RedisHealthCheck.java

package net.johnewart.gearman.engine.healthchecks;

import com.codahale.metrics.health.HealthCheck;
import redis.clients.jedis.Jedis;

public class RedisHealthCheck extends HealthCheck
{
    private final Jedis redisClient;

    public RedisHealthCheck(Jedis redisClient)
    {
        this.redisClient = redisClient;
    }

    @Override
    public Result check() throws Exception
    {
        try
        {
            redisClient.connect();

            if (redisClient.isConnected())
            {
                return Result.healthy();
            }
            else
            {
                return Result.unhealthy("Cannot connect to " + redisClient.toString());
            }
        }
        finally
        {
            redisClient.disconnect();
        }
    }
}