1 | package org.farng.mp3.object; |
2 | |
3 | import java.util.Arrays; |
4 | |
5 | /** |
6 | * ID3v2 and Lyrics3v2 tags have individual fields <code>AbstractMP3Fragment</code>s Then each fragment is broken down |
7 | * in to individual <code>AbstractMP3Object</code>s |
8 | * |
9 | * @author Eric Farng |
10 | * @version $Revision: 1.4 $ |
11 | */ |
12 | public abstract class AbstractMP3Object extends java.lang.Object { |
13 | |
14 | protected Object value = null; |
15 | protected String identifier = ""; |
16 | |
17 | /** |
18 | * Creates a new AbstractMP3Object object. |
19 | */ |
20 | public AbstractMP3Object() { |
21 | this.value = null; |
22 | this.identifier = ""; |
23 | } |
24 | |
25 | /** |
26 | * Creates a new AbstractMP3Object object. |
27 | */ |
28 | public AbstractMP3Object(final AbstractMP3Object copyObject) { |
29 | // no copy constructor in super class |
30 | this.identifier = new String(copyObject.identifier); |
31 | if (copyObject.value == null) { |
32 | this.value = null; |
33 | } else if (copyObject.value instanceof String) { |
34 | this.value = new String((String) copyObject.value); |
35 | } else if (copyObject.value instanceof Boolean) { |
36 | this.value = new Boolean(((Boolean) copyObject.value).booleanValue()); |
37 | } else if (copyObject.value instanceof Byte) { |
38 | this.value = new Byte(((Byte) copyObject.value).byteValue()); |
39 | } else if (copyObject.value instanceof Character) { |
40 | this.value = new Character(((Character) copyObject.value).charValue()); |
41 | } else if (copyObject.value instanceof Double) { |
42 | this.value = new Double(((Double) copyObject.value).doubleValue()); |
43 | } else if (copyObject.value instanceof Float) { |
44 | this.value = new Float(((Float) copyObject.value).floatValue()); |
45 | } else if (copyObject.value instanceof Integer) { |
46 | this.value = new Integer(((Integer) copyObject.value).intValue()); |
47 | } else if (copyObject.value instanceof Long) { |
48 | this.value = new Long(((Long) copyObject.value).longValue()); |
49 | } else if (copyObject.value instanceof Short) { |
50 | this.value = new Short(((Short) copyObject.value).shortValue()); |
51 | } else if (copyObject.value instanceof boolean[]) { |
52 | this.value = ((boolean[]) copyObject.value).clone(); |
53 | } else if (copyObject.value instanceof byte[]) { |
54 | this.value = ((byte[]) copyObject.value).clone(); |
55 | } else if (copyObject.value instanceof char[]) { |
56 | this.value = ((char[]) copyObject.value).clone(); |
57 | } else if (copyObject.value instanceof double[]) { |
58 | this.value = ((double[]) copyObject.value).clone(); |
59 | } else if (copyObject.value instanceof float[]) { |
60 | this.value = ((float[]) copyObject.value).clone(); |
61 | } else if (copyObject.value instanceof int[]) { |
62 | this.value = ((int[]) copyObject.value).clone(); |
63 | } else if (copyObject.value instanceof long[]) { |
64 | this.value = ((long[]) copyObject.value).clone(); |
65 | } else if (copyObject.value instanceof short[]) { |
66 | this.value = ((short[]) copyObject.value).clone(); |
67 | } else if (copyObject.value instanceof Object[]) { |
68 | this.value = ((Object[]) copyObject.value).clone(); |
69 | } else { |
70 | throw new UnsupportedOperationException("Unable to create copy of class " + copyObject.getClass()); |
71 | } |
72 | } |
73 | |
74 | public String getIdentifier() { |
75 | return this.identifier; |
76 | } |
77 | |
78 | public void setValue(final Object value) { |
79 | this.value = value; |
80 | } |
81 | |
82 | public Object getValue() { |
83 | return this.value; |
84 | } |
85 | |
86 | public final void readByteArray(final byte[] arr) { |
87 | readByteArray(arr, 0); |
88 | } |
89 | |
90 | public final void readString(final String str) { |
91 | readString(str, 0); |
92 | } |
93 | |
94 | public abstract int getSize(); |
95 | |
96 | public void readByteArray(final byte[] arr, final int offset) { |
97 | readString(new String(arr), offset); |
98 | } |
99 | |
100 | public void readString(final String str, final int offset) { |
101 | readByteArray(str.substring(offset).getBytes(), 0); |
102 | } |
103 | |
104 | public abstract String toString(); |
105 | |
106 | public boolean equals(final Object obj) { |
107 | if ((obj instanceof AbstractMP3Object) == false) { |
108 | return false; |
109 | } |
110 | final AbstractMP3Object abstractMp3Object = (AbstractMP3Object) obj; |
111 | if (this.identifier.equals(abstractMp3Object.identifier) == false) { |
112 | return false; |
113 | } |
114 | if ((this.value == null) && (abstractMp3Object.value == null)) { |
115 | return true; |
116 | } else if ((this.value == null) || (abstractMp3Object.value == null)) { |
117 | return false; |
118 | } |
119 | |
120 | // boolean[] |
121 | if (this.value instanceof boolean[] && abstractMp3Object.value instanceof boolean[]) { |
122 | if (Arrays.equals((boolean[]) this.value, (boolean[]) abstractMp3Object.value) == false) { |
123 | return false; |
124 | } |
125 | |
126 | // byte[] |
127 | } else if (this.value instanceof byte[] && abstractMp3Object.value instanceof byte[]) { |
128 | if (Arrays.equals((byte[]) this.value, (byte[]) abstractMp3Object.value) == false) { |
129 | return false; |
130 | } |
131 | |
132 | // char[] |
133 | } else if (this.value instanceof char[] && abstractMp3Object.value instanceof char[]) { |
134 | if (Arrays.equals((char[]) this.value, (char[]) abstractMp3Object.value) == false) { |
135 | return false; |
136 | } |
137 | |
138 | // double[] |
139 | } else if (this.value instanceof double[] && abstractMp3Object.value instanceof double[]) { |
140 | if (Arrays.equals((double[]) this.value, (double[]) abstractMp3Object.value) == false) { |
141 | return false; |
142 | } |
143 | |
144 | // float[] |
145 | } else if (this.value instanceof float[] && abstractMp3Object.value instanceof float[]) { |
146 | if (Arrays.equals((float[]) this.value, (float[]) abstractMp3Object.value) == false) { |
147 | return false; |
148 | } |
149 | |
150 | // int[] |
151 | } else if (this.value instanceof int[] && abstractMp3Object.value instanceof int[]) { |
152 | if (Arrays.equals((int[]) this.value, (int[]) abstractMp3Object.value) == false) { |
153 | return false; |
154 | } |
155 | |
156 | // long[] |
157 | } else if (this.value instanceof long[] && abstractMp3Object.value instanceof long[]) { |
158 | if (Arrays.equals((long[]) this.value, (long[]) abstractMp3Object.value) == false) { |
159 | return false; |
160 | } |
161 | |
162 | // Object[] |
163 | } else if (this.value instanceof Object[] && abstractMp3Object.value instanceof Object[]) { |
164 | if (Arrays.equals((Object[]) this.value, (Object[]) abstractMp3Object.value) == false) { |
165 | return false; |
166 | } |
167 | |
168 | // short[] |
169 | } else if (this.value instanceof short[] && abstractMp3Object.value instanceof short[]) { |
170 | if (Arrays.equals((short[]) this.value, (short[]) abstractMp3Object.value) == false) { |
171 | return false; |
172 | } |
173 | } else if (this.value.equals(abstractMp3Object.value) == false) { |
174 | return false; |
175 | } |
176 | return true; |
177 | } |
178 | |
179 | public byte[] writeByteArray() { |
180 | return writeString().getBytes(); |
181 | } |
182 | |
183 | public String writeString() { |
184 | return new String(writeByteArray()); |
185 | } |
186 | } |