/*

 * 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 4420318 8183341

 * @summary Checks that an IllegalStateException is thrown by getNumImages(true)

 *          when seekForwardOnly is true

 * @modules java.desktop/com.sun.imageio.plugins.gif

 *          java.desktop/com.sun.imageio.plugins.jpeg

 *          java.desktop/com.sun.imageio.plugins.png

 */

import java.io.File;

import java.io.IOException;

import java.nio.file.Files;

import javax.imageio.ImageIO;

import javax.imageio.ImageReader;

import javax.imageio.stream.ImageInputStream;

import com.sun.imageio.plugins.gif.GIFImageReader;

import com.sun.imageio.plugins.jpeg.JPEGImageReader;

import com.sun.imageio.plugins.png.PNGImageReader;

public class AllowSearch {

    private static void test(ImageReader reader, String format)

        throws IOException {

        boolean gotISE = false;

        File f = null;

        ImageInputStream stream = null;

        try {

            f = File.createTempFile("imageio", ".tmp");

            stream = ImageIO.createImageInputStream(f);

            reader.setInput(stream, true);

            try {

                int numImages = reader.getNumImages(true);

            } catch (IOException ioe) {

                gotISE = false;

            } catch (IllegalStateException ise) {

                gotISE = true;

            }

        } finally {

            if (stream != null) {

                stream.close();

            }

            reader.dispose();

            if (f != null) {

                Files.delete(f.toPath());

            }

        }

        if (!gotISE) {

            throw new RuntimeException("Failed to get desired exception for " +

                                       format + " reader!");

        }

    }

    public static void main(String[] args) throws IOException {

        ImageReader gifReader = new GIFImageReader(null);

        ImageReader jpegReader = new JPEGImageReader(null);

        ImageReader pngReader = new PNGImageReader(null);

        test(gifReader, "GIF");

        test(jpegReader, "JPEG");

        test(pngReader, "PNG");

    }

}