[jboss-user] [JBoss Seam] - How to use jBPM built-in components?

[neoko]

I want to use Seam built-in components to deploy a xml file with a process definition. My code:

  | @Name("workflowHome")
  | @Transactional
  | public class WorkflowHome extends EntityHome<Workflow>
  | {
  | 
  |     @RequestParameter
  |     Long workflowId;
  | 
  |     private Workflow workflow;
  |     @In(required=false)
  |     Discipline discipline;
  |     @In(value="org.jboss.seam.core.jbpm")
  |     private Jbpm jbpm;
  | 
  |     @In(value="org.jboss.seam.core.jbpmContext",create=true)
  |     private JbpmContext context;
  | 
  | 
  |     @Override
  |     public Object getId()
  |     {
  |         if (workflowId==null)
  |         {
  |             return super.getId();
  |         }
  |         else
  |         {
  |             return workflowId;
  |         }
  |     }
  | 
  |     @Override
  |     public void create() {
  |         super.create();
  | 
  |     }
  | 
  |     @Factory("workflow")
  |     public Workflow initWorkflow(){
  |     	return getInstance();
  |     }
  | 
  |     protected Workflow createInstance() {
  |     	workflow = new Workflow();
  |     	discipline.getWorkflows().add(workflow);
  |     	return workflow;
  |     }
  | 
  |     public void deployProcess(){
  |     	String file = new String(workflow.getWorkflowFile());
  | 
  |     	try{
  |     		context.deployProcessDefinition(jbpm.getProcessDefinitionFromXml(file));
  |     	}finally{
  |     		context.close();
  |     	}
  |     }
  | 
  | }
  | 

What am I missing? Because I'm getting the following exceptions:

  | 03:08:44,372 ERROR [PhaseListenerManager] Exception in PhaseListener RENDER_RESPONSE(6) beforePhase.
  | java.lang.IllegalStateException: Could not commit transaction
  | 	at org.jboss.seam.jsf.AbstractSeamPhaseListener.commitOrRollback(AbstractSeamPhaseListener.java:306)
  | 	at org.jboss.seam.jsf.TransactionalSeamPhaseListener.handleTransactionsAfterPageActions(TransactionalSeamPhaseListener.java:47)
  | 	at org.jboss.seam.jsf.AbstractSeamPhaseListener.enterPage(AbstractSeamPhaseListener.java:258)
  | 	at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:192)
  | 	at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:53)
  | 	at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:70)
  | 	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:373)
  | 	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.jboss.seam.servlet.SeamMultipartFilter.doFilter(SeamMultipartFilter.java:35)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:46)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  | 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  | 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  | 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  | 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  | 	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  | 	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
  | 	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  | 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  | 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  | 	at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
  | 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  | 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  | 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  | 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  | 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  | 	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  | 	at java.lang.Thread.run(Thread.java:595)
  | Caused by: org.jboss.tm.JBossRollbackException: Unable to commit, tx=TransactionImpl:XidImpl[FormatId=257, GlobalId=desktop/102, BranchQual=, localId=102] status=STATUS_NO_TRANSACTION; - nested throwable: (org.hibernate.SessionException: Session is closed!)
  | 	at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:372)
  | 	at org.jboss.tm.TxManager.commit(TxManager.java:240)
  | 	at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:140)
  | 	at org.jboss.seam.jsf.AbstractSeamPhaseListener.commitOrRollback(AbstractSeamPhaseListener.java:295)
  | 	... 36 more
  | Caused by: org.hibernate.SessionException: Session is closed!
  | 	at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:49)
  | 	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:993)
  | 	at org.jboss.seam.core.ManagedJbpmContext.beforeCompletion(ManagedJbpmContext.java:95)
  | 	at org.jboss.tm.TransactionImpl.doBeforeCompletion(TransactionImpl.java:1491)
  | 	at org.jboss.tm.TransactionImpl.beforePrepare(TransactionImpl.java:1110)
  | 	at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:324)
  | 	... 39 more
  | 

Everything works fine if I deploy the process definition if I use this code instead:

  |         String name=null;
  |     	JbpmContext jbpmContext=null;
  |     	String file = new String(workflow.getWorkflowFile());
  |     	ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(file);
  | 
  |     	JbpmConfiguration jbpmConf = JbpmConfiguration.getInstance();
  |         jbpmContext = jbpmConf.createJbpmContext();
  | 
  |     	try {
  |         	jbpmContext.deployProcessDefinition(processDefinition);
  |         } finally {
  |           jbpmContext.close();
  |         }
  | 

I'd rather use the Seam components. I've been loonking for some similar problems in the forum and I don't know if it is the same problem as in http://jira.jboss.org/jira/browse/JBSEAM-798. If only anyone could help me!

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