content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.shell;
  
  import alluxio.util.ShellUtils;
  
  import javax.annotation.concurrent.NotThreadSafe;
  
  /**
   * Object representation of a remote shell command by SSH.
   */
  @NotThreadSafe
  public class SshCommand extends ShellCommand {
    private final String mHostName;
  
    /**
     * Creates a SshCommand instance from the remote hostname and command.
     *
     * @param hostname the remote target hostname
     * @param execString the command to execute
     */
    public SshCommand(String hostname, String[] execString) {
      super(new String[]{"bash", "-c",
              String.format("ssh %s %s %s", ShellUtils.COMMON_SSH_OPTS, hostname,
                      String.join(" ", execString))});
      mHostName = hostname;
    }
  
    /**
     * Returns the remote target hostname.
     *
     * @return target hostname
     */
    public String getHostName() {
      return mHostName;
    }
  }
  
  