lib/mongo/monitoring/server_description_changed_log_subscriber.rb
# frozen_string_literal: true
# rubocop:todo all
# Copyright (C) 2016-2020 MongoDB Inc.
#
# 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.
module Mongo
class Monitoring
# Subscribes to Server Description Changed events and logs them.
#
# @since 2.4.0
class ServerDescriptionChangedLogSubscriber < SDAMLogSubscriber
private
def log_event(event)
log_debug(
"Server description for #{event.address} changed from " +
"'#{event.previous_description.server_type}' to '#{event.new_description.server_type}'#{awaited_indicator(event)}."
)
end
def awaited_indicator(event)
if event.awaited?
' [awaited]'
else
''
end
end
end
end
end