/*
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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.jpdl.internal.activity;
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import org.jbpm.api.JbpmException;
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import org.jbpm.api.activity.ActivityExecution;
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import org.jbpm.api.jpdl.DecisionHandler;
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import org.jbpm.pvm.internal.model.Activity;
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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.wire.usercode.UserCodeReference;
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/**
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* @author Tom Baeyens
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*/
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public class DecisionHandlerActivity extends JpdlActivity {
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private static final long serialVersionUID = 1L;
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UserCodeReference decisionHandlerReference;
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public void execute(ActivityExecution execution) {
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execute((ExecutionImpl) execution);
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}
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public void execute(ExecutionImpl execution) {
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Activity activity = execution.getActivity();
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String transitionName = null;
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DecisionHandler decisionHandler = null;
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if (decisionHandlerReference!=null) {
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decisionHandler = (DecisionHandler) decisionHandlerReference.getObject(execution);
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}
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if (decisionHandler==null) {
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throw new JbpmException("no decision handler specified");
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}
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transitionName = decisionHandler.decide(execution);
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Transition transition = activity.getOutgoingTransition(transitionName);
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if (transition==null) {
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throw new JbpmException("handler in decision '"+activity.getName()+"' returned unexisting outgoing transition name: "+transitionName);
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}
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execution.historyDecision(transitionName);
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execution.take(transition);
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}
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public void setDecisionHandlerReference(UserCodeReference decisionHandlerReference) {
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this.decisionHandlerReference = decisionHandlerReference;
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}
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}
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