jdk/test/javax/imageio/AllowSearch.java
author aghaisas
Mon, 24 Jul 2017 11:54:57 +0530
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parent 45351 f7f615a3aaff
permissions -rw-r--r--
8183341: Better cleanup for javax/imageio/AllowSearch.java Reviewed-by: prr, jdv, pnarayanan Contributed-by: shashidhara.veerabhadraiah@oracle.com
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/*
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 * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 4420318 8183341
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 * @summary Checks that an IllegalStateException is thrown by getNumImages(true)
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 *          when seekForwardOnly is true
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 * @modules java.desktop/com.sun.imageio.plugins.gif
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 *          java.desktop/com.sun.imageio.plugins.jpeg
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 *          java.desktop/com.sun.imageio.plugins.png
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 */
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import java.io.File;
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import java.io.IOException;
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import java.nio.file.Files;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageReader;
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import javax.imageio.stream.ImageInputStream;
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import com.sun.imageio.plugins.gif.GIFImageReader;
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import com.sun.imageio.plugins.jpeg.JPEGImageReader;
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import com.sun.imageio.plugins.png.PNGImageReader;
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public class AllowSearch {
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    private static void test(ImageReader reader, String format)
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        throws IOException {
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        boolean gotISE = false;
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        File f = null;
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        ImageInputStream stream = null;
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        try {
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            f = File.createTempFile("imageio", ".tmp");
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            stream = ImageIO.createImageInputStream(f);
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            reader.setInput(stream, true);
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            try {
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                int numImages = reader.getNumImages(true);
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            } catch (IOException ioe) {
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                gotISE = false;
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            } catch (IllegalStateException ise) {
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                gotISE = true;
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            }
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        } finally {
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            if (stream != null) {
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                stream.close();
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            }
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            reader.dispose();
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            if (f != null) {
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                Files.delete(f.toPath());
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            }
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        }
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        if (!gotISE) {
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            throw new RuntimeException("Failed to get desired exception for " +
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                                       format + " reader!");
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        }
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    }
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    public static void main(String[] args) throws IOException {
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        ImageReader gifReader = new GIFImageReader(null);
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        ImageReader jpegReader = new JPEGImageReader(null);
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        ImageReader pngReader = new PNGImageReader(null);
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        test(gifReader, "GIF");
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        test(jpegReader, "JPEG");
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        test(pngReader, "PNG");
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    }
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}