5 Replies Latest reply on Jan 14, 2008 9:12 AM by Ronald van Kuijk

    Invoke a WebService from ActionHandler

    Domenico D'Addabbo Newbie

      Hi all.
      I'm trying to invoke a web service from my jBoss/jBPM process.
      As Ronald suggests in this post:
      http://www.jboss.com/index.html?module=bb&op=viewtopic&t=70723
      I write an actionhandler which invokes the webservice and then I associate it on a node-enter event of a node.
      But when I run the process from jBoss-jBpm console I get an exception

      description The server encountered an internal error () that prevented it from fulfilling this request.
      
      exception
      
      javax.servlet.ServletException: Servlet execution threw an exception
       org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
      
      root cause
      
      java.lang.NoClassDefFoundError: org/apache/axis/client/Service
       com.Process_3.WebServiceAction.execute(WebServiceAction.java:22)
       org.jbpm.graph.def.Action.execute(Action.java:122)
       org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:264)
       org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:220)
       org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:190)
       org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:174)
       org.jbpm.graph.def.Node.enter(Node.java:303)
       org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>)
       net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
       org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163)
       org.jbpm.graph.def.Node$$EnhancerByCGLIB$$ad2fc36c.enter(<generated>)
       org.jbpm.graph.def.Transition.take(Transition.java:151)
       org.jbpm.graph.def.Node.leave(Node.java:394)
       org.jbpm.graph.node.TaskNode.leave(TaskNode.java:209)
       org.jbpm.graph.node.TaskNode$$FastClassByCGLIB$$923668a4.invoke(<generated>)
       net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
       org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163)
       org.jbpm.graph.node.TaskNode$$EnhancerByCGLIB$$e933732a.leave(<generated>)
       org.jbpm.graph.exe.Token.signal(Token.java:195)
       org.jbpm.graph.exe.Token.signal(Token.java:140)
       org.jbpm.graph.exe.Token$$FastClassByCGLIB$$74df1c6e.invoke(<generated>)
       net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
       org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:163)
       org.jbpm.graph.exe.Token$$EnhancerByCGLIB$$dc8930e8.signal(<generated>)
       org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:485)
       org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:399)
       org.jbpm.jsf.core.action.CompleteTaskActionListener.handleAction(CompleteTaskActionListener.java:47)
       org.jbpm.jsf.core.impl.JbpmActionListenerWrapper.processAction(JbpmActionListenerWrapper.java:82)
       javax.faces.event.ActionEvent.processListener(ActionEvent.java:77)
       javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:758)
       javax.faces.component.UICommand.broadcast(UICommand.java:368)
       org.jbpm.jsf.taskform.ui.UITaskFormButtonBase.broadcast(UITaskFormButtonBase.java:56)
       javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:448)
       javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:752)
       com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
       com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:248)
       com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
       javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
       org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
      


      This is the ActionHandler code:
      package com.Process_3;
      
      import org.jbpm.graph.def.ActionHandler;
      import org.jbpm.graph.exe.ExecutionContext;
      import org.apache.axis.client.Call;
      import org.apache.axis.client.Service;
      import org.apache.axis.encoding.XMLType;
      
      
      import javax.xml.rpc.ParameterMode;
      
      
      public class WebServiceAction implements ActionHandler {
       private static final long serialVersionUID = 1L;
      
       public void execute(ExecutionContext executionContext) throws Exception {
       // Make the call
       String method = new String("Get_CodFisFromLocalita");
       String endpoint = "http://www.nexusonline.it:8088/4DWSDL";
       String city = (String) ("Milano");
      
       Service service = new Service();
       Call call = (Call) service.createCall();
      
       call.setTargetEndpointAddress(new java.net.URL(endpoint));
       call.setOperationName( method );
       call.addParameter(city, XMLType.XSD_STRING, ParameterMode.IN);
       call.setReturnType(XMLType.XSD_STRING);
      
       String ret = (String) call.invoke( new Object[] { city } );
      
       executionContext.getContextInstance().createVariable("sigla", ret);
      
       System.out.println("Result: " + ret);
       }
      
      }
      


      Note:
      I deploy the process by mean jBPD Eclipse plugin.

      Any help will be appreciated.
      Thank you!