io.github.aooohan.mq.core.DefaultRedisMqPublisher Maven / Gradle / Ivy

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/*
 *    Copyright 2023 [lihan [email protected]]
 *
 *    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 io.github.aooohan.mq.core;

import io.github.aooohan.mq.entity.MsgDeliver;
import io.github.aooohan.mq.serializer.RedisMqSerializer;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.stream.MapRecord;
import org.springframework.data.redis.connection.stream.ObjectRecord;
import org.springframework.data.redis.connection.stream.RecordId;
import org.springframework.data.redis.core.StringRedisTemplate;

import java.util.HashMap;
import java.util.Map;

/**
 * @author : lihan
 * @date : 2023/6/22 13:08
 */
public class DefaultRedisMqPublisher implements RedisMqPublisher {
    private final RedisMqSerializer redisMqSerializer;
    private final StringRedisTemplate redisTemplate;

    public DefaultRedisMqPublisher(RedisMqSerializer redisMqSerializer, RedisConnectionFactory redisConnectionFactory) {
        this(redisMqSerializer, new StringRedisTemplate(redisConnectionFactory));
    }

    public DefaultRedisMqPublisher(RedisMqSerializer redisMqSerializer, StringRedisTemplate redisMqTemplate) {
        this.redisMqSerializer = redisMqSerializer;
        this.redisTemplate = redisMqTemplate;
    }

    @Override
    public String publish(String topic, Object message) {
        MsgDeliver msgDeliver;
        if (message instanceof MsgDeliver) {
            msgDeliver = (MsgDeliver) message;
            msgDeliver.incrDeliveryCount();
        } else {
            String payload = null;
            try {
                payload = redisMqSerializer.serialize(message);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
            msgDeliver = new MsgDeliver(null, payload, "1");
        }
        Map map = msgDeliver.toRedisMsgBody();
        RecordId id = redisTemplate.opsForStream().add(MapRecord.create(topic, map));
        if (id == null) {
            return null;
        }
        return id.getValue();
    }
}