Class: Dispatcher

Inherits:
Object show all
Defined in:
lib/lapillus/dispatcher.rb

Constant Summary collapse

HTTPHEADER = 
{ 'status'=> 'OK', 'Content-Type' => 'text/html; charset=utf-8'}

Class Method Summary collapse

Class Method Details

.dispatch(cgi, application) ⇒ Object 



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# File 'lib/lapillus/dispatcher.rb', line 11

def Dispatcher.dispatch(cgi, application)
  #    @@guard.synchronize do
  request_method = cgi.env_table['REQUEST_METHOD']
#    puts "Dispatcher.dispatch(#{cgi},#{application}): request_method=#{request_method}"
#    puts "cgi=#{cgi.to_yaml}"
  case request_method
  when "GET"
    Dispatcher.get(cgi, application)
  when "POST"
    Dispatcher.post(cgi, application)
  else
    raise "unexpected request method: "+request_method
  end
  #    end
end

.get(cgi, application) ⇒ Object

TODO: remove duplication between get and post TODO: set request cycle to nil when done TODO: remove duplication between new page and respond to event



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# File 'lib/lapillus/dispatcher.rb', line 30

def Dispatcher.get(cgi, application)
  #    log = WEBrick::Log.new
  #    log.info("URI path= #{cgi.env_table['PATH_INFO']}")
  
  #puts;puts cgi.env_table.each {|k,v| puts k.to_s+":"+v.to_s};puts    
  
  session = Dispatcher.get_session(cgi)
  
  request_cycle = RequestCycle.new(session)
  RequestCycle.set(request_cycle)
  path_info = cgi.env_table['PATH_INFO']
  
  if cgi.has_key?'listener'
    puts "AJAXREQUEST!   "+cgi['listener'].to_s
    
    pathparts=cgi.env_table['REQUEST_URI'].split('/')
    if pathparts.length==2 
      page_identifier = application.homepage.to_s
    else
      pagepath = pathparts[2]
      page_identifier = application.bookmarkable_pages[pagepath].to_s
    end
    
    page = restore_page_from_session(page_identifier, path_info, session)
    path_to_listener = cgi['listener']
    listener = page[path_to_listener]
    #TODO: this should be moved to the listener
    #TODO: we should always store the session whether we
    #rerender something or not
    puts "!!"+listener.class.to_s
    path_to_component = cgi['component']
    #NOTICE: non existing cgi variables are return as empty string
    if cgi.has_key?'menuitem'
      listener.on_menu(cgi['menuitem'])
      render_page_and_store_in_session(request_cycle, page, session, cgi, path_info)
      return
    else
      if path_to_component!=""
        component = page[path_to_component]
        listener.on_drop(component)
      elsif cgi.has_key? 'event'
        parameters=Hash.new
        unnecessary_keys=['listener','event']
        cgi.keys.each{|key|
          parameters[key]=cgi[key] unless unnecessary_keys.include? key
        }
        listener.send(cgi['event'], parameters)        
      elsif cgi.has_key? 'periodic_update'
        #puts "[#{Time.new}] has it changed yet?"
      else
        listener.on_click
      end
      store_page_in_session(page,path_info,session)
      
      cgi.out(HTTPHEADER) { listener.render_component }
      #puts "Dispatcher.get: listener.render_component=#{listener.render_component}"
      return
    end
  end
  
  pathparts=path_info.split('/')
  if pathparts.length<=2 
    page_identifier = application.homepage.to_s
  else
    pagepath = pathparts[2]
    page_identifier = application.bookmarkable_pages[pagepath].to_s
  end
  
  pathparts=path_info.split('/')
#    puts "pathparts.length #{pathparts.length}"
#    puts pathparts.join("::")
  if (pathparts.length<2)
    page = application.homepage.new
  else
    page_params = Hash.new
    pagepath = pathparts[1]
    (2..pathparts.length-1).step(2){|i| page_params[pathparts[i]]=pathparts[i+1]}
#      puts pagepath
    page = application.bookmarkable_pages[pagepath].new(page_params)
  end
  
  render_page_and_store_in_session(request_cycle, page, session, cgi, path_info)
end

.post(cgi, application) ⇒ Object

TODO: add test!



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# File 'lib/lapillus/dispatcher.rb', line 115

def Dispatcher.post(cgi, application)
  session = Dispatcher.get_session(cgi)
  
  request_cycle = RequestCycle.new(session)
  RequestCycle.set(request_cycle)
#    puts "cgi_page=#{cgi['page'].string}"
  page = restore_page_from_session(cgi['page'].string, cgi.env_table['PATH_INFO'], session)
  
  values = Hash.new()
  cgi.keys.each { |key| values[key] = cgi[key]}
  page.post(values)
  path_info = cgi.env_table['PATH_INFO']
  render_page_and_store_in_session(request_cycle, page, session, cgi, path_info)
end