+++ /dev/null
-module ActionController
- # Dispatches requests to the appropriate controller and takes care of
- # reloading the app after each request when Dependencies.load? is true.
- class Dispatcher
- class << self
- def define_dispatcher_callbacks(cache_classes)
- unless cache_classes
- unless self.middleware.include?(Reloader)
- self.middleware.insert_after(Failsafe, Reloader)
- end
-
- ActionView::Helpers::AssetTagHelper.cache_asset_timestamps = false
- end
-
- if defined?(ActiveRecord)
- to_prepare(:activerecord_instantiate_observers) { ActiveRecord::Base.instantiate_observers }
- end
-
- after_dispatch :flush_logger if Base.logger && Base.logger.respond_to?(:flush)
-
- to_prepare do
- I18n.reload!
- end
- end
-
- # DEPRECATE: Remove CGI support
- def dispatch(cgi = nil, session_options = CgiRequest::DEFAULT_SESSION_OPTIONS, output = $stdout)
- new(output).dispatch_cgi(cgi, session_options)
- end
-
- # Add a preparation callback. Preparation callbacks are run before every
- # request in development mode, and before the first request in production
- # mode.
- #
- # An optional identifier may be supplied for the callback. If provided,
- # to_prepare may be called again with the same identifier to replace the
- # existing callback. Passing an identifier is a suggested practice if the
- # code adding a preparation block may be reloaded.
- def to_prepare(identifier = nil, &block)
- @prepare_dispatch_callbacks ||= ActiveSupport::Callbacks::CallbackChain.new
- callback = ActiveSupport::Callbacks::Callback.new(:prepare_dispatch, block, :identifier => identifier)
- @prepare_dispatch_callbacks.replace_or_append!(callback)
- end
-
- def run_prepare_callbacks
- if defined?(Rails) && Rails.logger
- logger = Rails.logger
- else
- logger = Logger.new($stderr)
- end
-
- new(logger).send :run_callbacks, :prepare_dispatch
- end
-
- def reload_application
- # Run prepare callbacks before every request in development mode
- run_prepare_callbacks
-
- Routing::Routes.reload
- end
-
- def cleanup_application
- # Cleanup the application before processing the current request.
- ActiveRecord::Base.reset_subclasses if defined?(ActiveRecord)
- ActiveSupport::Dependencies.clear
- ActiveRecord::Base.clear_reloadable_connections! if defined?(ActiveRecord)
- end
- end
-
- cattr_accessor :middleware
- self.middleware = MiddlewareStack.new do |middleware|
- middlewares = File.join(File.dirname(__FILE__), "middlewares.rb")
- middleware.instance_eval(File.read(middlewares))
- end
-
- include ActiveSupport::Callbacks
- define_callbacks :prepare_dispatch, :before_dispatch, :after_dispatch
-
- # DEPRECATE: Remove arguments, since they are only used by CGI
- def initialize(output = $stdout, request = nil, response = nil)
- @output = output
- @app = @@middleware.build(lambda { |env| self.dup._call(env) })
- end
-
- def dispatch
- begin
- run_callbacks :before_dispatch
- Routing::Routes.call(@env)
- rescue Exception => exception
- if controller ||= (::ApplicationController rescue Base)
- controller.call_with_exception(@env, exception).to_a
- else
- raise exception
- end
- ensure
- run_callbacks :after_dispatch, :enumerator => :reverse_each
- end
- end
-
- # DEPRECATE: Remove CGI support
- def dispatch_cgi(cgi, session_options)
- CGIHandler.dispatch_cgi(self, cgi, @output)
- end
-
- def call(env)
- @app.call(env)
- end
-
- def _call(env)
- @env = env
- dispatch
- end
-
- def flush_logger
- Base.logger.flush
- end
- end
-end