@GET
 @Path("/get")
 @Consumes(MediaType.APPLICATION_XML)
 public Temperature read(@QueryParam("id") long id) {
   System.out.println("readTemperature");
   return temperatureEJB.findTemperatureById(id).toTemperatureData();
 }
 @DELETE
 @Path("/del")
 public void delete(@QueryParam("id") long id) {
   System.out.println("deleteTemperature");
   TemperatureEntity temperature = temperatureEJB.findTemperatureById(id);
   if (temperature != null) {
     temperatureEJB.deleteTemperature(temperature);
   }
 }