/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.pvm.internal.cmd;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import org.jbpm.api.JbpmException;
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import org.jbpm.api.cmd.Command;
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import org.jbpm.api.cmd.Environment;
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import org.jbpm.api.task.Task;
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import org.jbpm.pvm.internal.model.ActivityImpl;
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import org.jbpm.pvm.internal.model.ExecutionImpl;
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import org.jbpm.pvm.internal.model.Transition;
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import org.jbpm.pvm.internal.session.DbSession;
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import org.jbpm.pvm.internal.task.TaskImpl;
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/**
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* @author Tom Baeyens
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*/
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public class GetOutcomes implements Command<Set<String>> {
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private static final long serialVersionUID = 1L;
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protected String taskId;
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public GetOutcomes(String taskId) {
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if (taskId==null) {
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throw new JbpmException("taskId is null");
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}
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this.taskId = taskId;
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}
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public Set<String> execute(Environment environment) {
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DbSession dbSession = environment.get(DbSession.class);
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TaskImpl task = dbSession.get(TaskImpl.class, Long.parseLong(taskId));
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if (task==null) {
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throw new JbpmException("task "+taskId+" doesn't exist");
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}
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Set<String> outcomes = new HashSet<String>();
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ExecutionImpl execution = (task!=null ? task.getExecution() : null);
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ActivityImpl activity = (execution!=null ? execution.getActivity() : null);
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List<Transition> outgoingTransitions = (activity!=null ? activity.getOutgoingTransitions() : null);
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if (outgoingTransitions!=null) {
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for (Transition transition: outgoingTransitions) {
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outcomes.add(transition.getName());
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}
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}
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return outcomes;
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}
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}
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