Module: Metrician::Middleware

Defined in:
lib/metrician/middleware.rb,
lib/metrician/middleware/request_timing.rb,
lib/metrician/middleware/application_timing.rb

Defined Under Namespace

Classes: ApplicationTiming, RequestTiming

Constant Summary collapse

ENV_REQUEST_TOTAL_TIME = 
"METRICIAN_REQUEST_TOTAL_TIME".freeze
ENV_QUEUE_START_KEYS = 
["X-Request-Start".freeze,
"X-Queue-Start".freeze,
"X-REQUEST-START".freeze,
"X_REQUEST_START".freeze,
"HTTP_X_QUEUE_START".freeze]
ENV_CONTROLLER_PATH = 
"action_controller.instance".freeze
ENV_REQUEST_PATH = 
"REQUEST_PATH".freeze
HEADER_CONTENT_LENGTH = 
"Content-Length".freeze
ASSET_CONTROLLER_ROUTE = 
"assets".freeze
UNKNOWN_CONTROLLER_ROUTE = 
"unknown_endpoint".freeze
UNKNOWN_ACTION = 
"unknown_action".freeze
ASSET_PATH_MATCHER = 
%r|\A/{0,2}/assets|.freeze
APDEX_SATISFIED_METRIC = 
"web.apdex.satisfied".freeze
APDEX_TOLERATED_METRIC = 
"web.apdex.tolerated".freeze
APDEX_FRUSTRATED_METRIC = 
"web.apdex.frustrated".freeze

Class Method Summary collapse

Class Method Details

.apdex? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 60

def self.apdex?
  @apdex ||= configuration[:apdex][:enabled]
end

.configuration ⇒ Object 



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# File 'lib/metrician/middleware.rb', line 20

def self.configuration
  @configuration ||= Metrician.configuration[:request_timing]
end

.enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 24

def self.enabled?
  @enabled ||= configuration[:enabled]
end

.error? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 36

def self.error?
  @error ||= configuration[:error][:enabled]
end

.idle? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 40

def self.idle?
  @idle ||= configuration[:idle][:enabled]
end

.middleware? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 48

def self.middleware?
  @middleware ||= configuration[:middleware][:enabled]
end

.queue_time? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 52

def self.queue_time?
  @queue_time ||= configuration[:queue_time][:enabled]
end

.request? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 32

def self.request?
  @request ||= configuration[:request][:enabled]
end

.request_timing_required? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 28

def self.request_timing_required?
  request? || apdex?
end

.reset ⇒ Object 



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# File 'lib/metrician/middleware.rb', line 64

def self.reset
  %w[@configuration @enabled @request @error @idle @response_size @middleware @queue_time @route_tracking @apdex].each do |memo_ivar|
    if instance_variable_defined?(memo_ivar)
      remove_instance_variable(memo_ivar)
    end
  end
end

.response_size? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 44

def self.response_size?
  @response_size ||= configuration[:response_size][:enabled]
end

.route_tracking? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metrician/middleware.rb', line 56

def self.route_tracking?
  @route_tracking ||= configuration[:route_tracking][:enabled]
end