Examples of tutorial.storm.trident.operations.Split

Package tutorial.storm.trident.operations

Examples of tutorial.storm.trident.operations.Split

tutorial.storm.trident.operations.Split
@author Enno Shioji (enno.shioji@peerindex.com)

         * access our {@link ElasticSearchState}.
         */
        TridentState elasticSearchState = topology.newStaticState(new ElasticSearchStateFactory());
        topology
                .newDRPCStream("search")
                .each(new Fields("args"), new Split(" "), new Fields("keywords")) // let's split the arguments
                .stateQuery(elasticSearchState, new Fields("keywords"), new TweetQuery(), new Fields("ids")) // and pass them as query parameters
                .project(new Fields("ids"));
        return topology.build();
    }

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        // Here is a more complex example
        topology
                .newDRPCStream("count_per_actors", drpc)
                .each(new Fields("args"), new Split(" "), new Fields("actor"))
                .groupBy(new Fields("actor"))
                .stateQuery(countState, new Fields("actor"), new MapGet(), new Fields("individual_count"))
                .each(new Fields("individual_count"), new FilterNull())
                .aggregate(new Fields("individual_count"), new Sum(), new Fields("count"));

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