/*
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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.task;
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import java.util.HashMap;
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import java.util.Map;
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import org.jbpm.api.JbpmException;
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import org.jbpm.pvm.internal.id.IdComposer;
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import org.jbpm.pvm.internal.model.Activity;
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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.ProcessDefinitionImpl;
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/**
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* @author Tom Baeyens
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*/
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public class LifeCycle extends ProcessDefinitionImpl {
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private static final long serialVersionUID = 1L;
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private static LifeCycleParser lifeCycleParser = new LifeCycleParser();
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private static Map<String, ProcessDefinitionImpl> lifeCycleProcesses = new HashMap<String, ProcessDefinitionImpl>();
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public static String initialise(TaskImpl task) {
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ProcessDefinitionImpl lifeCycle = getLifeCycle(task);
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Map<String, Object> lifeCycleVariables = new HashMap<String, Object>();
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lifeCycleVariables.put("task", task);
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ExecutionImpl lifeCycleExecution = (ExecutionImpl) lifeCycle.createProcessInstance();
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lifeCycleExecution.setVariables(lifeCycleVariables);
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lifeCycleExecution.start();
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return lifeCycleExecution.getActivity().getName();
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}
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public static ProcessDefinitionImpl getLifeCycle(TaskImpl task) {
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if (task==null) {
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throw new JbpmException("task is null");
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}
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String resource = task.getLifeCycleResource();
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if (resource==null) {
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throw new JbpmException("task "+task.getClass().getName()+" did'nt return a lifecycle");
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}
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ProcessDefinitionImpl lifeCycleProcess;
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synchronized (lifeCycleProcesses) {
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lifeCycleProcess = lifeCycleProcesses.get(resource);
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if (lifeCycleProcess==null) {
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lifeCycleProcess = (ProcessDefinitionImpl) lifeCycleParser
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.createParse()
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.setResource(resource)
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.execute()
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.checkErrors("task lifecycle")
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.getDocumentObject();
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lifeCycleProcesses.put(resource, lifeCycleProcess);
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}
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}
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return lifeCycleProcess;
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}
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protected static void fireLifeCycleEvent(String eventName, TaskImpl task) {
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ExecutionImpl lifeCycleExecution = new ExecutionImpl();
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ProcessDefinitionImpl lifeCycleProcess = getLifeCycle(task);
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lifeCycleExecution.setProcessDefinition(lifeCycleProcess);
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String state = task.getState();
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Activity activity = lifeCycleProcess.getActivity(state);
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lifeCycleExecution.setActivity((ActivityImpl) activity);
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lifeCycleExecution.signal(eventName);
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task.setState(lifeCycleExecution.getActivity().getName());
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}
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public IdComposer getIdGenerator() {
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// overrides the default ProcessDefinitionImpl behaviour that will end up
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// in the execution being persisted
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return null;
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}
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}
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