Switch from Guava Optionals to Java 8 Optionals

This was a surprisingly involved change. Some of the difficulties included
java.util.Optional purposely not being Serializable (so I had to move a
few Optionals in mapreduce classes to @Nullable) and having to add the Truth
Java8 extension library for assertion support.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171863777
This commit is contained in:
mcilwain 2017-10-11 13:09:26 -07:00 committed by jianglai
parent 184b2b56ac
commit c0f8da0c6e
581 changed files with 1325 additions and 932 deletions

View file

@ -16,7 +16,7 @@ package google.registry.util;
import com.google.appengine.api.datastore.Key;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import java.util.Optional;
/** Utility methods for working with the App Engine Datastore service. */
public class DatastoreServiceUtils {
@ -26,6 +26,6 @@ public class DatastoreServiceUtils {
/** Returns the name or id of a key, which may be a string or a long. */
public static Object getNameOrId(Key key) {
return Optional.<Object>fromNullable(key.getName()).or(key.getId());
return Optional.<Object>ofNullable(key.getName()).orElse(key.getId());
}
}