Name: rm29839 Date: 05/27/98


The following works fine when the IDL compiler is
used with the -fno-portable flag. Otherwise I get
a marshalling error. Launch the name service,
then launch the receiver, then launch the sender.
When the sender tries to send a Data instance, a
marshalling error occurs. Note that the getName
method of the receiver works fine. It's the Data
transfer that doesn't work.

Here's the IDL:

   struct Data {
      string name;
      long a, b, c, d, e, f, g, h, i;
   };


   interface Receiver {
      string getName();
      void receiveData(in Data val);
   };


Here's the ReceiverImpl.java code:

import java.util.Properties;
import org.omg.CORBA.Any;
import org.omg.CORBA.ORB;
import org.omg.CosNaming.*;


public class ReceiverImpl extends _ReceiverImplBase {

   public ReceiverImpl() { }

   public String getName() {
      System.out.println("I'm Daffy.");
      return "Daffy Duck";
   }

   public void receiveData(Data d) {
      System.out.println("Receiver received data");
      System.out.println(" " + d.name + " " + d.a + " " + d.b + " " + d.c +
                                          " " + d.d + " " + d.e + " " + d.f +
                                          " " + d.g + " " + d.h + " " + d.i);

      System.out.println("Receiver extracted data");
   }

   public static void main(String args[]) {

      Properties props = new Properties();
      props.put("org.omg.CORBA.ORBInitialPort", Sender.PortNumber);
      ORB orb = ORB.init(args, props);

      ReceiverImpl r = new ReceiverImpl();
      orb.connect(r);
      bind(r, orb);

      hangOut();
   }

   public static void hangOut() {
      // Now just hang out.
      //
      java.lang.Object sync = new java.lang.Object();
      synchronized (sync) {
         try {
            sync.wait();
         } catch (InterruptedException e) {
            System.err.println("Server interrupted.");
         }
      }
   }

   public static void bind(ReceiverImpl r, ORB orb) {
      // Now try to register with the name server.
      //
      org.omg.CORBA.Object wideNSRef = null;

      try {
         wideNSRef = orb.resolve_initial_references("NameService");
      } catch (Exception e) {
         System.out.println("Cannot find the CORBA Name Service");
         System.exit(1);
      }

      NamingContext namingContext = NamingContextHelper.narrow(wideNSRef);
      NameComponent serverNC = new NameComponent(Sender.ServerName, "");

      NameComponent[] path = {serverNC};

      try {
         namingContext.rebind(path, r);
      } catch (Exception e) {
         // could be a number of exceptions here from CosNaming
         // InvalidName, CannotProceed, NotFound
         //
         System.err.println("Cannot bind server in name server:\n" + e);
         System.exit(1);
      }

   }

}



Here is the Sender.java code:

import java.util.Properties;

import org.omg.CORBA.ORB;
import org.omg.CosNaming.*;

public class Sender {

   final public static String ServerName = "DaffyFactory";
   final public static String PortNumber = "1050";




   //////////////////////////////////////////////////////////////////////
   // Main Method
   //////////////////////////////////////////////////////////////////////

   public static void main(String args[]) {
      Properties props = new Properties();
      props.put("org.omg.CORBA.ORBInitialPort", PortNumber);
      ORB orb = ORB.init(args, props);
      Data d = new Data("DDD", 1, 2, 3, 4, 5, 6, 7, 8, 9);

      Receiver receiver = getReceiver(orb);
      System.out.println("Receiver is " + receiver.getName());

      System.out.print("Sender sending data:");
      System.out.println(" " + d.name + " " + d.a + " " + d.b + " " + d.c +
                                          " " + d.d + " " + d.e + " " + d.f +
                                          " " + d.g + " " + d.h + " " + d.i);
      receiver.receiveData(d);
   }


   static Receiver getReceiver(ORB orb) {
      org.omg.CORBA.Object wideNSRef = null;
      Receiver f = null;

      try {
         wideNSRef = orb.resolve_initial_references("NameService");
      } catch (Exception e) {
         System.out.println("Cannot find the CORBA Name Service");
         System.exit(1);
      }

      NamingContext namingContext = NamingContextHelper.narrow(wideNSRef);
      NameComponent senderNC = new NameComponent(ServerName, "");
      NameComponent[] path = {senderNC};

      try {
         f = ReceiverHelper.narrow( namingContext.resolve(path) );
      } catch (Exception e) {
         System.out.println("Cannot bind to " + ServerName);
         System.out.println(e);
         System.exit(1);
      }

      return f;
   }

}


Here is execution:

Receiver output:

I'm Daffy.



Sender output:

Receiver is Daffy Duck
Sender sending data: DDD 1 2 3 4 5 6 7 8 9
org.omg.CORBA.MARSHAL: minor code: 0 completed: No
        at java.lang.Class.newInstance(Native Method)
        at com.sun.CORBA.iiop.ReplyMessage.getSystemException(ReplyMessage.java:73)
        at com.sun.CORBA.iiop.Generic.invoke(Generic.java:137)
        at com.sun.CORBA.iiop.RequestImpl.doInvocation(RequestImpl.java:352)
        at com.sun.CORBA.iiop.RequestImpl.invoke(RequestImpl.java:216)
        at _ReceiverStub.receiveData(_ReceiverStub.java:40)
        at Sender.main(Sender.java:31)
(Review ID: 30478)
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