lock.java

public String acquire(String entityId) {
 String lock = UUID(); 
 for (int i = 0; i < attempts; i++) {
   if ("OK".equals(poolManager.withRedis(j -> j.set(entityId, lock, "NX", "EX", timeToLive)))) {
      //lock obtained if key entityId does not already exist with an expiry of timeToLive
       return entityId;
     }
      // error obtaining lock
    }
}

public void release(String lockKey)  {
  poolManager.withRedis(j -> j.del(lockKey));
}