Contents

module Rack
  class MiddlewareCompiler
    COMPILED = {}

    def self.build(name, &block)
      COMPILED[name] ||= new(name, &block)
    end

    def self.build!(name, &block)
      COMPILED[name] = new(name, &block)
    end

    attr_reader :middlewares, :name

    def initialize(name)
      @name = name
      @middlewares = []
      @compiled = nil
      yield(self) if block_given?
    end

    # FIXME: Should we use `|` or `+`?
    def use(*mws)
      @middlewares = mws | @middlewares
    end

    def run(app)
      @app = app
    end

    def cascade(*apps)
      @app = Rack::Cascade.new(apps)
    end

    # Default application for Innate
    def innate
      cascade(
        Rack::File.new('public'),
        Innate::Current.new(Innate::Route.new, Innate::Rewrite.new))
    end

    def static(path)
      require 'rack/contrib'
      Rack::ConditionalGet.new(Rack::ETag.new(Rack::File.new(path)))
    end

    def call(env)
      compile
      @compiled.call(env)
    end

    def compiled?
      @compiled
    end

    def compile
      return self if compiled?
      @compiled = @middlewares.inject(@app){|a,e| e.new(a) }
      self
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
manveru-innate-2009.02.06	lib/rack/middleware_compiler.rb