public static <T> T coerce(TypeType coerceTo, Class<T> clz, Object value) {
if (value == null) {
if (coerceTo != TypeType.INSTANCE && !clz.isPrimitive()) {
return null;
} else if (clz.isPrimitive()) {
if (clz == boolean.class) {
return (T) (Boolean) false;
}
return (T) (Number) 0;
}
}
switch (coerceTo) {
case STRING:
case CHAR_SEQUENCE:
return (T) value.toString();
case NUMBER:
if (value instanceof Number) {
return (T) value;
} else {
Double d = toDouble(value);
return (T) d;
}
case INT:
case INTEGER_WRAPPER:
Integer i = toInt(value);
return (T) i;
case SHORT:
case SHORT_WRAPPER:
Short s = toShort(value);
return (T) s;
case BYTE:
case BYTE_WRAPPER:
Byte by = toByte(value);
return (T) by;
case CHAR:
case CHAR_WRAPPER:
Character ch = toChar(value);
return (T) ch;
case LONG:
case LONG_WRAPPER:
Long l = toLong(value);
return (T) l;
case DOUBLE:
case DOUBLE_WRAPPER:
Double d = toDouble(value);
return (T) d;
case FLOAT:
case FLOAT_WRAPPER:
Float f = toFloat(value);
return (T) f;
case DATE:
return (T) toDate(value);
case BIG_DECIMAL:
return (T) toBigDecimal(value);
case BIG_INT:
return (T) toBigInteger(value);
case CALENDAR:
return (T) toCalendar(toDate(value));
case BOOLEAN:
case BOOLEAN_WRAPPER:
return (T) (Boolean) toBoolean(value);
case MAP:
return (T) toMap(value);
case ARRAY:
case ARRAY_INT:
case ARRAY_BYTE:
case ARRAY_SHORT:
case ARRAY_FLOAT:
case ARRAY_DOUBLE:
case ARRAY_LONG:
case ARRAY_STRING:
case ARRAY_OBJECT:
return toPrimitiveArrayIfPossible(clz, value);
case LIST:
case SET:
case COLLECTION:
return toCollection(clz, value);
case INSTANCE:
if (value instanceof Value) {
value = ((Value) value).toValue();
}
if (value instanceof Map) {
return MapObjectConversion.fromMap((Map<String, Object>) value, clz);
} else if (value instanceof List) {
return MapObjectConversion.fromList((List<Object>) value, clz);
} else if (clz.isInstance(value)) {
return (T) value;
} else {
return createFromArg(clz, value);
}
case ENUM:
return (T) toEnum((Class<? extends Enum>) clz, value);
case PATH:
return (T) IO.path(value.toString());
case CLASS:
return (T) toClass(value);
case TIME_ZONE:
return (T) toTimeZone(value);
case UUID:
return (T) toUUID(value);
case CURRENCY:
return (T) toCurrency(value);
case OBJECT:
return (T) value;
case HANDLER:
return (T) value;
default:
return createFromArg(clz, value);
}
}
