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1 /*
2  * Copyright 2013, Google Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met:
8  *
9  *     * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *     * Redistributions in binary form must reproduce the above
12  * copyright notice, this list of conditions and the following disclaimer
13  * in the documentation and/or other materials provided with the
14  * distribution.
15  *     * Neither the name of Google Inc. nor the names of its
16  * contributors may be used to endorse or promote products derived from
17  * this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 package org.jf.dexlib2.dexbacked.raw;
33 
34 import org.jf.dexlib2.dexbacked.DexBackedDexFile;
35 import org.jf.dexlib2.dexbacked.raw.util.DexAnnotator;
36 import org.jf.dexlib2.util.AnnotatedBytes;
37 
38 import javax.annotation.Nonnull;
39 import javax.annotation.Nullable;
40 
41 public class TypeIdItem {
42     public static final int ITEM_SIZE = 4;
43 
44     @Nonnull
makeAnnotator(@onnull DexAnnotator annotator, @Nonnull MapItem mapItem)45     public static SectionAnnotator makeAnnotator(@Nonnull DexAnnotator annotator, @Nonnull MapItem mapItem) {
46         return new SectionAnnotator(annotator, mapItem) {
47             @Nonnull @Override public String getItemName() {
48                 return "type_id_item";
49             }
50 
51             @Override
52             protected void annotateItem(@Nonnull AnnotatedBytes out, int itemIndex, @Nullable String itemIdentity) {
53                 int stringIndex = dexFile.readSmallUint(out.getCursor());
54                 out.annotate(4, StringIdItem.getReferenceAnnotation(dexFile, stringIndex));
55             }
56         };
57     }
58 
59     @Nonnull
60     public static String getReferenceAnnotation(@Nonnull DexBackedDexFile dexFile, int typeIndex) {
61         try {
62             String typeString = dexFile.getType(typeIndex);
63             return String.format("type_id_item[%d]: %s", typeIndex, typeString);
64         } catch (Exception ex) {
65             ex.printStackTrace(System.err);
66         }
67         return String.format("type_id_item[%d]", typeIndex);
68     }
69 
70     @Nonnull
71     public static String getOptionalReferenceAnnotation(@Nonnull DexBackedDexFile dexFile, int typeIndex) {
72         if (typeIndex == -1) {
73             return "type_id_item[NO_INDEX]";
74         }
75         return getReferenceAnnotation(dexFile, typeIndex);
76     }
77 
78     public static String[] getTypes(@Nonnull RawDexFile dexFile) {
79         MapItem mapItem = dexFile.getMapItemForSection(ItemType.TYPE_ID_ITEM);
80         if (mapItem == null) {
81             return new String[0];
82         }
83 
84         int typeCount = mapItem.getItemCount();
85         String[] ret = new String[typeCount];
86         for (int i=0; i<typeCount; i++) {
87             ret[i] = dexFile.getType(i);
88         }
89         return ret;
90     }
91 }
92