truncatedfileexception.java

java1.6众多例子参考

/*
 * @(#)TruncatedFileException.java	1.11 06/04/07
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

/* ********************************************************************
 **********************************************************************
 **********************************************************************
 *** COPYRIGHT (c) Eastman Kodak Company, 1997                      ***
 *** As  an unpublished  work pursuant to Title 17 of the United    ***
 *** States Code.  All rights reserved.                             ***
 **********************************************************************
 **********************************************************************
 **********************************************************************/

package com.sun.image.codec.jpeg;

import java.awt.image.Raster;
import java.awt.image.BufferedImage;
/**
 * Signals that a truncated file was detected.  This object contains
 * the Raster/BufferedImage that has the partially decoded image data
 * in it.  There is no indication of the portion of the Raster that
 * may or may not be good.
 * <p>
 * Note that the classes in the com.sun.image.codec.jpeg package are not
 * part of the core Java APIs.  They are a part of Sun's JDK and JRE
 * distributions.  Although other licensees may choose to distribute these
 * classes, developers cannot depend on their availability in non-Sun
 * implementations.  We expect that equivalent functionality will eventually
 * be available in a core API or standard extension.
 * <p>
 *
 * @author  Thomas DeWeese
 * @see     JPEGImageDecoder
 * @since   1.2
 */
public
class TruncatedFileException extends RuntimeException {
	private Raster 			ras = null;
	private BufferedImage	bi  = null;


    /**
     * Constructs a <code>TruncatedFileException</code> with the
     * partially decoded BufferedImage.
     *
     * @param   bi the partially decoded BufferedImage (may be null).
     * @since   1.2
     */
    public TruncatedFileException(BufferedImage bi) {
		super("Premature end of input file");
		this.bi  = bi;
		this.ras = bi.getData();
    }

    /**
     * Constructs an <code>TruncatedFileException</code> with the
     * partially decoded Raster
     *
     * @param   ras the partially decoded Raster (may be null).
     * @since   1.2
     */
    public TruncatedFileException(Raster ras) {
		super("Premature end of input file");
		this.ras = ras;
    }

	/** Allows access to the raster that was in the progress of being
	 * decoded may be null, it is likely to be only partially filled
	 * with image data.
     * @since   1.2
	 */
	public Raster getRaster() { return ras; }

	/** Allows access to the BufferedImage that was in the progress of
	 * being decoded, this may be null, it is likely to be only
	 * partially filled with image data.
     * @since   1.2
	 */
	public BufferedImage getBufferedImage() { return bi; }
}