Jedis Cache implementation without JedisPool/commons-pool2-2.0 - connection

Question

How to implement Jedis without JedisPool/commons-pool2-2.0 because still we are using jdk 1.5(commons-pool2-2.0 does not support JDK 1.5)
How to implement a thread-safe connection pooling?

Answer 1

I'm not sure about Jedis compatibility with Java 5. You can create your own pooling based on the older commons-pool 1.6 library. You do not need to have commons-pool2 on your class path to run jedis. I used Jedis 2.7.3 and commons-pool 1.6 to validate the solution approach.
Find the example code attached:
import org.apache.commons.pool.ObjectPool;
import org.apache.commons.pool.PoolableObjectFactory;
import org.apache.commons.pool.impl.GenericObjectPool;
import redis.clients.jedis.Jedis;
public class JedisWithOwnPooling {
public static void main(String[] args) throws Exception {
ObjectPool<Jedis> pool = new GenericObjectPool(new JedisFactory("localhost"));
Jedis j = pool.borrowObject();
System.out.println(j.ping());
pool.returnObject(j);
pool.close();
}
private static class JedisFactory implements PoolableObjectFactory<Jedis> {
private String host;
/**
* Add fields as you need. That's only an example.
*/
public JedisFactory(String host) {
this.host = host;
}
#Override
public Jedis makeObject() throws Exception {
return new Jedis(host);
}
#Override
public void destroyObject(Jedis jedis) throws Exception {
jedis.close();
}
#Override
public boolean validateObject(Jedis jedis) {
return jedis.isConnected();
}
#Override
public void activateObject(Jedis jedis) throws Exception {
if (!jedis.isConnected()) {
jedis.connect();
}
}
#Override
public void passivateObject(Jedis jedis) throws Exception {
}
}
}