/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.jpdl.internal.activity;
import java.util.List;
import org.jbpm.api.JbpmException;
import org.jbpm.api.activity.ActivityExecution;
import org.jbpm.pvm.internal.model.Activity;
import org.jbpm.pvm.internal.model.Condition;
import org.jbpm.pvm.internal.model.ExecutionImpl;
import org.jbpm.pvm.internal.model.Transition;
/**
* @author Tom Baeyens
*/
public class DecisionConditionActivity extends JpdlActivity {
private static final long serialVersionUID = 1L;
public void execute(ActivityExecution execution) {
execute((ExecutionImpl) execution);
}
public void execute(ExecutionImpl execution) {
Transition transition = findTransition(execution);
if (transition==null) {
throw new JbpmException("no outgoing transition condition evaluated to true for decision "+execution.getActivity());
}
if (transition.getName()!=null) {
execution.historyDecision(transition.getName());
}
execution.take(transition);
}
private Transition findTransition(ExecutionImpl execution) {
Activity activity = execution.getActivity();
List<Transition> outgoingTransitions = activity.getOutgoingTransitions();
for (Transition transition : outgoingTransitions) {
Condition condition = transition.getCondition();
if ( (condition==null)
|| (condition.evaluate(execution))
) {
return transition;
}
}
return null;
}
}