Class: ResolveController

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# File 'app/controllers/resolve_controller.rb', line 238

def background_status

  unless ( @user_request.any_services_in_progress? )
    
    # Just redirect to ordinary index, no need to show progress status.
    # Include request.id, but also context object kev. 
    
    params_hash = 
       {:controller=>"resolve",
        :action=>'index', 
        'umlaut.skip_resolve_menu'.to_sym => params['umlaut.skip_resolve_menu'],
        'umlaut.request_id'.to_sym => @user_request.id }
    
    url = url_for_with_co( params_hash, @user_request.to_context_object )
    
    redirect_to( url )
  else
    # If we fall through, we'll show the background_status view, a non-js
    # meta-refresh update on progress of background services.
    # Your layout should respect this instance var--it will if it uses
    # the resolve_head_content partial, which it should.
    @meta_refresh_self = 5  
  end
end

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# File 'app/controllers/resolve_controller.rb', line 229

def background_update
  unless (@user_request)
    # Couldn't find an existing request? We can do nothing.
    raise Exception.new("background_update could not find an existing request to pull updates from, umlaut.request_id #{params["umlaut.request_id"]}")
  end
end

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# File 'app/controllers/resolve_controller.rb', line 221

def banner_menu
   self.setup_banner_link()
end

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# File 'app/controllers/resolve_controller.rb', line 200

def bannered_link_frameset

    # Normally we should already have loaded the request in the index method,
    # and our before filter should have found the already loaded request
    # for us. But just in case, we can load it here too if there was a
    # real open url. This might happen on re-loads (after a long time or
    # cookie expire!) or in other weird cases.
    # If it's not neccesary, no services will be dispatched,
    # service_dispatch catches that. 
    self.service_dispatch()
    @user_request.save!
    
    self.setup_banner_link()

    # Use our new view with iframe instead of frameset.
    # Comment this out to go back to bannered_link_frameset
    # view with actual frameset. 
    render(:template => "resolve/bannered_link_iframe")
end

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# File 'app/controllers/resolve_controller.rb', line 195

def display_coins

end

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# File 'app/controllers/resolve_controller.rb', line 74

def expire_old_responses
  require 'CronTab'
  
  expire_interval = AppConfig.param('response_expire_interval')
  crontab_format = AppConfig.param('response_expire_crontab_format')

  unless (expire_interval || crontab_format)      
    # Not needed, nothing to expire
    return nil
  end
  
  responses_expired = 0
  @user_request.dispatched_services.each do |ds|

    now = Time.now
    
    expired_interval = expire_interval && 
      (now - ds.created_at > expire_interval)
    expired_crontab = crontab_format && 
      (now > CronTab.new(crontab_format).nexttime(ds.created_at))
    
    # Only expire completed ones, don't expire in-progress ones! 
    if (ds.completed && ( expired_interval || expired_crontab ))
        
        # Need to expire. Delete all the service responses, and
        # the DispatchedService record, and service will be automatically
        # run again. 
        
        serv_id = ds.service.service_id
        expired_responses = @user_request.service_types.each do |st|
          
          if st.service_response.service.service_id == serv_id
            @user_request.service_types.delete(st)
            responses_expired += 1
            st.service_response.destroy
            st.destroy
          end
        end
        @user_request.dispatched_services.delete(ds)
        ds.destroy
    end
  end
end

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# File 'app/controllers/resolve_controller.rb', line 146

def index
  self.service_dispatch()

  # link is a ServiceType object
  link = should_skip_menu
  if ( ! link.nil? )
    if (params["umlaut.link_with_frameset"] !=  "false")
      url = frameset_action_url( link, {'umlaut.skipped_menu' => 'true'})
    else        
      new_params = { :controller => "link_router",
                 :action => "index",
                 :id => link.id }
    
      url = url_for(new_params)
    end
    redirect_to url
  else
    # Render configed view, if configed, or "index" view if not. 
    view = AppConfig.param("resolve_view", "resolve/index")
    render :template => view
  end

end

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# File 'app/controllers/resolve_controller.rb', line 39

def init_processing
  options = {}
  if (  @@no_create_request_actions.include?(params[:action])  )
    options[:allow_create] = false
  end
  @user_request ||= Request.new_request(params, session, request, options )

  # If we chose not to create a request and still don't have one, bale out.
  return unless @user_request
  
  # Ip may be simulated with req.ip in context object, or may be
  # actual, request figured it out for us. 
  @collection = Collection.new(@user_request, session, params["umlaut.institution"])      
  @user_request.save!
  # Set 'timed out' background services to dead if neccesary. 
  @user_request.dispatched_services.each do | ds |
      if ( (ds.status == DispatchedService::InProgress ||
            ds.status == DispatchedService::Queued ) &&
            (Time.now - ds.updated_at) > self.class.background_service_timeout)

            ds.store_exception( Exception.new("background service timed out (took longer than #{self.class.background_service_timeout} to run); thread assumed dead.")) unless ds.exception_info
            # Fail it temporary, it'll be run again. 
            ds.status = DispatchedService::FailedTemporary
            ds.save!
            logger.warn("Background service timed out, thread assumed dead. #{@user_request.id} / #{ds.service.service_id}")
      end
  end
  
  return @user_request
end

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# File 'app/controllers/resolve_controller.rb', line 271

def partial_html_sections
  # Tell our application_helper#url_for to generate urls with hostname
  @generate_urls_with_host = true

  # Force background status to be the spinner--default js way of putting
  # spinner in does not generally work through ajax techniques.
  @force_bg_progress_spinner = true

  # Mark that we're doing a partial generation, because it might
  # matter later. 
  @generating_embed_partials = true
  
  @partial_html_sections = SectionRenderer.partial_html_sections.clone    
  
  # Run the request if neccesary. 
  self.service_dispatch()
  @user_request.save!

  self.api_render()
  
end

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# File 'app/controllers/resolve_controller.rb', line 176

def register_request
  # init before filter already took care of setting up the request.
  @user_request.save!

  # Return data in headers allowing client to redirect user
  # to view actual response. 
  headers["x-umlaut-request_id"] = @user_request.id
  headers["x-umlaut-resolve_url"] = url_for( :controller => 'resolve', 'umlaut.request_id'.to_sym => @user_request.id )
  headers["x-umlaut-permalink_url"] = permalink_url( request, @user_request )

  # Return empty body. Once we have the xml response done,
  # this really ought to return an xml response, but with
  # no service responses yet available.
  render(:nothing => true)
end

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# File 'app/controllers/resolve_controller.rb', line 305

def rescue_action_in_public(exception)  
  render(:template => "error/resolve_error", :status => 500, :layout => AppConfig.param("resolve_layout", "resolve_basic")) 
end

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# File 'app/controllers/resolve_controller.rb', line 142

def save_request
  @user_request.save!
end

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# File 'app/controllers/resolve_controller.rb', line 118

def setup_banner_link
  # We keep the id of the ServiceType join object in param 'umlaut.id' for
  # banner frameset link type actions. Take it out and stick the object
  # in a var if available.    
  joinID = params['umlaut.id'.to_sym]
  
  @service_type_join = @user_request.service_types.find_all_by_id(joinID).first if joinID
  
  # default?    
  unless ( @service_type_join )
     
    @service_type_join = 
      @user_request.service_types.find_by_service_type_value_id(
    ServiceTypeValue[:fulltext].id )
  end

  

  unless @service_type_join 
     raise "No service_type_join found!. params[umlaut.id] == #{params['umlaut.id'.to_sym]}"
  end
  
end