Class: Extface::JobsController

Inherits:
ApplicationController show all
Includes:
ActionController::Live
Defined in:
app/controllers/extface/jobs_controller.rb

Instance Method Summary collapse

Methods inherited from ApplicationController

#extfaceable, #index

Instance Method Details

#allow_cross_origin ⇒ Object 



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# File 'app/controllers/extface/jobs_controller.rb', line 10

def allow_cross_origin
  headers['Access-Control-Allow-Origin'] = '*'
end

#show ⇒ Object 



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# File 'app/controllers/extface/jobs_controller.rb', line 14

def show
  response.headers['Content-Type'] = 'text/event-stream'
  @job = Job.find(params[:id])
  if @job.completed?
    response.stream.write("data: Job #{@job.id} completed!\n\n")
  elsif @job.failed?
    response.stream.write("data: Job #{@job.id} failed!\n\n")
  else
    #redis = Redis.new
    response.stream.write("data: Job #{@job.id} waiting for device connection...\n\n")
    Timeout.timeout(Extface.device_timeout) do #never stay too long, TODO add SSE option to reconnect
      Extface.redis_block do |r|
        r.subscribe(@job.id) do |on|
          on.message do |event, data|
            p "@@@@ #{event}: #{data}\n\n"
            response.stream.write("data: #{data}\n\n") unless data == 'OK'
            r.unsubscribe if data == "Job #{@job.id} completed!" || data == "Job #{@job.id} failed!" #FIXME stupid
          end
        end
      end
    end
  end
rescue Timeout::Error
  #TODO invite reconnect
ensure
  response.stream.close
end