public static void main()

in opennlp-tools/src/main/java/opennlp/tools/cmdline/CLI.java [220:277]
48 lines of code
14 McCabe index (conditional complexity)

  public static void main(String[] args) {

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

    final long startTime = System.currentTimeMillis();
    String[] toolArguments = new String[args.length - 1];
    System.arraycopy(args, 1, toolArguments, 0, toolArguments.length);

    String toolName = args[0];

    //check for format
    String formatName = StreamFactoryRegistry.DEFAULT_FORMAT;
    int idx = toolName.indexOf(".");
    if (-1 < idx) {
      formatName = toolName.substring(idx + 1);
      toolName = toolName.substring(0, idx);
    }
    CmdLineTool tool = toolLookupMap.get(toolName);

    try {
      if (null == tool) {
        throw new TerminateToolException(1, "Tool " + toolName + " is not found.");
      }

      if ((0 == toolArguments.length && tool.hasParams()) ||
          0 < toolArguments.length && "help".equals(toolArguments[0])) {
        if (tool instanceof TypedCmdLineTool) {
          logger.info(((TypedCmdLineTool<?,?>) tool).getHelp(formatName));
        } else if (tool instanceof BasicCmdLineTool) {
          logger.info(tool.getHelp());
        }

        System.exit(0);
      }

      if (tool instanceof TypedCmdLineTool) {
        ((TypedCmdLineTool<?,?>) tool).run(formatName, toolArguments);
      } else if (tool instanceof BasicCmdLineTool) {
        if (-1 == idx) {
          ((BasicCmdLineTool) tool).run(toolArguments);
        } else {
          throw new TerminateToolException(1, "Tool " + toolName + " does not support formats.");
        }
      } else {
        throw new TerminateToolException(1, "Tool " + toolName + " is not supported.");
      }
    }
    catch (TerminateToolException e) {
      logger.error(e.getLocalizedMessage(), e);
      System.exit(e.getCode());
    }

    final long endTime = System.currentTimeMillis();
    logger.info(String.format("Execution time: %.3f seconds\n", (endTime - startTime) / 1000.0));
  }