public static void main()

in maven2-plugins/myfaces-i18n-plugin/src/main/java/org/apache/myfaces/buildtools/maven2/plugin/i18n/uixtools/JSLocaleElementsGenerator.java [42:219]
135 lines of code
24 McCabe index (conditional complexity)

  public static void main(
    String[] args
    )
  {

    if ((args.length == 1) && ("?".equals(args[0])))
    {
      System.out.println("Generates JavaScript Locale information files");
      System.out.println("for the Locales available in the JVM.");
      System.out.println("These files are used by the Cabo HTML client");
      System.out.println("logic to handle date formatting and validation.");
      System.out.println();
      System.out.println("Parameters:");
      System.out.println("\tprettyPrint=false\tTurns off pretty printed output");
      System.out.println("\toutDir=[path]\t\tDirectory path to write JavaScript files to");
      System.out.println("\tsourceDir=[path]\t\tRoot directory path to write Java source to");
      System.out.println(
          "\tbundleOutDir=[path]\t\tRoot directory path to write " +
          "Java ResourceBundles to (defaults to sourceDir).");
      System.out.println(
          "\tvariant=[variant name]\t\tIf supplied utility will generate " +
          "ResourceBundles for this variant, and nothing else.");
      System.out.println("\tverbose=true\t\tTurns on verbose output");
      System.out.println("\tgenerateBundleBaseOnly=true\t\tGenerates the base LocaleElement.java file only");
      System.exit(0);
    }

    // whether the output should be pretty printed for legibility
    boolean prettyPrint = getArgBooleanValue(args, "prettyPrint", true);

    // whether verbose ouput should be generated.
    boolean verbose = getArgBooleanValue(args, "verbose", false);

    boolean writeSource = getArgBooleanValue(args, "writeSource", true);
    boolean writeJavascript = getArgBooleanValue(args, "writeJavascript", true);

    // whether only the Base LocaleElements.java file should be created.
    // this is based on the Locale.US
    boolean generateBundleBaseOnly = getArgBooleanValue(args,"generateBundleBaseOnly",false);

    // the output directory
    String outDir = getArgStringValue(args, "outDir", null);

    if (outDir == null)
    {
      outDir = System.getProperty("user.dir") +
               File.separator +
               _DEFAULT_LOCATION_PATH;
    }

    if (!outDir.endsWith(File.separator))
    {
      outDir = outDir + File.separator;
    }


    // the requested variant
    String variant = getArgStringValue(args, "variant", null);
    boolean writeAll = true;
    if (variant != null)
    {
      writeAll = false;
      variant = variant.toUpperCase();
    }

    // the source directory
    String sourceDir = getArgStringValue(args, "sourceDir", null);

    if (sourceDir == null)
    {
      sourceDir = System.getProperty("user.dir");
    }

    String bundleOutDir = getArgStringValue(args, "bundleOutDir", null);

    if (bundleOutDir == null)
    {
      bundleOutDir = sourceDir;
    }

    // The bundle output dir is the base of the heirarchy, we'll actually put
    // the files into the appropriate sub directory for the package.
    String fullBundleOutDir = (bundleOutDir
                               + (bundleOutDir.endsWith(File.separator)
                                  ? ""
                                  : File.separator)
                              + _DEFAULT_BUNDLE_LOCATION_PATH);

    String version = getArgStringValue(args, "version", null);
    version = VersionUtils.normalizeVersionSuffix(version);

    if (verbose)
    {
      System.out.println("Writing files to: " + outDir);
      if (writeAll)
      {
        System.out.println("Writing source to: " + sourceDir);
      }
      System.out.println("Writing bundles to: " + fullBundleOutDir);
    }

    try
    {
      File localeListFile = null;

      if (writeSource)
      {
        (new File(fullBundleOutDir)).mkdirs();
      }

      if (writeJavascript)
      {
        (new File(outDir)).mkdirs();
      }

      if (writeAll && writeSource && !generateBundleBaseOnly)
      {
        localeListFile = new File(sourceDir, _LOCALE_LIST_PATH);
        localeListFile.getParentFile().mkdirs();
        localeListFile.createNewFile();
      }

      Locale[] locales = null;

      if (generateBundleBaseOnly)
      {
         locales = new Locale[1];
         locales[0] = Locale.US;
      }
      else
      {
        locales = Locale.getAvailableLocales();
      }

      //
      // loop through the available Locales, writing their contents out
      // as JavaScript libraries and/or ResourceBundles
      //
      for (int i = 0; i < locales.length; i++)
      {
        // write the JavaSCript library for this locale
        _generateJSLocaleElements(outDir, fullBundleOutDir, locales[i],
                                  variant, prettyPrint, verbose,
                                  writeJavascript, writeSource, generateBundleBaseOnly, version);
      }

      // And write out a listing of all the locales, but  not when we want to
      // just generate the base Resource file.
      if (writeAll && writeSource && !generateBundleBaseOnly)
      {
        Writer sourceWriter = new FileWriter(localeListFile);
        sourceWriter.write(_LOCALE_LIST_CODE_START);

        for (int i = 0; i < locales.length; i++)
        {
          sourceWriter.write("    new Locale(\"");
          sourceWriter.write(locales[i].getLanguage());
          sourceWriter.write("\",\"");
          sourceWriter.write(locales[i].getCountry());
          sourceWriter.write("\",\"");
          sourceWriter.write(locales[i].getVariant());
          sourceWriter.write("\"),\n");
        }
        sourceWriter.write(_LOCALE_LIST_CODE_END);
        sourceWriter.close();
      }
    }
    catch (IOException e)
    {
      System.err.println(e);
      e.printStackTrace();
    }

    if (verbose)
    {
      System.out.println("Done writing files");
    }
  }