Package backtype.storm.tuple

Examples of backtype.storm.tuple.Fields

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    @SuppressWarnings("serial")
    public static class InitBolt implements IBasicBolt {

        @Override
        public void declareOutputFields(OutputFieldsDeclarer declarer) {
            declarer.declare(new Fields("id", "url"));
        }
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            collector.emit(new Values(this.id, this.set.size()));
        }

        @Override
        public void declareOutputFields(OutputFieldsDeclarer declarer) {
            declarer.declare(new Fields("id", "partial-count"));
        }
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            this.collector.emit(new Values(this.id, this.count));
        }

        @Override
        public void declareOutputFields(OutputFieldsDeclarer declarer) {
            declarer.declare(new Fields("id", "reach"));
        }
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     * @param declarer
     */
    @Override
    public void declareOutputFields(OutputFieldsDeclarer declarer) {
        if (this.isDrpc) {
            declarer.declare(new Fields("id", this.emitIdFieldName, this.emitValueFieldName));
        } else {
            declarer.declare(new Fields(this.emitIdFieldName, this.emitValueFieldName));
        }
    }
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    public void cleanup() {

    }

    public void declareOutputFields(OutputFieldsDeclarer declarer) {
        declarer.declare(new Fields("word", "count"));
    }
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        // setup topology:
        // wordSpout ==> countBolt ==> cassandraBolt
        TopologyBuilder builder = new TopologyBuilder();

        builder.setSpout(WORD_SPOUT, wordSpout, 3);
        builder.setBolt(COUNT_BOLT, countBolt, 3).fieldsGrouping(WORD_SPOUT, new Fields("word"));
        builder.setBolt(CASSANDRA_BOLT, cassandraBolt, 3).shuffleGrouping(COUNT_BOLT);

        if (args.length == 0) {
            LocalCluster cluster = new LocalCluster();
            cluster.submitTopology("test", config, builder.createTopology());
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     * @param tuple
     * @return
     */
    @Override
    public Map<String, String> mapToColumns(Tuple tuple) {
        Fields fields = tuple.getFields();
        Map<String, String> columns = new HashMap<String, String>();
        for (int i = 0; i < fields.size(); i++) {
            String name = fields.get(i);
            Object value = tuple.getValueByField(name);
            columns.put(name, (value != null ? value.toString() : ""));
        }
        return columns;
    }
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     * @param tuple
     * @return map of columns to values
     */
    @Override
    public Map<String, String> mapToColumns(Tuple tuple) {
        Fields fields = tuple.getFields();
        Map<String, String> columns = new HashMap<String, String>();
        for (int i = 0; i < fields.size(); i++) {
            String name = fields.get(i);
            Boolean isRowField = Arrays.asList(this.rowKeyFields).contains(name);
            if (!isRowField) {
                Object value = tuple.getValueByField(name);
                columns.put(name, (value != null ? value.toString() : ""));
            }
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    public void fail(Object msgId) {

    }

    public void declareOutputFields(OutputFieldsDeclarer declarer) {
        declarer.declare(new Fields("word"));
    }
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        return tuple.getLongByField(incrementAmountField);
    }

    @Override
    public List<String> mapToColumnList(Tuple tuple) {
        Fields fields = tuple.getFields();
        List<String> result = new ArrayList<String>();
        Iterator<String> it = fields.iterator();
        while (it.hasNext()) {
            String fieldName = it.next();
            if (!fieldName.equals(rowKeyField) && !fieldName.equals(incrementAmountField))
                result.add(tuple.getValueByField(fieldName).toString());
        }
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Related Classes of backtype.storm.tuple.Fields

  • backtype.storm.clojure.ClojureBolt
  • backtype.storm.clojure.ClojureSpout
  • backtype.storm.clojure.RichShellBolt
  • backtype.storm.clojure.RichShellSpout
  • backtype.storm.drpc.DRPCSpout
  • backtype.storm.spout.RawMultiScheme
  • backtype.storm.spout.RawScheme
  • backtype.storm.testing.TestEventOrderCheckBolt
  • backtype.storm.testing.TestGlobalCount
  • com.alibaba.jstorm.batch.example.BatchMetaRebalance
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