Exemplo n.º 1
0
  @Test
  public void testCancelNonRegisteredWorkItemHandler() {
    String processId = "org.drools.actions";
    String workName = "Unnexistent Task";
    RuleFlowProcess process = getWorkItemProcess(processId, workName);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    ((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
    StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();

    ksession.getWorkItemManager().registerWorkItemHandler(workName, new DoNothingWorkItemHandler());

    Map<String, Object> parameters = new HashMap<String, Object>();
    parameters.put("UserName", "John Doe");
    parameters.put("Person", new Person("John Doe"));

    ProcessInstance processInstance = ksession.startProcess("org.drools.actions", parameters);
    long processInstanceId = processInstance.getId();
    Assert.assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
    ksession.getWorkItemManager().registerWorkItemHandler(workName, null);

    try {
      ksession.abortProcessInstance(processInstanceId);
      Assert.fail("should fail if WorkItemHandler for" + workName + "is not registered");
    } catch (WorkItemHandlerNotFoundException wihnfe) {

    }

    Assert.assertEquals(ProcessInstance.STATE_ABORTED, processInstance.getState());
  }
  @Test
  public void testPersistenceWorkItems() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("WorkItemsProcess.rf"), ResourceType.DRF);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());

    StatefulKnowledgeSession ksession =
        InfinispanKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    int origNumObjects = ksession.getObjects().size();
    long id = ksession.getIdentifier();

    ProcessInstance processInstance = ksession.startProcess("org.drools.test.TestProcess");
    ksession.insert("TestString");
    logger.debug("Started process instance " + processInstance.getId());

    TestWorkItemHandler handler = TestWorkItemHandler.getInstance();
    WorkItem workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertEquals(origNumObjects + 1, ksession.getObjects().size());
    for (Object o : ksession.getObjects()) {
      logger.debug(o.toString());
    }
    assertNull(processInstance);
  }
  @Test
  public void testPersistenceWorkItems2() throws Exception {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("WorkItemsProcess.rf"), ResourceType.DRF);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());

    StatefulKnowledgeSession ksession =
        JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    int id = ksession.getId();

    UserTransaction ut = (UserTransaction) new InitialContext().lookup("java:comp/UserTransaction");
    ut.begin();

    ProcessInstance processInstance = ksession.startProcess("org.drools.test.TestProcess");
    ksession.insert("TestString");
    logger.debug("Started process instance {}", processInstance.getId());

    TestWorkItemHandler handler = TestWorkItemHandler.getInstance();
    WorkItem workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ut.commit();

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNull(workItem);

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertEquals(1, ksession.getObjects().size());
    for (Object o : ksession.getObjects()) {
      logger.debug(o.toString());
    }
    assertNull(processInstance);
  }
  @Test
  public void testPersistenceVariables() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("VariablesProcess.rf"), ResourceType.DRF);
    for (KnowledgeBuilderError error : kbuilder.getErrors()) {
      logger.debug(error.toString());
    }
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());

    StatefulKnowledgeSession ksession =
        InfinispanKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    long id = ksession.getIdentifier();

    Map<String, Object> parameters = new HashMap<String, Object>();
    parameters.put("name", "John Doe");
    ProcessInstance processInstance =
        ksession.startProcess("org.drools.test.TestProcess", parameters);

    TestWorkItemHandler handler = TestWorkItemHandler.getInstance();
    WorkItem workItem = handler.getWorkItem();
    assertNotNull(workItem);
    assertEquals("John Doe", workItem.getParameter("name"));

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNotNull(workItem);
    assertEquals("John Doe", workItem.getParameter("text"));

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNull(processInstance);
  }
  @Test
  public void testPersistenceSubProcess() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("SuperProcess.rf"), ResourceType.DRF);
    kbuilder.add(new ClassPathResource("SubProcess.rf"), ResourceType.DRF);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());

    StatefulKnowledgeSession ksession =
        InfinispanKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    long id = ksession.getIdentifier();

    ProcessInstance processInstance = ksession.startProcess("com.sample.SuperProcess");
    logger.debug("Started process instance " + processInstance.getId());

    TestWorkItemHandler handler = TestWorkItemHandler.getInstance();
    WorkItem workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    workItem = handler.getWorkItem();
    assertNull(workItem);

    ksession = InfinispanKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNull("Process did not complete.", processInstance);
  }
  @Test
  public void testPersistenceWorkItems3() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("WorkItemsProcess.rf"), ResourceType.DRF);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());

    StatefulKnowledgeSession ksession =
        InfinispanKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    ksession.getWorkItemManager().registerWorkItemHandler("MyWork", new SystemOutWorkItemHandler());
    ProcessInstance processInstance = ksession.startProcess("org.drools.test.TestProcess");
    ksession.insert("TestString");
    assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
  }
  @Test
  public void testPersistenceEvents() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("EventsProcess.rf"), ResourceType.DRF);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());

    StatefulKnowledgeSession ksession =
        JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);
    int id = ksession.getId();

    ProcessInstance processInstance = ksession.startProcess("org.drools.test.TestProcess");
    logger.debug("Started process instance {}", processInstance.getId());

    TestWorkItemHandler handler = TestWorkItemHandler.getInstance();
    WorkItem workItem = handler.getWorkItem();
    assertNotNull(workItem);

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession.signalEvent("MyEvent1", null, processInstance.getId());

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNotNull(processInstance);

    ksession.signalEvent("MyEvent2", null, processInstance.getId());

    ksession = JPAKnowledgeService.loadStatefulKnowledgeSession(id, kbase, null, env);
    processInstance = ksession.getProcessInstance(processInstance.getId());
    assertNull(processInstance);
  }
Exemplo n.º 8
0
  public static final void main(String[] args) {
    try {
      // load up the knowledge base
      KnowledgeBase kbase = readKnowledgeBase();
      StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
      final KnowledgeRuntimeLogger logger =
          KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(ksession, "test", 1000);
      final HornetQHTWorkItemHandler hornetQHTWorkItemHandler =
          new HornetQHTWorkItemHandler(ksession);
      Runtime.getRuntime()
          .addShutdownHook(
              new Thread() {

                public void run() {
                  if (logger != null) {
                    try {
                      hornetQHTWorkItemHandler.dispose();
                    } catch (Exception ex) {
                      Logger.getLogger(EvaluationExample.class.getName())
                          .log(Level.SEVERE, null, ex);
                    }
                    logger.close();
                    System.exit(0);
                  }
                }
              });

      ksession.getWorkItemManager().registerWorkItemHandler("Human Task", hornetQHTWorkItemHandler);
      // start a new process instance
      Map<String, Object> params = new HashMap<String, Object>();
      params.put("employee", "krisv");
      params.put("reason", "Yearly performance evaluation");
      ksession.startProcess("com.sample.evaluation", params);
    } catch (Throwable t) {
      t.printStackTrace();
    }
  }
Exemplo n.º 9
0
  private void createKnowledgeSessionStartProcessEtc(KieBase kbase) {
    logger.info("session count=" + kbase.getKieSessions().size());

    StatefulKnowledgeSession ksession =
        JPAKnowledgeService.newStatefulKnowledgeSession(
            kbase, getKnowledgeSessionConfiguration(), env);
    addEventListenersToSession(ksession);

    /**
     * The following log line caused the memory leak. The specific (reverse-ordered) stack trace is
     * the following:
     *
     * <p>MemoryLeakTest.createKnowledgeSessionStartProcessEtc(KnowledgeBase) calls
     * kbase.getKieSessions() .. KnowledgeBaseImpl.getStatefulKnowledgeSessions() line: 186
     * StatefulKnowledgeSessionImpl.<init>(ReteooWorkingMemory, KnowledgeBase) line: 121
     * ReteooStatefulSession(AbstractWorkingMemory).setKnowledgeRuntime(InternalKnowledgeRuntime)
     * line: 1268 ReteooStatefulSession(AbstractWorkingMemory).createProcessRuntime() line: 342
     * ProcessRuntimeFactory.newProcessRuntime(AbstractWorkingMemory) line: 12
     * ProcessRuntimeFactoryServiceImpl.newProcessRuntime(AbstractWorkingMemory) line: 1
     * ProcessRuntimeFactoryServiceImpl.newProcessRuntime(AbstractWorkingMemory) line: 10
     * ProcessRuntimeImpl.<init>(AbstractWorkingMemory) line: 84
     * ProcessRuntimeImpl.initProcessEventListeners() line: 215
     *
     * <p>And ProcessRuntimeImpl.initProcessEventListeners() is what adds a new listener to
     * AbstractRuleBase.eventSupport.listeners via this line (235):
     * kruntime.getKnowledgeBase().addEventListener(knowledgeBaseListener);
     *
     * <p>The StatefulKnowledgeSessionImpl instance created in this .getStatefulKnowledgeSessions()
     * method is obviously never disposed, which means that the listener is never removed. The
     * listener then contains a link to a field (signalManager) of the ProcessRuntimeImpl, which
     * contains a link to the StatefulKnowledgeSessionImpl instance created here. etc..
     */
    logger.info("session count=" + kbase.getKieSessions().size());

    TestWorkItemHandler handler = new TestWorkItemHandler();
    ksession.getWorkItemManager().registerWorkItemHandler("Human Task", handler);

    try {
      // create process instance, insert into session and start process
      Map<String, Object> processParams = new HashMap<String, Object>();
      String[] fireballVarHolder = new String[1];
      processParams.put("fireball", fireballVarHolder);
      ProcessInstance processInstance = ksession.createProcessInstance(PROCESS_NAME, processParams);
      ksession.insert(processInstance);
      ksession.startProcessInstance(processInstance.getId());

      // after the log line has been added, the DefaultProcessEventListener registered
      //  in the addEventListenersToSession() method no longer works?!?
      ksession.fireAllRules();

      // test process variables
      String[] procVar =
          (String[]) ((WorkflowProcessInstance) processInstance).getVariable("fireball");
      assertEquals("Rule task did NOT fire or complete.", "boom!", procVar[0]);

      // complete task and process
      Map<String, Object> results = new HashMap<String, Object>();
      results.put("chaerg", new SerializableResult("zhrini", 302l, "F", "A", "T"));
      ksession.getWorkItemManager().completeWorkItem(handler.getWorkItem().getId(), results);

      assertNull(ksession.getProcessInstance(processInstance.getId()));
    } finally {
      // This should clean up all listeners, but doesn't -> see docs above
      ksession.dispose();
    }
  }
Exemplo n.º 10
0
  public static final void main(String[] args) {
    try {
      // load up the knowledge base
      KnowledgeBase kbase = readKnowledgeBase();
      StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
      KnowledgeRuntimeLogger logger =
          KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(ksession, "test", 1000);
      HornetQHTWorkItemHandler hornetQHTWorkItemHandler = new HornetQHTWorkItemHandler(ksession);
      ksession.getWorkItemManager().registerWorkItemHandler("Human Task", hornetQHTWorkItemHandler);
      // start a new process instance
      Map<String, Object> params = new HashMap<String, Object>();
      params.put("employee", "krisv");
      params.put("reason", "Yearly performance evaluation");
      ksession.startProcess("com.sample.evaluation", params);

      SystemEventListenerFactory.setSystemEventListener(new SystemEventListener());
      TaskService taskClient =
          new SyncTaskServiceWrapper(new AsyncHornetQTaskClient("EvaluationExample2-testClient"));
      taskClient.connect("127.0.0.1", 5153);

      Thread.sleep(1000);
      // "krisv" executes his own performance evaluation
      TaskSummary task1 = taskClient.getTasksAssignedAsPotentialOwner("krisv", "en-UK").get(0);
      System.out.println(
          "Krisv executing task "
              + task1.getName()
              + "("
              + task1.getId()
              + ": "
              + task1.getDescription()
              + ")");

      taskClient.start(task1.getId(), "krisv");

      taskClient.complete(task1.getId(), "krisv", null);

      Thread.sleep(1000);
      // "john", part of the "PM" group, executes a performance evaluation
      List<String> groups = new ArrayList<String>();
      groups.add("PM");

      TaskSummary task2 =
          taskClient.getTasksAssignedAsPotentialOwner("john", groups, "en-UK").get(0);
      System.out.println(
          "John executing task "
              + task2.getName()
              + "("
              + task2.getId()
              + ": "
              + task2.getDescription()
              + ")");

      taskClient.claim(task2.getId(), "john", groups);

      taskClient.start(task2.getId(), "john");

      taskClient.complete(task2.getId(), "john", null);

      Thread.sleep(1000);
      // "mary", part of the "HR" group, delegates a performance evaluation
      groups = new ArrayList<String>();
      groups.add("HR");

      TaskSummary task3 =
          taskClient.getTasksAssignedAsPotentialOwner("mary", groups, "en-UK").get(0);
      System.out.println(
          "Mary delegating task "
              + task3.getName()
              + "("
              + task3.getId()
              + ": "
              + task3.getDescription()
              + ") to krisv");

      taskClient.claim(task3.getId(), "mary", groups);

      taskClient.delegate(task3.getId(), "mary", "krisv");

      // "administrator" delegates the task back to mary
      System.out.println("Administrator delegating task back to mary");

      taskClient.delegate(task3.getId(), "Administrator", "mary");

      Thread.sleep(1000);
      // mary executing the task
      TaskSummary task3b = taskClient.getTasksAssignedAsPotentialOwner("mary", "en-UK").get(0);
      System.out.println(
          "Mary executing task "
              + task3b.getName()
              + "("
              + task3b.getId()
              + ": "
              + task3b.getDescription()
              + ")");

      taskClient.start(task3b.getId(), "mary");

      taskClient.complete(task3b.getId(), "mary", null);

      taskClient.disconnect();
      hornetQHTWorkItemHandler.dispose();
      Thread.sleep(1000);

      logger.close();
      System.exit(0);
    } catch (Throwable t) {
      t.printStackTrace();
    }
  }
Exemplo n.º 11
0
  public void testWorkItem() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    Reader source =
        new StringReader(
            "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
                + "<process xmlns=\"http://drools.org/drools-5.0/process\"\n"
                + "         xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
                + "         xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n"
                + "         type=\"RuleFlow\" name=\"flow\" id=\"org.drools.actions\" package-name=\"org.drools\" version=\"1\" >\n"
                + "\n"
                + "  <header>\n"
                + "    <variables>\n"
                + "      <variable name=\"UserName\" >\n"
                + "        <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "        <value>John Doe</value>\n"
                + "      </variable>\n"
                + "      <variable name=\"Person\" >\n"
                + "        <type name=\"org.drools.core.process.core.datatype.impl.type.ObjectDataType\" className=\"org.jbpm.Person\" />\n"
                + "      </variable>\n"
                + "      <variable name=\"MyObject\" >\n"
                + "        <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "      </variable>\n"
                + "      <variable name=\"Number\" >\n"
                + "        <type name=\"org.drools.core.process.core.datatype.impl.type.IntegerDataType\" />\n"
                + "      </variable>\n"
                + "    </variables>\n"
                + "  </header>\n"
                + "\n"
                + "  <nodes>\n"
                + "    <start id=\"1\" name=\"Start\" />\n"
                + "    <workItem id=\"2\" name=\"HumanTask\" >\n"
                + "      <work name=\"Human Task\" >\n"
                + "        <parameter name=\"ActorId\" >\n"
                + "          <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "          <value>#{UserName}</value>\n"
                + "        </parameter>\n"
                + "        <parameter name=\"Content\" >\n"
                + "          <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "          <value>#{Person.name}</value>\n"
                + "        </parameter>\n"
                + "        <parameter name=\"TaskName\" >\n"
                + "          <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "          <value>Do something</value>\n"
                + "        </parameter>\n"
                + "        <parameter name=\"Priority\" >\n"
                + "          <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "        </parameter>\n"
                + "        <parameter name=\"Comment\" >\n"
                + "          <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "        </parameter>\n"
                + "        <parameter name=\"Attachment\" >\n"
                + "          <type name=\"org.drools.core.process.core.datatype.impl.type.StringDataType\" />\n"
                + "        </parameter>\n"
                + "      </work>\n"
                + "      <mapping type=\"in\" from=\"MyObject\" to=\"Attachment\" />"
                + "      <mapping type=\"in\" from=\"Person.name\" to=\"Comment\" />"
                + "      <mapping type=\"out\" from=\"Result\" to=\"MyObject\" />"
                + "      <mapping type=\"out\" from=\"Result.length()\" to=\"Number\" />"
                + "    </workItem>\n"
                + "    <end id=\"3\" name=\"End\" />\n"
                + "  </nodes>\n"
                + "\n"
                + "  <connections>\n"
                + "    <connection from=\"1\" to=\"2\" />\n"
                + "    <connection from=\"2\" to=\"3\" />\n"
                + "  </connections>\n"
                + "\n"
                + "</process>");
    kbuilder.add(ResourceFactory.newReaderResource(source), ResourceType.DRF);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();

    TestWorkItemHandler handler = new TestWorkItemHandler();
    ksession.getWorkItemManager().registerWorkItemHandler("Human Task", handler);
    Map<String, Object> parameters = new HashMap<String, Object>();
    parameters.put("UserName", "John Doe");
    Person person = new Person();
    person.setName("John Doe");
    parameters.put("Person", person);
    WorkflowProcessInstance processInstance =
        (WorkflowProcessInstance) ksession.startProcess("org.drools.actions", parameters);
    assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
    WorkItem workItem = handler.getWorkItem();
    assertNotNull(workItem);
    assertEquals("John Doe", workItem.getParameter("ActorId"));
    assertEquals("John Doe", workItem.getParameter("Content"));
    assertEquals("John Doe", workItem.getParameter("Comment"));
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), null);
    assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());

    parameters = new HashMap<String, Object>();
    parameters.put("UserName", "Jane Doe");
    parameters.put("MyObject", "SomeString");
    person = new Person();
    person.setName("Jane Doe");
    parameters.put("Person", person);
    processInstance =
        (WorkflowProcessInstance) ksession.startProcess("org.drools.actions", parameters);
    assertEquals(ProcessInstance.STATE_ACTIVE, processInstance.getState());
    workItem = handler.getWorkItem();
    assertNotNull(workItem);
    assertEquals("Jane Doe", workItem.getParameter("ActorId"));
    assertEquals("SomeString", workItem.getParameter("Attachment"));
    assertEquals("Jane Doe", workItem.getParameter("Content"));
    assertEquals("Jane Doe", workItem.getParameter("Comment"));
    Map<String, Object> results = new HashMap<String, Object>();
    results.put("Result", "SomeOtherString");
    ksession.getWorkItemManager().completeWorkItem(workItem.getId(), results);
    assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
    assertEquals("SomeOtherString", processInstance.getVariable("MyObject"));
    assertEquals(15, processInstance.getVariable("Number"));
  }