/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.iiop;
import org.jboss.as.ejb3.iiop.handle.HandleDelegateImpl;
import org.jboss.as.jacorb.service.CorbaORBService;
import javax.ejb.EJBHome;
import javax.ejb.HomeHandle;
import javax.ejb.spi.HandleDelegate;
import javax.rmi.CORBA.Stub;
import javax.rmi.PortableRemoteObject;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.rmi.RemoteException;
/**
* A CORBA-based EJB home handle implementation.
*
* @author <a href="mailto:rickard.oberg@telkel.com">Rickard Öberg</a>.
* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
* @author <a href="mailto:reverbel@ime.usp.br">Francisco Reverbel</a>
* @author adrian@jboss.org
* @version $Revision: 65794 $
*/
public class HomeHandleImplIIOP implements HomeHandle {
/**
* @since 4.2.0
*/
static final long serialVersionUID = 8652819695513956661L;
/**
* This handle encapsulates an stringfied CORBA reference for an
* <code>EJBHome</code>.
*/
private String ior;
/**
* The stub class
*/
private transient Class<?> stubClass = EJBHome.class;
/**
* Constructs a <code>HomeHandleImplIIOP</code>.
*
* @param ior An stringfied CORBA reference for an <code>EJBHome</code>.
*/
public HomeHandleImplIIOP(final String ior) {
this.ior = ior;
}
/**
* Constructs a <tt>HomeHandleImplIIOP</tt>.
*
* @param home An <code>EJBHome</code>.
*/
public HomeHandleImplIIOP(final EJBHome home) {
this((org.omg.CORBA.Object) home);
}
/**
* Constructs a <tt>HomeHandleImplIIOP</tt>.
*
* @param home A CORBA reference for an <code>EJBHome</code>.
*/
public HomeHandleImplIIOP(final org.omg.CORBA.Object home) {
this.ior = CorbaORBService.getCurrent().object_to_string(home);
this.stubClass = home.getClass();
}
/**
* Obtains the <code>EJBHome</code> represented by this home handle.
*
* @return a reference to an <code>EJBHome</code>.
* @throws java.rmi.RemoteException
*/
public EJBHome getEJBHome() throws RemoteException {
try {
final org.omg.CORBA.Object obj = CorbaORBService.getCurrent().string_to_object(ior);
return narrow(obj);
} catch (RemoteException e) {
throw e;
} catch (Exception e) {
throw new RemoteException("Could not get EJBHome from HomeHandle", e);
}
}
private EJBHome narrow(org.omg.CORBA.Object obj) throws ClassCastException, RemoteException {
// Null object - this should probably throw some kind of error?
if (obj == null)
return null;
// Already the correct type
if (stubClass.isAssignableFrom(obj.getClass()))
return (EJBHome) obj;
// Backwards compatibility - almost certainly wrong!
if (stubClass == EJBHome.class)
return (EJBHome) PortableRemoteObject.narrow(obj, EJBHome.class);
// Create the stub from the stub class
try {
final Stub stub = (Stub) stubClass.newInstance();
stub._set_delegate(((org.omg.CORBA.portable.ObjectImpl) obj)._get_delegate());
return (EJBHome) stub;
} catch (Exception e) {
throw new RemoteException("Error creating stub", e);
}
}
private void writeObject(final ObjectOutputStream oostream) throws IOException {
final HandleDelegate delegate = HandleDelegateImpl.getDelegate();
delegate.writeEJBHome(getEJBHome(), oostream);
}
private void readObject(final ObjectInputStream oistream) throws IOException, ClassNotFoundException {
final HandleDelegate delegate = HandleDelegateImpl.getDelegate();
final EJBHome obj = delegate.readEJBHome(oistream);
this.ior = CorbaORBService.getCurrent().object_to_string((org.omg.CORBA.Object) obj);
this.stubClass = obj.getClass();
}
}