1 /* 2 * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6287880 27 * @summary Test verifies that default metadata for stream and image returned by 28 * GIFImageWriter can be modified by the tree representation 29 */ 30 31 import java.awt.image.BufferedImage; 32 33 import javax.imageio.ImageIO; 34 import javax.imageio.ImageTypeSpecifier; 35 import javax.imageio.ImageWriteParam; 36 import javax.imageio.ImageWriter; 37 import javax.imageio.metadata.IIOInvalidTreeException; 38 import javax.imageio.metadata.IIOMetadata; 39 import javax.imageio.metadata.IIOMetadataNode; 40 41 public class WriteMetadataTest { 42 private static String format = "GIF"; 43 44 public static void main(String[] args) { 45 ImageWriter w = ImageIO.getImageWritersByFormatName(format).next(); 46 if (w == null) { 47 throw new RuntimeException("No available writers for format " + format); 48 } 49 ImageWriteParam p = w.getDefaultWriteParam(); 50 51 ImageTypeSpecifier t = 52 ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB); 53 54 IIOMetadata m = w.getDefaultImageMetadata(t, p); 55 System.out.println("Default image metadata is " + m); 56 testWritableMetadata(m); 57 58 IIOMetadata sm = w.getDefaultStreamMetadata(p); 59 System.out.println("Default stream metadata is " + sm); 60 testWritableMetadata(sm); 61 } 62 63 public static void testWritableMetadata(IIOMetadata m) { 64 String nativeFormatName = 65 m.getNativeMetadataFormatName(); 66 System.out.println("Format: " + nativeFormatName); 67 IIOMetadataNode root = (IIOMetadataNode)m.getAsTree(nativeFormatName); 68 if (m.isReadOnly()) { 69 throw new RuntimeException("Metadata is read only!"); 70 } 71 try { 72 m.setFromTree(nativeFormatName, root); 73 } catch (IIOInvalidTreeException e) { 74 e.printStackTrace(); 75 throw new RuntimeException("Test failed!", e); 76 } catch (IllegalStateException e) { 77 throw new RuntimeException("Test failed!", e); 78 } 79 System.out.println("Test passed.\n\n"); 80 } 81 }