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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
Download patch file Download diff file Expand all files Collapse all files

8
java/google/registry/ui/server/registrar/ConsoleUiAction.java
View file

@ -16,6 +16,7 @@ package google.registry.ui.server.registrar;
import static com.google.common.net.HttpHeaders.LOCATION;
import static com.google.common.net.HttpHeaders.X_FRAME_OPTIONS;
import static google.registry.util.PreconditionsUtils.checkArgumentPresent;
import static javax.servlet.http.HttpServletResponse.SC_FORBIDDEN;
import static javax.servlet.http.HttpServletResponse.SC_MOVED_TEMPORARILY;
import static javax.servlet.http.HttpServletResponse.SC_SERVICE_UNAVAILABLE;
@ -118,9 +119,12 @@ public final class ConsoleUiAction implements Runnable {
.render());
return;
}
Registrar registrar = Registrar.loadByClientIdCached(sessionUtils.getRegistrarClientId(req));
String clientId = sessionUtils.getRegistrarClientId(req);
Registrar registrar =
checkArgumentPresent(
Registrar.loadByClientIdCached(clientId), "Registrar %s does not exist", clientId);
data.put("xsrfToken", xsrfTokenManager.generateToken(user.getEmail()));
data.put("clientId", registrar.getClientId());
data.put("clientId", clientId);
data.put("showPaymentLink", registrar.getBillingMethod() == Registrar.BillingMethod.BRAINTREE);
String payload = TOFU_SUPPLIER.get()

14
java/google/registry/ui/server/registrar/SessionUtils.java
View file

@ -17,6 +17,7 @@ package google.registry.ui.server.registrar;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.base.Verify.verify;
import static google.registry.model.ofy.ObjectifyService.ofy;
import static google.registry.util.PreconditionsUtils.checkArgumentPresent;
import com.google.appengine.api.users.User;
import com.google.common.base.Optional;
@ -60,7 +61,9 @@ public class SessionUtils {
if (!checkRegistrarConsoleLogin(request, authResult.userAuthInfo().get().user())) {
throw new ForbiddenException("Not authorized to access Registrar Console");
}
return Registrar.loadByClientIdCached(getRegistrarClientId(request));
String clientId = getRegistrarClientId(request);
return checkArgumentPresent(
Registrar.loadByClientIdCached(clientId), "Registrar %s not found", clientId);
}
/**
@ -129,8 +132,7 @@ public class SessionUtils {
return Optional.absent();
}
String registrarClientId = contact.getParent().getName();
Optional<Registrar> result =
Optional.fromNullable(Registrar.loadByClientIdCached(registrarClientId));
Optional<Registrar> result = Registrar.loadByClientIdCached(registrarClientId);
if (!result.isPresent()) {
logger.severefmt(
"A contact record exists for non-existent registrar: %s.", Key.create(contact));
@ -140,12 +142,12 @@ public class SessionUtils {
/** @see #hasAccessToRegistrar(Registrar, String) */
private static boolean hasAccessToRegistrar(String clientId, final String gaeUserId) {
Registrar registrar = Registrar.loadByClientIdCached(clientId);
if (registrar == null) {
Optional<Registrar> registrar = Registrar.loadByClientIdCached(clientId);
if (!registrar.isPresent()) {
logger.warningfmt("Registrar '%s' disappeared from Datastore!", clientId);
return false;
}
return hasAccessToRegistrar(registrar, gaeUserId);
return hasAccessToRegistrar(registrar.get(), gaeUserId);
}
/** Returns {@code true} if {@code gaeUserId} is listed in contacts. */