1 /* 2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.xml.internal.messaging.saaj.soap; 27 28 import java.awt.*; 29 import java.awt.datatransfer.DataFlavor; 30 import java.awt.image.BufferedImage; 31 import java.io.*; 32 33 import javax.activation.*; 34 35 //import com.sun.image.codec.jpeg.*; 36 import javax.imageio.ImageIO; 37 38 /** 39 * JAF data handler for Jpeg content 40 * 41 * @author Ana Lindstrom-Tamer 42 */ 43 44 public class JpegDataContentHandler 45 extends Component 46 implements DataContentHandler { 47 public static final String STR_SRC = "java.awt.Image"; 48 49 /** 50 * Return the DataFlavors for this <code>DataContentHandler</code> 51 * @return The DataFlavors. 52 */ 53 @Override 54 public DataFlavor[] getTransferDataFlavors() { // throws Exception; 55 DataFlavor flavors[] = new DataFlavor[1]; 56 57 try { 58 flavors[0] = 59 new ActivationDataFlavor( 60 Class.forName(STR_SRC), 61 "image/jpeg", 62 "JPEG"); 63 } catch (Exception e) { 64 System.out.println(e); 65 } 66 67 return flavors; 68 } 69 70 /** 71 * Return the Transfer Data of type DataFlavor from InputStream 72 * @param df The DataFlavor 73 * @param ds The DataSource 74 * @return The constructed Object. 75 */ 76 @Override 77 public Object getTransferData(DataFlavor df, DataSource ds) { 78 79 // this is sort of hacky, but will work for the 80 // sake of testing... 81 if (df.getMimeType().startsWith("image/jpeg")) { 82 if (df.getRepresentationClass().getName().equals(STR_SRC)) { 83 InputStream inputStream = null; 84 BufferedImage jpegLoadImage = null; 85 86 try { 87 inputStream = ds.getInputStream(); 88 jpegLoadImage = ImageIO.read(inputStream); 89 90 } catch (Exception e) { 91 System.out.println(e); 92 } 93 94 return jpegLoadImage; 95 } 96 } 97 return null; 98 } 99 100 /** 101 * 102 */ 103 @Override 104 public Object getContent(DataSource ds) { // throws Exception; 105 InputStream inputStream = null; 106 BufferedImage jpegLoadImage = null; 107 108 try { 109 inputStream = ds.getInputStream(); 110 jpegLoadImage = ImageIO.read(inputStream); 111 112 } catch (Exception e) { 113 } 114 115 return jpegLoadImage; 116 } 117 118 /** 119 * Construct an object from a byte stream 120 * (similar semantically to previous method, we are deciding 121 * which one to support) 122 * @param obj object to write 123 * @param mimeType requested MIME type of the resulting byte stream 124 * @param os OutputStream 125 */ 126 @Override 127 public void writeTo(Object obj, String mimeType, OutputStream os) 128 throws IOException { 129 if (!mimeType.equals("image/jpeg")) 130 throw new IOException( 131 "Invalid content type \"" 132 + mimeType 133 + "\" for ImageContentHandler"); 134 135 if (obj == null) { 136 throw new IOException("Null object for ImageContentHandler"); 137 } 138 139 try { 140 BufferedImage bufImage = null; 141 if (obj instanceof BufferedImage) { 142 bufImage = (BufferedImage) obj; 143 144 } else { 145 Image img = (Image) obj; 146 MediaTracker tracker = new MediaTracker(this); 147 tracker.addImage(img, 0); 148 tracker.waitForAll(); 149 if (tracker.isErrorAny()) { 150 throw new IOException("Error while loading image"); 151 } 152 bufImage = 153 new BufferedImage( 154 img.getWidth(null), 155 img.getHeight(null), 156 BufferedImage.TYPE_INT_RGB); 157 158 Graphics g = bufImage.createGraphics(); 159 g.drawImage(img, 0, 0, null); 160 } 161 ImageIO.write(bufImage, "jpeg", os); 162 163 } catch (Exception ex) { 164 throw new IOException( 165 "Unable to run the JPEG Encoder on a stream " 166 + ex.getMessage()); 167 } 168 } 169 }