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Struts & Hibernate
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| | | - ActionHandler and ClassCastException | - ActionHandler and ClassCastException 2007-07-15 - By aledbf
Back
Hi, I'm a new user en jbpm and I have one problem executing an Action.
Here is the error
| DEBUG - JbpmContextInfo - creating jbpm context with service
factories '[tx, message, scheduler, logging, persistence, authentication]'
| DEBUG - JbpmContext - creating org.jbpm.JbpmContext@(protected)
| DEBUG - bPersistenceServiceFactory - creating persistence service
| DEBUG - DbPersistenceService - creating hibernate session
| DEBUG - DbPersistenceService - beginning hibernate transaction
| DEBUG - DbPersistenceService - begun hibernate transaction org
.hibernate.transaction.JTATransaction@(protected)
| DEBUG - GraphElement - event 'before-signal' on 'StartState
(Solicitar Vacaciones)' for 'Token(/)'
| DEBUG - GraphElement - event 'node-leave' on 'StartState
(Solicitar Vacaciones)' for 'Token(/)'
| DEBUG - GraphElement - event 'transition' on 'Transition
(ObtenerDias)' for 'Token(/)'
| DEBUG - GraphElement - event 'node-enter' on 'Node(Determinar
Dias Disponibles)' for 'Token(/)'
| DEBUG - GraphElement - executing action 'action
[DeterminarDias]'
| DEBUG - Token - token[2] is locked by token[2]
| DEBUG - Token - token[2] is unlocked by token[2]
| ERROR - GraphElement - action threw exception: jbpm
.SpringInvocationHandler
| java.lang.ClassCastException  : jbpm.SpringInvocationHandler
| at org.jbpm.graph.def.Action.execute(Action.java:121)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java
:255)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java
:220)
| at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent
(GraphElement.java:190)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:174)
| at org.jbpm.graph.def.Node.enter(Node.java:302)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method (Method.java:585)
| at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer
(CGLIBLazyInitializer.java:157)
| at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$a160d766.enter(
<generated>)
| at org.jbpm.graph.def.Transition.take(Transition.java:151)
| at org.jbpm.graph.def.Node.leave(Node.java:393)
| at org.jbpm.graph.node.StartState.leave(StartState.java:70)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method (Method.java:585)
| at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer
(CGLIBLazyInitializer.java:157)
| at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$a160d766.leave(
<generated>)
| at org.jbpm.graph.exe.Token.signal(Token.java:194)
| at org.jbpm.graph.exe.Token.signal(Token.java:157)
| at org.jbpm.jsf.core.action.SignalActionListener.handleAction
(SignalActionListener.java:56)
| at org.jbpm.jsf.core.impl.JbpmActionListenerWrapper.processAction
(JbpmActionListenerWrapper.java:82)
| at javax.faces.event.ActionEvent (ActionEvent.java
:77)
| at javax.faces.component.UIComponentBase (UIComponentBase
.java:758)
| at javax.faces.component.UICommand (UICommand.java:368)
| at javax.faces.component.UIViewRoot (UIViewRoot.java
:448)
| at javax.faces.component.UIViewRoot (UIViewRoot
.java:752)
| at com.sun.faces.lifecycle.InvokeApplicationPhase.execute
(InvokeApplicationPhase.java:97)
| at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java
:248)
| at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java
:117)
| at javax.faces.webapp.FacesServlet (FacesServlet.java:244)
| at org.apache.catalina.core.ApplicationFilterChain
(ApplicationFilterChain.java:252)
| at org.apache.catalina.core.ApplicationFilterChain
(ApplicationFilterChain.java:173)
| at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter
(ReplyHeaderFilter.java:96)
| at org.apache.catalina.core.ApplicationFilterChain
(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain
(ApplicationFilterChain.java:173)
| at org.apache.catalina.core.StandardWrapperValve
(StandardWrapperValve.java:213)
| at org.apache.catalina.core.StandardContextValve
(StandardContextValve.java:178)
| at org.jboss.web.tomcat.security.SecurityAssociationValve
(SecurityAssociationValve.java:175)
| at org.apache.catalina.authenticator.AuthenticatorBase
(AuthenticatorBase.java:524)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke
(JaccContextValve.java:74)
| at org.apache.catalina.core.StandardHostValve
(StandardHostValve.java:126)
| at org.apache.catalina.valves.ErrorReportValve
(ErrorReportValve.java:105)
| at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke
(CachedConnectionValve.java:156)
| at org.apache.catalina.core.StandardEngineValve
(StandardEngineValve.java:107)
| at org.apache.catalina.connector.CoyoteAdapter
(CoyoteAdapter.java:148)
| at org.apache.coyote.http11.Http11Processor (Http11Processor
.java:869)
| at org.apache.coyote.http11.Http11BaseProtocol
$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
| at org.apache.tomcat.util.net.PoolTcpEndpoint
(PoolTcpEndpoint.java:527)
| at org.apache.tomcat.util.net.MasterSlaveWorkerThread
(MasterSlaveWorkerThread.java:112)
| at java.lang.Thread (Thread.java:613)
| DEBUG - JbpmContext - closing JbpmContext
| DEBUG - Services - executing default save operations
| DEBUG - HibernateSaveOperation - saving process instance
| DEBUG - SaveLogsOperation - flushing logs to logging service.
| DEBUG - CascadeSaveOperation - cascading save of 'org.jbpm.graph.exe
.ProcessInstance@(protected)'
| DEBUG - Services - closing service 'persistence': org
.jbpm.persistence.db.DbPersistenceService@(protected)
| DEBUG - DbPersistenceService - rolling back hibernate transaction
| DEBUG - DbPersistenceService - closing hibernate session
|
and this is the code of the handler:
|
|
|
| public class SpringInvocationHandler implements ActionHandler
| {
|
| private String oResultVariable;
|
| private String sWSServiceUrl;
|
| private String sBeanName;
|
| private String sExtraParam;
|
| /**
| * @(protected) org.jbpm.graph.def.ActionHandler#execute(org.jbpm.graph.exe
.ExecutionContext)
| */
| public void execute( final ExecutionContext executionContext )
| {
| try
| {
| final Map<Object, Object> oProcessParams =
| (Map) executionContext.getProcessInstance()
.getContextInstance().getVariables();
|
| if (sExtraParam != null)
| {
| String[] aMapContent = sExtraParam.split( "=" );
| if (aMapContent != null && aMapContent.length == 2)
| {
| oProcessParams.put( aMapContent[0], aMapContent[1] );
| }
| }
|
| final String sInstanceId =
| String.valueOf( executionContext.getToken().getId() );
| final String sProcessName =
| executionContext.getToken().getNode().getName();
| final Service serviceModel =
| new ObjectServiceFactory().create( IWSFrontController.class
);
| final XFire xfire = XFireFactory.newInstance().getXFire();
| final XFireProxyFactory factory = new XFireProxyFactory( xfire
);
|
| try
| {
| final IWSFrontController oSpringClient =
| (IWSFrontController) factory.create( serviceModel,
sWSServiceUrl );
| final Object oResult =
| oSpringClient.execute( sBeanName, sInstanceId,
sProcessName, oProcessParams );
| executionContext.setVariable( oResultVariable, oResult );
| } catch (Exception e)
| {
| e.printStackTrace();
| }
| } catch (Exception e)
| {
| e.printStackTrace();
| }
| }
| ...
|
| (plus the getter and setter of the fields).
|
I try the config-type field and bean whith the same result.
If I see the source code of Action (line 151) the error belong a manual cast
and later execution of the handler. But if I try this:
| String sConf =
| "<oResultVariable xmlns=\"urn:jbpm.org:jpdl-3 (See http://pdl-3.ora-code.com).2\">result<
/oResultVariable><sBeanName xmlns=\"urn:jbpm.org:jpdl-3 (See http://pdl-3.ora-code.com).2\">remaingTimesvc<
/sBeanName><sWSServiceUrl xmlns=\"urn:jbpm.org:jpdl-3 (See http://pdl-3.ora-code.com).2\">http://10.0.0.126:8080
/services/WSFrontController</sWSServiceUrl>";
| Object o =
| new FieldInstantiator().instantiate( jbpm
.SpringInvocationHandler.class, sConf );
| ActionHandler o1 = (ActionHandler) o;
|
works fine.
The jbpm version is 3.2.1.
Any idea?
Thanks in advice.
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic
&p=4064376#4064376
Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode
=reply&p=4064376
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