Examples of org.apache.hadoop.hdfs.server.namenode.snapshot.DirectoryWithSnapshotFeature

Package org.apache.hadoop.hdfs.server.namenode.snapshot

Examples of org.apache.hadoop.hdfs.server.namenode.snapshot.DirectoryWithSnapshotFeature

org.apache.hadoop.hdfs.server.namenode.snapshot.DirectoryWithSnapshotFeature
Feature for directory with snapshot-related information.

    return sf == null ? this : sf.getDiffs().getSnapshotINode(snapshotId, this);
  }
  
  @Override
  public String toDetailString() {
    DirectoryWithSnapshotFeature sf = this.getDirectoryWithSnapshotFeature();
    return super.toDetailString() + (sf == null ? "" : ", " + sf.getDiffs()); 
  }

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      withCount.removeReference(oldChild.asReference());
    }
    children.set(i, newChild);
    
    // replace the instance in the created list of the diff list
    DirectoryWithSnapshotFeature sf = this.getDirectoryWithSnapshotFeature();
    if (sf != null) {
      sf.getDiffs().replaceChild(ListType.CREATED, oldChild, newChild);
    }
    
    // update the inodeMap
    if (inodeMap != null) {
      inodeMap.put(newChild);

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  public INodeDirectory recordModification(int latestSnapshotId) 
      throws QuotaExceededException {
    if (isInLatestSnapshot(latestSnapshotId)
        && !shouldRecordInSrcSnapshot(latestSnapshotId)) {
      // add snapshot feature if necessary
      DirectoryWithSnapshotFeature sf = getDirectoryWithSnapshotFeature();
      if (sf == null) {
        sf = addSnapshotFeature(null);
      }
      // record self in the diff list if necessary
      sf.getDiffs().saveSelf2Snapshot(latestSnapshotId, this, null);
    }
    return this;
  }

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    if (latestSnapshotId == Snapshot.CURRENT_STATE_ID) {
      return child;
    }
    
    // add snapshot feature if necessary
    DirectoryWithSnapshotFeature sf = getDirectoryWithSnapshotFeature();
    if (sf == null) {
      sf = this.addSnapshotFeature(null);
    }
    return sf.saveChild2Snapshot(this, child, latestSnapshotId, snapshotCopy);
  }

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   *          from the corresponding snapshot; otherwise, get the result from
   *          the current directory.
   * @return the child inode.
   */
  public INode getChild(byte[] name, int snapshotId) {
    DirectoryWithSnapshotFeature sf;
    if (snapshotId == Snapshot.CURRENT_STATE_ID || 
        (sf = getDirectoryWithSnapshotFeature()) == null) {
      ReadOnlyList<INode> c = getCurrentChildrenList();
      final int i = ReadOnlyList.Util.binarySearch(c, name);
      return i < 0 ? null : c.get(i);
    }
    
    return sf.getChild(this, name, snapshotId);
  }

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   * @return the current children list if the specified snapshot is null;
   *         otherwise, return the children list corresponding to the snapshot.
   *         Note that the returned list is never null.
   */
  public ReadOnlyList<INode> getChildrenList(final int snapshotId) {
    DirectoryWithSnapshotFeature sf;
    if (snapshotId == Snapshot.CURRENT_STATE_ID
        || (sf = this.getDirectoryWithSnapshotFeature()) == null) {
      return getCurrentChildrenList();
    }
    return sf.getChildrenList(this, snapshotId);
  }

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   */
  public boolean removeChild(INode child, int latestSnapshotId)
      throws QuotaExceededException {
    if (isInLatestSnapshot(latestSnapshotId)) {
      // create snapshot feature if necessary
      DirectoryWithSnapshotFeature sf = this.getDirectoryWithSnapshotFeature();
      if (sf == null) {
        sf = this.addSnapshotFeature(null);
      }
      return sf.removeChild(this, child, latestSnapshotId);
    }
    return removeChild(child);
  }

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      return false;
    }


    if (isInLatestSnapshot(latestSnapshotId)) {
      // create snapshot feature if necessary
      DirectoryWithSnapshotFeature sf = this.getDirectoryWithSnapshotFeature();
      if (sf == null) {
        sf = this.addSnapshotFeature(null);
      }
      return sf.addChild(this, node, setModTime, latestSnapshotId);
    }
    addChild(node, low);
    if (setModTime) {
      // update modification time of the parent directory
      updateModificationTime(node.getModificationTime(), latestSnapshotId);

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  }


  @Override
  public Quota.Counts computeQuotaUsage(Quota.Counts counts, boolean useCache,
      int lastSnapshotId) {
    final DirectoryWithSnapshotFeature sf = getDirectoryWithSnapshotFeature();
    
    // we are computing the quota usage for a specific snapshot here, i.e., the
    // computation only includes files/directories that exist at the time of the
    // given snapshot
    if (sf != null && lastSnapshotId != Snapshot.CURRENT_STATE_ID

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  /** Add quota usage for this inode excluding children. */
  public Quota.Counts computeQuotaUsage4CurrentDirectory(Quota.Counts counts) {
    counts.add(Quota.NAMESPACE, 1);
    // include the diff list
    DirectoryWithSnapshotFeature sf = getDirectoryWithSnapshotFeature();
    if (sf != null) {
      sf.computeQuotaUsage4CurrentDirectory(counts);
    }
    return counts;
  }

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org.apache.hadoop.hdfs.server.namenode.INode

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org.apache.hadoop.hdfs.server.namenode.INodeReference$WithName

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