Wed, 27 Apr 2016 01:27:09 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/jaxws/
changeset: 657:d47a47f961ee
tag: jdk8u25-b17
1 /*
2 * Copyright (c) 1997, 2012, 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 */
26 package com.sun.xml.internal.ws.encoding;
28 import javax.activation.DataContentHandler;
29 import javax.activation.ActivationDataFlavor;
30 import javax.activation.DataSource;
31 import javax.imageio.ImageIO;
32 import javax.imageio.ImageWriter;
33 import javax.imageio.stream.ImageOutputStream;
34 import java.awt.*;
35 import java.awt.image.BufferedImage;
36 import java.awt.datatransfer.DataFlavor;
37 import java.util.logging.Logger;
38 import java.util.Iterator;
39 import java.io.IOException;
40 import java.io.BufferedInputStream;
41 import java.io.OutputStream;
42 import java.util.Arrays;
44 /**
45 * @author Jitendra Kotamraju
46 */
48 public class ImageDataContentHandler extends Component
49 implements DataContentHandler {
51 private static final Logger log = Logger.getLogger(ImageDataContentHandler.class.getName());
52 private final DataFlavor[] flavor;
54 public ImageDataContentHandler() {
55 String[] mimeTypes = ImageIO.getReaderMIMETypes();
56 flavor = new DataFlavor[mimeTypes.length];
57 for(int i=0; i < mimeTypes.length; i++) {
58 flavor[i] = new ActivationDataFlavor(Image.class, mimeTypes[i], "Image");
59 }
60 }
62 /**
63 * Returns an array of DataFlavor objects indicating the flavors the
64 * data can be provided in. The array should be ordered according to
65 * preference for providing the data (from most richly descriptive to
66 * least descriptive).
67 *
68 * @return The DataFlavors.
69 */
70 public DataFlavor[] getTransferDataFlavors() {
71 return Arrays.copyOf(flavor, flavor.length);
72 }
74 /**
75 * Returns an object which represents the data to be transferred.
76 * The class of the object returned is defined by the representation class
77 * of the flavor.
78 *
79 * @param df The DataFlavor representing the requested type.
80 * @param ds The DataSource representing the data to be converted.
81 * @return The constructed Object.
82 */
83 public Object getTransferData(DataFlavor df, DataSource ds)
84 throws IOException {
85 for (DataFlavor aFlavor : flavor) {
86 if (aFlavor.equals(df)) {
87 return getContent(ds);
88 }
89 }
90 return null;
91 }
93 /**
94 * Return an object representing the data in its most preferred form.
95 * Generally this will be the form described by the first DataFlavor
96 * returned by the <code>getTransferDataFlavors</code> method.
97 *
98 * @param ds The DataSource representing the data to be converted.
99 * @return The constructed Object.
100 */
101 public Object getContent(DataSource ds) throws IOException {
102 return ImageIO.read(new BufferedInputStream(ds.getInputStream()));
103 }
105 /**
106 * Convert the object to a byte stream of the specified MIME type
107 * and write it to the output stream.
108 *
109 * @param obj The object to be converted.
110 * @param type The requested MIME type of the resulting byte stream.
111 * @param os The output stream into which to write the converted
112 * byte stream.
113 */
115 public void writeTo(Object obj, String type, OutputStream os)
116 throws IOException {
118 try {
119 BufferedImage bufImage;
120 if (obj instanceof BufferedImage) {
121 bufImage = (BufferedImage)obj;
122 } else if (obj instanceof Image) {
123 bufImage = render((Image)obj);
124 } else {
125 throw new IOException(
126 "ImageDataContentHandler requires Image object, "
127 + "was given object of type "
128 + obj.getClass().toString());
129 }
130 ImageWriter writer = null;
131 Iterator<ImageWriter> i = ImageIO.getImageWritersByMIMEType(type);
132 if (i.hasNext()) {
133 writer = i.next();
134 }
135 if (writer != null) {
136 ImageOutputStream stream = ImageIO.createImageOutputStream(os);
137 writer.setOutput(stream);
138 writer.write(bufImage);
139 writer.dispose();
140 stream.close();
141 } else {
142 throw new IOException("Unsupported mime type:"+ type);
143 }
144 } catch (Exception e) {
145 throw new IOException("Unable to encode the image to a stream "
146 + e.getMessage());
147 }
148 }
151 private BufferedImage render(Image img) throws InterruptedException {
153 MediaTracker tracker = new MediaTracker(this);
154 tracker.addImage(img, 0);
155 tracker.waitForAll();
156 BufferedImage bufImage = new BufferedImage(img.getWidth(null),
157 img.getHeight(null), BufferedImage.TYPE_INT_RGB);
158 Graphics g = bufImage.createGraphics();
159 g.drawImage(img, 0, 0, null);
160 g.dispose();
161 return bufImage;
162 }
164 }