/**
* Copyright 1996-2014 FoxBPM ORG.
*
* 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.
*
* @author kenshin
*/
package org.foxbpm.kernel.event;
import java.util.List;
import org.foxbpm.kernel.KernelListenerException;
import org.foxbpm.kernel.process.impl.KernelFlowElementsContainerImpl;
import org.foxbpm.kernel.runtime.InterpretableExecutionContext;
public abstract class AbstractKernelEvent implements KernelEvent {
public boolean isAsync(InterpretableExecutionContext executionContext) {
// TODO Auto-generated method stub
return false;
}
public void execute(InterpretableExecutionContext executionContext) {
KernelFlowElementsContainerImpl container = getContainer(executionContext);
String eventName = getEventName();
List<KernelListener> kernelListeners = container.getKernelListeners(eventName);
int kernelListenerIndex = executionContext.getKernelListenerIndex();
if (kernelListeners.size() > kernelListenerIndex) {
executionContext.setEventName(eventName);
executionContext.setEventSource(container);
KernelListener listener = kernelListeners.get(kernelListenerIndex);
try {
listener.notify(executionContext);
} catch (Exception e) {
throw new KernelListenerException("不能执行事件监听 : " + e.getMessage(), e,executionContext.getId(),executionContext.getFlowNode().getId(),listener.getClass().getName(),eventName);
}
executionContext.setKernelListenerIndex(kernelListenerIndex + 1);
executionContext.fireEvent(this);
} else {
executionContext.setKernelListenerIndex(0);
executionContext.setEventName(null);
executionContext.setEventSource(null);
eventNotificationsCompleted(executionContext);
}
}
protected abstract KernelFlowElementsContainerImpl getContainer(InterpretableExecutionContext executionContext);
protected abstract String getEventName();
protected abstract void eventNotificationsCompleted(InterpretableExecutionContext executionContext);
}