How to use

getAttributesProvider

method

in

org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker

private INodeAttributes getINodeAttrs(byte[][] pathByNameArr, int pathIdx,
  INode inode, int snapshotId) {
 INodeAttributes inodeAttrs = inode.getSnapshotINode(snapshotId);
 if (getAttributesProvider() != null) {
  String[] elements = new String[pathIdx + 1];
  /**
   * {@link INode#getPathComponents(String)} returns a null component
   * for the root only path "/". Assign an empty string if so.
   */
  if (pathByNameArr.length == 1 && pathByNameArr[0] == null) {
   elements[0] = "";
  } else {
   for (int i = 0; i < elements.length; i++) {
    elements[i] = DFSUtil.bytes2String(pathByNameArr[i]);
   }
  }
  inodeAttrs = getAttributesProvider().getAttributes(elements, inodeAttrs);
 }
 return inodeAttrs;
}

private INodeAttributes getINodeAttrs(byte[][] pathByNameArr, int pathIdx,
  INode inode, int snapshotId) {
 INodeAttributes inodeAttrs = inode.getSnapshotINode(snapshotId);
 if (getAttributesProvider() != null) {
  String[] elements = new String[pathIdx + 1];
  for (int i = 0; i < elements.length; i++) {
   elements[i] = DFSUtil.bytes2String(pathByNameArr[i]);
  }
  inodeAttrs = getAttributesProvider().getAttributes(elements, inodeAttrs);
 }
 return inodeAttrs;
}

private INodeAttributes getINodeAttrs(byte[][] pathByNameArr, int pathIdx,
  INode inode, int snapshotId) {
 INodeAttributes inodeAttrs = inode.getSnapshotINode(snapshotId);
 if (getAttributesProvider() != null) {
  String[] elements = new String[pathIdx + 1];
  for (int i = 0; i < elements.length; i++) {
   elements[i] = DFSUtil.bytes2String(pathByNameArr[i]);
  }
  inodeAttrs = getAttributesProvider().getAttributes(elements, inodeAttrs);
 }
 return inodeAttrs;
}