/*

 * 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);

        }

    }

}