import org.apache.hadoop.cli.util.CLITestData.TestCmd; //导入依赖的package包/类
@Override
public void startElement(String uri, 
		String localName, 
		String qName, 
		Attributes attributes) throws SAXException {
  if (qName.equals("test")) {
    td = new CLITestData();
  } else if (qName.equals("test-commands")) {
    testCommands = new ArrayList<TestCmd>();
  } else if (qName.equals("cleanup-commands")) {
    cleanupCommands = new ArrayList<TestCmd>();
  } else if (qName.equals("comparators")) {
    testComparators = new ArrayList<ComparatorData>();
  } else if (qName.equals("comparator")) {
    comparatorData = new ComparatorData();
  }
  charString = "";
}
 

import org.apache.hadoop.cli.util.CLITestData.TestCmd; //导入依赖的package包/类
public static int executeCommand(final TestCmd cmd, 
                                 final String namenode, final String jobtracker) 
throws Exception {
  switch(cmd.getType()) {
  case DFSADMIN:
    return CommandExecutor.executeDFSAdminCommand(cmd.getCmd(), namenode);
  case MRADMIN:
    return CommandExecutor.executeMRAdminCommand(cmd.getCmd(), jobtracker);
  case FS:
    return CommandExecutor.executeFSCommand(cmd.getCmd(), namenode);
  default:
    throw new Exception("Unknow type of Test command:"+ cmd.getType()); 
  }
}
 

import org.apache.hadoop.cli.util.CLITestData.TestCmd; //导入依赖的package包/类
@Override
public void endElement(String uri, 
		String localName, 
		String qName) throws SAXException {
  if (qName.equals("description")) {
    td.setTestDesc(charString);
  } else if (qName.equals("test-commands")) {
    td.setTestCommands(testCommands);
    testCommands = null;
  } else if (qName.equals("cleanup-commands")) {
    td.setCleanupCommands(cleanupCommands);
    cleanupCommands = null;
  } else if (qName.equals("command")) {
    if (testCommands != null) {
      testCommands.add(new TestCmd(charString, CommandType.FS));
    } else if (cleanupCommands != null) {
      cleanupCommands.add(new TestCmd(charString, CommandType.FS));
    }
  } else if (qName.equals("dfs-admin-command")) {
      if (testCommands != null) {
          testCommands.add(new TestCmd(charString,CommandType.DFSADMIN));
        } else if (cleanupCommands != null) {
          cleanupCommands.add(new TestCmd(charString, CommandType.DFSADMIN));
        } 
  } else if (qName.equals("mr-admin-command")) {
    if (testCommands != null) {
        testCommands.add(new TestCmd(charString,CommandType.MRADMIN));
      } else if (cleanupCommands != null) {
        cleanupCommands.add(new TestCmd(charString, CommandType.MRADMIN));
      } 
  } else if (qName.equals("comparators")) {
    td.setComparatorData(testComparators);
  } else if (qName.equals("comparator")) {
    testComparators.add(comparatorData);
  } else if (qName.equals("type")) {
    comparatorData.setComparatorType(charString);
  } else if (qName.equals("expected-output")) {
    comparatorData.setExpectedOutput(charString);
  } else if (qName.equals("test")) {
    testsFromConfigFile.add(td);
    td = null;
  } else if (qName.equals("mode")) {
    testMode = charString;
    if (!testMode.equals(TESTMODE_NOCOMPARE) &&
        !testMode.equals(TESTMODE_TEST)) {
      testMode = TESTMODE_TEST;
    }
  }
}
 

import org.apache.hadoop.cli.util.CLITestData.TestCmd; //导入依赖的package包/类
@Override
protected Result execute(TestCmd cmd) throws Exception {
  return CmdFactoryDFS.getCommandExecutor(cmd, namenode).executeCommand(cmd.getCmd());
}