Package org.jboss.jms.wireformat

Source Code of org.jboss.jms.wireformat.PolledCallbacksDelivery

/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.jms.wireformat;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.jboss.logging.Logger;
import org.jboss.remoting.InvocationResponse;
import org.jboss.remoting.callback.Callback;

/**
* A PolledCallbacksDelivery
*
* @author <a href="mailto:tim.fox@jboss.com">Tim Fox</a>
* @version <tt>$Revision: 2304 $</tt>
*
* $Id: PolledCallbacksDelivery.java 2304 2007-02-13 23:43:15Z clebert.suconic@jboss.com $
*
*/
public class PolledCallbacksDelivery extends PacketSupport
{
   private static final Logger log = Logger.getLogger(PolledCallbacksDelivery.class);
  
  
   private List callbacks;
  
   private String sessionID;
  
   public PolledCallbacksDelivery()
   {     
   }
  
   public PolledCallbacksDelivery(List callbacks, String sessionID)
   {
      super(PacketSupport.POLLEDCALLBACKS_DELIVERY);
     
      this.callbacks = callbacks;
     
      this.sessionID = sessionID;
   }

   public void read(DataInputStream is) throws Exception
   {
      sessionID = is.readUTF();
     
      int len = is.readInt();
     
      callbacks = new ArrayList(len);
     
      for (int i = 0; i < len; i++)
      {
         //Read the method id int - we just throw it away
         CallbackSupport cs;

         int id = is.readInt();

         switch (id)
         {
            case PacketSupport.CLIENT_DELIVERY:
               cs = new ClientDelivery();
               break;
            case PacketSupport.CONNECTIONFACTORY_UPDATE:
               cs = new ConnectionFactoryUpdate();
               break;
            default:
               // sanity check.. it shouldn't happen
               throw new IllegalStateException(("Can't deal with methodId=" + id));
         }
        
         cs.read(is);
        
         Callback cb = new Callback(cs);
                 
         callbacks.add(cb);
      }     
   }
  
   public void write(DataOutputStream os) throws Exception
   {
      super.write(os);
     
      os.writeUTF(sessionID);

      os.writeInt(callbacks.size());

      Iterator iter = callbacks.iterator();
     
      while (iter.hasNext())
      {
         Callback cb = (Callback)iter.next();

         CallbackSupport cs = (CallbackSupport) cb.getParameter();
        
         cs.write(os)
      }
     
      os.flush();
   }
  
   public Object getPayload()
   {
      return new InvocationResponse(sessionID, callbacks, false, null);
   }

}
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