class Riffer::Config::Metrics

Metrics-related global configuration, independent of config.tracing so a host can run one signal without the other.

Attributes

The backend riffer routes measurements through; defaults to nil, a no-op. Riffer auto-detects no backend; assigning one is opt-in.

enabled [R]

Whether riffer records OTEL metric instruments; defaults to true, a no-op until a host wires an OTEL metrics SDK.

Public Class Methods

new ()

Source

# File lib/riffer/config.rb, line 122
def initialize
  @enabled = true
  @backend = nil
end

Public Instance Methods

backend= (value)

Source

# File lib/riffer/config.rb, line 141
def backend=(value)
  unless value.nil? || value.respond_to?(:record_histogram)
    raise Riffer::ArgumentError, "metrics backend must respond to #record_histogram"
  end
  @backend = value
  Riffer::Metrics.reset!
end

Sets the metrics backend riffer routes measurements through. Raises Riffer::ArgumentError unless the value is nil or responds to record_histogram.

enabled= (value)

Source

# File lib/riffer/config.rb, line 132
def enabled=(value)
  @enabled = Riffer::Helpers::Boolean.coerce(value, attribute: "enabled")
end

Sets the enabled flag, coercing boolean-ish values so an env-var +“false”+ (truthy in Ruby) doesn’t silently keep metrics on. Raises Riffer::ArgumentError on an unrecognized value.