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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package com.sun.xml.internal.messaging.saaj.soap;

import java.awt.*;

import java.awt.datatransfer.DataFlavor;

import java.awt.image.BufferedImage;

import java.io.*;

import javax.activation.*;

//import com.sun.image.codec.jpeg.*;

import javax.imageio.ImageIO;

/**

 * JAF data handler for Jpeg content

 *

 * @author Ana Lindstrom-Tamer

 */

public class JpegDataContentHandler

    extends Component

    implements DataContentHandler {

    public static final String STR_SRC = "java.awt.Image";

    /**

     * return the DataFlavors for this <code>DataContentHandler</code>

     * @return The DataFlavors.

     */

    public DataFlavor[] getTransferDataFlavors() { // throws Exception;

        DataFlavor flavors[] = new DataFlavor[1];

        try {

            flavors[0] =

                new ActivationDataFlavor(

                    Class.forName(STR_SRC),

                    "image/jpeg",

                    "JPEG");

        } catch (Exception e) {

            System.out.println(e);

        }

        return flavors;

    }

    /**

     * return the Transfer Data of type DataFlavor from InputStream

     * @param df The DataFlavor.

     * @param ins The InputStream corresponding to the data.

     * @return The constructed Object.

     */

    public Object getTransferData(DataFlavor df, DataSource ds) {

        // this is sort of hacky, but will work for the

        // sake of testing...

        if (df.getMimeType().startsWith("image/jpeg")) {

            if (df.getRepresentationClass().getName().equals(STR_SRC)) {

                InputStream inputStream = null;

                BufferedImage jpegLoadImage = null;

                try {

                    inputStream = ds.getInputStream();

                    jpegLoadImage = ImageIO.read(inputStream);

                } catch (Exception e) {

                    System.out.println(e);

                }

                return jpegLoadImage;

            }

        }

        return null;

    }

    /**

     *

     */

    public Object getContent(DataSource ds) { // throws Exception;

        InputStream inputStream = null;

        BufferedImage jpegLoadImage = null;

        try {

            inputStream = ds.getInputStream();

            jpegLoadImage = ImageIO.read(inputStream);

        } catch (Exception e) {

        }

        return (Image) jpegLoadImage;

    }

    /**

     * construct an object from a byte stream

     * (similar semantically to previous method, we are deciding

     *  which one to support)

     */

    public void writeTo(Object obj, String mimeType, OutputStream os)

        throws IOException {

        if (!mimeType.equals("image/jpeg"))

            throw new IOException(

                "Invalid content type \""

                    + mimeType

                    + "\" for ImageContentHandler");

        if (obj == null) {

            throw new IOException("Null object for ImageContentHandler");

        }

        try {

            BufferedImage bufImage = null;

            if (obj instanceof BufferedImage) {

                bufImage = (BufferedImage) obj;

            } else {

                Image img = (Image) obj;

                MediaTracker tracker = new MediaTracker(this);

                tracker.addImage(img, 0);

                tracker.waitForAll();

                if (tracker.isErrorAny()) {

                        throw new IOException("Error while loading image");

                }

                bufImage =

                    new BufferedImage(

                        img.getWidth(null),

                        img.getHeight(null),

                        BufferedImage.TYPE_INT_RGB);

                Graphics g = bufImage.createGraphics();

                g.drawImage(img, 0, 0, null);

            }

            ImageIO.write(bufImage, "jpeg", os);

        } catch (Exception ex) {

            throw new IOException(

                "Unable to run the JPEG Encoder on a stream "

                    + ex.getMessage());

        }

    }

}