private List<RedisNode> createSentinels() {
        List<RedisNode> sentinels = new ArrayList<RedisNode>();
        for (String node : StringUtils.commaDelimitedListToStringArray(sentinelNodes)) {
            try {
                String[] parts = StringUtils.split(node, ":");
                Assert.state(parts.length == 2, "Must be defined as 'host:port'");
                sentinels.add(new RedisNode(parts[0], Integer.valueOf(parts[1])));
            }
            catch (RuntimeException ex) {
                throw new IllegalStateException("Invalid redis sentinel "
                        + "property '" + node + "'", ex);
            }
        }
        return sentinels;
    }
Configuration for Redis Sink
@author Mark Pollack
extensions/spring-xd-extension-redis/src/main/java/org/springframework/xd/redis/RedisSinkConfiguration.java