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Wrap ModulesService in new AppEngineServiceUtils

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ModulesService does not provide a great API. Specifically, it doesn't have a
way to get the hostname for a specific service; you have to get the hostname for
a specific version as well. This is very rarely what we want, as we publish new
versions every week and don't expect old ones to hang around for very long, so
a task should execute against whatever the live version is, not whatever the
current version was back when the task was enqueued (especially because that
version might be deleted by now).

This new and improved wrapper API removes the confusion and plays better with
dependency injection to boot. We can also fold in other methods having to do
with App Engine services, whereas ModulesService was quite limited in scope.

This also has the side effect of fixing ResaveEntityAction, which is
currently broken because the tasks it's enqueuing to execute up to 30 days in
the future have the version hard-coded into the hostname, and we typically
delete old versions sooner than that.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206173763
This commit is contained in:
mcilwain 2018-07-26 09:46:58 -07:00 • committed by jianglai
parent c87fde605c
commit 6e74ba0587
27 changed files with 422 additions and 286 deletions
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6
java/google/registry/monitoring/whitebox/BigQueryMetricsEnqueuer.java
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@ -16,12 +16,12 @@ package google.registry.monitoring.whitebox;
import static com.google.appengine.api.taskqueue.TaskOptions.Builder.withUrl;
import com.google.appengine.api.modules.ModulesService;
import com.google.appengine.api.taskqueue.Queue;
import com.google.appengine.api.taskqueue.TaskOptions;
import com.google.appengine.api.taskqueue.TransientFailureException;
import com.google.common.base.Supplier;
import com.google.common.flogger.FluentLogger;
import google.registry.util.AppEngineServiceUtils;
import java.util.Map.Entry;
import javax.inject.Inject;
import javax.inject.Named;
@ -38,7 +38,7 @@ public class BigQueryMetricsEnqueuer {
public static final String QUEUE_BIGQUERY_STREAMING_METRICS = "bigquery-streaming-metrics";
@Inject ModulesService modulesService;
@Inject AppEngineServiceUtils appEngineServiceUtils;
@Inject @Named("insertIdGenerator") Supplier<String> idGenerator;
@Inject @Named(QUEUE_BIGQUERY_STREAMING_METRICS) Queue queue;
@ -46,7 +46,7 @@ public class BigQueryMetricsEnqueuer {
public void export(BigQueryMetric metric) {
try {
String hostname = modulesService.getVersionHostname("backend", null);
String hostname = appEngineServiceUtils.getCurrentVersionHostname("backend");
TaskOptions opts =
withUrl(MetricsExportAction.PATH)
.header("Host", hostname)