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.underfs.hdfs;
  
  import alluxio.AlluxioURI;
  import alluxio.SyncInfo;
  
  /**
   * The noop HDFS Active Sync provider.
   */
  public class NoopHdfsActiveSyncProvider implements HdfsActiveSyncProvider {
    @Override
    public SyncInfo getActivitySyncInfo() {
      return SyncInfo.emptyInfo();
    }
  
    @Override
    public boolean startPolling(long txId) {
      return false;
    }
  
    @Override
    public boolean stopPolling() {
      return false;
    }
  
    @Override
    public void startSync(AlluxioURI ufsUri) {
    }
  
    @Override
    public void stopSync(AlluxioURI ufsUri) {
    }
  }
  