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