1/*
2 * Copyright (c) 2001, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 4395378
27 * @summary Checks that ImageIO.createImageInputStream and
28 *          createImageOutputStream produce correct output when given a
29 *          RandomAccessFile
30 */
31
32import java.io.File;
33import java.io.IOException;
34import java.io.RandomAccessFile;
35
36import javax.imageio.ImageIO;
37import javax.imageio.stream.FileImageInputStream;
38import javax.imageio.stream.FileImageOutputStream;
39import javax.imageio.stream.ImageInputStream;
40import javax.imageio.stream.ImageOutputStream;
41
42public class ImageStreamFromRAF {
43
44    public static void main(String[] args) {
45        try {
46            File f = new File("ImageInputStreamFromRAF.tmp");
47            RandomAccessFile raf = new RandomAccessFile(f, "rw");
48            ImageInputStream istream = ImageIO.createImageInputStream(raf);
49            ImageOutputStream ostream = ImageIO.createImageOutputStream(raf);
50            f.delete();
51            if (istream == null) {
52                throw new RuntimeException("ImageIO.createImageInputStream(RandomAccessFile) returned null!");
53            }
54            if (ostream == null) {
55                throw new RuntimeException("ImageIO.createImageOutputStream(RandomAccessFile) returned null!");
56            }
57            if (!(istream instanceof FileImageInputStream)) {
58                throw new RuntimeException("ImageIO.createImageInputStream(RandomAccessFile) did not return a FileImageInputStream!");
59            }
60            if (!(ostream instanceof FileImageOutputStream)) {
61                throw new RuntimeException("ImageIO.createImageOutputStream(RandomAccessFile) did not return a FileImageOutputStream!");
62            }
63        } catch (IOException ioe) {
64            throw new RuntimeException("Unexpected IOException: " + ioe);
65        }
66    }
67}
68