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 java.io.IOException;
import org.slf4j.Logger;
import org.jacorb.orb.ORB;
import org.jacorb.orb.SystemExceptionHelper;
import org.omg.CORBA.MARSHAL;
import org.omg.GIOP.LocateStatusType_1_2;
import org.omg.GIOP.MsgType_1_1;
import org.omg.GIOP.ReplyStatusType_1_0;
import org.omg.GIOP.ReplyStatusType_1_2;
/**
* @author Gerald Brose
* @version $Id: ReplyOutputStream.java,v 1.24.2.1 2011-12-23 10:21:13 nick.cross Exp $
*
*/
public class ReplyOutputStream
extends ServiceContextTransportingOutputStream
{
private final boolean is_locate_reply;
private final Logger logger;
public ReplyOutputStream ( ORB orb,
int request_id,
ReplyStatusType_1_2 reply_status,
int giop_minor,
boolean is_locate_reply,
Logger logger)
{
super(orb);
this.logger = logger;
this.is_locate_reply = is_locate_reply;
setGIOPMinor( giop_minor );
writeGIOPMsgHeader( MsgType_1_1._Reply,
giop_minor );
switch( giop_minor )
{
case 0 :
{
// GIOP 1.0 Reply == GIOP 1.1 Reply, fall through
}
case 1 :
{
//Technically, GIOP.idl only allows either
//ReplyStatusType_1_0 or ReplyStatusType_1_2, but not
//both. We go around this by compiling GIOP.idl two
//times
//GIOP 1.1
// ReplyHeader_1_0 repl_hdr =
// new ReplyHeader_1_0( alignment_ctx,
// request_id,
// ReplyStatusType_1_0.from_int( reply_status.value() ));
// ReplyHeader_1_0Helper.write( this, repl_hdr );
// inlining for performance
org.omg.IOP.ServiceContextListHelper.write(this , Messages.service_context );
write_ulong( request_id );
org.omg.GIOP.ReplyStatusType_1_0Helper.write( this,
ReplyStatusType_1_0.from_int( reply_status.value() ));
break;
}
case 2 :
{
//GIOP 1.2
// ReplyHeader_1_2 repl_hdr =
// new ReplyHeader_1_2( request_id,
// reply_status,
// alignment_ctx );
// ReplyHeader_1_2Helper.write( this, repl_hdr );
// more inlining
write_ulong( request_id );
org.omg.GIOP.ReplyStatusType_1_2Helper.write(this,
reply_status);
org.omg.IOP.ServiceContextListHelper.write( this, Messages.service_context );
markHeaderEnd(); //use padding if minor 2
break;
}
default :
{
throw new MARSHAL( "Unknown GIOP minor: " + giop_minor );
}
}
}
public void write_to( GIOPConnection conn )
throws IOException
{
if( is_locate_reply )
{
final ReplyInputStream in = new ReplyInputStream( null, getBufferCopy() );
try
{
final LocateReplyOutputStream out = getLocateReplyOutputStream(in);
try
{
out.write_to( conn );
}
finally
{
out.close();
}
}
finally
{
in.close();
}
}
else
{
super.write_to( conn );
}
}
private LocateReplyOutputStream getLocateReplyOutputStream(ReplyInputStream replyInputStream)
{
final LocateReplyOutputStream result;
if( replyInputStream.getGIOPMinor() < 2 )
{
//GIOP 1.0 or 1.1
switch( replyInputStream.rep_hdr.reply_status.value() )
{
case ReplyStatusType_1_2._NO_EXCEPTION :
{
int status;
//_non_existent?
if (replyInputStream.read_boolean())
{
//_non_existent == true
status = LocateStatusType_1_2._UNKNOWN_OBJECT;
}
else
{
//_non_existent == false
status = LocateStatusType_1_2._OBJECT_HERE;
}
result = new LocateReplyOutputStream( replyInputStream.rep_hdr.request_id,
status,
replyInputStream.getGIOPMinor() );
break;
}
case ReplyStatusType_1_2._USER_EXCEPTION :
{
//fall through
}
case ReplyStatusType_1_2._SYSTEM_EXCEPTION :
{
//uh oh, can't reply with exception
if (logger.isErrorEnabled())
{
logger.error("Received an exception when processing a LocateRequest" );
}
// GIOP prior to 1.2 doesn't have the status
// LOC_SYSTEM_EXCEPTION, so we have to return
// OBJECT_UNKNOWN (even if it may not be unknown)
result =
new LocateReplyOutputStream( replyInputStream.rep_hdr.request_id,
LocateStatusType_1_2._UNKNOWN_OBJECT,
replyInputStream.getGIOPMinor() );
break;
}
case ReplyStatusType_1_2._LOCATION_FORWARD :
{
result =
new LocateReplyOutputStream( replyInputStream.rep_hdr.request_id,
LocateStatusType_1_2._OBJECT_FORWARD,
replyInputStream.getGIOPMinor() );
//FIXME: it would be more efficient to copy
//the body part of this buffer to the new
//buffer
result.write_IOR( org.omg.IOP.IORHelper.read( replyInputStream ));
break;
}
default:
throw new IllegalArgumentException("ReplyStatus is invalid");
}
}
else
{
//GIOP 1.2
switch( replyInputStream.rep_hdr.reply_status.value() )
{
case ReplyStatusType_1_2._NO_EXCEPTION :
{
int status;
//_non_existent?
if( replyInputStream.read_boolean() )
{
//_non_existent == true
status = LocateStatusType_1_2._UNKNOWN_OBJECT;
}
else
{
//_non_existent == false
status = LocateStatusType_1_2._OBJECT_HERE;
}
result = new LocateReplyOutputStream( replyInputStream.rep_hdr.request_id,
status,
replyInputStream.getGIOPMinor() );
break;
}
case ReplyStatusType_1_2._USER_EXCEPTION :
{
//uh oh, can't reply with user exception
if (logger.isErrorEnabled())
{
logger.error("Received an exception when processing a LocateRequest - mapping to UNKNOWN system exception" );
}
result =
new LocateReplyOutputStream( replyInputStream.rep_hdr.request_id,
LocateStatusType_1_2._LOC_SYSTEM_EXCEPTION,
replyInputStream.getGIOPMinor() );
SystemExceptionHelper.write( result,
new org.omg.CORBA.UNKNOWN() );
break;
}
case ReplyStatusType_1_2._SYSTEM_EXCEPTION :
{
result =
new LocateReplyOutputStream( replyInputStream.rep_hdr.request_id,
LocateStatusType_1_2._LOC_SYSTEM_EXCEPTION,
replyInputStream.getGIOPMinor() );
//FIXME: inefficient, use copying
SystemExceptionHelper.write( result,
SystemExceptionHelper.read( replyInputStream ));
break;
}
case ReplyStatusType_1_2._LOCATION_FORWARD :
{
result =
new LocateReplyOutputStream( replyInputStream.rep_hdr.request_id,
LocateStatusType_1_2._OBJECT_FORWARD,
replyInputStream.getGIOPMinor() );
//FIXME: it would be more efficient to copy
//the body part of this buffer to the new
//buffer
result.write_IOR( org.omg.IOP.IORHelper.read( replyInputStream ));
break;
}
default:
throw new IllegalArgumentException("ReplyStatus is invalid");
}
}
return result;
}
}