/*
* 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.jpdl.internal.activity;
import java.util.List;
import java.util.Map;
import org.jbpm.api.activity.ActivityExecution;
import org.jbpm.pvm.internal.client.ClientProcessDefinition;
import org.jbpm.pvm.internal.env.Context;
import org.jbpm.pvm.internal.env.Environment;
import org.jbpm.pvm.internal.env.ExecutionContext;
import org.jbpm.pvm.internal.model.Activity;
import org.jbpm.pvm.internal.model.ExecutionImpl;
import org.jbpm.pvm.internal.script.ScriptManager;
import org.jbpm.pvm.internal.session.RepositorySession;
import org.jbpm.pvm.internal.task.SwimlaneImpl;
/**
* @author Tom Baeyens
*/
public class SubProcessActivity extends JpdlExternalActivity {
private static final long serialVersionUID = 1L;
protected String subProcessKey;
protected String subProcessId;
protected Map<String, String> swimlaneMappings;
protected List<SubProcessInParameterImpl> inParameters;
protected List<SubProcessOutParameterImpl> outParameters;
protected String outcomeExpression;
protected Map<Object, String> outcomeVariableMappings;
public void execute(ActivityExecution execution) {
ExecutionImpl executionImpl = (ExecutionImpl) execution;
RepositorySession repositorySession = Environment.getFromCurrent(RepositorySession.class);
ClientProcessDefinition processDefinition = null;
if (subProcessId!=null) {
processDefinition = repositorySession.findProcessDefinitionById(subProcessId);
} else {
processDefinition = repositorySession.findProcessDefinitionByKey(subProcessKey);
}
ExecutionImpl subProcessInstance = (ExecutionImpl) processDefinition.createProcessInstance(null, execution);
for (String swimlaneName: swimlaneMappings.keySet()) {
String subSwimlaneName = swimlaneMappings.get(swimlaneName);
SwimlaneImpl subSwimlane = subProcessInstance.createSwimlane(subSwimlaneName);
SwimlaneImpl swimlane = executionImpl.getSwimlane(swimlaneName);
if (swimlane!=null) {
subSwimlane.initialize(swimlane);
}
}
for (SubProcessInParameterImpl inParameter: inParameters) {
inParameter.produce(executionImpl, subProcessInstance);
}
executionImpl.historyActivityStart();
subProcessInstance.start();
execution.waitForSignal();
}
public void signal(ActivityExecution execution, String signalName, Map<String, ?> parameters) throws Exception {
signal((ExecutionImpl)execution, signalName, parameters);
}
public void signal(ExecutionImpl execution, String signalName, Map<String, ?> parameters) throws Exception {
ExecutionImpl executionImpl = (ExecutionImpl) execution;
ExecutionImpl subProcessInstance = executionImpl.getSubProcessInstance();
String transitionName = null;
ExecutionContext originalExecutionContext = null;
ExecutionContext subProcessExecutionContext = null;
Environment environment = Environment.getCurrent();
if (environment!=null) {
originalExecutionContext = (ExecutionContext) environment.removeContext(Context.CONTEXTNAME_EXECUTION);
subProcessExecutionContext = new ExecutionContext((ExecutionImpl) subProcessInstance);
environment.setContext(subProcessExecutionContext);
}
try {
subProcessInstance.setSuperProcessExecution(null);
executionImpl.setSubProcessInstance(null);
for (SubProcessOutParameterImpl outParameter: outParameters) {
outParameter.consume(executionImpl, subProcessInstance);
}
Activity activity = execution.getActivity();
String subProcessActivityName = subProcessInstance.getActivityName();
if (outcomeExpression!=null) {
ScriptManager scriptManager = Environment.getFromCurrent(ScriptManager.class);
Object value = scriptManager.evaluateExpression(outcomeExpression, null);
// if the value is a String and matches the name of an outgoing transition
if ( (value instanceof String)
&& (activity.hasOutgoingTransition(((String) value)))
) {
// then take that one
transitionName = (String) value;
} else {
// else see if there is a value mapping
transitionName = outcomeVariableMappings.get(value);
}
} else if (activity.hasOutgoingTransition(subProcessActivityName)) {
transitionName = subProcessActivityName;
}
} finally {
if (subProcessExecutionContext!=null) {
environment.removeContext(subProcessExecutionContext);
}
if (originalExecutionContext!=null) {
environment.setContext(originalExecutionContext);
}
}
executionImpl.historyActivityEnd();
if (transitionName!=null) {
execution.take(transitionName);
} else {
execution.takeDefaultTransition();
}
}
public void setSwimlaneMappings(Map<String, String> swimlaneMappings) {
this.swimlaneMappings = swimlaneMappings;
}
public void setOutcomeVariableMappings(Map<Object, String> outcomeVariableMappings) {
this.outcomeVariableMappings = outcomeVariableMappings;
}
public void setSubProcessKey(String subProcessKey) {
this.subProcessKey = subProcessKey;
}
public void setSubProcessId(String subProcessId) {
this.subProcessId = subProcessId;
}
public void setOutcomeExpression(String outcomeExpression) {
this.outcomeExpression = outcomeExpression;
}
public List<SubProcessInParameterImpl> getInParameters() {
return inParameters;
}
public void setInParameters(List<SubProcessInParameterImpl> inParameters) {
this.inParameters = inParameters;
}
public List<SubProcessOutParameterImpl> getOutParameters() {
return outParameters;
}
public void setOutParameters(List<SubProcessOutParameterImpl> outParameters) {
this.outParameters = outParameters;
}
}