org.jbpm.examples.taskinstance.CustomTaskInstanceTest.java Source code

Introduction

Here is the source code for org.jbpm.examples.taskinstance.CustomTaskInstanceTest.java

Source

/*
 * 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.examples.taskinstance;

import java.util.Iterator;
import java.util.List;

import org.hibernate.cfg.Configuration;
import org.hibernate.criterion.Restrictions;
import org.jbpm.JbpmConfiguration;
import org.jbpm.context.exe.ContextInstance;
import org.jbpm.db.AbstractDbTestCase;
import org.jbpm.db.JbpmSchema;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.persistence.db.DbPersistenceServiceFactory;
import org.jbpm.svc.Services;
import org.jbpm.taskmgmt.exe.TaskInstance;

/**
 * This example shows how to extend the TaskInstance by adding a custom
 * property.
 */
public class CustomTaskInstanceTest extends AbstractDbTestCase {

    protected void setUp() throws Exception {
        super.setUp();
        deployProcess();
    }

    protected void tearDown() throws Exception {
        super.tearDown();
        jbpmConfiguration.close();
    }

    protected JbpmConfiguration getJbpmConfiguration() {
        if (jbpmConfiguration == null) {
            // the jbpm.cfg.xml file is modified to add the CustomTaskInstanceFactory
            // so we will read in the file from the config directory of this example
            jbpmConfiguration = JbpmConfiguration.parseResource("taskinstance/jbpm.cfg.xml");
            DbPersistenceServiceFactory factory = (DbPersistenceServiceFactory) jbpmConfiguration
                    .getServiceFactory(Services.SERVICENAME_PERSISTENCE);

            Configuration configuration = factory.getConfiguration();
            configuration.addResource("taskinstance/CustomTaskInstance.hbm.xml");

            JbpmSchema jbpmSchema = new JbpmSchema(configuration);
            jbpmSchema.updateTable("JBPM_TASKINSTANCE");
        }
        return jbpmConfiguration;
    }

    void deployProcess() {
        ProcessDefinition processDefinition = ProcessDefinition
                .parseXmlResource("taskinstance/processdefinition.xml");
        deployProcessDefinition(processDefinition);
    }

    public void testCustomTaskInstance() {
        // create processInstance
        newTransaction();
        long processInstanceId = createNewProcessInstance();
        assertFalse("ProcessInstanceId is 0", processInstanceId == 0);

        // perform the task
        newTransaction();
        long taskInstanceId = acquireTask();
        assertFalse("TaskInstanceId is 0", taskInstanceId == 0);
        newTransaction();

        completeTask(taskInstanceId);

        newTransaction();
        TaskInstance taskInstance = jbpmContext.loadTaskInstance(taskInstanceId);
        assertTrue("TaskInstance has not ended", taskInstance.hasEnded());

        // check process is completed
        newTransaction();
        ProcessInstance processInstance = jbpmContext.getProcessInstance(processInstanceId);
        assertTrue("ProcessInstance has not ended", processInstance.hasEnded());
    }

    long createNewProcessInstance() {
        String processDefinitionName = "CustomTaskInstance";
        ProcessInstance processInstance = jbpmContext.newProcessInstanceForUpdate(processDefinitionName);

        ContextInstance contextInstance = processInstance.getContextInstance();
        contextInstance.setVariable("processDefinitionName", processDefinitionName);
        contextInstance.setVariable("customId", "abc");

        processInstance.signal();
        return processInstance.getId();
    }

    long acquireTask() {
        List taskList = findPooledTaskListByCustomId("reviewers", "abc");
        long taskInstanceId = 0;
        for (Iterator i = taskList.iterator(); i.hasNext();) {
            CustomTaskInstance taskInstance = (CustomTaskInstance) i.next();
            taskInstanceId = taskInstance.getId();
            taskInstance.start();
            taskInstance.setActorId("tom");
            String customId = taskInstance.getCustomId();
            assertEquals("abc", customId);
        }
        return taskInstanceId;
    }

    void completeTask(long taskInstanceId) {
        CustomTaskInstance taskInstance = (CustomTaskInstance) jbpmContext.getSession()
                .load(CustomTaskInstance.class, new Long(taskInstanceId));
        taskInstance.end();
    }

    List findPooledTaskListByCustomId(String actorId, String customId) {
        return jbpmContext.getSession().createCriteria(CustomTaskInstance.class).add(Restrictions.isNull("actorId"))
                .add(Restrictions.isNull("end")).add(Restrictions.eq("isCancelled", Boolean.FALSE))
                .add(Restrictions.eq("customId", customId)).createCriteria("pooledActors")
                .add(Restrictions.eq("actorId", actorId)).list();
    }

}