| 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 | } |