Reduce the cost of using ActionController::Http significantly by:

  * Removing the dependency on AD::Request and AD::Response
  * Moving the logic for the request and response object
    into a new module that is included by default.
  * Changing Renderer and Redirector to use self.headers,
    self.content_type, and self.status, which have very basic
    default implementations on AC::Http. When RackConvenience
    is included (which it is by default on AC::Base), the full
    Request/Response logic is used instead of the simple logic.

1 files changed, 34 insertions, 0 deletions

diff --git a/actionpack/lib/action_controller/new_base/rack_convenience.rb b/actionpack/lib/action_controller/new_base/rack_convenience.rb
new file mode 100644
index 0000000000..0422ab2f14
--- /dev/null
+++ b/actionpack/lib/action_controller/new_base/rack_convenience.rb
@@ -0,0 +1,34 @@
+module ActionController
+  module RackConvenience
+    extend ActiveSupport::DependencyModule
+    
+    included do
+      delegate :headers, :status=, :location=, 
+               :status, :location, :content_type, :to => "@_response"
+      attr_internal :request, :response
+    end
+    
+    def call(name, env)
+      @_request = ActionDispatch::Request.new(env)
+      @_response = ActionDispatch::Response.new
+      @_response.request = request
+      super
+    end
+    
+    def params
+      @_params ||= @_request.parameters
+    end
+    
+    # :api: private
+    def to_rack
+      @_response.prepare!
+      @_response.to_a
+    end
+    
+    def response_body=(body)
+      response.body = body if response
+      super
+    end
+    
+  end
+end
\ No newline at end of file