/*
* @(#)BufferManagerReadGrow.java 1.20 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package com.sun.corba.se.impl.encoding;
import java.nio.ByteBuffer;
import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.spi.logging.CORBALogDomains;
import com.sun.corba.se.impl.protocol.giopmsgheaders.FragmentMessage;
import com.sun.corba.se.impl.protocol.giopmsgheaders.Message;
import com.sun.corba.se.impl.logging.ORBUtilSystemException;
public class BufferManagerReadGrow
implements BufferManagerRead, MarkAndResetHandler
{
// REVISIT - This should go in an abstract class called
// BufferManagerReadBase which should implement
// BufferManagerRead. Then, this class should extend
// BufferManagerReadBase.
private ORB orb ;
private ORBUtilSystemException wrapper ;
BufferManagerReadGrow( ORB orb )
{
this.orb = orb ;
this.wrapper = ORBUtilSystemException.get( orb,
CORBALogDomains.RPC_ENCODING ) ;
}
public void processFragment (ByteBuffer byteBuffer, FragmentMessage header)
{
// REVISIT - should we consider throwing an exception similar to what's
// done for underflow()???
}
public void init(Message msg) {}
public ByteBufferWithInfo underflow (ByteBufferWithInfo bbwi)
{
throw wrapper.unexpectedEof() ;
}
public void cancelProcessing(int requestId) {}
// Mark and reset handler -------------------------
private Object streamMemento;
private RestorableInputStream inputStream;
private boolean markEngaged = false;
public MarkAndResetHandler getMarkAndResetHandler() {
return this;
}
public void mark(RestorableInputStream is) {
markEngaged = true;
inputStream = is;
streamMemento = inputStream.createStreamMemento();
}
// This will never happen
public void fragmentationOccured(ByteBufferWithInfo newFragment) {}
public void reset() {
if (!markEngaged)
return;
markEngaged = false;
inputStream.restoreInternalState(streamMemento);
streamMemento = null;
}
// Nothing to close and cleanup.
public void close(ByteBufferWithInfo bbwi) {}
}
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