2 Replies Latest reply on Mar 5, 2015 6:37 AM by wdfink

    Calling remote EJB from another Wildfly

    urr4
    urr4 Feb 20, 2015 8:48 AM

      Hi all,

      My current problem in general is, that i have two Wildfly 8.2.0Final instances running on my machine.
      One of them holds a restful application that triggers a stateless session bean SenderBean when it receives a GET.
      Afterwards, this stateless session bean should invoke a method from a remote stateless session bean       PrintBean, which is located on the other wildfly instance.

      I'll start of by explaining what i have done so far (maybe i missed something, i'm quite new to Java EE and Wildfly).

      I'm going to call the Wildfly instance with the SenderBean the Sender and the one with the PrintBean the Receiver.

      I created an Application user named Stefan with Password stefan, belonging to group guest on the Receiver. On the Sender, in the standalone-full.xml, i added a Security-Realm by putting

      <security-realm name="ejb-security-realm">
      

       <server-identities>
      

       <secret value="c3R1ZmFu"/>
      

       </server-identities>
      

      </security-realm>

      into the <security-realms> section. I also added a outbound-socket-binding by putting

      <outbound-socket-binding name="remote-ejb">
      

       <remote-destination host="localhost" port="8080"/>
      

      </outbound-socket-binding>

      into the <socket-binding-group ...> section. Last, i created an outbound-connection, by putting

      <outbound-connections>
      

       <remote-outbound-connection name="remote-ejb-connection" outbound-socket-binding-ref="remote-ejb" username="Stefan" security-realm="ejb-security-realm"> 
      

        <properties>
      

       <property name="SASL_POLICY_NOANONYMOUS" value="false"/>
      

       <property name="SSL_ENABLED" value="false"/>
      

       </properties>
      

       </remote-outbound-connection>
      

      </outbound-connections>

      into the <subsystem xmlns="urn:jboss:domain:remoting:2.0"> section.

      I start the Sender with the CLI command standalone.bat -c standalone-full.xml -Djboss.socket.binding.port-offset=100 -Djboss.node.name=Sender and the Receiver with standalone.bat -c standalone-full.xml -Djboss.node.name=Receiver.

      The Local Stateless Session Bean on the Sender is called SenderBean:

      @Stateless
      

      public class SenderBean implements SenderService { 
      

        
      

        @EJB(lookup="ejb:baseproject-ear-01.00.00-SNAPSHOT/testdomain-service-01.00.00-SNAPSHOT/Receiver/PrintBean!com.schubert.baseproject.testdomain.service.PrintService")
      

       private PrintService printer; 
      

        private static final Logger logger = Logger.getLogger(SenderBean.class.getSimpleName());
      

       public void send(){
      

       logger.info("Trying to invoke"); this.invoke();
      

       }
      

       
      

       private void invoke() {
      

       logger.info("Printing using remote ejb: "+s.print("Markus"));
      

       }
      

      }

      And the Receiver contains the PrintBean:

      @Stateless
      

      @Remote(PrintService.class)
      

      public class PrintBean implements PrintService { 
      

       @Override
      

       public String print(String name) {
      

       return "Hello " + name;
      

       }
      

      }

      the problem now is, I always get a IllegalStateException that says EJBCLIENT000025: No EJB receiver available for handling ...

      Am I maybe doing something very wrong? I am fairly new to EJBs and Wildfly. You can find the project setup on Urr4/wildfly-communication · GitHub