Package org.jboss.jms.wireformat

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

/*
* 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 org.jboss.jms.server.endpoint.ConsumerEndpoint;

/**
*
* A ConsumerChangeRateRequest
*
* @author <a href="mailto:tim.fox@jboss.com">Tim Fox</a>
* @version <tt>$Revision: 2432 $</tt>
*
* $Id: ConsumerChangeRateRequest.java 2432 2007-02-26 00:07:38Z ovidiu.feodorov@jboss.com $
*
*/
public class ConsumerChangeRateRequest extends RequestSupport
{
   private float newRate;
  
   public ConsumerChangeRateRequest()
   {     
   }
  
   public ConsumerChangeRateRequest(int objectId,
                                    byte version,
                                    float newRate)
   {
      super(objectId, PacketSupport.REQ_CONSUMER_CHANGERATE, version);
     
      this.newRate = newRate;
   }

   public void read(DataInputStream is) throws Exception
   {
      super.read(is);
     
      newRate = is.readFloat();
   }

   public ResponseSupport serverInvoke() throws Exception
   {
      ConsumerEndpoint endpoint =
         (ConsumerEndpoint)Dispatcher.instance.getTarget(objectId);
     
      if (endpoint == null)
      {
         throw new IllegalStateException("Cannot find object in dispatcher with id " + objectId);
      }
     
      endpoint.changeRate(newRate);
     
      return null;
   }

   public void write(DataOutputStream os) throws Exception
   {
      super.write(os);
     
      os.writeFloat(newRate);
     
      os.flush();
   }
  
   // Until we have NBIO transport this needs to be synchronous otherwise we can get out of sync
   // due to earlier invocations overtaking later invocations.
  
//   public Object getPayload()
//   {
//      OnewayInvocation oi = new OnewayInvocation(this);
//
//      InvocationRequest request =
//         new InvocationRequest(null, ServerPeer.REMOTING_JMS_SUBSYSTEM,
//                               oi, ONE_WAY_METADATA, null, null);
//     
//      return request;    
//   }

}


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