public static void main()

in dbus-java-utils/src/main/java/org/freedesktop/dbus/utils/generator/InterfaceCodeGenerator.java [396:498]
91 lines of code
27 McCabe index (conditional complexity)

    public static void main(String[] args) {

        String busName = null;
        String outputDir = null;
        DBusBusType busType = null;
        boolean ignoreDtd = true;
        String objectPath = null;
        String inputFile = null;

        for (int i = 0; i < args.length; i++) {
            String p = args[i];
            if ("--system".equals(p) || "-y".equals(p)) {
                busType = DBusBusType.SYSTEM;
            } else if ("--session".equals(p) || "-s".equals(p)) {
                busType = DBusBusType.SESSION;
            } else if ("--enable-dtd-validation".equals(p)) {
                ignoreDtd = false;
            } else if ("--help".equals(p) || "-h".equals(p)) {
                printHelp();
                System.exit(0);
            } else if ("--version".equals(p) || "-v".equals(p)) {
                version();
                System.exit(0);
            } else if ("--outputDir".equals(p) || "-o".equals(p)) {
                if (args.length > i) {
                    outputDir = args[++i];
                } else {
                    printHelp();
                    System.exit(0);
                }
            } else if ("--inputFile".equals(p) || "-i".equals(p)) {
                if (args.length > i) {
                    inputFile = args[++i];
                } else {
                    printHelp();
                    System.exit(0);
                }
            } else {
                if (null == busName) {
                    busName = p;
                } else if (null == objectPath) {
                    objectPath = p;
                } else {
                    printHelp();
                    System.exit(1);
                }
            }
        }

        if (objectPath == null) {
            objectPath = "/";
        }
        
        if (outputDir == null) {
            throw new RuntimeException("No output directory (--outputDir) given!");
        }

        Logger logger = LoggerFactory.getLogger(InterfaceCodeGenerator.class);

        String introspectionData = null;

        if (!StringUtil.isBlank(busName)) {
            if (!StringUtil.isBlank(inputFile)) {
                File file = new File(inputFile);
                if (!file.exists()) {
                    logger.error("Given input file {} does not exist", file);
                    System.exit(1);
                }
                introspectionData = FileIoUtil.readFileToString(file);
            } else {
                try {
                    logger.info("Introspecting: { Interface: {}, Busname: {} }", objectPath, busName);
    
                    DBusConnection conn = DBusConnection.getConnection(busType);
    
                    Introspectable in = conn.getRemoteObject(busName, objectPath, Introspectable.class);
                    introspectionData = in.Introspect();
                    if (StringUtil.isBlank(introspectionData)) {
                        logger.error("Failed to get introspection data");
                        System.exit(1);
                    }
                    conn.disconnect();
                } catch (DBusExecutionException | DBusException _ex) {
                    logger.error("Failure in DBus Communications. ", _ex);
                    System.exit(1);
    
                }
            }
            
            InterfaceCodeGenerator ci2 = new InterfaceCodeGenerator(introspectionData, objectPath, busName);
            try {

                Map<File, String> analyze = ci2.analyze(ignoreDtd);
                writeToFile(outputDir, analyze);
                logger.info("Interface creation finished");
            } catch (Exception _ex) {
                logger.error("Error while analyzing introspection data", _ex);
            }
        } else {
            logger.error("Busname missing!");
            System.exit(1);
        }
    }