| /* |
| * Copyright (c) 2015, 2020, 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. |
| */ |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.nio.file.Files; |
| import java.util.Iterator; |
| |
| import javax.imageio.ImageIO; |
| import javax.imageio.ImageWriter; |
| import javax.imageio.metadata.IIOMetadata; |
| import javax.imageio.spi.IIORegistry; |
| import javax.imageio.spi.ImageWriterSpi; |
| import javax.imageio.stream.ImageOutputStream; |
| |
| /** |
| * @test |
| * @bug 4958064 8183349 |
| * @summary Test verifies that when we try to forcefully run |
| * prepareWriteSequence() where it is not supported |
| * will ImageIO throws an UnsupportedOperationException |
| * or not. |
| * @run main CanWriteSequence |
| */ |
| public final class CanWriteSequence { |
| |
| private static File file; |
| private static FileOutputStream fos; |
| private static ImageOutputStream ios; |
| |
| public static void main(final String[] args) throws Exception { |
| final IIORegistry registry = IIORegistry.getDefaultInstance(); |
| final Iterator<ImageWriterSpi> iter = |
| registry.getServiceProviders(ImageWriterSpi.class, |
| provider -> true, true); |
| // Validates all supported ImageWriters |
| while (iter.hasNext()) { |
| final ImageWriter writer = iter.next().createWriterInstance(); |
| System.out.println("ImageWriter = " + writer); |
| test(writer); |
| } |
| System.out.println("Test passed"); |
| } |
| |
| private static void test(final ImageWriter writer) throws Exception { |
| try { |
| file = File.createTempFile("temp", ".img"); |
| fos = new FileOutputStream(file); |
| ios = ImageIO.createImageOutputStream(fos); |
| writer.setOutput(ios); |
| final IIOMetadata data = writer.getDefaultStreamMetadata(null); |
| |
| if (writer.canWriteSequence()) { |
| writer.prepareWriteSequence(data); |
| } else { |
| try { |
| writer.prepareWriteSequence(data); |
| throw new RuntimeException( |
| "UnsupportedOperationException was not thrown"); |
| } catch (final UnsupportedOperationException ignored) { |
| // expected |
| } |
| } |
| } finally { |
| writer.dispose(); |
| if (file != null) { |
| if (ios != null) { |
| ios.close(); |
| } |
| if (fos != null) { |
| fos.close(); |
| } |
| Files.delete(file.toPath()); |
| } |
| } |
| } |
| } |