Class: Rack::Bug::SpeedTracer

Inherits:
Panel
  • Object
show all
Includes:
Rack::Bug::SpeedTrace::Render
Defined in:
lib/rack/bug/speedtracer/duck-puncher.rb,
lib/rack/bug/speedtracer.rb

Direct Known Subclasses

ProfilingSpeedTracer

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ SpeedTracer

Returns a new instance of SpeedTracer.



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# File 'lib/rack/bug/speedtracer.rb', line 20

def initialize(app)
  @app  = app
  @uuid = UUID.new
  super
end

Class Method Details

.database ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 12

def self.database
  @db ||= {}
end

.safe_method_names(mod, method_names) ⇒ Object 



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# File 'lib/rack/bug/speedtracer/duck-puncher.rb', line 34

def safe_method_names(mod, method_names)
  unsafe_names = (mod.public_instance_methods(true) + 
    mod.protected_instance_methods(true) + 
    mod.private_instance_methods(true)).sort.uniq

  method_names.map do |name|
    name = name.to_s
    prefix = "0"
    hidden_name = ["_", prefix, name].join("_")
    while unsafe_names.include?(hidden_name)
      prefix = prefix.next
      hidden_name = ["_", prefix, name].join("_")
    end

    unsafe_names << hidden_name
    [name, hidden_name]
  end
end

Instance Method Details

#after(env, status, headers, body) ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 50

def after(env, status, headers, body)
  env['st.tracer'].finish
  database[env['st.id']] = env['st.tracer']
  headers['X-TraceUrl'] = '/speedtracer?id=' + env['st.id']
end

#before(env) ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 42

def before(env)
  env['st.id']   = @uuid.generate

  tracer = SpeedTrace::Tracer.new(env['st.id'], env['REQUEST_METHOD'], env['REQUEST_URI'])
  env['st.tracer'] = tracer
  Thread::current['st.tracer'] = tracer
end

#content ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 38

def content
  render_template "traces", :traces => database
end

#database ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 16

def database
  self.class.database
end

#heading ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 34

def heading
  "#{database.keys.length} traces"
end

#name ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 30

def name
  "speedtracer"
end

#panel_app ⇒ Object 



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# File 'lib/rack/bug/speedtracer.rb', line 26

def panel_app
  return SpeedTrace::TraceApp.new(database)
end