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/*
* Copyright (c) 2001, 2017, 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.
*
* 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.
*/
/*
* @test
* @bug 4395378
* @summary Checks that ImageIO.createImageInputStream and
* createImageOutputStream produce correct output when given a
* RandomAccessFile
*/
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import javax.imageio.ImageIO;
import javax.imageio.stream.FileImageInputStream;
import javax.imageio.stream.FileImageOutputStream;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.stream.ImageOutputStream;
public class ImageStreamFromRAF {
public static void main(String[] args) {
try {
File f = new File("ImageInputStreamFromRAF.tmp");
RandomAccessFile raf = new RandomAccessFile(f, "rw");
ImageInputStream istream = ImageIO.createImageInputStream(raf);
ImageOutputStream ostream = ImageIO.createImageOutputStream(raf);
f.delete();
if (istream == null) {
throw new RuntimeException("ImageIO.createImageInputStream(RandomAccessFile) returned null!");
}
if (ostream == null) {
throw new RuntimeException("ImageIO.createImageOutputStream(RandomAccessFile) returned null!");
}
if (!(istream instanceof FileImageInputStream)) {
throw new RuntimeException("ImageIO.createImageInputStream(RandomAccessFile) did not return a FileImageInputStream!");
}
if (!(ostream instanceof FileImageOutputStream)) {
throw new RuntimeException("ImageIO.createImageOutputStream(RandomAccessFile) did not return a FileImageOutputStream!");
}
} catch (IOException ioe) {
throw new RuntimeException("Unexpected IOException: " + ioe);
}
}
}
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