}
public static LinearDRPCTopologyBuilder construct() {
LinearDRPCTopologyBuilder builder = new LinearDRPCTopologyBuilder(TOPOLOGY_NAME);
builder.addBolt(new GetTweeters(), 1);
builder.addBolt(new GetFollowers(), 1)
.shuffleGrouping();
builder.addBolt(new PartialUniquer(), 1)
.fieldsGrouping(new Fields("id", "follower"));
builder.addBolt(new CountAggregator(), 1)
.fieldsGrouping(new Fields("id"));