[JBoss Seam] - How to use jBPM built-in components?
by 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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19Â years, 1Â month