Method getBoolean

APIJSONORM/src/main/java/apijson/JSON.java:597–624

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

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

	 * @throws IllegalArgumentException If value cannot be converted to boolean
	 */
	public static Boolean getBoolean(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 Boolean) {
			return (Boolean) value;
		}

		if (value instanceof String) {
			String str = ((String) value).toLowerCase();
			if (str.equals("true") || str.equals("false")) {
				return Boolean.parseBoolean(str);
			}
			throw new IllegalArgumentException("Cannot convert String value '" + value + "' to boolean");
		}

		if (value instanceof Number) {
			int intValue = ((Number) value).intValue();
			if (intValue == 0 || intValue == 1) {
				return intValue != 0;
			}
			throw new IllegalArgumentException("Cannot convert Number value '" + value + "' to boolean. Only 0 and 1 are supported.");
		}

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

	/**
	 * Get a boolean value from a Map