mirror of
https://github.com/google/nomulus.git
synced 2025-05-05 06:27:51 +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.
91 lines
3 KiB
Java
91 lines
3 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.model.ofy;
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import static google.registry.util.CollectionUtils.nullToEmptyImmutableCopy;
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import static org.joda.time.DateTimeZone.UTC;
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import com.google.common.collect.ImmutableSet;
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import com.googlecode.objectify.Key;
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import com.googlecode.objectify.annotation.Entity;
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import com.googlecode.objectify.annotation.Id;
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import com.googlecode.objectify.annotation.Parent;
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import google.registry.model.ImmutableObject;
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import google.registry.model.annotations.NotBackedUp;
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import google.registry.model.annotations.NotBackedUp.Reason;
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import org.joda.time.DateTime;
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import java.util.LinkedHashSet;
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import java.util.Set;
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/**
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* Archived datastore transaction that can be replayed.
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*
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* <p>Entities of this kind are entity group sharded using a {@link CommitLogBucket} parent. Each
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* object that was saved during this transaction is stored in a {@link CommitLogMutation} child
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* entity.
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*/
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@Entity
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@NotBackedUp(reason = Reason.COMMIT_LOGS)
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public class CommitLogManifest extends ImmutableObject {
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/** Commit log manifests are parented on a random bucket. */
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@Parent
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Key<CommitLogBucket> parent;
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/**
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* The commit time (in millis since the epoch).
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*
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* <p>This will be unique among siblings sharing the same parent {@link CommitLogBucket}.
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*/
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@Id
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long commitTime;
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/** Keys that were deleted in this commit. (Saves are recorded in child entities.) */
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Set<Key<?>> deletions = new LinkedHashSet<>();
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public DateTime getCommitTime() {
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return new DateTime(commitTime, UTC);
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}
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public int getBucketId() {
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return (int) parent.getId();
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}
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public ImmutableSet<Key<?>> getDeletions() {
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return nullToEmptyImmutableCopy(deletions);
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}
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public static CommitLogManifest create(
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Key<CommitLogBucket> parent, DateTime commitTime, Set<Key<?>> deletions) {
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CommitLogManifest instance = new CommitLogManifest();
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instance.parent = parent;
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instance.commitTime = commitTime.getMillis();
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instance.deletions = nullToEmptyImmutableCopy(deletions);
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return instance;
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}
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public static Key<CommitLogManifest> createKey(Key<CommitLogBucket> parent, DateTime commitTime) {
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return Key.create(parent, CommitLogManifest.class, commitTime.getMillis());
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}
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/** Returns the commit time encoded into a CommitLogManifest key. */
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public static DateTime extractCommitTime(Key<CommitLogManifest> manifestKey) {
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return new DateTime(manifestKey.getId(), UTC);
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}
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}
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