AccessibleByteArrayOutputStream.java

/*******************************************************************************
 * Copyright (c) 2004, 2005
 * Thomas Hallgren, Kenneth Olwing, Mitch Sonies
 * Pontus Rydin, Nils Unden, Peer Torngren
 * The code, documentation and other materials contained herein have been
 * licensed under the Eclipse Public License - v 1.0 by the individual
 * copyright holders listed above, as Initial Contributors under such license.
 * The text of such license is available at www.eclipse.org.
 *******************************************************************************/
package org.eclipse.equinox.p2.authoring.internal;

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

/**
 * @author Thomas Hallgren
 */
public class AccessibleByteArrayOutputStream extends ByteArrayOutputStream
{

	public AccessibleByteArrayOutputStream()
	{
		super();
	}

	public AccessibleByteArrayOutputStream(int size)
	{
		super(size);
	}

	/**
	 * Returns an InputStream that can read the content of this output
	 * stream up to the point where this call was issued. Further writes
	 * on this OutputStream will not be available for the returned
	 * InputStream. The typical scenario is that some byte image is
	 * built with a series of writes and an InputStream is desired
	 * that can read this image without copying it (as would have been
	 * done using {@link ByteArrayOutputStream#toByteArray()}.
	 * @return
	 */
	public InputStream getInputStream()
	{
		return new ByteArrayInputStream(buf, 0, count);
	}

	/**
	 * Reset the counter to zero so that the stream can be reused.
	 */
	@Override
	public void close() throws IOException
	{
		count = 0;
    }
}