Class: Corn::Rack::SlowRequestProfiler::ProfilingApp

Inherits:
Object
  • Object
show all
Defined in:
lib/corn/rack/slow_request_profiler.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ ProfilingApp

Returns a new instance of ProfilingApp.



8
9
10
11
12
13
14
 
# File 'lib/corn/rack/slow_request_profiler.rb', line 8

def initialize(app)
  @@prof ||= Profiler.new(Corn.post_interval,
                          Corn.sampling_interval)
  @app = app
  Corn.logger.info("Corn sampling interval: #{Corn.sampling_interval}")
  Corn.logger.info("Corn slow request threshold: #{Corn.slow_request_threshold}")
end

Instance Method Details

#call(env) ⇒ Object 



16
17
18
19
20
21
22
 
# File 'lib/corn/rack/slow_request_profiler.rb', line 16

def call(env)
  if Corn.profiling?(env)
    @@prof.profile(output_handler(env)) { @app.call(env) }
  else
    @app.call(env)
  end
end

#output_handler(env) ⇒ Object 



29
30
31
32
33
34
35
36
 
# File 'lib/corn/rack/slow_request_profiler.rb', line 29

def output_handler(env)
  request_env = RequestEnv.new(env)
  lambda do |data|
    if request_env.time > Corn.slow_request_threshold
      request_env.to_report.merge("data" => data)
    end
  end
end

#terminate ⇒ Object 



24
25
26
27
 
# File 'lib/corn/rack/slow_request_profiler.rb', line 24

def terminate
  @@prof.terminate
  @@prof = nil
end