devutility.external.redis.queue.list.JedisPoolListQueueConsumer Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of devutility.external.redis Show documentation

Some utilities for Jedis

The newest version!

package devutility.external.redis.queue.list;

import java.io.IOException;

import devutility.external.redis.com.RedisQueueOption;
import devutility.external.redis.queue.JedisQueueConsumer;
import devutility.external.redis.queue.JedisQueueConsumerEvent;
import devutility.external.redis.utils.pool.JedisPoolUtil;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

/**
 * 
 * JedisPoolListQueueConsumer
 * 
 * @author: Aldwin Su
 * @version: 2019-09-25 20:24:25
 */
public final class JedisPoolListQueueConsumer extends JedisQueueConsumer {
	/**
	 * JedisPool object for connecting Redis server.
	 */
	private JedisPool jedisPool;

	/**
	 * Constructor
	 * @param jedisPool JedisPool object to get Jedis object.
	 * @param redisQueueOption RedisQueueOption object.
	 * @param consumerEvent Custom consumer event implementation.
	 */
	public JedisPoolListQueueConsumer(JedisPool jedisPool, RedisQueueOption redisQueueOption, JedisQueueConsumerEvent consumerEvent) {
		super(null, redisQueueOption, consumerEvent);
		this.jedisPool = jedisPool;
	}

	/**
	 * Constructor
	 * @param jedisPool JedisPool object to get Jedis object.
	 * @param key Redis key of queue.
	 * @param database Redis database.
	 * @param consumerEvent Custom consumer event implementation.
	 */
	public JedisPoolListQueueConsumer(JedisPool jedisPool, String key, int database, JedisQueueConsumerEvent consumerEvent) {
		this(jedisPool, new RedisQueueOption(key, database), consumerEvent);
	}

	@Override
	public void listen() throws Exception {
		while (isActive()) {
			Jedis jedis = JedisPoolUtil.jedis(jedisPool, redisQueueOption.getDatabase());

			try (JedisListQueueConsumer consumer = new JedisListQueueConsumer(jedis, redisQueueOption, consumerEvent)) {
				consumer.listen();
			} catch (Exception e) {
				if (!isExceptionRetryApproved(e)) {
					throw e;
				}

				log("System try to create a new connection and continue working due to the following information:", e);
			}
		}
	}

	@Override
	public void close() throws IOException {
		setActive(false);
	}
}