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 
  32 import java.io.File;
  33 import java.io.IOException;
  34 import java.io.RandomAccessFile;
  35 
  36 import javax.imageio.ImageIO;
  37 import javax.imageio.stream.FileImageInputStream;
  38 import javax.imageio.stream.FileImageOutputStream;
  39 import javax.imageio.stream.ImageInputStream;
  40 import javax.imageio.stream.ImageOutputStream;
  41 
  42 public 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 }