Package backtype.storm.tuple

Examples of backtype.storm.tuple.Values

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    @SuppressWarnings({ "unchecked", "rawtypes" })
    private void testCassandraMapState(TransactionType txType) throws Exception {
        FixedBatchSpout spout = new FixedBatchSpout(
                new Fields("sentence"), 3,
                new Values("the cow jumped over the moon"),
                new Values("the man went to the store and bought some candy"),
                new Values("four score and seven years ago"),
                new Values("how many apples can you eat"));
        spout.setCycle(false);

        TridentTopology topology = new TridentTopology();

        HashMap<String, Object> clientConfig = new HashMap<String, Object>();
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    private Values createEmptyValues() {
        ArrayList<Object> emptyValues = new ArrayList<Object>();
        for (int evc = 0; evc < this.numberOfOutputFields; evc++) {
            emptyValues.add("");
        }
        return new Values(emptyValues.toArray());
    }
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        clientConfig.put(StormCassandraConstants.CASSANDRA_HOST, "localhost:9160");
        clientConfig.put(StormCassandraConstants.CASSANDRA_KEYSPACE, Arrays.asList(new String [] {KEYSPACE}));
        client.start(clientConfig);

        Fields fields = new Fields("key1", "key2", "foo", "bar");
        Values values = new Values("key1val", "key2val", "fooval", "barval");
        Tuple tuple = new MockTuple(fields, values);

        client.writeTuple(tuple, tupleMapper);

        AstyanaxContext<Keyspace> context = newContext("localhost:9160", KEYSPACE);
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        clientConfig.put(StormCassandraConstants.CASSANDRA_HOST, "localhost:9160");
        clientConfig.put(StormCassandraConstants.CASSANDRA_KEYSPACE, Arrays.asList(new String [] {KEYSPACE}));
        client.start(clientConfig);
       
        Fields fields = new Fields("key1", "key2", "foo", "bar");
        Values values = new Values("key1val", "key2val", "fooval", "barval");
        TridentTuple tuple = newTridentTuple(fields, values);
       
        SimpleTridentTupleMapper tupleMapper = new SimpleTridentTupleMapper(KEYSPACE, fields);
       
        client.writeTuple(tuple, tupleMapper);
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        clientConfig.put(StormCassandraConstants.CASSANDRA_HOST, "localhost:9160");
        clientConfig.put(StormCassandraConstants.CASSANDRA_KEYSPACE, Arrays.asList(new String [] {KEYSPACE}));
        client.start(clientConfig);
       
        Fields fields = new Fields("rowkey", "a", "b", "value");
        Values values = new Values("my_row", "a", "a", "aa");
        TridentTuple tuple = newTridentTuple(fields, values);
       
        CompositeColumnTridentTupleMapper tupleMapper = new CompositeColumnTridentTupleMapper(KEYSPACE);
       
        client.writeTuple(tuple, tupleMapper);
       
        tuple = newTridentTuple(fields, new Values("my_row", "b", "b", "bb"));
        client.writeTuple(tuple, tupleMapper);
       
        tuple = newTridentTuple(fields, new Values("my_row", "a", "b", "ab"));
        client.writeTuple(tuple, tupleMapper);
       
        tuple = newTridentTuple(fields, new Values("my_row", "a", "c", "ac"));
        client.writeTuple(tuple, tupleMapper);
       
        tuple = newTridentTuple(fields, new Values("my_row", "a", "d", "ad"));
        client.writeTuple(tuple, tupleMapper);
       
        tuple = newTridentTuple(fields, new Values("my_row", "c", "c", "cc"));
        client.writeTuple(tuple, tupleMapper);
       
        tuple = newTridentTuple(fields, new Values("my_row", "d", "d", "dd"));
        client.writeTuple(tuple, tupleMapper);
       
       
        Map<SimpleComposite, String> map = client.lookup(tupleMapper, tuple, new SimpleComposite("a", "a"), new SimpleComposite("a", "c"), Equality.GREATER_THAN_EQUAL);
        dumpMap(map);
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    @Override
    public void execute(TridentTuple tuple, TridentCollector collector) {
        try {
            writeTuple(tuple);
            if (this.valueToEmit != null) {
                collector.emit(new Values(this.valueToEmit));
            }
        } catch (TupleMappingException e) {
            LOG.error("Skipping tuple: " + tuple, e);
        } catch (StormCassandraException e) {
            LOG.error("Failed to write tuple. Exception: " + e.getLocalizedMessage());
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        if ( key == null ) {
            return deserialize(value);
        }
        String keyString = StringScheme.deserializeString(key);
        String valueString = StringScheme.deserializeString(value);
        return new Values(ImmutableMap.of(keyString, valueString));
    }
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public class TridentKafkaTopology {

    private static StormTopology buildTopology() {
        Fields fields = new Fields("word", "count");
        FixedBatchSpout spout = new FixedBatchSpout(fields, 4,
                new Values("storm", "1"),
                new Values("trident", "1"),
                new Values("needs", "1"),
                new Values("javadoc", "1")
        );
        spout.setCycle(true);

        TridentTopology topology = new TridentTopology();
        Stream stream = topology.newStream("spout1", spout);
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public class BasicDRPCTopology {
  public static class ExclaimBolt extends BaseBasicBolt {
    @Override
    public void execute(Tuple tuple, BasicOutputCollector collector) {
      String input = tuple.getString(1);
      collector.emit(new Values(tuple.getValue(0), input + "!"));
    }
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      }
    }
  }

  public static StormTopology buildTopology(LocalDRPC drpc) {
    FixedBatchSpout spout = new FixedBatchSpout(new Fields("sentence"), 3, new Values("the cow jumped over the moon"),
        new Values("the man went to the store and bought some candy"), new Values("four score and seven years ago"),
        new Values("how many apples can you eat"), new Values("to be or not to be the person"));
    spout.setCycle(true);

    TridentTopology topology = new TridentTopology();
    TridentState wordCounts = topology.newStream("spout1", spout).parallelismHint(16).each(new Fields("sentence"),
        new Split(), new Fields("word")).groupBy(new Fields("word")).persistentAggregate(new MemoryMapState.Factory(),
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Related Classes of backtype.storm.tuple.Values

  • backtype.storm.coordination.CoordinatedBolt
  • backtype.storm.drpc.DRPCSpout
  • backtype.storm.drpc.JoinResult
  • backtype.storm.drpc.PrepareRequest
  • com.alibaba.jstorm.batch.example.BatchMetaRebalance
  • com.alibaba.jstorm.batch.example.BatchMetaSpout
  • com.alibaba.jstorm.batch.example.CountBolt
  • com.alibaba.jstorm.batch.example.TransformBolt
  • com.alipay.dw.jstorm.example.batch.SimpleSpout
  • com.alipay.dw.jstorm.example.drpc.ReachTopology$CountAggregator
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