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Make loadByForeignKeyCached() return an Optional type

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Next up (and a much larger commit) will be giving loadByForeignKey() the same
treatment.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=225182377
This commit is contained in:
mcilwain 2018-12-12 07:36:57 -08:00 • committed by jianglai
parent 400994237c
commit 015c854a92
4 changed files with 18 additions and 21 deletions
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6
java/google/registry/whois/NameserverLookupByHostCommand.java
View file

@ -30,9 +30,7 @@ public class NameserverLookupByHostCommand extends DomainOrHostLookupCommand {
@Override
protected Optional<WhoisResponse> getResponse(InternetDomainName hostName, DateTime now) {
final HostResource hostResource =
loadByForeignKeyCached(HostResource.class, hostName.toString(), now);
return Optional.ofNullable(
hostResource == null ? null : new NameserverWhoisResponse(hostResource, now));
return loadByForeignKeyCached(HostResource.class, hostName.toString(), now)
.map(host -> new NameserverWhoisResponse(host, now));
}
}