public static void requireAtLeastOneLight()

in s1e1-totally-lit/hue-lifx-java/src/main/java/com/awslabs/iot_all_the_things/special_projects_edition/totally_lit/lifx/LiFXShared.java [33:41]

• 8 lines of code
• 2 McCabe index (conditional complexity)

    public static void requireAtLeastOneLight() {
        // Make sure there are some lights. If not give the user some hints on what might be wrong.
        if (getLightCount() == 0) {
            log.error("No LiFX lights detected. If you have LiFX lights on your network try turning off your firewall and run this program again.");
            log.error("");
            log.error("On MacOS you can disable your firewall by running this command: sudo pfctl -F all");
            System.exit(1);
        }
    }