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Make Registrar load methods return Optionals instead of Nullables

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This makes the code more understandable from callsites, and also forces
users of this function to deal with the situation where the registrar
with a given client ID might not be present (it was previously silently
NPEing from some of the callsites).

This also adds a test helper method loadRegistrar(clientId) that retains
the old functionality for terseness in tests. It also fixes some instances
of using the load method with the wrong cachedness -- some uses in high-
traffic situations (WHOIS) that should have caching, but also low-traffic
reporting that don't benefit from caching so might as well always be
current.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=162990468
This commit is contained in:
mcilwain 2017-07-24 14:43:20 -07:00 • committed by Ben McIlwain
parent 84fdeebc2f
commit d536cef20f
81 changed files with 707 additions and 602 deletions
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8
java/google/registry/tools/DeleteCreditCommand.java
View file

@ -16,6 +16,7 @@ package google.registry.tools;
import static com.google.common.base.Preconditions.checkNotNull;
import static google.registry.model.ofy.ObjectifyService.ofy;
import static google.registry.util.PreconditionsUtils.checkArgumentPresent;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;
@ -31,7 +32,7 @@ final class DeleteCreditCommand extends MutatingCommand {
names = "--registrar",
description = "Client ID of the registrar owning the credit to delete",
required = true)
private String registrarId;
private String clientId;
@Parameter(
names = "--credit_id",
@ -42,13 +43,14 @@ final class DeleteCreditCommand extends MutatingCommand {
@Override
protected void init() throws Exception {
Registrar registrar =
checkNotNull(Registrar.loadByClientId(registrarId), "Registrar %s not found", registrarId);
checkArgumentPresent(
Registrar.loadByClientId(clientId), "Registrar %s not found", clientId);
RegistrarCredit credit = ofy().load()
.type(RegistrarCredit.class)
.parent(registrar)
.id(creditId)
.now();
checkNotNull(credit, "Registrar credit for %s with ID %s not found", registrarId, creditId);
checkNotNull(credit, "Registrar credit for %s with ID %s not found", clientId, creditId);
stageEntityChange(credit, null);
for (RegistrarCreditBalance balance :