code: function selectService (service){
  
      if(typeof(uServices[service]) !== 'undefined'){
  
          if (uServices[service].length !== 0 ) {
              var uService = uServices[service], //array
                  activeuService = uService[0];
              // the first service should be active but if is not, should look for an active one
              if (activeuService.status == 0) {
                  var foundOne = false;
                  for ( var i = 0 ; i < uService.length ; i++ ){
                      if ( foundOne == false && uService[i].status == 1 ) {
                          activeuService = uService[i];
                          foundOne = true;
                      }
                  }
                  //if there is not active service just stay whith the first one
              }
  
              activeuService.status = 0;     //change state to busy
  
              uService.shift();              //take the service out of the list
              uService.push(activeuService); // pushing the service at the end of the list
              uService[0].status = 1;        //activate other service
  
              //save the new uServices
              uServices[service] = uService;
  
              // changing the variable on redis
              client.set('uServices', JSON.stringify(uServices));
              // Publish that it did an update
              client.publish('uServicesChannel', 'UPDATE');
              return activeuService;
  
          } else {
              //not services availables
              console.log('Not services %s available', service);
              //return error to broker
              return 'Not services '+service+' available'
          }
  
      } else {
          return "not services with name "+service;
          // return an error cause there are no services with that name
      }
  }
docs: Select a service to assign a job and activate the next service
  @param service
  @returns {*}