code: HdfsFileStatus getHdfsFileInfo(String src) {
      String srcs = normalizePath(src);
      byte[][] components = INodeDirectory.getPathComponents(srcs);
      readLock();
      try {
        INode targetNode = rootDir.getNode(components);
        if (targetNode == null) {
          return null;
        }
        else {
          return createHdfsFileStatus(HdfsFileStatus.EMPTY_NAME, targetNode);
        }
      } finally {
        readUnlock();
      }
    }
docs: Get the file info for a specific file.
  @param src The string representation of the path to the file
  @return object containing information regarding the file
  or null if file not found