mirror of
https://github.com/google/nomulus.git
synced 2025-04-30 12:07:51 +02:00
c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
86 lines
3.6 KiB
Java
86 lines
3.6 KiB
Java
// Copyright 2016 The Domain Registry 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 static google.registry.util.FormattingLogger.getLoggerForCallerClass;
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import com.googlecode.objectify.VoidWork;
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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.util.Clock;
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import google.registry.util.FormattingLogger;
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import google.registry.util.TaskEnqueuer;
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import org.joda.time.DateTime;
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import javax.inject.Inject;
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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
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* is retryable but should not require the computation of a new checkpoint. Saving the checkpoint
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* and 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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path = "/_dr/cron/commitLogCheckpoint",
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method = Action.Method.GET,
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automaticallyPrintOk = true)
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public final class CommitLogCheckpointAction implements Runnable {
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private static final FormattingLogger logger = getLoggerForCallerClass();
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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 TaskEnqueuer taskEnqueuer;
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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.info("Generated candidate checkpoint for time " + checkpoint.getCheckpointTime());
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ofy().transact(new VoidWork() {
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@Override
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public void vrun() {
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DateTime lastWrittenTime = CommitLogCheckpointRoot.loadRoot().getLastWrittenTime();
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if (isBeforeOrAt(checkpoint.getCheckpointTime(), lastWrittenTime)) {
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logger.info("Newer checkpoint already written at time: " + lastWrittenTime);
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return;
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}
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ofy().saveWithoutBackup().entities(
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checkpoint,
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CommitLogCheckpointRoot.create(checkpoint.getCheckpointTime()));
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// Enqueue a diff task between previous and current checkpoints.
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taskEnqueuer.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(UPPER_CHECKPOINT_TIME_PARAM, checkpoint.getCheckpointTime().toString()));
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}});
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}
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}
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