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| 1 | +package com.jsoniter; |
| 2 | + |
| 3 | +import java.lang.reflect.Array; |
| 4 | +import java.util.Collection; |
| 5 | +import java.util.List; |
| 6 | +import java.util.Map; |
| 7 | + |
| 8 | +public class Any { |
| 9 | + |
| 10 | + private final Object val; |
| 11 | + public Object lastAccessed; |
| 12 | + |
| 13 | + public Any(Object val) { |
| 14 | + this.val = val; |
| 15 | + } |
| 16 | + |
| 17 | + public ValueType getValueType(Object... keys) { |
| 18 | + try { |
| 19 | + lastAccessed = getPath(val, keys); |
| 20 | + if (lastAccessed == null) { |
| 21 | + return ValueType.NULL; |
| 22 | + } |
| 23 | + Class<?> clazz = lastAccessed.getClass(); |
| 24 | + if (clazz == String.class) { |
| 25 | + return ValueType.STRING; |
| 26 | + } |
| 27 | + if (clazz.isArray()) { |
| 28 | + return ValueType.ARRAY; |
| 29 | + } |
| 30 | + if (lastAccessed instanceof Number) { |
| 31 | + return ValueType.NUMBER; |
| 32 | + } |
| 33 | + if (lastAccessed instanceof List) { |
| 34 | + return ValueType.ARRAY; |
| 35 | + } |
| 36 | + return ValueType.OBJECT; |
| 37 | + } catch (ClassCastException e) { |
| 38 | + return ValueType.INVALID; |
| 39 | + } catch (IndexOutOfBoundsException e) { |
| 40 | + return ValueType.INVALID; |
| 41 | + } |
| 42 | + } |
| 43 | + |
| 44 | + public Object get(Object... keys) { |
| 45 | + try { |
| 46 | + return lastAccessed = getPath(val, keys); |
| 47 | + } catch (ClassCastException e) { |
| 48 | + return null; |
| 49 | + } catch (IndexOutOfBoundsException e) { |
| 50 | + return null; |
| 51 | + } |
| 52 | + } |
| 53 | + |
| 54 | + public boolean exists(Object... keys) { |
| 55 | + try { |
| 56 | + lastAccessed = getPath(val, keys); |
| 57 | + return true; |
| 58 | + } catch (ClassCastException e) { |
| 59 | + return false; |
| 60 | + } catch (IndexOutOfBoundsException e) { |
| 61 | + return false; |
| 62 | + } |
| 63 | + } |
| 64 | + |
| 65 | + public String toString() { |
| 66 | + return toString(new Object[0]); |
| 67 | + } |
| 68 | + |
| 69 | + public String toString(Object... keys) { |
| 70 | + get(keys); |
| 71 | + if (lastAccessed == null) { |
| 72 | + return "null"; |
| 73 | + } |
| 74 | + return lastAccessed.toString(); |
| 75 | + } |
| 76 | + |
| 77 | + @Override |
| 78 | + public boolean equals(Object o) { |
| 79 | + if (this == o) return true; |
| 80 | + if (o == null || getClass() != o.getClass()) return false; |
| 81 | + |
| 82 | + Any any = (Any) o; |
| 83 | + |
| 84 | + return val != null ? val.equals(any.val) : any.val == null; |
| 85 | + |
| 86 | + } |
| 87 | + |
| 88 | + @Override |
| 89 | + public int hashCode() { |
| 90 | + return val != null ? val.hashCode() : 0; |
| 91 | + } |
| 92 | + |
| 93 | + public int toInt(Object... keys) { |
| 94 | + get(keys); |
| 95 | + if (lastAccessed == null) { |
| 96 | + return 0; |
| 97 | + } |
| 98 | + if (lastAccessed.getClass() == String.class) { |
| 99 | + return Integer.valueOf((String) lastAccessed); |
| 100 | + } |
| 101 | + Number number = (Number) lastAccessed; |
| 102 | + return number.intValue(); |
| 103 | + } |
| 104 | + |
| 105 | + public short toShort(Object... keys) { |
| 106 | + get(keys); |
| 107 | + if (lastAccessed == null) { |
| 108 | + return 0; |
| 109 | + } |
| 110 | + if (lastAccessed.getClass() == String.class) { |
| 111 | + return Short.valueOf((String) lastAccessed); |
| 112 | + } |
| 113 | + Number number = (Number) lastAccessed; |
| 114 | + return number.shortValue(); |
| 115 | + } |
| 116 | + |
| 117 | + public long toLong(Object... keys) { |
| 118 | + get(keys); |
| 119 | + if (lastAccessed == null) { |
| 120 | + return 0; |
| 121 | + } |
| 122 | + if (lastAccessed.getClass() == String.class) { |
| 123 | + return Long.valueOf((String) lastAccessed); |
| 124 | + } |
| 125 | + Number number = (Number) lastAccessed; |
| 126 | + return number.longValue(); |
| 127 | + } |
| 128 | + |
| 129 | + public float toFloat(Object... keys) { |
| 130 | + get(keys); |
| 131 | + if (lastAccessed == null) { |
| 132 | + return 0; |
| 133 | + } |
| 134 | + if (lastAccessed.getClass() == String.class) { |
| 135 | + return Float.valueOf((String) lastAccessed); |
| 136 | + } |
| 137 | + Number number = (Number) lastAccessed; |
| 138 | + return number.floatValue(); |
| 139 | + } |
| 140 | + |
| 141 | + public double toDouble(Object... keys) { |
| 142 | + get(keys); |
| 143 | + if (lastAccessed == null) { |
| 144 | + return 0; |
| 145 | + } |
| 146 | + if (lastAccessed.getClass() == String.class) { |
| 147 | + return Double.valueOf((String) lastAccessed); |
| 148 | + } |
| 149 | + Number number = (Number) lastAccessed; |
| 150 | + return number.doubleValue(); |
| 151 | + } |
| 152 | + |
| 153 | + public boolean toBoolean(Object... keys) { |
| 154 | + get(keys); |
| 155 | + if (lastAccessed == null) { |
| 156 | + return false; |
| 157 | + } |
| 158 | + if (lastAccessed instanceof Number) { |
| 159 | + Number number = (Number) lastAccessed; |
| 160 | + return number.intValue() != 0; |
| 161 | + } |
| 162 | + if (lastAccessed.getClass().isArray()) { |
| 163 | + return Array.getLength(lastAccessed) != 0; |
| 164 | + } |
| 165 | + if (lastAccessed instanceof Collection) { |
| 166 | + Collection col = (Collection) lastAccessed; |
| 167 | + return col.size() != 0; |
| 168 | + } |
| 169 | + if (lastAccessed instanceof Map) { |
| 170 | + Map map = (Map) lastAccessed; |
| 171 | + return map.size() != 0; |
| 172 | + } |
| 173 | + return true; |
| 174 | + } |
| 175 | + |
| 176 | + private static Object getPath(Object val, Object... keys) { |
| 177 | + if (keys.length == 0) { |
| 178 | + return val; |
| 179 | + } |
| 180 | + Object key = keys[0]; |
| 181 | + if (key instanceof Integer) { |
| 182 | + Object nextVal = getFromArrayOrList(val, (Integer)key); |
| 183 | + Object[] nextKeys = new Object[keys.length - 1]; |
| 184 | + System.arraycopy(keys, 1, nextKeys, 0, nextKeys.length); |
| 185 | + return getPath(nextVal, nextKeys); |
| 186 | + } |
| 187 | + if (key instanceof String) { |
| 188 | + Object nextVal = getFromMap(val, (String)key); |
| 189 | + Object[] nextKeys = new Object[keys.length - 1]; |
| 190 | + System.arraycopy(keys, 1, nextKeys, 0, nextKeys.length); |
| 191 | + return getPath(nextVal, nextKeys); |
| 192 | + } |
| 193 | + throw new RuntimeException("invalid key type: " + key); |
| 194 | + } |
| 195 | + |
| 196 | + private static Object getFromMap(Object val, String key) { |
| 197 | + Map map = (Map) val; |
| 198 | + return map.get(key); |
| 199 | + } |
| 200 | + |
| 201 | + private static Object getFromArrayOrList(Object val, Integer key) { |
| 202 | + if (val.getClass().isArray()) { |
| 203 | + return Array.get(val, key); |
| 204 | + } |
| 205 | + List list = (List) val; |
| 206 | + return list.get(key); |
| 207 | + } |
| 208 | +} |
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