File: const.rb

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ruby-jaeger-client 1.3.0-1
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# frozen_string_literal: true

module Jaeger
  module Samplers
    # Const sampler
    #
    # A sampler that always makes the same decision for new traces depending
    # on the initialization value. Use `Jaeger::Samplers::Const.new(true)`
    # to mark all new traces as sampled.
    class Const
      def initialize(decision)
        @decision = decision
        @tags = {
          'sampler.type' => 'const',
          'sampler.param' => @decision ? 1 : 0
        }
      end

      def sample(*)
        [@decision, @tags]
      end
    end
  end
end