/**
* Copyright 2010 JBoss Inc
*
* 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.jbpm.workflow.instance.impl;
import java.util.List;
import org.drools.runtime.process.NodeInstance;
import org.drools.spi.ProcessContext;
import org.jbpm.process.core.context.exception.ExceptionScope;
import org.jbpm.process.instance.context.exception.ExceptionScopeInstance;
import org.jbpm.process.instance.impl.Action;
import org.jbpm.workflow.core.DroolsAction;
import org.jbpm.workflow.core.impl.ExtendedNodeImpl;
public abstract class ExtendedNodeInstanceImpl extends NodeInstanceImpl {
private static final long serialVersionUID = 510l;
public ExtendedNodeImpl getExtendedNode() {
return (ExtendedNodeImpl) getNode();
}
public void internalTrigger(NodeInstance from, String type) {
triggerEvent(ExtendedNodeImpl.EVENT_NODE_ENTER);
}
public void triggerCompleted(boolean remove) {
triggerCompleted(org.jbpm.workflow.core.Node.CONNECTION_DEFAULT_TYPE, remove);
}
protected void triggerCompleted(String type, boolean remove) {
triggerEvent(ExtendedNodeImpl.EVENT_NODE_EXIT);
super.triggerCompleted(type, remove);
}
protected void triggerEvent(String type) {
ExtendedNodeImpl extendedNode = getExtendedNode();
if (extendedNode == null) {
return;
}
List<DroolsAction> actions = extendedNode.getActions(type);
if (actions != null) {
for (DroolsAction droolsAction: actions) {
executeAction(droolsAction);
}
}
}
protected void executeAction(DroolsAction droolsAction) {
Action action = (Action) droolsAction.getMetaData("Action");
ProcessContext context = new ProcessContext(getProcessInstance().getKnowledgeRuntime());
context.setNodeInstance(this);
try {
action.execute(context);
} catch (Exception exception) {
exception.printStackTrace();
String exceptionName = exception.getClass().getName();
ExceptionScopeInstance exceptionScopeInstance = (ExceptionScopeInstance)
resolveContextInstance(ExceptionScope.EXCEPTION_SCOPE, exceptionName);
if (exceptionScopeInstance == null) {
exception.printStackTrace();
throw new IllegalArgumentException(
"Could not find exception handler for " + exceptionName + " while executing node " + getNodeId());
}
exceptionScopeInstance.handleException(exceptionName, exception);
}
}
}