content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.bigtop.itest.hadoop.hcfs;
  
  import java.io.File;
  import java.util.StringTokenizer;
  
  import org.apache.hadoop.fs.FsShell;
  import org.apache.hadoop.cli.CLITestHelper;
  import org.apache.hadoop.cli.util.CommandExecutor;
  import org.apache.hadoop.util.ToolRunner;
  
  public class FSCmdExecutor extends CommandExecutor {
    protected String namenode = null;
    protected FsShell shell = null;
  
    public FSCmdExecutor(String namenode, FsShell shell) {
      this.namenode = namenode;
      this.shell = shell;
    }
  
    /**
     * Execute given hadoop FsShell command.
     */
    protected void execute(final String cmd) throws Exception{
      String[] args = getCommandAsArgs(cmd, "NAMENODE", this.namenode);
      ToolRunner.run(shell, args);
    }
  
    /**
     * Prapare given FsShell command for execution by ToolRunner.
     * This method also expands all variables used in the command.
     */
    @Override
    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();
        // HCFS fs.default.name Hack (see TestCLI.java)
        args[i] = args[i].replaceAll("NAMENODETEST_DIR_ABSOLUTE", TestCLI.NAMENODE_TESTDIR_HACK);
        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("USER_NAME", System.getProperty("user.name"));
        args[i] = args[i].replaceAll("TEST_DIR_ABSOLUTE", TestCLI.TEST_DIR_ABSOLUTE);
        args[i] = args[i].replaceAll("HCFS_SCHEME", TestCLI.HCFS_SCHEME);
        args[i] = args[i].replaceAll("HCFS_DIRSIZE", TestCLI.HCFS_DIRSIZE);
        args[i] = args[i].replaceAll("HCFS_NNMATCH", TestCLI.HCFS_NNMATCH);
  
        i++;
      }
      return args;
    }
  }
  