/*
* 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.jbpm2959;
import org.jbpm.db.AbstractDbTestCase;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
/**
* Backport the dispatcher thread from jBPM 4 to avoid race conditions with multiple JobExecutor
* threads.
*
* @see <a href="https://jira.jboss.org/browse/JBPM-2959">JBPM-2959</a>
* @author Alejandro Guizar
*/
public class JBPM2959Test extends AbstractDbTestCase {
private static final int INSTANCE_COUNT = 10;
protected void setUp() throws Exception {
super.setUp();
// [JBPM-2115] multiple threads not supported on DB2 < 9.7
// multiple threads not be supported on HSQL
String dialect = getHibernateDialect();
if (dialect.indexOf("DB2") == -1 && dialect.indexOf("HSQL") == -1) {
jbpmConfiguration.getJobExecutor().setNbrOfThreads(4);
}
ProcessDefinition processDefinition = ProcessDefinition.parseXmlResource("org/jbpm/jbpm2959/processdefinition.xml");
deployProcessDefinition(processDefinition);
}
protected void tearDown() throws Exception {
jbpmConfiguration.getJobExecutor().setNbrOfThreads(1);
super.tearDown();
}
public void testDeadlockAtJobInsert() {
long[] processInstanceIds = new long[INSTANCE_COUNT];
for (int i = 0; i < processInstanceIds.length; i++) {
ProcessInstance processInstance = jbpmContext.newProcessInstanceForUpdate("jbpm2959");
processInstance.signal();
processInstanceIds[i] = processInstance.getId();
}
processJobs();
for (int i = 0; i < processInstanceIds.length; i++) {
ProcessInstance processInstance = jbpmContext.loadProcessInstance(processInstanceIds[i]);
assert processInstance.hasEnded() : "expected " + processInstance + " to have ended";
}
}
}