/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.axis.components.image;
import org.apache.axis.utils.Messages;
import org.apache.axis.utils.IOUtils;
import sun.awt.image.codec.JPEGImageEncoderImpl;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* 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 os the stream to write to
* @exception Exception 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(Messages.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()];
IOUtils.readFully(in,bytes);
return Toolkit.getDefaultToolkit().createImage(bytes);
}
} // loadImage
}