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Example 1 with MongoInsertBolt

use of org.apache.storm.mongodb.bolt.MongoInsertBolt in project storm by apache.

the class InsertWordCount method main.

public static void main(String[] args) throws Exception {
    Config config = new Config();
    String url = TEST_MONGODB_URL;
    String collectionName = TEST_MONGODB_COLLECTION_NAME;
    if (args.length >= 2) {
        url = args[0];
        collectionName = args[1];
    }
    WordSpout spout = new WordSpout();
    WordCounter bolt = new WordCounter();
    MongoMapper mapper = new SimpleMongoMapper().withFields("word", "count");
    MongoInsertBolt insertBolt = new MongoInsertBolt(url, collectionName, mapper);
    // wordSpout ==> countBolt ==> MongoInsertBolt
    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout(WORD_SPOUT, spout, 1);
    builder.setBolt(COUNT_BOLT, bolt, 1).shuffleGrouping(WORD_SPOUT);
    builder.setBolt(INSERT_BOLT, insertBolt, 1).fieldsGrouping(COUNT_BOLT, new Fields("word"));
    if (args.length == 2) {
        try (LocalCluster cluster = new LocalCluster();
            LocalTopology topo = cluster.submitTopology("test", config, builder.createTopology())) {
            Thread.sleep(30000);
        }
        System.exit(0);
    } else if (args.length == 3) {
        StormSubmitter.submitTopology(args[2], config, builder.createTopology());
    } else {
        System.out.println("Usage: InsertWordCount <mongodb url> <mongodb collection> [topology name]");
    }
}
Also used : LocalCluster(org.apache.storm.LocalCluster) SimpleMongoMapper(org.apache.storm.mongodb.common.mapper.SimpleMongoMapper) MongoMapper(org.apache.storm.mongodb.common.mapper.MongoMapper) Fields(org.apache.storm.tuple.Fields) TopologyBuilder(org.apache.storm.topology.TopologyBuilder) Config(org.apache.storm.Config) MongoInsertBolt(org.apache.storm.mongodb.bolt.MongoInsertBolt) SimpleMongoMapper(org.apache.storm.mongodb.common.mapper.SimpleMongoMapper) LocalTopology(org.apache.storm.LocalCluster.LocalTopology)

Aggregations

Config (org.apache.storm.Config)1 LocalCluster (org.apache.storm.LocalCluster)1 LocalTopology (org.apache.storm.LocalCluster.LocalTopology)1 MongoInsertBolt (org.apache.storm.mongodb.bolt.MongoInsertBolt)1 MongoMapper (org.apache.storm.mongodb.common.mapper.MongoMapper)1 SimpleMongoMapper (org.apache.storm.mongodb.common.mapper.SimpleMongoMapper)1 TopologyBuilder (org.apache.storm.topology.TopologyBuilder)1 Fields (org.apache.storm.tuple.Fields)1