Name;
}
/* (non-Javadoc)
* @see org.fireflow.kenel.event.INodeInstanceEventListener#onNodeInstanceEventFired(org.fireflow.kenel.event.NodeInstanceEvent)
*/
public void onNodeInstanceEventFired(NodeInstanceEvent e)
throws KernelException, EngineException {
//同步器节点的监听器触发条件，是在离开这个节点的时候
if (e.getEventType() == NodeInstanceEvent.NODEINSTANCE_LEAVING) {
ISynchronizerInstance syncInst = (ISynchronizerInstance) e.getSource();
IPersistenceService persistenceService = this.rtCtx.getPersistenceService();
//删除同步器节点的token
persistenceService.deleteTokensForNode(e.getToken().getProcessInstanceId(), syncInst.getSynchronizer().getId());
}
}
}