Class: MetricsProcessor

Inherits:
Closeable show all
Defined in:
lib/ff/ruby/server/sdk/api/metrics_processor.rb

Instance Method Summary collapse

Instance Method Details

#close ⇒ Object 


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# File 'lib/ff/ruby/server/sdk/api/metrics_processor.rb', line 74

def close
  stop
  @config.logger.debug "Closing metrics processor"
end

#init(connector, config, callback) ⇒ Object 


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# File 'lib/ff/ruby/server/sdk/api/metrics_processor.rb', line 12

def init(connector, config, callback)

  unless connector.kind_of?(Connector)
    raise "The 'connector' must be of '" + Connector.to_s + "' data type"
  end

  unless callback.kind_of?(MetricsCallback)
    raise "The 'callback' must be of '" + MetricsCallback.to_s + "' data type"
  end

  unless config.kind_of?(Config)
    raise "The 'config' must be of '" + Config.to_s + "' data type"
  end

  @config = config
  @callback = callback
  @connector = connector

  @sdk_type = "SDK_TYPE"
  @target_attribute = "target"
  @global_target_identifier = "__global__cf_target" # <--- This target identifier is used to aggregate and send data for all
  #                                             targets as a summary
  @ready = false
  @jar_version = Ff::Ruby::Server::Sdk::VERSION
  @server = "server"
  @sdk_version = "SDK_VERSION"
  @sdk_language = "SDK_LANGUAGE"
  @global_target_name = "Global Target"
  @feature_name_attribute = "featureName"
  @variation_identifier_attribute = "variationIdentifier"

  # Evaluation and target metrics
  @metric_maps_mutex = Mutex.new
  @evaluation_metrics = {}
  @target_metrics = {}

  # Keep track of targets that have already been sent to avoid sending them again. We track a max 500K targets
  # to prevent unbounded growth.
  @seen_targets_mutex = Mutex.new
  @seen_targets = Set.new
  @max_seen_targets = 500000
  @seen_targets_full = false

  # Mutex to protect aggregation and sending metrics at the end of an interval
  @send_data_mutex = Mutex.new

  @callback.on_metrics_ready
end

#register_evaluation(target, feature_name, variation_identifier) ⇒ Object 


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# File 'lib/ff/ruby/server/sdk/api/metrics_processor.rb', line 79

def register_evaluation(target, feature_name, variation_identifier)
  register_evaluation_metric(feature_name, variation_identifier)
  if target
    register_target_metric(target)
  end
end

#start ⇒ Object 


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# File 'lib/ff/ruby/server/sdk/api/metrics_processor.rb', line 61

def start
  @config.logger.debug "Starting metrics processor with request interval: #{@config.frequency}"
  if @running
    @config.logger.warn "Metrics processor is already running."
  else
    start_async
  end
end

#stop ⇒ Object 


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# File 'lib/ff/ruby/server/sdk/api/metrics_processor.rb', line 69

def stop
  @config.logger.debug "Stopping metrics processor"
  stop_async
end