List<Path> getNamespaceRootPaths(String namespace) {
    return Lists.newArrayList(pathHelper.getTmpNsDir(namespace), pathHelper.getDataNsDir(namespace),
      pathHelper.getMobDataNsDir(namespace), pathHelper.getArchiveNsDir(namespace));
  }
return paths that user will namespace permission will visit
@param namespace the namespace
@return the path list
hbase-server/src/main/java/org/apache/hadoop/hbase/security/access/SnapshotScannerHDFSAclHelper.java