import org.apache.hadoop.cli.TestCLI; //导入依赖的package包/类
private static String[] getCommandAsArgs(final String cmd, final String masterKey,
                                       final String master) {
  StringTokenizer tokenizer = new StringTokenizer(cmd, " ");
  String[] args = new String[tokenizer.countTokens()];
  
  int i = 0;
  while (tokenizer.hasMoreTokens()) {
    args[i] = tokenizer.nextToken();

    args[i] = args[i].replaceAll(masterKey, master);
    args[i] = args[i].replaceAll("CLITEST_DATA", 
      new File(TestCLI.TEST_CACHE_DATA_DIR).
      toURI().toString().replace(' ', '+'));
    args[i] = args[i].replaceAll("USERNAME", System.getProperty("user.name"));

    i++;
  }
  
  return args;
}