ValueType.java revision 00fc68adf2e39aeb9fed35293f2576bbe729ec4b 
1/*
2 * [The "BSD licence"]
3 * Copyright (c) 2010 Ben Gruver (JesusFreke)
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29package org.jf.dexlib.EncodedValue;
30
31import org.jf.dexlib.Util.SparseArray;
32
33public enum ValueType {
34
35    VALUE_BYTE((byte) 0x00),
36    VALUE_SHORT((byte) 0x02),
37    VALUE_CHAR((byte) 0x03),
38    VALUE_INT((byte) 0x04),
39    VALUE_LONG((byte) 0x06),
40    VALUE_FLOAT((byte) 0x10),
41    VALUE_DOUBLE((byte) 0x11),
42    VALUE_STRING((byte) 0x17),
43    VALUE_TYPE((byte) 0x18),
44    VALUE_FIELD((byte) 0x19),
45    VALUE_METHOD((byte) 0x1a),
46    VALUE_ENUM((byte) 0x1b),
47    VALUE_ARRAY((byte) 0x1c),
48    VALUE_ANNOTATION((byte) 0x1d),
49    VALUE_NULL((byte) 0x1e),
50    VALUE_BOOLEAN((byte) 0x1f);
51
52    /**
53     * A map to facilitate looking up a <code>ValueType</code> by byte value
54     */
55    private final static SparseArray<ValueType> valueTypeIntegerMap;
56
57    static {
58        /** build the <code>valueTypeIntegerMap</code> object */
59        valueTypeIntegerMap = new SparseArray<ValueType>(16);
60
61        for (ValueType valueType : ValueType.values()) {
62            valueTypeIntegerMap.put(valueType.value, valueType);
63        }
64    }
65
66    /**
67     * The byte value for this ValueType
68     */
69    public final byte value;
70
71    private ValueType(byte value) {
72        this.value = value;
73    }
74
75    /**
76     * Converts a byte value to the corresponding ValueType enum value,
77     * or null if the value isn't a valid ValueType value
78     *
79     * @param valueType the byte value to convert to a ValueType
80     * @return the ValueType enum value corresponding to valueType, or null
81     *         if not a valid ValueType value
82     */
83    public static ValueType fromByte(byte valueType) {
84        return valueTypeIntegerMap.get(valueType);
85    }
86}