| /* |
| * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| * 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.messaging.saaj.soap; |
| |
| import java.awt.datatransfer.DataFlavor; |
| import java.io.*; |
| import java.awt.*; |
| |
| import javax.activation.*; |
| |
| /** |
| * DataContentHandler for image/gif. |
| * |
| * @author Ana Lindstrom-Tamer |
| */ |
| public class GifDataContentHandler extends Component 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 != null && !(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"); |
| } |
| |
| |
| } |