Class: NYNY::Router

Inherits:
Object
  • Object
show all
Defined in:
lib/nyny/router.rb

Constant Summary collapse

NullHandler = 
Class.new

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Router

Returns a new instance of Router.



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# File 'lib/nyny/router.rb', line 6

def initialize options
  @fallback     = options[:fallback]
  @routes       = options[:routes]
  @before_hooks = options[:before_hooks]
  @after_hooks  = options[:after_hooks]
end

Instance Attribute Details

#after_hooks ⇒ Object (readonly)

Returns the value of attribute after_hooks.



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# File 'lib/nyny/router.rb', line 5

def after_hooks
  @after_hooks
end

#before_hooks ⇒ Object (readonly)

Returns the value of attribute before_hooks.



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# File 'lib/nyny/router.rb', line 5

def before_hooks
  @before_hooks
end

#fallback ⇒ Object (readonly)

Returns the value of attribute fallback.



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# File 'lib/nyny/router.rb', line 5

def fallback
  @fallback
end

#routes ⇒ Object (readonly)

Returns the value of attribute routes.



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# File 'lib/nyny/router.rb', line 5

def routes
  @routes
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/nyny/router.rb', line 22

def call env
  req = Request.new(env)
  handler, params = find_handler req

  if handler != NullHandler
    prepare_params req, params
    process req, handler
  else
    fallback.call env
  end
end

#find_handler(request) ⇒ Object 



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# File 'lib/nyny/router.rb', line 13

def find_handler request
  routes.fetch(request.request_method.downcase.to_sym, []).each do |sig, h|
    params = sig.match request.path
    return [h, params] if params
  end

  [NullHandler, {}]
end

#prepare_params(request, url_params) ⇒ Object 



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# File 'lib/nyny/router.rb', line 34

def prepare_params request, url_params
  request.params.merge! url_params
  request.params.default_proc = proc {|h,k| h[k.to_s] || h[k.to_sym]}
end

#process(request, handler) ⇒ Object 



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# File 'lib/nyny/router.rb', line 39

def process request, handler
  scope = RequestScope.new(request)
  catch (:halt) do
    before_hooks.each {|h| scope.instance_eval &h }
    response = scope.apply_to &handler
    after_hooks.each {|h| scope.instance_eval &h }
    response
  end
end