Class: Librato::Sidekiq::Middleware

Inherits:
Object
  • Object
show all
Defined in:
lib/librato-sidekiq/middleware.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Middleware

Returns a new instance of Middleware.



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# File 'lib/librato-sidekiq/middleware.rb', line 12

def initialize(options = {})
  self.reconfigure
end

Class Method Details

.configure {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/librato-sidekiq/middleware.rb', line 16

def self.configure
  yield(self) if block_given?
  self.new # will call reconfigure
end

Instance Method Details

#call(worker_instance, msg, queue) ⇒ Object 



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# File 'lib/librato-sidekiq/middleware.rb', line 41

def call(worker_instance, msg, queue)
  unless self.enabled
    # puts "Gem not enabled"
    yield
    return
  end

  t = Time.now
  yield
  elapsed = (Time.now - t).to_f

  queue_in_whitelist = self.whitelist_queues.nil? || self.whitelist_queues.empty? || self.whitelist_queues.include?(queue.to_s)
  queue_in_blacklist = self.blacklist_queues.include?(queue.to_s)
  class_in_whitelist = self.whitelist_classes.nil? || self.whitelist_classes.empty? || self.whitelist_classes.include?(worker_instance.class.to_s)
  class_in_blacklist = self.blacklist_classes.include?(worker_instance.class.to_s)

  # puts "#{worker_instance} #{queue} qw:#{queue_in_whitelist} qb:#{queue_in_blacklist} cw:#{class_in_whitelist} cb:#{class_in_blacklist}"

  Librato.group 'sidekiq' do |sidekiq|
    stats = ::Sidekiq::Stats.new

    sidekiq.increment 'processed'

    [:enqueued, :failed].each do |m|
      sidekiq.measure m.to_s, stats.send(m)
    end

    return unless class_in_whitelist && !class_in_blacklist && queue_in_whitelist && !queue_in_blacklist
    # puts "doing Librato insert"

    sidekiq.group queue.to_s do |q|
      q.increment 'processed'
      q.timing 'time', elapsed
      q.measure 'enqueued', stats.queues[queue]

      # using something like User.delay.send_email invokes a class name with slashes
      # remove them in favor of underscores
      q.group msg["class"].underscore.gsub('/', '_') do |w|
        w.increment 'processed'
        w.timing 'time', elapsed
      end
    end
  end
end

#options ⇒ Object 



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# File 'lib/librato-sidekiq/middleware.rb', line 21

def options
  {
    :enabled => self.enabled,
    :whitelist_queues => self.whitelist_queues, 
    :blacklist_queues => self.blacklist_queues, 
    :whitelist_classes => self.whitelist_classes, 
    :blacklist_classes => self.blacklist_classes
  }
end

#reconfigure ⇒ Object 



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# File 'lib/librato-sidekiq/middleware.rb', line 31

def reconfigure
  # puts "Reconfiguring with: #{options}"
  ::Sidekiq.configure_server do |config|
    config.server_middleware do |chain|
      chain.remove self.class
      chain.add self.class, self.options
    end
  end
end