@Override
      public boolean accept(Path file) {
        return dirFilter.accept(file) && !file.getName().startsWith(".");
      }
Remove an entire region from the table directory via archiving the region's hfiles.
@param fs        {@link FileSystem} from which to remove the region
@param rootdir   {@link Path} to the root directory where hbase files are stored (for building
                 the archive path)
@param tableDir  {@link Path} to where the table is being stored (for building the archive
                 path)
@param regionDir {@link Path} to where a region is being stored (for building the archive path)
@return <tt>true</tt> if the region was successfully deleted. <tt>false</tt> if the filesystem
        operations could not complete.
@throws IOException if the request cannot be completed
hbase-server/src/main/java/org/apache/hadoop/hbase/backup/HFileArchiver.java