.newStream("tweets", spout)
.each(new Fields("str"), new ParseTweet(), new Fields("text", "content", "user"))
.each(new Fields("text", "content"), new TweetIdExtractor(), new Fields("tweetId"))
.project(new Fields("tweetId", "text"))
.each(new Fields("tweetId", "text"), new Print())
.partitionPersist(new ElasticSearchStateFactory(), new Fields("tweetId", "text"), new ElasticSearchStateUpdater());
/**
* Now we need a DRPC stream to query the state where the tweets are stored.
* To do that, as shown below, we need an implementation of {@link QueryFunction} to
* access our {@link ElasticSearchState}.