Hello everybody,
I'm trying to simulate a jBPM workflow handler for a long running task (In truth this task can last some seconds or some hours).
In jBPM 5.4 I handled this issue launching my job in a separate thread and completing the workItem after resuming the KnowledgeSession.
Now I'm migrating to jBPM6 and I'd love to know REST API and let jBPM manage its sessions, so I implemented my executeWorkItem method in a class implementing WorkItemHandler interface:
public void executeWorkItem(WorkItem workItem, WorkItemManager manager) {
final long pid = workItem.getProcessInstanceId();
trace.info("this is RunTaskHandler for process " + pid);
final long wiId = workItem.getId();
trace.info("this is the wiId " + wiId);
new Thread(new Runnable() {
public void run() {
int procRes = -1;
Map<String, Object> result = new HashMap<String, Object>();
try {
trace.info("I am simulating a LongRunning Task!!");
result.put("RunTaskExitValue", new Integer(0));
Thread.sleep(100000);
JBpmRemoteServices.getInstance().completeWorkItemViaRestAPI(wiId, result);
trace.info("thread completed");
} catch (Exception e) {
throw new RuntimeException("Error encountered while invoking ws operation asynchronously", e);
}
}
}).start();
}
and completeworkitemViaRESTAPI:
public void completeWorkItemViaRestAPI(long workItemId, Map<String, Object> results) throws MalformedURLException {
KieSession ksession = engine.getKieSession();
trace.info("KieSession created!");
WorkItemManager workItemManager = ksession.getWorkItemManager();
trace.info("WorkItemManager created!");
workItemManager.completeWorkItem(workItemId, results);
}
On running my process from the console I get the following trace:
18:50:43,754 INFO [*****] (http-10.21.30.73-10.21.30.73-8080-2) this is LogTaskHandler for process 230
18:50:43,794 INFO [stdout] (http-10.21.30.73-10.21.30.73-8080-2) Preparing parameters
18:50:43,808 INFO [*****] (http-10.21.30.73-10.21.30.73-8080-2) this is RunTaskHandler for process 230
18:50:43,835 INFO [******] (http-10.21.30.73-10.21.30.73-8080-2) this is the wiId 388
18:50:43,877 ERROR [org.jboss.as.txn] (http-10.21.30.73-10.21.30.73-8080-2) JBAS010152: APPLICATION ERROR: transaction still active in request with status 0
Can anyone help me?
