Rename PricingEngine to PremiumPricingEngine

This properly reflects the fact that other, separate things will now
be responsible both for EAP and for per-TLD custom pricing.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=124558165

java/google/registry/model/pricing/PremiumPricingEngine.java

@@ -19,8 +19,13 @@ import com.google.common.base.Optional;
 import org.joda.money.Money;
 import org.joda.time.DateTime;
 
-/** A plugin interface for premium pricing engines. */
-public interface PricingEngine {
+/**
+ * A plugin interface for premium pricing engines.
+ *
+ * <p>A premium pricing engine is responsible solely for determining whether a given label is
+ * premium or not, and if it is, how much it should cost.
+ */
+public interface PremiumPricingEngine {
 
   /**
    * Returns the prices for the given fully qualified domain name at the given time.
@@ -31,9 +36,9 @@ public interface PricingEngine {
   public DomainPrices getDomainPrices(String fullyQualifiedDomainName, DateTime priceTime);
 
   /**
-   * A class containing information on prices for a specific domain name.
+   * A class containing information on premium prices for a specific domain name.
    *
-   * <p>Any implementation of PricingEngine is responsible for determining all of these.
+   * <p>Any implementation of PremiumPricingEngine is responsible for determining all of these.
    */
   public static class DomainPrices {
 
@@ -42,20 +47,17 @@ public interface PricingEngine {
     // create, renew, restore, and transfer.
     private Money createCost;
     private Money renewCost;
-    private Optional<Money> oneTimeFee;
     private Optional<String> feeClass;
 
     static DomainPrices create(
         boolean isPremium,
         Money createCost,
         Money renewCost,
-        Optional<Money> oneTimeFee,
         Optional<String> feeClass) {
       DomainPrices instance = new DomainPrices();
       instance.isPremium = isPremium;
       instance.createCost = createCost;
       instance.renewCost = renewCost;
-      instance.oneTimeFee = oneTimeFee;
       instance.feeClass = feeClass;
       return instance;
     }
@@ -75,15 +77,6 @@ public interface PricingEngine {
       return renewCost;
     }
 
-    /**
-     * Returns the one time fee to register a domain if there is one.
-     *
-     * <p>This is primarily used for EAP registration fees.
-     */
-    public Optional<Money> getOneTimeFee() {
-      return oneTimeFee;
-    }
-
     /** Returns the fee class of the cost (used for the Fee extension). */
     public Optional<String> getFeeClass() {
       return feeClass;

java/google/registry/model/pricing/StaticPremiumListPricingEngine.java

@@ -35,7 +35,7 @@ import org.joda.time.DateTime;
 import javax.inject.Inject;
 
 /** A premium list pricing engine that stores static pricing information in Datastore entities. */
-public final class StaticPremiumListPricingEngine implements PricingEngine {
+public final class StaticPremiumListPricingEngine implements PremiumPricingEngine {
 
   @Inject StaticPremiumListPricingEngine() {}
 
@@ -61,7 +61,6 @@ public final class StaticPremiumListPricingEngine implements PricingEngine {
         premiumPrice.isPresent(),
         premiumPrice.or(registry.getStandardCreateCost()),
         premiumPrice.or(registry.getStandardRenewCost(priceTime)),
-        Optional.<Money>absent(),
         Optional.<String>fromNullable(feeClass));
   }
 }

java/google/registry/model/registry/Registry.java

@@ -57,7 +57,7 @@ import google.registry.model.ImmutableObject;
 import google.registry.model.common.EntityGroupRoot;
 import google.registry.model.common.TimedTransitionProperty;
 import google.registry.model.common.TimedTransitionProperty.TimedTransition;
-import google.registry.model.pricing.PricingEngine;
+import google.registry.model.pricing.PremiumPricingEngine;
 import google.registry.model.pricing.StaticPremiumListPricingEngine;
 import google.registry.model.registry.label.PremiumList;
 import google.registry.model.registry.label.ReservedList;
@@ -533,7 +533,7 @@ public class Registry extends ImmutableObject implements Buildable {
     return claimsPeriodEnd;
   }
 
-  public String getPricingEngineClassName() {
+  public String getPremiumPricingEngineClassName() {
     return pricingEngineClassName;
   }
 
@@ -603,7 +603,8 @@ public class Registry extends ImmutableObject implements Buildable {
       return this;
     }
 
-    public Builder setPricingEngineClass(Class<? extends PricingEngine> pricingEngineClass) {
+    public Builder setPremiumPricingEngineClass(
+        Class<? extends PremiumPricingEngine> pricingEngineClass) {
       getInstance().pricingEngineClassName =
           checkArgumentNotNull(pricingEngineClass).getCanonicalName();
       return this;