Method getDoubleValue

APIJSONORM/src/main/java/apijson/JSON.java:568–587

Get a double value from a Map @param map Source map @param key The key @return The double value @throws IllegalArgumentException If value cannot be converted to double

(Map<String, Object> map, String key)

	 * @throws IllegalArgumentException If value cannot be converted to double
	 */
	public static double getDoubleValue(Map<String, Object> map, String key) throws IllegalArgumentException {
		Object value = map == null || key == null ? null : map.get(key);
		if (value == null) {
			return 0;
		}

		if (value instanceof Number) {
			return ((Number) value).doubleValue();
		}

		if (value instanceof String) {
			try {
				return Double.parseDouble((String) value);
			} catch (NumberFormatException e) {
				throw new IllegalArgumentException("Cannot convert String value '" + value + "' to double: " + e.getMessage());
			}
		}

		throw new IllegalArgumentException("Cannot convert value of type " + value.getClass().getName() + " to double");
	}


	/**