Class: Journey::Router

Inherits:
Object
  • Object
show all
Defined in:
lib/journey/router.rb,
lib/journey/router/utils.rb,
lib/journey/router/strexp.rb

Defined Under Namespace

Classes: NullReq, RoutingError, Strexp, Utils

Constant Summary collapse

VERSION = 
'1.0.0'
RouteSet = 
Journey::Router
RegexpWithNamedGroups = 
Journey::Path::Pattern

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(routes, options) ⇒ Router

Returns a new instance of Router.



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# File 'lib/journey/router.rb', line 38

def initialize routes, options
  @options       = options
  @params_key    = options[:parameters_key]
  @request_class = options[:request_class] || NullReq
  @routes        = routes
end

Instance Attribute Details

#formatter ⇒ Object (readonly)

Returns the value of attribute formatter.



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# File 'lib/journey/router.rb', line 35

def formatter
  @formatter
end

#request_class ⇒ Object (readonly)

Returns the value of attribute request_class.



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# File 'lib/journey/router.rb', line 35

def request_class
  @request_class
end

#routes ⇒ Object

Returns the value of attribute routes.



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# File 'lib/journey/router.rb', line 36

def routes
  @routes
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/journey/router.rb', line 45

def call env
  env['PATH_INFO'] = Utils.normalize_path env['PATH_INFO']

  find_routes(env).each do |match, parameters, route|
    script_name, path_info, set_params = env.values_at('SCRIPT_NAME',
                                                       'PATH_INFO',
                                                       @params_key)

    unless route.path.anchored
      env['SCRIPT_NAME'] = script_name.to_s + match.to_s
      env['PATH_INFO']   = match.post_match
    end

    env[@params_key] = (set_params || {}).merge parameters

    status, headers, body = route.app.call(env)

    if 'pass' == headers['X-Cascade']
      env['SCRIPT_NAME'] = script_name
      env['PATH_INFO']   = path_info
      env[@params_key]   = set_params
      next
    end

    return [status, headers, body]
  end

  return [404, {'X-Cascade' => 'pass'}, ['Not Found']]
end

#recognize(req) ⇒ Object 



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# File 'lib/journey/router.rb', line 75

def recognize req
  find_routes(req.env).each do |match, parameters, route|
    unless route.path.anchored
      req.env['SCRIPT_NAME'] = match.to_s
      req.env['PATH_INFO']   = match.post_match.sub(/^([^\/])/, '/\1')
    end

    yield(route, nil, parameters)
  end
end

#visualizer ⇒ Object 



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# File 'lib/journey/router.rb', line 86

def visualizer
  tt     = GTG::Builder.new(ast).transition_table
  groups = partitioned_routes.first.map(&:ast).group_by { |a| a.to_s }
  asts   = groups.values.map { |v| v.first }
  tt.visualizer asts
end