class InfluxDB::Rails::Middleware::SimpleSubscriber

Subscriber acts as base class for different *Subscriber classes, which are intended as ActiveSupport::Notifications.subscribe consumers.

Attributes

series_name[R]

Public Class Methods

new(configuration, series_name) click to toggle source
Calls superclass method
# File lib/influxdb/rails/middleware/simple_subscriber.rb, line 12
def initialize(configuration, series_name)
  super(configuration)
  @series_name = series_name
end

Public Instance Methods

call(_name, started, finished, _unique_id, payload) click to toggle source
# File lib/influxdb/rails/middleware/simple_subscriber.rb, line 17
def call(_name, started, finished, _unique_id, payload)
  return unless enabled?

  begin
    InfluxDB::Rails.client.write_point series_name,
                                       values:    values(started, finished, payload),
                                       tags:      tags(payload),
                                       timestamp: timestamp(finished.utc)
  rescue StandardError => e
    log :error, "[InfluxDB::Rails] Unable to write points: #{e.message}"
  end
end

Private Instance Methods

enabled?() click to toggle source
Calls superclass method
# File lib/influxdb/rails/middleware/simple_subscriber.rb, line 43
def enabled?
  super && series_name.present?
end
timestamp(finished) click to toggle source
# File lib/influxdb/rails/middleware/simple_subscriber.rb, line 39
def timestamp(finished)
  InfluxDB.convert_timestamp(finished.utc, configuration.time_precision)
end
values(started, finished, _payload) click to toggle source
# File lib/influxdb/rails/middleware/simple_subscriber.rb, line 32
def values(started, finished, _payload)
  result = { value: ((finished - started) * 1000).ceil }
  result.merge(InfluxDB::Rails.current.values).reject do |_, value|
    value.nil? || value == ""
  end
end