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# -*- coding: utf-8 -*-
# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from synapse.handlers.state_deltas import StateDeltasHandler
logger = logging.getLogger(__name__)
class StatsHandler(StateDeltasHandler):
"""Handles keeping the *_stats tables updated with a simple time-series of
information about the users, rooms and media on the server, such that admins
have some idea of who is consuming their resources.
Heavily derived from UserDirectoryHandler
"""
def __init__(self, hs):
super(StatsHandler, self).__init__(hs)
self.hs = hs
self.store = hs.get_datastore()
self.state = hs.get_state_handler()
self.server_name = hs.hostname
self.clock = hs.get_clock()
self.notifier = hs.get_notifier()
self.is_mine_id = hs.is_mine_id
self.stats_bucket_size = hs.config.stats_bucket_size
# The current position in the current_state_delta stream
self.pos = None
if hs.config.stats_enabled:
self.notifier.add_replication_callback(self.notify_new_event)
# We kick this off so that we don't have to wait for a change before
# we start populating stats
self.clock.call_later(0, self.notify_new_event)
def notify_new_event(self):
"""Called when there may be more deltas to process
"""
pass
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