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72 lines
2.9 KiB
Java
72 lines
2.9 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.export;
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import static google.registry.export.CheckSnapshotAction.enqueuePollTask;
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import static google.registry.request.Action.Method.POST;
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import google.registry.config.RegistryConfig;
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import google.registry.request.Action;
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import google.registry.request.Response;
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import google.registry.util.Clock;
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import google.registry.util.FormattingLogger;
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import javax.inject.Inject;
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/**
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* Action to trigger a Datastore backup job that writes a snapshot to Google Cloud Storage.
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*
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* <p>This is the first step of a four step workflow for exporting snapshots, with each step calling
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* the next upon successful completion:
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*
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* <ol>
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* <li>The snapshot is exported to Google Cloud Storage (this action).
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* <li>The {@link CheckSnapshotAction} polls until the export is completed.
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* <li>The {@link LoadSnapshotAction} imports the data from GCS to BigQuery.
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* <li>The {@link UpdateSnapshotViewAction} updates the view in latest_snapshot.
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* </ol>
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*/
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@Action(path = ExportSnapshotAction.PATH, method = POST, automaticallyPrintOk = true)
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public class ExportSnapshotAction implements Runnable {
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/** Queue to use for enqueuing the task that will actually launch the backup. */
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static final String QUEUE = "export-snapshot"; // See queue.xml.
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static final String PATH = "/_dr/task/exportSnapshot"; // See web.xml.
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/** Prefix to use for naming all snapshots that are started by this servlet. */
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static final String SNAPSHOT_PREFIX = "auto_snapshot_";
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private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
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@Inject Clock clock;
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@Inject DatastoreBackupService backupService;
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@Inject Response response;
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@Inject
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ExportSnapshotAction() {}
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@Override
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public void run() {
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// Use a unique name for the snapshot so we can explicitly check its completion later.
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String snapshotName = SNAPSHOT_PREFIX + clock.nowUtc().toString("YYYYMMdd_HHmmss");
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backupService.launchNewBackup(
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QUEUE, snapshotName, RegistryConfig.getSnapshotsBucket(), ExportConstants.getBackupKinds());
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// Enqueue a poll task to monitor the backup and load reporting-related kinds into bigquery.
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enqueuePollTask(snapshotName, ExportConstants.getReportingKinds());
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String message = "Datastore backup started with name: " + snapshotName;
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logger.info(message);
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response.setPayload(message);
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}
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}
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