public static void main()

in src/main/java/org/apache/sling/feature/scanner/impl/fwk/FrameworkPropertiesGatherer.java [42:77]

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

    public static void main(String [] args) throws Exception {
        if (args.length != 2) {
            System.err.print("usage: FrameworkPropertiesGatherer <in props filename> <out props filename>");
            System.exit(1);
        }

        Properties inProps = new Properties();
        try (Reader reader = new FileReader(args[0])) {
            inProps.load(reader);
        }

        ServiceLoader<FrameworkFactory> ldr = ServiceLoader.load(FrameworkFactory.class);
        FrameworkFactory ff = ldr.iterator().next();

        @SuppressWarnings({ "unchecked", "rawtypes" })
        Framework fwk = ff.newFramework((Map) inProps);

        fwk.init();
        fwk.start();

        // The headers will contain the computed export packages and framework capabilities.
        Dictionary<String, String> headers = fwk.getHeaders();

        Properties outProps = new Properties();
        outProps.put(Constants.FRAMEWORK_SYSTEMPACKAGES, headers.get(Constants.EXPORT_PACKAGE));
        outProps.put(Constants.FRAMEWORK_SYSTEMCAPABILITIES, headers.get(Constants.PROVIDE_CAPABILITY));

        fwk.stop();

        try (Writer writer = new FileWriter(args[1])) {
            outProps.store(writer, "Framework exports and capabilities");
        }

        fwk.waitForStop(1000);
        System.exit(0); // To be sure
    }