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.cli.fsadmin.command;
  
  import alluxio.conf.AlluxioConfiguration;
  import alluxio.exception.AlluxioException;
  
  import org.apache.commons.cli.CommandLine;
  
  import java.io.IOException;
  
  /**
   * CI Command to get state lock holder thread identifiers.
   */
  public class StateLockHoldersCommand extends AbstractFsAdminCommand {
  
    /**
     * @param context fsadmin command context
     * @param alluxioConf Alluxio configuration
     */
    public StateLockHoldersCommand(Context context, AlluxioConfiguration alluxioConf) {
      super(context);
    }
  
    @Override
    public String getCommandName() {
      return "statelock";
    }
  
    @Override
    public int run(CommandLine cl) throws AlluxioException, IOException {
      for (String stateLockHolder : mFsClient.getStateLockHolders()) {
        System.out.println(stateLockHolder);
      }
      return 0;
    }
  
    @Override
    public String getUsage() {
      return "statelock";
    }
  
    @Override
    public String getDescription() {
      return "statelock returns all waiters and holders of the state lock.";
    }
  }
  