/*
* 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.pvm.internal.cmd;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.jbpm.api.JbpmException;
import org.jbpm.api.task.Task;
import org.jbpm.pvm.internal.env.Environment;
import org.jbpm.pvm.internal.model.ActivityImpl;
import org.jbpm.pvm.internal.model.ExecutionImpl;
import org.jbpm.pvm.internal.model.Transition;
import org.jbpm.pvm.internal.session.DbSession;
import org.jbpm.pvm.internal.task.TaskImpl;
/**
* @author Tom Baeyens
*/
public class GetOutcomes implements Command<Set<String>> {
private static final long serialVersionUID = 1L;
protected String taskId;
public GetOutcomes(String taskId) {
if (taskId==null) {
throw new JbpmException("taskId is null");
}
this.taskId = taskId;
}
public Set<String> execute(Environment environment) {
DbSession dbSession = environment.get(DbSession.class);
TaskImpl task = dbSession.get(TaskImpl.class, Long.parseLong(taskId));
if (task==null) {
throw new JbpmException("task "+taskId+" doesn't exist");
}
Set<String> outcomes = new HashSet<String>();
outcomes.add(Task.STATE_COMPLETED);
ExecutionImpl execution = (task!=null ? task.getExecution() : null);
ActivityImpl activity = (execution!=null ? execution.getActivity() : null);
List<Transition> outgoingTransitions = (activity!=null ? activity.getOutgoingTransitions() : null);
if (outgoingTransitions!=null) {
for (Transition transition: outgoingTransitions) {
outcomes.add(transition.getName());
}
}
return outcomes;
}
}