Change second-level domain name to fully-qualified domain name

Second-level domain name isn't accurate because we support multi-part
TLDs, so standardize on the "fullyQualifiedDomainName" name that is
used throughout the code base.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=122693009

java/google/registry/model/domain/DomainBase.java

@@ -23,7 +23,7 @@ import static google.registry.util.CollectionUtils.nullToEmpty;
 import static google.registry.util.CollectionUtils.nullToEmptyImmutableCopy;
 import static google.registry.util.CollectionUtils.nullToEmptyImmutableSortedCopy;
 import static google.registry.util.CollectionUtils.union;
-import static google.registry.util.DomainNameUtils.getTldFromSld;
+import static google.registry.util.DomainNameUtils.getTldFromDomainName;
 import static google.registry.util.PreconditionsUtils.checkArgumentNotNull;
 
 import com.google.common.base.Function;
@@ -237,7 +237,7 @@ public abstract class DomainBase extends EppResource {
       checkArgumentNotNull(
           emptyToNull(instance.fullyQualifiedDomainName), "Missing fullyQualifiedDomainName");
       checkArgumentNotNull(instance.registrant, "Missing registrant");
-      instance.tld = getTldFromSld(instance.fullyQualifiedDomainName);
+      instance.tld = getTldFromDomainName(instance.fullyQualifiedDomainName);
       instance.allContacts = union(
               instance.getContacts(),
               DesignatedContact.create(REGISTRANT, instance.registrant.getLinked()));

java/google/registry/model/pricing/PricingEngine.java

@@ -23,9 +23,12 @@ import org.joda.time.DateTime;
 public interface PricingEngine {
 
   /**
-   * Returns the premium price for the given second-level domain name at the given time for the
-   * given registrar, or absent if the domain name isn't premium.
+   * Returns the premium price for the given domain name at the given time for the given registrar,
+   * or absent if the domain name isn't premium.
+   *
+   * <p>Note that fullyQualifiedDomainName must not include any subdomains.  It should be a single
+   * level above the TLD (which may be multi-part).
    */
   public Optional<Money> getPremiumPrice(
-      String secondLevelDomainName, DateTime priceTime, String clientIdentifier);
+      String fullyQualifiedDomainName, DateTime priceTime, String clientIdentifier);
 }

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

@@ -16,7 +16,7 @@ package google.registry.model.pricing;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.base.Preconditions.checkState;
-import static google.registry.util.DomainNameUtils.getTldFromSld;
+import static google.registry.util.DomainNameUtils.getTldFromDomainName;
 
 import com.google.common.base.Optional;
 import com.google.common.net.InternetDomainName;
@@ -36,10 +36,10 @@ public final class StaticPremiumListPricingEngine implements PricingEngine {
 
   @Override
   public Optional<Money> getPremiumPrice(
-      String secondLevelDomainName, DateTime priceTime, String clientIdentifier) {
+      String fullyQualifiedDomainName, DateTime priceTime, String clientIdentifier) {
     // Note that clientIdentifier and priceTime are not used for determining premium pricing for
     // static premium lists.
-    String tld = getTldFromSld(secondLevelDomainName);
+    String tld = getTldFromDomainName(fullyQualifiedDomainName);
     Registry registry = Registry.get(checkNotNull(tld, "tld"));
     if (registry.getPremiumList() == null) {
       return Optional.<Money>absent();
@@ -47,7 +47,7 @@ public final class StaticPremiumListPricingEngine implements PricingEngine {
     String listName = registry.getPremiumList().getName();
     Optional<PremiumList> premiumList = PremiumList.get(listName);
     checkState(premiumList.isPresent(), "Could not load premium list: %s", listName);
-    String label = InternetDomainName.from(secondLevelDomainName).parts().get(0);
+    String label = InternetDomainName.from(fullyQualifiedDomainName).parts().get(0);
     return premiumList.get().getPremiumPrice(label);
   }
 }

java/google/registry/model/registry/Registries.java

@@ -22,6 +22,7 @@ import static com.google.common.collect.Maps.filterValues;
 import static google.registry.model.common.EntityGroupRoot.getCrossTldKey;
 import static google.registry.model.ofy.ObjectifyService.ofy;
 import static google.registry.util.CacheUtils.memoizeWithShortExpiration;
+import static google.registry.util.PreconditionsUtils.checkArgumentNotNull;
 
 import com.google.common.base.Optional;
 import com.google.common.base.Supplier;
@@ -92,7 +93,7 @@ public final class Registries {
    *
    * <p><b>Note:</b> This routine will only work on names under TLDs for which this registry is
    * authoritative. To extract TLDs from domains (not hosts) that other registries control, use
-   * {@link google.registry.util.DomainNameUtils#getTldFromSld(String)
+   * {@link google.registry.util.DomainNameUtils#getTldFromDomainName(String)
    * DomainNameUtils#getTldFromDomainName}.
    *
    * @param domainName domain name or host name (but not TLD) under an authoritative TLD
@@ -114,7 +115,7 @@ public final class Registries {
    * match exists.
    */
   public static InternetDomainName findTldForNameOrThrow(InternetDomainName domainName) {
-    return checkNotNull(
+    return checkArgumentNotNull(
         findTldForName(domainName).orNull(),
         "Domain name is not under a recognized TLD: %s", domainName.toString());
   }

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

@@ -158,7 +158,10 @@ public class Registry extends ImmutableObject implements Buildable {
      */
     QUIET_PERIOD,
 
-    /** The steady state of a TLD in which all SLDs are available via first-come, first-serve. */
+    /**
+     * The steady state of a TLD in which all domain names are available via first-come,
+     * first-serve.
+     */
     GENERAL_AVAILABILITY,
 
     /** A "fake" state for use in predelegation testing. Acts like {@link #GENERAL_AVAILABILITY}. */