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Size: 1.67 KB
Versions: 63
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Stored size: 1.67 KB
Contents
# Copyright 2017 Google Inc. All rights reserved.
#
# 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 Monitoring
# Base class for the monitoring registry.
class BaseMonitoringRegistry
def counter(_name, _desc)
_undefined
end
end
# Prometheus implementation of the monitoring registry, that uses the default
# registry in the official Prometheus client library.
class PrometheusMonitoringRegistry < BaseMonitoringRegistry
def self.name
'prometheus'
end
def initialize
require 'prometheus/client'
@registry = Prometheus::Client.registry
end
# Exception-driven behavior to avoid synchronization errors.
def counter(name, desc)
return @registry.counter(name, desc)
rescue Prometheus::Client::Registry::AlreadyRegisteredError
return @registry.get(name)
end
end
# Factory that is used to create a monitoring registry based on
# the monitoring solution name.
class MonitoringRegistryFactory
@known_registry_types = {
PrometheusMonitoringRegistry.name =>
PrometheusMonitoringRegistry
}
def self.create(name)
(@known_registry_types[name] || BaseMonitoringRegistry).new
end
end
end
Version data entries
63 entries across 63 versions & 1 rubygems