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backport of: Add rollover-creation-date setting to rolled over index (#…
…31144) (#31413) This commit introduces a new property to IndexMetaData called RolloverInfo. This object contains a map containing the aliases that were used to rollover the related index, which conditions were met, and at what time the rollover took place. much like the `index.creation_date`, it captures the approximate time that the index was rolled over to a new one. set version serialization check to 6.4
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server/src/main/java/org/elasticsearch/action/admin/indices/rollover/RolloverInfo.java
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| @@ -0,0 +1,134 @@ | ||
| /* | ||
| * Licensed to Elasticsearch under one or more contributor | ||
| * license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright | ||
| * ownership. Elasticsearch licenses this file to you under | ||
| * the Apache License, Version 2.0 (the "License"); you may | ||
| * not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
|
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| package org.elasticsearch.action.admin.indices.rollover; | ||
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| import org.elasticsearch.cluster.AbstractDiffable; | ||
| import org.elasticsearch.cluster.Diff; | ||
| import org.elasticsearch.common.ParseField; | ||
| import org.elasticsearch.common.Strings; | ||
| import org.elasticsearch.common.io.stream.StreamInput; | ||
| import org.elasticsearch.common.io.stream.StreamOutput; | ||
| import org.elasticsearch.common.io.stream.Writeable; | ||
| import org.elasticsearch.common.xcontent.ConstructingObjectParser; | ||
| import org.elasticsearch.common.xcontent.ToXContentFragment; | ||
| import org.elasticsearch.common.xcontent.XContentBuilder; | ||
| import org.elasticsearch.common.xcontent.XContentParser; | ||
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| import java.io.IOException; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
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| /** | ||
| * Class for holding Rollover related information within an index | ||
| */ | ||
| public class RolloverInfo extends AbstractDiffable<RolloverInfo> implements Writeable, ToXContentFragment { | ||
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| public static final ParseField CONDITION_FIELD = new ParseField("met_conditions"); | ||
| public static final ParseField TIME_FIELD = new ParseField("time"); | ||
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| @SuppressWarnings("unchecked") | ||
| public static ConstructingObjectParser<RolloverInfo, String> PARSER = new ConstructingObjectParser<>("rollover_info", false, | ||
| (a, alias) -> new RolloverInfo(alias, (List<Condition>) a[0], (Long) a[1])); | ||
| static { | ||
| PARSER.declareNamedObjects(ConstructingObjectParser.constructorArg(), | ||
| (p, c, n) -> p.namedObject(Condition.class, n, c), CONDITION_FIELD); | ||
| PARSER.declareLong(ConstructingObjectParser.constructorArg(), TIME_FIELD); | ||
| } | ||
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| private final String alias; | ||
| private final List<Condition> metConditions; | ||
| private final long time; | ||
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| public RolloverInfo(String alias, List<Condition> metConditions, long time) { | ||
| this.alias = alias; | ||
| this.metConditions = metConditions; | ||
| this.time = time; | ||
| } | ||
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| public RolloverInfo(StreamInput in) throws IOException { | ||
| this.alias = in.readString(); | ||
| this.time = in.readVLong(); | ||
| this.metConditions = in.readNamedWriteableList(Condition.class); | ||
| } | ||
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| public static RolloverInfo parse(XContentParser parser, String alias) { | ||
| return PARSER.apply(parser, alias); | ||
| } | ||
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| public String getAlias() { | ||
| return alias; | ||
| } | ||
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| public List<Condition> getMetConditions() { | ||
| return metConditions; | ||
| } | ||
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| public long getTime() { | ||
| return time; | ||
| } | ||
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| public static Diff<RolloverInfo> readDiffFrom(StreamInput in) throws IOException { | ||
| return readDiffFrom(RolloverInfo::new, in); | ||
| } | ||
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| out.writeString(alias); | ||
| out.writeVLong(time); | ||
| out.writeNamedWriteableList(metConditions); | ||
| } | ||
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException { | ||
| builder.startObject(alias); | ||
| builder.startObject(CONDITION_FIELD.getPreferredName()); | ||
| for (Condition condition : metConditions) { | ||
| condition.toXContent(builder, params); | ||
| } | ||
| builder.endObject(); | ||
| builder.field(TIME_FIELD.getPreferredName(), time); | ||
| builder.endObject(); | ||
| return builder; | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(alias, metConditions, time); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) { | ||
| if (obj == null) { | ||
| return false; | ||
| } | ||
| if (obj.getClass() != getClass()) { | ||
| return false; | ||
| } | ||
| RolloverInfo other = (RolloverInfo) obj; | ||
| return Objects.equals(alias, other.alias) && | ||
| Objects.equals(metConditions, other.metConditions) && | ||
| Objects.equals(time, other.time); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return Strings.toString(this); | ||
| } | ||
| } |
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