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a4f85c33c0
Our goal is to be able to address every Action by looking at the class itself, and to make it clearer at a glance what you need to access the Action's endpoint Currently, we can know from the @Action annotation: - the endpoint path - the Method needed - the authentication level needed This CL adds the service where the Action is hosted, which also translates to the URL. NOTE - currently we don't have any Action hosted on multiple services. I don't think we will ever need it (since they do the same thing no matter which service they are on, so why host it twice?), but if we do we'll have to update the code to allow it. The next step after this is to make sure all the @Parameters are defined on the Action itself, and then we will be able to craft access to the endpoint programatically (or at least verify at run-time we crafted a correct URL) ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=229375735
88 lines
3.7 KiB
Java
88 lines
3.7 KiB
Java
// Copyright 2017 The Nomulus Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.backup;
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import static com.google.appengine.api.taskqueue.QueueFactory.getQueue;
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import static com.google.appengine.api.taskqueue.TaskOptions.Builder.withUrl;
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import static google.registry.backup.ExportCommitLogDiffAction.LOWER_CHECKPOINT_TIME_PARAM;
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import static google.registry.backup.ExportCommitLogDiffAction.UPPER_CHECKPOINT_TIME_PARAM;
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import static google.registry.model.ofy.ObjectifyService.ofy;
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import static google.registry.util.DateTimeUtils.isBeforeOrAt;
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import com.google.common.flogger.FluentLogger;
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import google.registry.model.ofy.CommitLogCheckpoint;
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import google.registry.model.ofy.CommitLogCheckpointRoot;
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import google.registry.request.Action;
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import google.registry.request.auth.Auth;
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import google.registry.util.Clock;
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import google.registry.util.TaskQueueUtils;
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import javax.inject.Inject;
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import org.joda.time.DateTime;
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/**
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* Action that saves commit log checkpoints to Datastore and kicks off a diff export task.
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*
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* <p>We separate computing and saving the checkpoint from exporting it because the export to GCS is
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* retryable but should not require the computation of a new checkpoint. Saving the checkpoint and
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* enqueuing the export task are done transactionally, so any checkpoint that is saved will be
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* exported to GCS very soon.
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*
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* <p>This action's supported method is GET rather than POST because it gets invoked via cron.
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*/
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@Action(
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service = Action.Service.BACKEND,
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path = "/_dr/cron/commitLogCheckpoint",
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method = Action.Method.GET,
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automaticallyPrintOk = true,
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auth = Auth.AUTH_INTERNAL_ONLY)
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public final class CommitLogCheckpointAction implements Runnable {
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private static final FluentLogger logger = FluentLogger.forEnclosingClass();
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private static final String QUEUE_NAME = "export-commits";
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@Inject Clock clock;
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@Inject CommitLogCheckpointStrategy strategy;
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@Inject TaskQueueUtils taskQueueUtils;
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@Inject CommitLogCheckpointAction() {}
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@Override
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public void run() {
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final CommitLogCheckpoint checkpoint = strategy.computeCheckpoint();
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logger.atInfo().log(
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"Generated candidate checkpoint for time: %s", checkpoint.getCheckpointTime());
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ofy()
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.transact(
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() -> {
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DateTime lastWrittenTime = CommitLogCheckpointRoot.loadRoot().getLastWrittenTime();
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if (isBeforeOrAt(checkpoint.getCheckpointTime(), lastWrittenTime)) {
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logger.atInfo().log(
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"Newer checkpoint already written at time: %s", lastWrittenTime);
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return;
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}
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ofy()
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.saveWithoutBackup()
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.entities(
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checkpoint, CommitLogCheckpointRoot.create(checkpoint.getCheckpointTime()));
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// Enqueue a diff task between previous and current checkpoints.
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taskQueueUtils.enqueue(
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getQueue(QUEUE_NAME),
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withUrl(ExportCommitLogDiffAction.PATH)
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.param(LOWER_CHECKPOINT_TIME_PARAM, lastWrittenTime.toString())
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.param(
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UPPER_CHECKPOINT_TIME_PARAM, checkpoint.getCheckpointTime().toString()));
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});
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}
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}
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