Class: Doozer::App

Inherits:
Object show all
Includes:
Util::Logger
Defined in:
lib/doozer/app.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util::Logger

#logger

Constructor Details

#initialize(args = {}) ⇒ App

Returns a new instance of App.



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# File 'lib/doozer/app.rb', line 6

def initialize(args={})
  @options=args

  # load routes
  load_routes
  
  # load the application models, coontrollers, views, and helpers
  load_files
        
  # attach the file watcher for the mvc/lib/etc in development mode
  load_watcher if Doozer::Configs.rack_env != :deployment
  
  puts "=> Doozer racked up"
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/doozer/app.rb', line 4

def options
  @options
end

Class Method Details

.controllers ⇒ Object 



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# File 'lib/doozer/app.rb', line 326

def self.controllers
  @@controllers
end

.layouts ⇒ Object 



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# File 'lib/doozer/app.rb', line 330

def self.layouts
  @@layouts
end

.views ⇒ Object 



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# File 'lib/doozer/app.rb', line 334

def self.views
  @@views
end

Instance Method Details

#app_path ⇒ Object 



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# File 'lib/doozer/app.rb', line 322

def app_path
  Doozer::Configs.app_path
end

#call(env) ⇒ Object

This method is called along the rackup chain and maps the request path to the route, controller, and view for the format type.



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# File 'lib/doozer/app.rb', line 22

def call(env)
  # p env.inspect
  # [200, {"Content-Type" => "text/html"}, "DOH!!!"]
    path = env["PATH_INFO"]
    # match env.path_info against the route compile
    #p env.inspect
    route = Doozer::Routing::Routes::match(path)
    # p "path: #{path}"
    # p "route: #{route.inspect}"
    app = nil
    
    if not route.nil?
      if route.app.nil?
        extra_params = route.extra_params(path)
        controller_klass = handler(route.controller.to_sym)
        controller = controller_klass.new({:env=>env, :route=>route, :extra_params=>extra_params, :port=>@options[:Port]})
        
        # call after_initialize test for excludes
        #execution_time('controller.after_initialize',:start)
        controller.after_initialize if not controller_klass.after_initialize_exclude.include?(route.action.to_sym)
        #execution_time(nil, :end)
        
        begin

          # call before_filter test for excludes
          #execution_time('controller.before_filter',:start)
          controller.before_filter if not controller_klass.before_filter_exclude.include?(route.action.to_sym)
          #execution_time(nil,:end)
          
          # call the action method
          #execution_time('controller.method(route.action).call',:start)
          controller.method(route.action).call()
          #execution_time(nil,:end)
          
          # call after_filter test for excludes
          #execution_time('controller.after_filter',:start)
          controller.after_filter if not controller_klass.after_filter_exclude.include?(route.action.to_sym)
          #execution_time(nil, :end)
          
          # render controller...
          #execution_time('controller.render_result',:start)
          r = Rack::Response.new(controller.render_result, route.status, {"Content-Type" => route.content_type})
          #execution_time(nil,:end)
          r.set_cookie('flash',{:value=>nil, :path=>'/'})
          r.set_cookie('session',{:value=>controller.session_to_cookie(), :path=>'/'})
          r = controller.write_response_cookies(r)
          
          # finalize the request
          controller.finished!
          controller = nil
          app = r.to_a

        rescue Doozer::Redirect => redirect
          # set the status to the one defined in the route which type of redirect do we need to handle?
          status = (route.status==301) ? 301 : 302
          # check to make sure the status wasn't manually changed in the controller
          status = redirect.status if not redirect.status.nil?
                      
          r = Rack::Response.new("redirect...", status, {"Content-Type" => "text/html", "Location"=>redirect.url})
          # if we get a redirect we need to do something with the flash messages...
          r.set_cookie('flash',{:value=>controller.flash_to_cookie(), :path=>'/'}) # might need to set the domain from config app_name value
          r.set_cookie('session',{:value=>controller.session_to_cookie(), :path=>'/'})
          
          # finalize the request              
          controller.finished!
          controller = nil
          app = r.to_a
        rescue => e
          # finalize the request
          controller.finished!
          controller = nil
          
          if Doozer::Configs.rack_env == :deployment
            logger.error("RuntimeError: #{e.to_s}")
            for line in e.backtrace
              logger.error("        #{line}")
            end
            logger.error("Printing env variables:")
            logger.error(env.inspect)
            app = [500, {"Content-Type" => "text/html"}, @@errors[500]]
          else
            raise e
          end
        end
      else
        app = route.app.call(env)
      end
    else
      app = [404, {"Content-Type" => "text/html"}, @@errors[404]]
    end
    
    # pass the app through route.middleware_after if defined
    app = route.middleware_after.new(app, {:config=>Doozer::Configs, :route=>route}).call(env) if route and route.middleware_after
  
    return app
end

#execution_time(name = nil, point = :start) ⇒ Object 



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# File 'lib/doozer/app.rb', line 119

def execution_time(name = nil, point = :start)
  if Doozer::Configs.rack_env == :development
    @execution_time_name = name if name
    @execution_time_start = Time.now().to_f if point == :start
    @execution_time_end = Time.now().to_f if point == :end
    logger.info("Excecution Time: #{@execution_time_name}: #{("%0.2f" % ( (@execution_time_end - @execution_time_start) * 1000).to_f)}ms") if point == :end
  end
end

#handler(key) ⇒ Object 



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# File 'lib/doozer/app.rb', line 318

def handler(key)
  return Object.const_get(@@controllers[key])
end

#load_files ⇒ Object

Load all application files for app/helpers/*, app/views/layouts/*, app/views/* and app/controllers/*



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# File 'lib/doozer/app.rb', line 129

def load_files
  # load models
  load_models
  puts "=> Caching files"
  @@controllers = {}
  @@mailers = {}
  @@layouts={}
  @@views={}
  @@errors={}
  
  # require helper files and include into Doozer::Partial
  helper_files = Dir.glob(File.join(app_path,'app/helpers/*_helper.rb'))      
  helper_files.each {|f|
    require f
    key = f.split("helpers/")[1].gsub(/.rb/,'')
    Doozer::Partial.include_view_helper(key)
  }
  
  # cache contoller classes
  controller_files = Dir.glob(File.join(app_path,'app/controllers/*_controller.rb'))
  # we need to load the application_controller first since this might not be the first in the list...
  if controller_files.length > 0
    i=0
    for f in controller_files
      break if i==0 and f.index('application_controller.rb')
      if f.index('application_controller.rb')
        controller_files.insert(0, controller_files.delete(f))
        break
      end
      i+=1
    end
  end
  
  controller_files.each { |f|
    require f 
    key = f.split("controllers/")[1].split("_controller.rb")[0]
    if key.index("_")
      value = key.split('_').each{ | k | k.capitalize! }.join('') 
    else
      value = key.capitalize
    end
    klass_name = "#{value}Controller"
    @@controllers[key.to_sym] = klass_name
    # p "cache controller: #{key.to_sym}"
    
    # importing view helpers into controller
    controller_klass = Object.const_get(klass_name)
    # automatically ads the application helper to the class
    controller_klass.include_view_helper('application_helper')
    controller_klass.include_view_helpers
  }
  
  # cache layout erb's
  layout_files = Dir.glob(File.join(app_path,'app/views/layouts/*.erb'))
  layout_files.each {|f|
    key = f.split("layouts/")[1].split(".html.erb")[0].gsub(/.xml.erb/, '_xml').gsub(/.json.erb/, '_json').gsub(/.js.erb/, '_js').gsub(/.rss.erb/, '_rss').gsub(/.atom.erb/, '_atom')
    results = []
    File.new(f, "r").each { |line| results << line }
    @@layouts[key.to_sym] = ERB.new(results.join(""))
  }
  
  #lood 404 and 500 pages if they exist
  pnf = Doozer::Configs.page_not_found_url
  if pnf
    file = File.join(app_path,"#{pnf}")
    results = []
    File.new(file, "r").each { |line| results << line }
    @@errors[404] = results.join("")
  else
    @@errors[404] = "<html><body>Sorry, this page can't be found.</body></html>"
  end
  ise = Doozer::Configs.internal_server_error_url
  if ise
    file = File.join(app_path,"#{ise}")
    results = []
    File.new(file, "r").each { |line| results << line }
    @@errors[500] = results.join("")
  else
    @@errors[500] = "<html><body>There was an internal server error which borked this request.</body></html>"
  end
  
  @@controllers.each_key { | key |
    # p key.inspect
    files = Dir.glob(File.join(app_path,"app/views/#{key.to_s}/*.erb"))
    files.each { | f |
      #!!!don't cache partials here!!!
      view = f.split("#{key.to_s}/")[1].split(".erb")[0].gsub(/\./,'_')
      # p "check view: #{view}"
      if not /^_/.match( view )
        # p "cache view: #{view}"
        results = []
        File.new(f, "r").each { |line| results << line }
        @@views[key] = {} if @@views[key].nil?
        @@views[key][view.to_sym] = ERB.new(results.join(""))
      end
    }
  }

  mailer_files = Dir.glob(File.join(app_path,'app/mailers/*_mailer.rb'))
  mailer_files.each { |f|
    require f 
    key = f.split("mailers/")[1].split("_mailer.rb")[0]
    if key.index("_")
      value = key.split('_').each{ | k | k.capitalize! }.join('') 
    else
      value = key.capitalize
    end
    klass_name = "#{value}Mailer"
    @@mailers[key.to_sym] = klass_name
    # puts "cache mailer: #{key.to_sym}"
    # importing view helpers into controller
    mailer_klass = Object.const_get(klass_name)
    # automatically ads the application helper to the class
    mailer_klass.include_view_helper('application_helper')
    mailer_klass.include_view_helpers
  }
  
  mail_key = :mail
  mailer_files = Dir.glob(File.join(app_path,"app/views/#{mail_key.to_s}/*.erb"))
  mailer_files.each { | f |
    #!!!don't cache partials here!!!
    view = f.split("#{mail_key.to_s}/")[1].split(".erb")[0].gsub(/\./,'_')
    if not /^_/.match( view )
      # puts "cache view: #{view}"
      results = []
      File.new(f, "r").each { |line| results << line }
      @@views[mail_key] = {} if @@views[mail_key].nil?
      @@views[mail_key][view.to_sym] = ERB.new(results.join(""))
    end
  }
end

#load_models ⇒ Object

Load all application models in app/models



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# File 'lib/doozer/app.rb', line 267

def load_models
  puts "=> Loading models"
  Dir.glob(File.join(app_path,'app/models/*.rb')).each { | model | 
    require model 
  }
end

#load_routes ⇒ Object

Load application routes



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# File 'lib/doozer/app.rb', line 262

def load_routes
  require File.join(app_path, 'config/routes')
end

#load_watcher ⇒ Object

Loads the file watcher for all application files while in development mode-only.

This allows you to edit files without restarting the app server to pickup new changes.



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# File 'lib/doozer/app.rb', line 277

def load_watcher
  require 'doozer/watcher'
  
  puts "=> Watching files for changes"
  watcher = FileSystemWatcher.new()
  
  # watcher.addDirectory(File.join(File.dirname(__FILE__),'../doozer/'), "*.rb")
  watcher.addDirectory( app_path + '/app/', "**/*")
  watcher.addDirectory( app_path + '/app', "**/**/*")
  watcher.addDirectory( app_path + '/config/', "*.*")
  watcher.addDirectory( app_path + '/lib/', "*.*")
  watcher.addDirectory( app_path + '/static/', "*.*")
  watcher.addDirectory( app_path + '/static/', "**/**/*")

  watcher.sleepTime = 1
  watcher.start { |status, file|
    if(status == FileSystemWatcher::CREATED) then
        puts "created: #{file}"
        load_files
        Doozer::Partial.clear_loaded_partials
        Doozer::MailerPartial.clear_loaded_partials
    elsif(status == FileSystemWatcher::MODIFIED) then
        puts "modified: #{file}"
        load_files
        Doozer::Partial.clear_loaded_partials
        Doozer::MailerPartial.clear_loaded_partials
        Doozer::Configs.clear_static_files
    elsif(status == FileSystemWatcher::DELETED) then
        puts "deleted: #{file}"
        load_files
        Doozer::Partial.clear_loaded_partials
        Doozer::MailerPartial.clear_loaded_partials
        Doozer::Configs.clear_static_files
    end
  }
  #don't join the thread it messes up rackup threading watcher.join()
  # p watcher.isStarted?
  # p watcher.isStopped?
  # p watcher.foundFiles.inspect
end