[jboss-user] [jBPM] - Re: About jBPM5.1 ProcessInstance and HumanTask persisit

[Jack G]

Jack G [http://community.jboss.org/people/super_man.sh] created the discussion

"Re: About jBPM5.1 ProcessInstance and HumanTask persisit"

To view the discussion, visit: http://community.jboss.org/message/631013#631013

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Hey Mauricio,

Thanks for reply,I have already change my code as follows：

public static final void startProcess() {
  TaskClient taskClient = new TaskClient(new MinaTaskClientConnectorExt("MinaConnector",
                    new MinaTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));
  taskClient.connect("127.0.0.1", 9123);
 
  KnowledgeBase kbase = readKnowledgeBase();
  EntityManagerFactory emf =Persistence.createEntityManagerFactory("org.jbpm.jpa" );
  Environment env = KnowledgeBaseFactory.newEnvironment();
  env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
  env.set(EnvironmentName.GLOBALS, new MapGlobalResolver());
  env.set(EnvironmentName.TRANSACTION_MANAGER, TransactionManagerServices.getTransactionManager());
  env.set(EnvironmentName.OBJECT_MARSHALLING_STRATEGIES, new ObjectMarshallingStrategy[]{new JPAPlaceholderResolverStrategy(env),new SerializablePlaceholderResolverStrategy(ClassObjectMarshallingStrategyAcceptor.DEFAULT)});
  StatefulKnowledgeSession ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env );
 
  CommandBasedWSHumanTaskHandler taskHandler=new CommandBasedWSHumanTaskHandler(ksession);
  taskHandler.setClient(taskClient);
  ksession.getWorkItemManager().registerWorkItemHandler("Human Task", taskHandler);
 
  ksession.startProcess("com.sample.humantask");
}


The first Human Task was generated after execute the startProcess method, then I write the method completeTask1 as follows:

public static final void completeTask1() {
  TaskClient taskClient = new TaskClient(new MinaTaskClientConnectorExt("MinaConnector",
                    new MinaTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));
  taskClient.connect("127.0.0.1", 9123);
  
  BlockingTaskSummaryResponseHandler taskSummaryHandler = new BlockingTaskSummaryResponseHandler();
  List<String> groups = new ArrayList<String>();
  groups.add("sales");
  taskClient.getTasksAssignedAsPotentialOwner("sales-rep", groups, "en-UK", taskSummaryHandler);
  TaskSummary task1 = taskSummaryHandler.getResults().get(0);
  BlockingTaskOperationResponseHandler taskOperationHandler = new BlockingTaskOperationResponseHandler();
  taskClient.claim(task1.getId(), "sales-rep", groups, taskOperationHandler);
  taskOperationHandler = new BlockingTaskOperationResponseHandler();
  taskClient.start(task1.getId(), "sales-rep", taskOperationHandler);
  taskOperationHandler.waitTillDone(1000);
  taskOperationHandler = new BlockingTaskOperationResponseHandler();
  Map<String, Object> results = new HashMap<String, Object>();
  results.put("comment", "Agreed, existing laptop needs replacing");
  results.put("outcome", "Accept");
  ContentData contentData = new ContentData();
  contentData.setAccessType(AccessType.Inline);
  ByteArrayOutputStream bos = new ByteArrayOutputStream();
  ObjectOutputStream out;
  try {
          out = new ObjectOutputStream(bos);
          out.writeObject(results);
          out.close();
          contentData = new ContentData();
          contentData.setContent(bos.toByteArray());
          contentData.setAccessType(AccessType.Inline);
  } catch (IOException e) {
          e.printStackTrace();
  }
  taskClient.complete(task1.getId(), "sales-rep", contentData, taskOperationHandler);
  taskOperationHandler.waitTillDone(1000);
}

Execute the completeTask1 method,first Human Task was be completed in db,but the processinstance was not continue,task table screenshot as follows:
 http://community.jboss.org/servlet/JiveServlet/showImage/2-631013-17115/tasklist.png  http://community.jboss.org/servlet/JiveServlet/downloadImage/2-631013-17115/450-28/tasklist.png 
As you see,the first HumanTask status was completed,because processinstance was not continue,so no new HumanTask generate.If continue the processInstance will be generate new HumanTask.But there is no.I don't know why.

Thanks & Best Regards
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