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.worker.block.meta;
  
  import alluxio.proto.dataserver.Protocol;
  
  /**
   * This class represents the metadata of a block that is in UFS. This class is immutable.
   */
  public final class UnderFileSystemBlockMeta {
    private final long mSessionId;
    private final long mBlockId;
    private final String mUnderFileSystemPath;
    /** The offset in bytes of the first byte of the block in its corresponding UFS file. */
    private final long mOffset;
    /** The block size in bytes. */
    private final long mBlockSize;
    /** The id of the mount point. */
    private final long mMountId;
    /** Do not cache the block to the local Alluxio worker if set. */
    private final boolean mNoCache;
    private final String mUser;
  
    /**
     * Creates an instance of {@link UnderFileSystemBlockMeta}.
     *
     * @param sessionId the session ID
     * @param blockId the block ID
     * @param options the {@link Protocol.OpenUfsBlUfsInputStreamCacheTestockOptions}
     */
    public UnderFileSystemBlockMeta(long sessionId, long blockId,
        Protocol.OpenUfsBlockOptions options) {
      mSessionId = sessionId;
      mBlockId = blockId;
      mUnderFileSystemPath = options.getUfsPath();
      mOffset = options.getOffsetInFile();
      mBlockSize = options.getBlockSize();
      mMountId = options.getMountId();
      mNoCache = options.getNoCache();
      mUser = options.getUser();
    }
  
    /**
     * @return the session ID
     */
    public long getSessionId() {
      return mSessionId;
    }
  
    /**
     * @return the block ID
     */
    public long getBlockId() {
      return mBlockId;
    }
  
    /**
     * @return the UFS path
     */
    public String getUnderFileSystemPath() {
      return mUnderFileSystemPath;
    }
  
    /**
     * @return the offset of the block in the UFS file
     */
    public long getOffset() {
      return mOffset;
    }
  
    /**
     * @return the block size in bytes
     */
    public long getBlockSize() {
      return mBlockSize;
    }
  
    /**
     * @return the id of the mount of this file is mapped to
     */
    public long getMountId() {
      return mMountId;
    }
  
    /**
     * @return true if mNoCache is set
     */
    public boolean isNoCache() {
      return mNoCache;
    }
  
    /**
     * @return the user
     */
    public String getUser() {
      return mUser;
    }
  }
  