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.cosn;
  
  import alluxio.AlluxioURI;
  import alluxio.underfs.UnderFileSystem;
  import alluxio.underfs.UnderFileSystemConfiguration;
  import alluxio.underfs.hdfs.HdfsUnderFileSystem;
  
  import org.apache.hadoop.conf.Configuration;
  
  import javax.annotation.concurrent.ThreadSafe;
  
  /**
   * COSN {@link UnderFileSystem} implementation.
   */
  @ThreadSafe
  public class CosnUnderFileSystem extends HdfsUnderFileSystem {
  
    /**
     * Factory method to constructs a new Cosn {@link UnderFileSystem} instance.
     *
     * @param ufsUri the {@link AlluxioURI} for this UFS
     * @param conf the configuration for Hadoop
     * @return a new Cosn {@link UnderFileSystem} instance
     */
    public static CosnUnderFileSystem createInstance(AlluxioURI ufsUri,
        UnderFileSystemConfiguration conf) {
      Configuration hdfsConf = createConfiguration(conf);
      return new CosnUnderFileSystem(ufsUri, conf, hdfsConf);
    }
  
    /**
     * Constructs a new COSN {@link UnderFileSystem}.
     *
     * @param ufsUri the {@link AlluxioURI} for this UFS
     * @param conf the configuration for this UFS
     * @param hdfsConf the configuration for COSN
     */
    public CosnUnderFileSystem(AlluxioURI ufsUri, UnderFileSystemConfiguration conf,
        Configuration hdfsConf) {
      super(ufsUri, conf, hdfsConf);
    }
  
    @Override
    public String getUnderFSType() {
      return "cosn";
    }
  }
  