public static void main()

in jdbc/src/main/java/site/ycsb/db/JdbcDBCreateTable.java [96:216]
98 lines of code
21 McCabe index (conditional complexity)

  public static void main(String[] args) {

    if (args.length == 0) {
      usageMessage();
      System.exit(0);
    }

    String tablename = null;
    int fieldcount = -1;
    Properties props = new Properties();
    Properties fileprops = new Properties();

    // parse arguments
    int argindex = 0;
    while (args[argindex].startsWith("-")) {
      if (args[argindex].compareTo("-P") == 0) {
        argindex++;
        if (argindex >= args.length) {
          usageMessage();
          System.exit(0);
        }
        String propfile = args[argindex];
        argindex++;

        Properties myfileprops = new Properties();
        try {
          myfileprops.load(new FileInputStream(propfile));
        } catch (IOException e) {
          System.out.println(e.getMessage());
          System.exit(0);
        }

        // Issue #5 - remove call to stringPropertyNames to make compilable
        // under Java 1.5
        for (Enumeration<?> e = myfileprops.propertyNames(); e.hasMoreElements();) {
          String prop = (String) e.nextElement();

          fileprops.setProperty(prop, myfileprops.getProperty(prop));
        }

      } else if (args[argindex].compareTo("-p") == 0) {
        argindex++;
        if (argindex >= args.length) {
          usageMessage();
          System.exit(0);
        }
        int eq = args[argindex].indexOf('=');
        if (eq < 0) {
          usageMessage();
          System.exit(0);
        }

        String name = args[argindex].substring(0, eq);
        String value = args[argindex].substring(eq + 1);
        props.put(name, value);
        argindex++;
      } else if (args[argindex].compareTo("-n") == 0) {
        argindex++;
        if (argindex >= args.length) {
          usageMessage();
          System.exit(0);
        }
        tablename = args[argindex++];
      } else if (args[argindex].compareTo("-f") == 0) {
        argindex++;
        if (argindex >= args.length) {
          usageMessage();
          System.exit(0);
        }
        try {
          fieldcount = Integer.parseInt(args[argindex++]);
        } catch (NumberFormatException e) {
          System.err.println("Invalid number for field count");
          usageMessage();
          System.exit(1);
        }
      } else {
        System.out.println("Unknown option " + args[argindex]);
        usageMessage();
        System.exit(0);
      }

      if (argindex >= args.length) {
        break;
      }
    }

    if (argindex != args.length) {
      usageMessage();
      System.exit(0);
    }

    // overwrite file properties with properties from the command line

    // Issue #5 - remove call to stringPropertyNames to make compilable under
    // Java 1.5
    for (Enumeration<?> e = props.propertyNames(); e.hasMoreElements();) {
      String prop = (String) e.nextElement();

      fileprops.setProperty(prop, props.getProperty(prop));
    }

    props = fileprops;

    if (tablename == null) {
      System.err.println("table name missing.");
      usageMessage();
      System.exit(1);
    }

    if (fieldcount > 0) {
      props.setProperty(JdbcDBClient.FIELD_COUNT_PROPERTY, String.valueOf(fieldcount));
    }

    try {
      createTable(props, tablename);
    } catch (SQLException e) {
      System.err.println("Error in creating table. " + e);
      System.exit(1);
    }
  }