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.master.file;
  
  import alluxio.heartbeat.HeartbeatExecutor;
  
  import javax.annotation.concurrent.NotThreadSafe;
  
  /**
   * Under file system periodic clean.
   */
  @NotThreadSafe
  final class UfsCleaner implements HeartbeatExecutor {
    private final FileSystemMaster mFileSystemMaster;
  
    /**
     * Constructs a new {@link UfsCleaner}.
     */
    public UfsCleaner(FileSystemMaster fileSystemMaster) {
      mFileSystemMaster = fileSystemMaster;
    }
  
    @Override
    public void heartbeat(long timeLimitMs) {
      mFileSystemMaster.cleanupUfs();
    }
  
    @Override
    public void close() {}
  }
  