Contents

# Copyright (c) 2008 The Committers

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

module Rack
  # Sets an "X-Runtime" response header, indicating the response
  # time of the request, in seconds
  #
  # You can put it right before the application to see the processing
  # time, or before all the other middlewares to include time for them,
  # too.
  class Runtime
    def initialize(app, name = nil)
      @app = app
      @header_name = "X-Runtime"
      @header_name << "-#{name}" if name
    end

    def call(env)
      start_time = Time.now
      status, headers, body = @app.call(env)
      request_time = Time.now - start_time

      if !headers.has_key?(@header_name)
        headers[@header_name] = "%0.6f" % request_time
      end

      [status, headers, body]
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
deltacloud-core-0.5.0	lib/sinatra/rack_runtime.rb
deltacloud-core-0.4.1	lib/sinatra/rack_runtime.rb
deltacloud-core-0.4.0	lib/sinatra/rack_runtime.rb