Java CommandExecutor类代码示例

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag)
    throws IllegalArgumentException {
  if (getType() instanceof CLICommandCacheAdmin) {
    return new CacheAdminCmdExecutor(tag, new CacheAdmin(conf));
  }
  return super.getExecutor(tag);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag)
    throws IllegalArgumentException {
  if (getType() instanceof CLICommandCryptoAdmin) {
    return new CryptoAdminCmdExecutor(tag, new CryptoAdmin(conf));
  }
  return super.getExecutor(tag);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag, Configuration conf)
    throws IllegalArgumentException {
  if (getType() instanceof CLICommandDFSAdmin)
    return new FSCmdExecutor(tag, new DFSAdmin(conf));
  return super.getExecutor(tag, conf);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag, Configuration conf)
    throws IllegalArgumentException {
  if (getType() instanceof CLICommandCacheAdmin) {
    return new CacheAdminCmdExecutor(tag, new CacheAdmin(conf));
  }
  return super.getExecutor(tag, conf);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag, Configuration conf)
    throws IllegalArgumentException {
  if (getType() instanceof CLICommandCryptoAdmin) {
    return new CryptoAdminCmdExecutor(tag, new CryptoAdmin(conf));
  }
  return super.getExecutor(tag, conf);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
/**
 * Compare the actual output with the expected output
 * @param compdata
 * @return
 */
private boolean compareTestOutput(ComparatorData compdata) {
  // Compare the output based on the comparator
  String comparatorType = compdata.getComparatorType();
  Class<?> comparatorClass = null;
  
  // If testMode is "test", then run the command and compare the output
  // If testMode is "nocompare", then run the command and dump the output.
  // Do not compare
  
  boolean compareOutput = false;
  
  if (testMode.equals(TESTMODE_TEST)) {
    try {
  	// Initialize the comparator class and run its compare method
      comparatorClass = Class.forName("org.apache.hadoop.cli.util." + 
        comparatorType);
      ComparatorBase comp = (ComparatorBase) comparatorClass.newInstance();
      compareOutput = comp.compare(CommandExecutor.getLastCommandOutput(), 
        compdata.getExpectedOutput());
    } catch (Exception e) {
      LOG.info("Error in instantiating the comparator" + e);
    }
  }
  
  return compareOutput;
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag, Configuration conf)
    throws IllegalArgumentException {
  if (getType() instanceof CLICommandDFSAdmin) {
    return new FSCmdExecutor(tag, new DFSAdmin());
  }
  return super.getExecutor(tag, conf);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
public static CommandExecutor getCommandExecutor(CLITestData.TestCmd cmd,
                                          String tag)
  throws IllegalArgumentException {
  CommandExecutor executor;
  switch (cmd.getType()) {
    case DFSADMIN:
      executor = new CLICommands.FSCmdExecutor(tag, new DFSAdmin());
      break;
    default:
      executor = CmdFactory.getCommandExecutor(cmd, tag);
  }
  return executor;
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //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.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag) throws IllegalArgumentException {
  if (getType() instanceof CLICommandDFSAdmin)
    return new FSCmdExecutor(tag, new DFSAdmin());
  return super.getExecutor(tag);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
/**
 * Test dfsadmin -restoreFailedStorage command
 * @throws Exception
 */
@Test
public void testDfsAdminCmd() throws Exception {
  cluster = new MiniDFSCluster.Builder(config).
                               numDataNodes(2).
                               manageNameDfsDirs(false).build();
  cluster.waitActive();
  try {

    FSImage fsi = cluster.getNameNode().getFSImage();

    // it is started with dfs.namenode.name.dir.restore set to true (in SetUp())
    boolean restore = fsi.getStorage().getRestoreFailedStorage();
    LOG.info("Restore is " + restore);
    assertEquals(restore, true);

    // now run DFSAdmnin command

    String cmd = "-fs NAMENODE -restoreFailedStorage false";
    String namenode = config.get(DFSConfigKeys.FS_DEFAULT_NAME_KEY, "file:///");
    CommandExecutor executor =
        new CLITestCmdDFS(cmd, new CLICommandDFSAdmin()).getExecutor(namenode);

    executor.executeCommand(cmd);
    restore = fsi.getStorage().getRestoreFailedStorage();
    assertFalse("After set true call restore is " + restore, restore);

    // run one more time - to set it to true again
    cmd = "-fs NAMENODE -restoreFailedStorage true";
    executor.executeCommand(cmd);
    restore = fsi.getStorage().getRestoreFailedStorage();
    assertTrue("After set false call restore is " + restore, restore);
    
    // run one more time - no change in value
    cmd = "-fs NAMENODE -restoreFailedStorage check";
    CommandExecutor.Result cmdResult = executor.executeCommand(cmd);
    restore = fsi.getStorage().getRestoreFailedStorage();
    assertTrue("After check call restore is " + restore, restore);
    String commandOutput = cmdResult.getCommandOutput();
    commandOutput.trim();
    assertTrue(commandOutput.contains("restoreFailedStorage is set to true"));
    

  } finally {
    cluster.shutdown();
  }
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //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.CommandExecutor; //导入依赖的package包/类
@Override
public CommandExecutor getExecutor(String tag, Configuration conf) throws IllegalArgumentException {
  if (getType() instanceof CLICommandErasureCodingCli)
    return new ErasureCodingCliCmdExecutor(tag, new ECCli());
  return super.getExecutor(tag, conf);
}
 

import org.apache.hadoop.cli.util.CommandExecutor; //导入依赖的package包/类
/**
 * Test dfsadmin -restoreFailedStorage command
 * @throws Exception
 */
@Test
public void testDfsAdminCmd() throws Exception {
  cluster = new MiniDFSCluster.Builder(config).
                               numDataNodes(2).
                               manageNameDfsDirs(false).build();
  cluster.waitActive();
  try {

    FSImage fsi = cluster.getNameNode().getFSImage();

    // it is started with dfs.namenode.name.dir.restore set to true (in SetUp())
    boolean restore = fsi.getStorage().getRestoreFailedStorage();
    LOG.info("Restore is " + restore);
    assertEquals(restore, true);

    // now run DFSAdmnin command

    String cmd = "-fs NAMENODE -restoreFailedStorage false";
    String namenode = config.get(DFSConfigKeys.FS_DEFAULT_NAME_KEY, "file:///");
    CommandExecutor executor =
        new CLITestCmdDFS(cmd,
            new CLICommandDFSAdmin()).getExecutor(namenode, config);

    executor.executeCommand(cmd);
    restore = fsi.getStorage().getRestoreFailedStorage();
    assertFalse("After set true call restore is " + restore, restore);

    // run one more time - to set it to true again
    cmd = "-fs NAMENODE -restoreFailedStorage true";
    executor.executeCommand(cmd);
    restore = fsi.getStorage().getRestoreFailedStorage();
    assertTrue("After set false call restore is " + restore, restore);
    
    // run one more time - no change in value
    cmd = "-fs NAMENODE -restoreFailedStorage check";
    CommandExecutor.Result cmdResult = executor.executeCommand(cmd);
    restore = fsi.getStorage().getRestoreFailedStorage();
    assertTrue("After check call restore is " + restore, restore);
    String commandOutput = cmdResult.getCommandOutput();
    commandOutput.trim();
    assertTrue(commandOutput.contains("restoreFailedStorage is set to true"));
    

  } finally {
    cluster.shutdown();
  }
}