import org.apache.hadoop.cli.util.CLICommand; //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<CLICommand>();
  } else if (qName.equals("cleanup-commands")) {
    cleanupCommands = new ArrayList<CLICommand>();
  } else if (qName.equals("comparators")) {
    testComparators = new ArrayList<ComparatorData>();
  } else if (qName.equals("comparator")) {
    comparatorData = new ComparatorData();
  }
  charString = "";
}
 

import org.apache.hadoop.cli.util.CLICommand; //导入依赖的package包/类
@Override
protected CommandExecutor.Result execute(CLICommand cmd) throws Exception {
  return cmd.getExecutor("", conf).executeCommand(cmd.getCmd());

}
 

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

import org.apache.hadoop.cli.util.CLICommand; //导入依赖的package包/类
@Override
protected Result execute(CLICommand cmd) throws Exception {
  return cmd.getExecutor("").executeCommand(cmd.getCmd());
}
 

import org.apache.hadoop.cli.util.CLICommand; //导入依赖的package包/类
@Override
protected CommandExecutor.Result execute(CLICommand cmd) throws Exception {
  return cmd.getExecutor("").executeCommand(cmd.getCmd());

}
 

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

import org.apache.hadoop.cli.util.CLICommand; //导入依赖的package包/类
@Override
protected Result execute(CLICommand cmd) throws Exception {
  return cmd.getExecutor("", conf).executeCommand(cmd.getCmd());
}
 

import org.apache.hadoop.cli.util.CLICommand; //导入依赖的package包/类
/**
 * this method has to be overridden by an ancestor
 */
protected CommandExecutor.Result execute(CLICommand cmd) throws Exception {
  throw new Exception("Unknown type of test command:"+ cmd.getType());
}