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/*
 * Copyright (C) 2020 Graylog, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program. If not, see
 * .
 */
package org.graylog2.indexer.retention.strategies;

import org.graylog2.indexer.IndexSet;
import org.graylog2.indexer.retention.executors.CountBasedRetentionExecutor;
import org.graylog2.indexer.retention.executors.TimeBasedRetentionExecutor;
import org.graylog2.plugin.indexer.retention.RetentionStrategyConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jakarta.inject.Inject;

import java.util.List;
import java.util.Optional;

public class NoopRetentionStrategy extends AbstractIndexRetentionStrategy {
    public static final String NAME = "none";
    private static final Logger LOG = LoggerFactory.getLogger(NoopRetentionStrategy.class);

    @Inject
    public NoopRetentionStrategy(CountBasedRetentionExecutor countBasedRetentionExecutor,
                                 TimeBasedRetentionExecutor timeBasedRetentionExecutor) {
        super(countBasedRetentionExecutor, timeBasedRetentionExecutor);
    }

    @Override
    protected Optional getMaxNumberOfIndices(IndexSet indexSet) {
        return Optional.of(Integer.MAX_VALUE);
    }

    @Override
    protected void retain(List indexNames, IndexSet indexSet) {
        LOG.info("Not running any index retention. This is the no-op index rotation strategy.");
    }

    @Override
    public Class configurationClass() {
        return NoopRetentionStrategyConfig.class;
    }

    @Override
    public RetentionStrategyConfig defaultConfiguration() {
        return NoopRetentionStrategyConfig.createDefault();
    }
}