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/**
 * Copyright 2014 Nikita Koksharov, Nickolay Borbit
 *
 * 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 org.redisson.reactive;

import org.reactivestreams.Publisher;
import org.redisson.api.RQueueReactive;
import org.redisson.client.codec.Codec;
import org.redisson.client.protocol.RedisCommands;
import org.redisson.command.CommandReactiveExecutor;

/**
 * Distributed and concurrent implementation of {@link java.util.Queue}
 *
 * @author Nikita Koksharov
 *
 * @param  the type of elements held in this collection
 */
public class RedissonQueueReactive extends RedissonListReactive implements RQueueReactive {

    public RedissonQueueReactive(CommandReactiveExecutor commandExecutor, String name) {
        super(commandExecutor, name);
    }

    public RedissonQueueReactive(Codec codec, CommandReactiveExecutor commandExecutor, String name) {
        super(codec, commandExecutor, name);
    }

    @Override
    public Publisher offer(V e) {
        return add(e);
    }

    @Override
    public Publisher poll() {
        return commandExecutor.writeReactive(getName(), codec, RedisCommands.LPOP, getName());
    }

    @Override
    public Publisher peek() {
        return get(0);
    }

    @Override
    public Publisher pollLastAndOfferFirstTo(String queueName) {
        return commandExecutor.writeReactive(getName(), codec, RedisCommands.RPOPLPUSH, getName(), queueName);
    }

}




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