import org.apache.hadoop.cli.CLITestHelper; //导入依赖的package包/类
protected 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(CLITestHelper.TEST_CACHE_DATA_DIR).
      toURI().toString().replace(' ', '+'));
    args[i] = args[i].replaceAll("USERNAME", System.getProperty("user.name"));

    i++;
  }
  
  return args;
}
 

import org.apache.hadoop.cli.CLITestHelper; //导入依赖的package包/类
protected String[] getCommandAsArgs(final String cmd, final String masterKey,
                                       final String master) {
  String regex = "\'([^\']*)\'|\"([^\"]*)\"|(\\S+)";
  Matcher matcher = Pattern.compile(regex).matcher(cmd);

  ArrayList<String> args = new ArrayList<String>();
  String arg = null;

  while (matcher.find()) {
    if (matcher.group(1) != null) {
      arg = matcher.group(1);
    } else if (matcher.group(2) != null) {
      arg = matcher.group(2);
    } else {
      arg = matcher.group(3);
    }

    arg = arg.replaceAll(masterKey, master);
    arg = arg.replaceAll("CLITEST_DATA",
       new File(CLITestHelper.TEST_CACHE_DATA_DIR).
       toURI().toString().replace(' ', '+'));
    arg = arg.replaceAll("USERNAME", System.getProperty("user.name"));

    args.add(arg);
   }

  return args.toArray(new String[0]);
}