3:46 a.m.
Good morning folks!
Sorry but it's me pestering the forum with my questions again. ;) I tried to implement
a kind of 4-eyes-approval where the decisions of the 2 people can be made concurrently. I
had trouble with this process because when I tried to start a new instance in the
jbpm-console I did not see a new instance. Furthermore when I tried to view the 2
users' tasklists to check if the tasks had been created I got an exception:
| org.jboss.resteasy.spi.UnhandledException: org.hibernate.LazyInitializationException:
could not initialize proxy - no Session
|
I thought this was a bug already reported but I don't manage to find the matching
posts and the matching issue in JIRA anymore. I was sure there was a thing partly related
to the engine and partly related to the console. At first I thought it was just an issue
with the console because I made a unit test for the process and it passed. Afterwards I
was using the API of the Process Engine instance used by the console to go through the
process without using the console and it did not work. Buit when the unit test passes it
should run on the server as well (in my case Tomcat), or not?
Process definition and unit test follow. I am using jBPM 4.1 running on Tomcat on a
Windows Server System.
| <?xml version="1.0" encoding="UTF-8"?>
|
| <process name="parallel" xmlns="http://jbpm.org/4.0/jpdl"
key="parallel" version="3">
| <start g="27,23,48,48" name="start1">
| <transition g="-49,-21" name="to fork1"
to="fork1"/>
| </start>
| <end ends="process-instance" g="252,226,48,48"
name="end1"/>
| <fork g="173,22,48,48" name="fork1">
| <transition g="-50,-21" name="to task1"
to="task1"/>
| <transition g="8,-21" name="to task2"
to="task2"/>
| </fork>
| <task assignee="mike" g="76,121,92,52"
name="task1">
| <transition g="-35,-41" name="no"
to="end1"/>
| <transition g="-39,-11" name="yes"
to="join1"/>
| </task>
| <task assignee="peter" g="228,122,92,52"
name="task2">
| <transition g="13,-16" name="no"
to="end1"/>
| <transition g="-26,30" name="yes"
to="join1"/>
| </task>
| <state g="82,314,92,52" name="approved">
| <transition g="-48,-21" name="to end1"
to="end1">
| <timer duedate="3 minutes"/>
| </transition>
| </state>
| <join name="join1" g="102,225,48,48">
| <transition g="-73,-21" name="to approved"
to="approved"/>
| </join>
| </process>
|
| import java.util.Iterator;
| import java.util.List;
| import java.util.Set;
|
| import org.jbpm.api.ProcessInstance;
| import org.jbpm.api.job.Job;
| import org.jbpm.api.task.Task;
| import org.jbpm.test.JbpmTestCase;
|
|
| public class MeinTestfall extends JbpmTestCase {
|
| String deploymentId;
|
| protected void setUp() throws Exception {
| super.setUp();
|
| deploymentId = repositoryService.createDeployment()
| .addResourceFromClasspath("parallel.jpdl.xml")
| .deploy();
| }
|
| protected void tearDown() throws Exception {
| repositoryService.deleteDeploymentCascade(deploymentId);
|
| super.tearDown();
| }
|
| public void testProcess() {
|
| ProcessInstance processInstance =
executionService.startProcessInstanceById("parallel-2");
|
| List<Task> tasksMike = taskService.findPersonalTasks("mike");
| List<Task> tasksPeter = taskService.findPersonalTasks("peter");
|
| if(tasksMike.size() == 0) {
| fail();
| }
|
| if(tasksPeter.size() == 0) {
| fail();
| }
|
| Set<String> activities = processInstance.findActiveActivityNames();
|
| Iterator<String> iterator = activities.iterator();
|
| while(iterator.hasNext()) {
| System.out.println(iterator.next());
| }
|
| taskService.completeTask(tasksMike.get(0).getId(), "yes");
| taskService.completeTask(tasksPeter.get(0).getId(), "yes");
|
| processInstance =
executionService.findProcessInstanceById(processInstance.getId());
|
| activities = processInstance.findActiveActivityNames();
| iterator = activities.iterator();
|
| while(iterator.hasNext()) {
| System.out.println(iterator.next());
| }
|
| assertTrue(processInstance.isActive("approved"));
|
| // executing the job which would normally be executed by the JobExecutor
| Job job = managementService.createJobQuery()
| .timers()
| .processInstanceId(processInstance.getId())
| .uniqueResult();
|
| managementService.executeJob(job.getId());
|
| // process instance should be finished right now
| assertNull(executionService.findProcessInstanceById(processInstance.getId()));
|
| }
|
| }
|
|
Hints??
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