com.sun.jndi.toolkit.corba
Class CorbaUtils

java.lang.Object
  com.sun.jndi.toolkit.corba.CorbaUtils

public class CorbaUtils
extends Object

Contains utilities for performing CORBA-related tasks: 1. Get the org.omg.CORBA.Object for a java.rmi.Remote object. 2. Create an ORB to use for a given host/port, and environment properties.

Constructor Summary

CorbaUtils()

Method Summary

static ORB	getOrb(String server, int port, Hashtable env) Get ORB using given server and port number, and properties from environment.
static Object	remoteToCorba(Remote remoteObj, ORB orb) Returns the CORBA object reference associated with a Remote object by using the javax.rmi.CORBA package.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CorbaUtils

public CorbaUtils()

Method Detail

remoteToCorba

public static Object remoteToCorba(Remote remoteObj,
                                   ORB orb)
                            throws ClassNotFoundException,
                                   ConfigurationException

Returns the CORBA object reference associated with a Remote object by using the javax.rmi.CORBA package.

Use reflection to avoid hard dependencies on javax.rmi.CORBA package. This method effective does the following:

 java.lang.Object stub;
 try {
     stub = PortableRemoteObject.toStub(remoteObj);
 } catch (Exception e) {
     throw new ConfigurationException("Object not exported or not found");
 }
 if (!(stub instanceof javax.rmi.CORBA.Stub)) {
     return null; // JRMP impl or JRMP stub
 }
 try {
     ((javax.rmi.CORBA.Stub)stub).connect(orb);  // try to connect IIOP stub
 } catch (RemoteException e) {
     // ignore 'already connected' error
 }
 return (javax.rmi.CORBA.Stub)stub;


Parameters:
remoteObj - The non-null remote object for
orb - The non-null ORB to connect the remote object to
Returns:
The CORBA Object for remoteObj; null if remoteObj
                 is a JRMP implementation or JRMP stub.
Throws:
ClassNotFoundException - The RMI-IIOP package is not available
ConfigurationException - The CORBA Object cannot be obtained
         because of configuration problems.

getOrb

public static ORB getOrb(String server,
                         int port,
                         Hashtable env)

Get ORB using given server and port number, and properties from environment.

Parameters:

server - Possibly null server; if null means use default; For applet, it is the applet host; for app, it is localhost.

port - Port number, -1 means default port

env - Possibly null environment. Contains environment properties. Could contain ORB itself; or applet used for initializing ORB. Use all String properties from env for initializing ORB

Returns:

A non-null ORB.