count: function (resources, period) {
            var request = {
              period: period,
              queries: resources
            };
            return StatusForPeriodsRes._count({}, request);
          },

var StatusForPeriodsRes = $resource(
            Url.forSys('my-app').api('statuses/:id/:action'), {},{
              _count: {
                method: 'PUT',
                params: {
                  action: 'count'
                }
              }
            }
        );

@RequestMapping(value = "/statuses/count", method = PUT)
    public Long countStatuses(@RequestBody Req req){
...
return longVal;
}

var str =  myApi.count(resources, period);
      str.$promise.then(function(response){
      console.log(response);
      });