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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: XOutputStreamToByteArrayAdapter.java,v $
*
* $Revision: 1.3 $
*
* last change: $Author: rt $ $Date: 2005-09-07 18:38:41 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
/*
* ByteArrayXOutputStream.java
*
* Created on 11. April 2003, 14:20
*/
package com.sun.star.lib.uno.adapter;
/**
*
* @author lo119109
*/
import com.sun.star.io.*;
import com.sun.star.lib.uno.helper.ComponentBase;
public class XOutputStreamToByteArrayAdapter
extends ComponentBase
implements XOutputStream
{
private int initialSize = 100240; // 10 kb
private int size = 0;
private int position = 0;
private boolean externalBuffer = false;
private boolean closed = false;
private byte[] buffer;
/** Creates a new instance of ByteArrayXOutputStream */
public XOutputStreamToByteArrayAdapter() {
this(null);
}
public XOutputStreamToByteArrayAdapter(byte[] aBuffer) {
if (aBuffer != null) {
externalBuffer = true;
buffer = aBuffer;
size = buffer.length;
// System.err.println("new outputbuffer with external storage");
} else {
size = initialSize;
buffer = new byte[size];
// System.err.println("new outputbuffer with internal storage");
}
}
public byte[] getBuffer() {
return buffer;
}
public void closeOutput()
throws com.sun.star.io.NotConnectedException,
com.sun.star.io.BufferSizeExceededException,
com.sun.star.io.IOException
{
// trim buffer
if ( buffer.length > position && !externalBuffer )
{
byte[] newBuffer = new byte[position];
System.arraycopy(buffer, 0, newBuffer, 0, position);
buffer = newBuffer;
}
closed = true;
}
public void flush()
throws com.sun.star.io.NotConnectedException,
com.sun.star.io.BufferSizeExceededException,
com.sun.star.io.IOException
{
}
public void writeBytes(byte[] values)
throws com.sun.star.io.NotConnectedException,
com.sun.star.io.BufferSizeExceededException,
com.sun.star.io.IOException
{
// System.err.println("writeBytes("+values.length+")");
if ( values.length > size-position )
{
if ( externalBuffer )
throw new BufferSizeExceededException("out of buffer space, cannot grow external buffer");
byte[] newBuffer = null;
while ( values.length > size-position )
size *= 2;
// System.err.println("new buffer size is "+size+" bytes.");
newBuffer = new byte[size];
System.arraycopy(buffer, 0, newBuffer, 0, position);
buffer = newBuffer;
}
System.arraycopy(values, 0, buffer, position, values.length);
position += values.length;
}
}
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