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