I know I'm hard into understanding... But I need this feature... Therefore I'm
sorry for my insistence!
Ok, summarize, I need a web service that read the state of the tasks assign to
a certain actor. Ex: the actor "bob" have some tasks in the list of own tasks,
and he want them to know through web service, so can do something and pass
over...
I've followed the example "seambay" written by Shane, like you can read below.
| @Name("testJBPM")
| @Restrict("#{identity.loggedIn}")
| public class WfWebMethod implements Serializable{
|
| private static final long serialVersionUID = 1L;
|
| @In EntityManager entityManager;
|
|
| @SuppressWarnings("unchecked")
| public String getDocumenti(){
|
| ManagedJbpmContext bp =
(ManagedJbpmContext)Component.getInstance("jbpmContext", true);
|
| ...
| ...
| ...
|
| return stringa.toString() ;
| }
|
|
| public void end() {
|
| }
|
| }
|
|
But when I start the ws client, I receive the follow trace error in the trace
of the jboss AS 4.2.0
| 10:37:29,369 ERROR [SOAPFaultHelperJAXWS] SOAP request exception
| javax.ejb.EJBException: java.util.EmptyStackException
| at
org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63)
| at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
| at
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
| at
org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:214)
| at
org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:184)
| at
org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:174)
| at
org.jboss.ws.integration.jboss42.ServiceEndpointInvokerEJB3.invokeServiceEndpointInstance(ServiceEndpointInvokerEJB3.java:114)
| at
org.jboss.ws.core.server.AbstractServiceEndpointInvoker.invoke(AbstractServiceEndpointInvoker.java:207)
| at
org.jboss.ws.core.server.ServiceEndpoint.processRequest(ServiceEndpoint.java:212)
| at
org.jboss.ws.core.server.ServiceEndpointManager.processRequest(ServiceEndpointManager.java:448)
| at
org.jboss.ws.core.server.AbstractServiceEndpointServlet.doPost(AbstractServiceEndpointServlet.java:114)
| at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
| at
org.jboss.ws.core.server.AbstractServiceEndpointServlet.service(AbstractServiceEndpointServlet.java:75)
| at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
| at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
| at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
| at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
| at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
| at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
| at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
| at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
| at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
| at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
| at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
| at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: java.util.EmptyStackException
| at java.util.Stack.peek(Stack.java:79)
| at
org.jboss.seam.transaction.Transaction.registerSynchronization(Transaction.java:75)
| at
org.jboss.seam.transaction.UTTransaction.registerSynchronization(UTTransaction.java:86)
| at
org.jboss.seam.bpm.ManagedJbpmContext.joinTransaction(ManagedJbpmContext.java:91)
|
and in the web service client:
| Exception in thread "main" javax.xml.ws.soap.SOAPFaultException:
java.util.EmptyStackException
| at
org.jboss.ws.core.jaxws.SOAPFaultHelperJAXWS.getSOAPFaultException(SOAPFaultHelperJAXWS.java:70)
| at
org.jboss.ws.core.jaxws.binding.SOAP11BindingJAXWS.throwFaultException(SOAP11BindingJAXWS.java:109)
| at
org.jboss.ws.core.CommonSOAPBinding.unbindResponseMessage(CommonSOAPBinding.java:531)
| at org.jboss.ws.core.CommonClient.invoke(CommonClient.java:356)
| at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:230)
| at
org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:164)
| at
org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:150)
| at $Proxy15.documenti(Unknown Source)
| at com.cesaco.wsclient.WsClient.main(WsClient.java:14)
|
Otherwise If I get some other seam component I don't receive none error. It's
all ok
|
| @Name("testOther")
| @Restrict("#{identity.loggedIn}")
| public class WfWebMethod implements Serializable{
|
| private static final long serialVersionUID = 1L;
|
| @In EntityManager entityManager;
|
|
| @SuppressWarnings("unchecked")
| public String getDocumenti(){
|
|
| StringBuffer stringa = new StringBuffer();
|
|
| List<Documento> documenti = entityManager.createQuery(
| "select doc from Documento doc ").getResultList();
|
|
| for (Iterator iter = documenti .iterator(); iter.hasNext();) {
|
| Documento element = (Documento) iter.next();
| stringa.append(element.getNumass() + " - " +
element.getNumdoc() + " - " + element.getRegdoc());
| Collection<Riga> righe = element.getRighe();
| for (Iterator iterator = righe.iterator();
iterator.hasNext();) {
| Riga riga = (Riga) iterator.next();
| stringa.append(" " + riga.getCodart() +
" - " + riga.getPezzi() + "\n\r" );
| }
| }
|
| return stringa.toString() ;
| }
|
|
| public void end() {
|
| }
|
| }
|
|
So, seen that I'm very hopeless and confused about this, I've conceived of make
some scheduled work with quartz, in to SEAM application, that read the
taskinstance and wrote the task list in a table, so read with ws...
Oh, dear me, what a mess!!!
Thanks again
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