/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License").  You * may not use this file except in compliance with the License. You can obtain * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt. * Sun designates this particular file as subject to the "Classpath" exception * as provided by Sun in the GPL Version 2 section of the License file that * accompanied this code.  If applicable, add the following below the License * Header, with the fields enclosed by brackets [] replaced by your own * identifying information: "Portions Copyrighted [year] * [name of copyright owner]" * * Contributor(s): * * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license."  If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above.  However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. *//* * @(#)image_gif.java	1.3 07/05/04 */package com.sun.mail.handlers;import java.io.*;import java.awt.*;import java.awt.datatransfer.DataFlavor;import javax.activation.*;import javax.mail.internet.*;/** * DataContentHandler for image/gif. */public class image_gif implements DataContentHandler {    private static ActivationDataFlavor myDF = new ActivationDataFlavor(	java.awt.Image.class,	"image/gif",	"GIF Image");    protected ActivationDataFlavor getDF() {	return myDF;    }    /**     * Return the DataFlavors for this <code>DataContentHandler</code>.     *     * @return The DataFlavors     */    public DataFlavor[] getTransferDataFlavors() { // throws Exception;	return new DataFlavor[] { getDF() };    }    /**     * Return the Transfer Data of type DataFlavor from InputStream.     *     * @param df The DataFlavor     * @param ins The InputStream corresponding to the data     * @return String object     */    public Object getTransferData(DataFlavor df, DataSource ds)			throws IOException {	// use myDF.equals to be sure to get ActivationDataFlavor.equals,	// which properly ignores Content-Type parameters in comparison	if (getDF().equals(df))	    return getContent(ds);	else	    return null;    }    public Object getContent(DataSource ds) throws IOException {	InputStream is = ds.getInputStream();	int pos = 0;	int count;	byte buf[] = new byte[1024];	while ((count = is.read(buf, pos, buf.length - pos)) != -1) {	    pos += count;	    if (pos >= buf.length) {		int size = buf.length;		if (size < 256*1024)		    size += size;		else		    size += 256*1024;		byte tbuf[] = new byte[size];		System.arraycopy(buf, 0, tbuf, 0, pos);		buf = tbuf;	    }	}	Toolkit tk = Toolkit.getDefaultToolkit();	return tk.createImage(buf, 0, pos);    }    /**     * Write the object to the output stream, using the specified MIME type.     */    public void writeTo(Object obj, String type, OutputStream os)			throws IOException {	if (!(obj instanceof Image))	    throw new IOException("\"" + getDF().getMimeType() +		"\" DataContentHandler requires Image object, " +		"was given object of type " + obj.getClass().toString());	throw new IOException(getDF().getMimeType() + " encoding not supported");    }}