def is_empty(self):
leftmost_leaf_name, rightmost_leaf_name = (
self._file_tree.get_leftmost_leaf(),
self._file_tree.get_rightmost_leaf())
self.increment_rpc_count_by(n=2)
if FileUtil.is_dir_empty(
dir_name=leftmost_leaf_name) and FileUtil.is_dir_empty(
dir_name=rightmost_leaf_name):
return True
else:
return False
def is_empty(self):
if self.is_updated():
self.sys_log("Tree updated, need force rebuilding the tree.")
self._logger.info("Tree updated, need force rebuilding the tree.")
self.initialize_from_dir(dir_name=self.get_dir_name(), force=True)
leftmost_leaf_name, rightmost_leaf_name = (
self._file_tree.get_leftmost_leaf(),
self._file_tree.get_rightmost_leaf())
if FileUtil.is_dir_empty(
dir_name=leftmost_leaf_name) and FileUtil.is_dir_empty(
dir_name=rightmost_leaf_name):
return True
else:
return False
def resize_to_new_table(self, new_size_per_shard, new_dir_name):
self.increment_rpc_count_by(n=2)
assert not FileUtil.does_dir_exist(dir_name=new_dir_name) or FileUtil.is_dir_empty(dir_name=new_dir_name)
new_sptable_storage = ShardedProtoTableStorage(size_per_shard=new_size_per_shard)
new_sptable_storage.initialize_from_dir(dir_name=new_dir_name)
for shard in range(self.get_num_shards()):
related_proto_file = self._shard_to_file(shard=shard)
proto_table = ProtoTableStorage()
proto_table.initialize_from_file(file_name=related_proto_file)
new_sptable_storage.write(data=proto_table.read_all())
self.increment_rpc_count_by(n=proto_table.get_rpc_call_count_and_reset())
return new_sptable_storage
