//
// $Id: ByteArrayOutInputStream.java,v 1.1 2002/02/01 18:19:43 mdb Exp $
//
// samskivert library - useful routines for java programs
// Copyright (C) 2001 Michael Bayne
// 
// This library 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 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

package com.samskivert.io;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;

/**
 * The byte array out/input stream is used for writing data to a byte
 * array output stream and then obtaining an input stream that can read
 * back the data written to the output stream without first having to copy
 * it to a separate buffer.
 */
public class ByteArrayOutInputStream extends ByteArrayOutputStream
{
    /**
     * Creates a new byte array out/input stream. The buffer capacity is
     * initially 32 bytes, though its size increases if necessary.
     */
    public ByteArrayOutInputStream ()
    {
	this(32);
    }

    /**
     * Creates a new byte array out/input stream, with a buffer capacity
     * of the specified size, in bytes.
     *
     * @param size the initial size.
     *
     * @exception IllegalArgumentException if size is negative.
     */
    public ByteArrayOutInputStream (int size)
    {
        super(size);
    }

    /**
     * Returns an input stream configured to read only the bytes that have
     * been written this far to this byte array out/input stream.
     */
    public InputStream getInputStream ()
    {
        return new ByteArrayInputStream(buf, 0, count);
    }
}
