tweet store, analysis

https://github.com/gschmutz

https://github.com/richfaces4/tweetstream/blob/master/tweetstream/src/main/java/org/richfaces/examples/tweetstream/dataserver/listeners/TweetStreamListener.java

https://github.com/0827moon/Adaptive-Crawler/blob/master/AdaptiveCrawler_Correlation/src/crawler/DataStream.java

http://docs.aws.amazon.com/gettingstarted/latest/emr/getting-started-emr-sentiment-customize-mapper.html