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/**
 * Copyright (c) 2013-2021 Nikita Koksharov
 *
 * Licensed 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 com.github.lontime.shaded.org.redisson;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;

import com.github.lontime.shaded.org.redisson.api.MapOptions;
import com.github.lontime.shaded.org.redisson.api.RFuture;
import com.github.lontime.shaded.org.redisson.api.RQueue;
import com.github.lontime.shaded.org.redisson.command.CommandAsyncExecutor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 * @author Nikita Koksharov
 *
 */
public class MapWriteBehindTask {

    private static final Logger log = LoggerFactory.getLogger(MapWriteBehindTask.class);
    
    private final AtomicBoolean isStarted = new AtomicBoolean();
    private final RQueue writeBehindTasks;
    private final CommandAsyncExecutor commandExecutor;
    private final MapOptions options;
    
    public MapWriteBehindTask(String name, CommandAsyncExecutor commandExecutor, MapOptions options) {
        super();
        this.commandExecutor = commandExecutor;
        this.options = (MapOptions) options;
        String queueName = RedissonObject.suffixName(name, "write-behind-queue");
        this.writeBehindTasks = new RedissonQueue<>(commandExecutor, queueName, null);
    }

    public void start() {
        if (!isStarted.compareAndSet(false, true)) {
            return;
        }

        enqueueTask();
    }

    private void pollTask(Map addedMap, List