Method getMap

APIJSONORM/src/main/java/apijson/JSON.java:329–341

Get a Map value from a Map @param map Source map @param key The key @return The Map value @throws IllegalArgumentException If value is not a Map and cannot be converted

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

	 * @throws IllegalArgumentException If value is not a Map and cannot be converted
	 */
	@SuppressWarnings("unchecked")
	public static <K, V> Map<K, V> getMap(Map<String, Object> map, String key) throws IllegalArgumentException {
		Object value = map == null || key == null ? null : map.get(key);
		if (value == null) {
			return null;
		}

		if (value instanceof Map) {
			return (Map<K, V>) value;
		}

		throw new IllegalArgumentException("Value for key '" + key + "' is not a Map: " + value.getClass().getName());
	}

	/**
	 * Get a List value from a Map