optimizely_factory_pattern.java

public ProductSort getExperimentImpl(String experimentName, String userId){
   Variation variation = this.optimizelyClient.activate(experimentName, userId);

   ProductSort retobj = null;

   if(variation.getKey().equals("PriceProductSort")){
       retobj = new CategoryProductSort();
   } else if(variation.getKey().equals("NameProductSort")){
       retobj = new NameProductSort();
   } else if(variation.getKey().equals("CategoryProductSort")){
       retobj = new PriceProductSort();
   } else{
       //Defaulting to price sorting
       retobj = new PriceProductSort();
   }

   return retobj;
}