org.elasticsearch.action.admin.indices.rollover.Condition Maven / Gradle / Ivy
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Elasticsearch subproject :server
/*
* 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.
*/
package org.elasticsearch.action.admin.indices.rollover;
import org.elasticsearch.Version;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.io.stream.NamedWriteable;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.ObjectParser;
import java.util.Set;
/**
* Base class for rollover request conditions
*/
public abstract class Condition implements NamedWriteable {
public static ObjectParser, Void> PARSER = new ObjectParser<>("conditions", null);
static {
PARSER.declareString((conditions, s) ->
conditions.add(new MaxAgeCondition(TimeValue.parseTimeValue(s, MaxAgeCondition.NAME))),
new ParseField(MaxAgeCondition.NAME));
PARSER.declareLong((conditions, value) ->
conditions.add(new MaxDocsCondition(value)), new ParseField(MaxDocsCondition.NAME));
PARSER.declareString((conditions, s) ->
conditions.add(new MaxSizeCondition(ByteSizeValue.parseBytesSizeValue(s, MaxSizeCondition.NAME))),
new ParseField(MaxSizeCondition.NAME));
}
protected T value;
protected final String name;
protected Condition(String name) {
this.name = name;
}
public abstract Result evaluate(Stats stats);
/**
* Checks if this condition is available in a specific version.
* This makes sure BWC when introducing a new condition which is not recognized by older versions.
*/
boolean includedInVersion(Version version) {
return true;
}
@Override
public final String toString() {
return "[" + name + ": " + value + "]";
}
/**
* Holder for index stats used to evaluate conditions
*/
public static class Stats {
public final long numDocs;
public final long indexCreated;
public final ByteSizeValue indexSize;
public Stats(long numDocs, long indexCreated, ByteSizeValue indexSize) {
this.numDocs = numDocs;
this.indexCreated = indexCreated;
this.indexSize = indexSize;
}
}
/**
* Holder for evaluated condition result
*/
public static class Result {
public final Condition condition;
public final boolean matched;
protected Result(Condition condition, boolean matched) {
this.condition = condition;
this.matched = matched;
}
}
}