cvs commit: xml-axis/java/src/org/apache/axis/components/image JDK13IO.java

[bu...@apache.org]

butek       2002/08/26 12:20:16

  Added:       java/src/org/apache/axis/components/image JDK13IO.java
  Log:
  I've discovered a JDK 1.3 implementation for our ImageIO plugin.  The
  problem is, it can only write JPEG format, and it's depends on
  sun.awt.image.codec.JPEGImageEncoderImpl, though the Sun, the IBM,
  and the HP JDKs all have this class.
  
  I've added this class so that those who want to use a non-JIMI JDK1.3
  implementation have something they can use, even if it's as limited as this
  one is.
  
  Revision  Changes    Path
  1.1                  xml-axis/java/src/org/apache/axis/components/image/JDK13IO.java
  
  Index: JDK13IO.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Axis" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  package org.apache.axis.components.image;
  
  import org.apache.axis.utils.JavaUtils;
  
  import java.awt.Component;
  import java.awt.Graphics;
  import java.awt.Image;
  import java.awt.MediaTracker;
  
  import java.awt.image.BufferedImage;
  
  import java.awt.Toolkit;
  
  import java.io.InputStream;
  import java.io.IOException;
  import java.io.OutputStream;
  
  import sun.awt.image.codec.JPEGImageEncoderImpl;
  
  /**
   * JDK1.3 based Image I/O
   *
   * @author <a href="mailto:butek@us.ibm.com">Russell Butek</a>
   */
  public class JDK13IO extends Component implements ImageIO {
      /**
       * Save an image.
       * @param mimeType the mime-type of the format to save the image
       * @param image the image to save
       * @param filename the file to write to
       * @exception JimiException if an error prevents image encoding
       */
      public void saveImage(String mimeType, Image image, OutputStream os)
              throws Exception {
  
          BufferedImage rendImage = null;
  
          // Create a BufferedImage
          if (image instanceof BufferedImage) {
              rendImage = (BufferedImage) image;
          } else {
              MediaTracker tracker = new MediaTracker(this);
              tracker.addImage(image, 0);
              tracker.waitForAll();
              rendImage = new BufferedImage(image.getWidth(null), image.getHeight(null), 1);
              Graphics g = rendImage.createGraphics();
              g.drawImage(image, 0, 0, null);
          }
  
          // Write the image to the output stream
          if ("image/jpeg".equals(mimeType)) {
              JPEGImageEncoderImpl j = new JPEGImageEncoderImpl(os);
              j.encode(rendImage);
          }
          else {
              throw new IOException(JavaUtils.getMessage("jpegOnly", mimeType));
          }
      } // saveImage
  
      /**
       * Load an Image.
       * @param in the stream to load the image
       * @return the Image
       */
      public Image loadImage(InputStream in) throws Exception {
          if (in.available() <= 0) {
              return null;
          }
          else {
              byte[] bytes = new byte[in.available()];
              in.read(bytes);
              return Toolkit.getDefaultToolkit().createImage(bytes);
          }
      } // loadImage
  }