DexPool.java revision 99b46173c5294d186ccf2e647b86346a22b247c8 
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
32package org.jf.dexlib2.writer.pool;
33
34import org.jf.dexlib2.ValueType;
35import org.jf.dexlib2.iface.Annotation;
36import org.jf.dexlib2.iface.AnnotationElement;
37import org.jf.dexlib2.iface.ClassDef;
38import org.jf.dexlib2.iface.Field;
39import org.jf.dexlib2.iface.reference.*;
40import org.jf.dexlib2.iface.value.*;
41import org.jf.dexlib2.immutable.instruction.ImmutableInstructionFactory;
42import org.jf.dexlib2.writer.DexWriter;
43import org.jf.dexlib2.writer.io.FileDataStore;
44import org.jf.dexlib2.writer.pool.ProtoPool.Key;
45import org.jf.util.ExceptionWithContext;
46
47import javax.annotation.Nonnull;
48import java.io.File;
49import java.io.IOException;
50import java.util.Collection;
51import java.util.Set;
52
53public class DexPool extends DexWriter<CharSequence, StringReference, CharSequence, TypeReference, Key,
54        FieldReference, MethodReference, Reference, PoolClassDef,
55        Annotation, Set<? extends Annotation>,
56        TypeListPool.Key<? extends Collection<? extends CharSequence>>, Field, PoolMethod,
57        EncodedValue, AnnotationElement> {
58
59    public static DexPool makeDexPool() {
60        return makeDexPool(15);
61    }
62
63    public static DexPool makeDexPool(int api) {
64        StringPool stringPool = new StringPool();
65        TypePool typePool = new TypePool(stringPool);
66        FieldPool fieldPool = new FieldPool(stringPool, typePool);
67        TypeListPool typeListPool = new TypeListPool(typePool);
68        ProtoPool protoPool = new ProtoPool(stringPool, typePool, typeListPool);
69        MethodPool methodPool = new MethodPool(stringPool, typePool, protoPool);
70        AnnotationPool annotationPool = new AnnotationPool(stringPool, typePool, fieldPool, methodPool);
71        AnnotationSetPool annotationSetPool = new AnnotationSetPool(annotationPool);
72        ClassPool classPool = new ClassPool(stringPool, typePool, fieldPool, methodPool, annotationSetPool,
73                typeListPool);
74
75        return new DexPool(api, stringPool, typePool, protoPool, fieldPool, methodPool, classPool, typeListPool,
76                annotationPool, annotationSetPool);
77    }
78
79    private DexPool(int api, StringPool stringPool, TypePool typePool, ProtoPool protoPool, FieldPool fieldPool,
80                    MethodPool methodPool, ClassPool classPool, TypeListPool typeListPool,
81                    AnnotationPool annotationPool, AnnotationSetPool annotationSetPool) {
82        super(api, ImmutableInstructionFactory.INSTANCE, stringPool, typePool, protoPool, fieldPool, methodPool,
83                classPool, typeListPool, annotationPool, annotationSetPool);
84    }
85
86    public static void writeTo(@Nonnull String path, @Nonnull org.jf.dexlib2.iface.DexFile input) throws IOException {
87        DexPool dexPool = makeDexPool();
88        for (ClassDef classDef: input.getClasses()) {
89            ((ClassPool)dexPool.classSection).intern(classDef);
90        }
91        dexPool.writeTo(new FileDataStore(new File(path)));
92    }
93
94    @Override protected void writeEncodedValue(@Nonnull InternalEncodedValueWriter writer,
95                                               @Nonnull EncodedValue encodedValue) throws IOException {
96        switch (encodedValue.getValueType()) {
97            case ValueType.ANNOTATION:
98                AnnotationEncodedValue annotationEncodedValue = (AnnotationEncodedValue)encodedValue;
99                writer.writeAnnotation(annotationEncodedValue.getType(), annotationEncodedValue.getElements());
100                break;
101            case ValueType.ARRAY:
102                ArrayEncodedValue arrayEncodedValue = (ArrayEncodedValue)encodedValue;
103                writer.writeArray(arrayEncodedValue.getValue());
104                break;
105            case ValueType.BOOLEAN:
106                writer.writeBoolean(((BooleanEncodedValue)encodedValue).getValue());
107                break;
108            case ValueType.BYTE:
109                writer.writeByte(((ByteEncodedValue)encodedValue).getValue());
110                break;
111            case ValueType.CHAR:
112                writer.writeChar(((CharEncodedValue)encodedValue).getValue());
113                break;
114            case ValueType.DOUBLE:
115                writer.writeDouble(((DoubleEncodedValue)encodedValue).getValue());
116                break;
117            case ValueType.ENUM:
118                writer.writeEnum(((EnumEncodedValue)encodedValue).getValue());
119                break;
120            case ValueType.FIELD:
121                writer.writeField(((FieldEncodedValue)encodedValue).getValue());
122                break;
123            case ValueType.FLOAT:
124                writer.writeFloat(((FloatEncodedValue)encodedValue).getValue());
125                break;
126            case ValueType.INT:
127                writer.writeInt(((IntEncodedValue)encodedValue).getValue());
128                break;
129            case ValueType.LONG:
130                writer.writeLong(((LongEncodedValue)encodedValue).getValue());
131                break;
132            case ValueType.METHOD:
133                writer.writeMethod(((MethodEncodedValue)encodedValue).getValue());
134                break;
135            case ValueType.NULL:
136                writer.writeNull();
137                break;
138            case ValueType.SHORT:
139                writer.writeShort(((ShortEncodedValue)encodedValue).getValue());
140                break;
141            case ValueType.STRING:
142                writer.writeString(((StringEncodedValue)encodedValue).getValue());
143                break;
144            case ValueType.TYPE:
145                writer.writeType(((TypeEncodedValue)encodedValue).getValue());
146                break;
147            default:
148                throw new ExceptionWithContext("Unrecognized value type: %d", encodedValue.getValueType());
149        }
150    }
151
152    public static void internEncodedValue(@Nonnull EncodedValue encodedValue,
153                                          @Nonnull StringPool stringPool,
154                                          @Nonnull TypePool typePool,
155                                          @Nonnull FieldPool fieldPool,
156                                          @Nonnull MethodPool methodPool) {
157        switch (encodedValue.getValueType()) {
158            case ValueType.ANNOTATION:
159                AnnotationEncodedValue annotationEncodedValue = (AnnotationEncodedValue)encodedValue;
160                typePool.intern(annotationEncodedValue.getType());
161                for (AnnotationElement element: annotationEncodedValue.getElements()) {
162                    stringPool.intern(element.getName());
163                    internEncodedValue(element.getValue(), stringPool, typePool, fieldPool, methodPool);
164                }
165                break;
166            case ValueType.ARRAY:
167                for (EncodedValue element: ((ArrayEncodedValue)encodedValue).getValue()) {
168                    internEncodedValue(element, stringPool, typePool, fieldPool, methodPool);
169                }
170                break;
171            case ValueType.STRING:
172                stringPool.intern(((StringEncodedValue)encodedValue).getValue());
173                break;
174            case ValueType.TYPE:
175                typePool.intern(((TypeEncodedValue)encodedValue).getValue());
176                break;
177            case ValueType.ENUM:
178                fieldPool.intern(((EnumEncodedValue)encodedValue).getValue());
179                break;
180            case ValueType.FIELD:
181                fieldPool.intern(((FieldEncodedValue)encodedValue).getValue());
182                break;
183            case ValueType.METHOD:
184                methodPool.intern(((MethodEncodedValue)encodedValue).getValue());
185                break;
186        }
187    }
188}
189