1 /* 2 * Copyright (c) 2005, 2015, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javax.imageio.plugins.tiff; 27 28 import java.util.ArrayList; 29 import java.util.List; 30 31 /** 32 * A class representing the tags found in an Exif Interoperability IFD. 33 * 34 * @since 1.9 35 * @see ExifTIFFTagSet 36 */ 37 public class ExifInteroperabilityTagSet extends TIFFTagSet { 38 /** 39 * A tag indicating the identification of the Interoperability rule 40 * (type ASCII). 41 * 42 * @see #INTEROPERABILITY_INDEX_R98 43 * @see #INTEROPERABILITY_INDEX_THM 44 */ 45 public static final int TAG_INTEROPERABILITY_INDEX = 1; 46 47 /** 48 * A value to be used with the "InteroperabilityIndex" tag. Indicates 49 * a file conforming to the R98 file specification of Recommended Exif 50 * Interoperability Rules (ExifR98) or to the DCF basic file stipulated 51 * by the Design Rule for Camera File System (type ASCII). 52 * 53 * @see #TAG_INTEROPERABILITY_INDEX 54 */ 55 public static final String INTEROPERABILITY_INDEX_R98 = "R98"; 56 57 /** 58 * A value to be used with the "InteroperabilityIndex" tag. Indicates 59 * a file conforming to the DCF thumbnail file stipulated by the Design 60 * rule for Camera File System (type ASCII). 61 * 62 * @see #TAG_INTEROPERABILITY_INDEX 63 */ 64 public static final String INTEROPERABILITY_INDEX_THM = "THM"; 65 66 private static ExifInteroperabilityTagSet theInstance = null; 67 68 static class InteroperabilityIndex extends TIFFTag { 69 70 public InteroperabilityIndex() { 71 super("InteroperabilityIndex", 72 TAG_INTEROPERABILITY_INDEX, 73 1 << TIFFTag.TIFF_ASCII); 74 } 75 } 76 77 private static List<TIFFTag> tags; 78 79 private static void initTags() { 80 tags = new ArrayList<TIFFTag>(42); 81 82 tags.add(new ExifInteroperabilityTagSet.InteroperabilityIndex()); 83 } 84 85 private ExifInteroperabilityTagSet() { 86 super(tags); 87 } 88 89 /** 90 * Returns the shared instance of 91 * <code>ExifInteroperabilityTagSet</code>. 92 * 93 * @return the <code>ExifInteroperabilityTagSet</code> instance. 94 */ 95 public synchronized static ExifInteroperabilityTagSet getInstance() { 96 if (theInstance == null) { 97 initTags(); 98 theInstance = new ExifInteroperabilityTagSet(); 99 tags = null; 100 } 101 return theInstance; 102 } 103 }