public static void main()

in src/main/java/org/apache/tomcat/jakartaee/MigrationCLI.java [52:112]
48 lines of code
10 McCabe index (conditional complexity)

    public static void main(String[] args) throws IOException {

        // Defaults
        System.setProperty("java.util.logging.SimpleFormatter.format", "%5$s%n");
        Migration migration = new Migration();

        // Process arguments
        List<String> arguments = new ArrayList<>(Arrays.asList(args));

        // Process the custom log level if present
        // Use an iterator so we can remove the log level argument if found
        Iterator<String> iter = arguments.iterator();
        while (iter.hasNext()) {
            String argument = iter.next();
            if (argument.startsWith(EXCLUDE_ARG)) {
                iter.remove();
                String exclude = argument.substring(EXCLUDE_ARG.length());
                migration.addExclude(exclude);
            } else if (argument.startsWith(LOGLEVEL_ARG)) {
                iter.remove();
                String logLevelName = argument.substring(LOGLEVEL_ARG.length());
                Level level = null;
                try {
                    level = Level.parse(logLevelName.toUpperCase(Locale.ENGLISH));
                } catch (IllegalArgumentException iae) {
                    invalidArguments();
                }
                // Configure the explicit level
                Logger.getGlobal().getParent().getHandlers()[0].setLevel(level);
                Logger.getGlobal().getParent().setLevel(level);
            } else if (argument.startsWith(PROFILE_ARG)) {
                iter.remove();
                String profileName = argument.substring(PROFILE_ARG.length());
                try {
                    EESpecProfile profile = EESpecProfiles.valueOf(profileName.toUpperCase(Locale.ENGLISH));
                    migration.setEESpecProfile(profile);
                } catch (IllegalArgumentException e) {
                    // Invalid profile value
                    invalidArguments();
                }
            } else if (argument.equals(ZIPINMEMORY_ARG)) {
                iter.remove();
                migration.setZipInMemory(true);
            } else if (argument.equals(MATCHEXCLUDESPATH_ARG)) {
                iter.remove();
                migration.setMatchExcludesAgainstPathName(true);
            }
        }

        if (arguments.size() != 2) {
            invalidArguments();
        }

        String source = arguments.get(0);
        String dest = arguments.get(1);

        migration.setSource(new File(source));
        migration.setDestination(new File(dest));

        migration.execute();
    }