package org.jacorb.orb.giop;
/*
* JacORB - a free Java ORB
*
* Copyright (C) 1997-2004 Gerald Brose.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
import org.jacorb.orb.SystemExceptionHelper;
import org.omg.CORBA.INTERNAL;
import org.omg.CORBA.MARSHAL;
import org.omg.CORBA.portable.ApplicationException;
import org.omg.GIOP.MsgType_1_1;
import org.omg.GIOP.ReplyHeader_1_0;
import org.omg.GIOP.ReplyHeader_1_0Helper;
import org.omg.GIOP.ReplyHeader_1_2;
import org.omg.GIOP.ReplyHeader_1_2Helper;
import org.omg.GIOP.ReplyStatusType_1_2;
import org.omg.IOP.ServiceContext;
import org.omg.PortableServer.ForwardRequest;
/**
* @author Gerald Brose, FU Berlin 1999
* @version $Id: ReplyInputStream.java,v 1.24 2006-06-28 12:41:43 alphonse.bendt Exp $
*
*/
public class ReplyInputStream
extends ServiceContextTransportingInputStream
{
public final ReplyHeader_1_2 rep_hdr;
private final int body_start;
public ReplyInputStream( org.omg.CORBA.ORB orb, byte[] buffer )
{
super( orb, buffer );
//check message type
if( Messages.getMsgType( buffer ) != MsgType_1_1._Reply )
{
throw new MARSHAL("Not a reply!");
}
switch( giop_minor )
{
case 0 :
{
//GIOP 1.0 = GIOP 1.1, fall through
}
case 1 :
{
//GIOP 1.1
ReplyHeader_1_0 hdr =
ReplyHeader_1_0Helper.read( this );
body_start = pos;
rep_hdr =
new ReplyHeader_1_2( hdr.request_id,
ReplyStatusType_1_2.from_int( hdr.reply_status.value() ),
hdr.service_context );
break;
}
case 2 :
{
//GIOP 1.2
rep_hdr = ReplyHeader_1_2Helper.read( this );
skipHeaderPadding();
body_start = pos;
break;
}
default : {
throw new MARSHAL("Unknown GIOP minor version: " + giop_minor);
}
}
}
/**
* Returns the reply status of this reply.
*/
public ReplyStatusType_1_2 getStatus()
{
return rep_hdr.reply_status;
}
/**
* Returns any exception that is indicated by this reply. If
* the reply status is USER_EXCEPTION, SYSTEM_EXCEPTION, LOCATION_FORWARD,
* or LOCATION_FORWARD_PERM, an appropriate exception object is returned.
* For any other status, returns null.
*/
public synchronized Exception getException()
{
switch( rep_hdr.reply_status.value() )
{
case ReplyStatusType_1_2._USER_EXCEPTION :
{
mark( 0 );
String id = read_string();
try
{
reset();
}
catch( java.io.IOException e )
{
throw new INTERNAL("should never happen: " + e.toString());
}
return new ApplicationException( id, this );
}
case ReplyStatusType_1_2._SYSTEM_EXCEPTION:
{
return SystemExceptionHelper.read( this );
}
case ReplyStatusType_1_2._LOCATION_FORWARD:
case ReplyStatusType_1_2._LOCATION_FORWARD_PERM:
{
return new ForwardRequest( read_Object() );
}
default:
{
return null;
}
}
}
/**
* Returns the ServiceContext with the given id, if one is present.
* If there is no such ServiceContext, returns null.
*/
public ServiceContext getServiceContext(int id)
{
if (rep_hdr.service_context != null)
{
for (int i=0; i<rep_hdr.service_context.length; i++)
{
if (rep_hdr.service_context[i].context_id == id)
{
return rep_hdr.service_context[i];
}
}
}
return null;
}
/**
* Returns a copy of the body of this reply. This does not include
* the GIOP header and the reply header.
*/
public byte[] getBody()
{
int body_length = msg_size - (body_start - Messages.MSG_HEADER_SIZE);
byte[] body = new byte[body_length];
System.arraycopy (buffer, body_start, body, 0, body_length);
return body;
}
protected void finalize() throws Throwable
{
try
{
close();
}
finally
{
super.finalize();
}
}
}