These methods need to be refactored to prevent extra calls to the database to retrieve a Consumer.

Within the ConsumerResouce.java Class, getConsumer(uuid):
calls the method consumerCurator.verifyAndLookupConsumer(uuid) to retrieve a Consumer. 
The method then proceeds to check the consumer object for imminent certificate expiration in the next 90 days or less. If it discovers certs are to expire in 90 days or less the method then calls:
regenerateIdentityCertificates(uuid)   

the regenerateIdentityCertificates(uuid) method is not a utility method, but instead an endpoint definition that takes a uuid as an argument rather then taking a consumer object as the argument so of course the method calls: consumerCurator.verifyAndLookupConsumer(uuid)  
to get the consumer that the method the calling method (getConsumer) already has creating additional calls to the db for no gain whatsoever. 

In addition: consumerCurator.verifyAndLookupConsumer(uuid)  verifies nothing. Why its name implies it does.... 

I suggest that the described code should be refactored as follows:


public Consumer GetConsumer(..., String uuid){
   Consumer consumer lookupConsumer();  // rename the verifyAndLookupConsumer

   // remove this line, you can never get here because the
   // verifyAndLookupConsumer(uuid) checks for null and throws an exception
   // if it finds one. Besides the next block makes it moot
   if (consumer != null)

   // move the cert check code to the consumer class so that certs
   // are checked every time the Consumer class is constructed. This was the consumer   
   // class is always verified at construction. That way all rules for what is 
   // a valid consumer are stored and validated in the consumer Class 
   if (consumer.updateCertsRequired()) {
      this.updateCerts(consumer);
   }
 
    // enrich with subscription data
    consumer.setCanActivate(subAdapter.canActivateSubscription(consumer));
    // enrich with installed product data
    addDataToInstalledProducts(consumer);

   return verifiedConsumer;
}





public Consumer regenerateIdentityCertificates(..., String uuid) { 

  Consumer consumer lookupConsumer(); 
  
  if (consumer.updateCertsRequired()) {
      this.updateCerts(consumer);
  }

}


private updateCerts(Consumer consumer){

    // and so on and so forth
  

}