Package storm.trident.operation

Examples of storm.trident.operation.Aggregator

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            throw new IllegalArgumentException("Output fields for chained aggregators must be distinct: " + allOutFields.toString());
        }
       
        Fields inFields = new Fields(new ArrayList<String>(allInFields));
        Fields outFields = new Fields(allOutFields);
        Aggregator combined = new ChainedAggregatorImpl(aggs, inputFields, new ComboList.Factory(outSizes));
       
        if(_type!=AggType.FULL) {
            _stream = _stream.partitionAggregate(inFields, combined, outFields);
        }
        if(_type!=AggType.PARTITION) {
            _stream = _globalScheme.aggPartition(_stream);
            BatchToPartition singleEmit = _globalScheme.singleEmitPartitioner();
            Aggregator toAgg = combined;
            if(singleEmit!=null) {
                toAgg = new SingleEmitAggregator(combined, singleEmit);
            }
            // this assumes that inFields and outFields are the same for combineragg
            // assumption also made above
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        return new GroupedStream(s, _groupFields);
    }

    @Override
    public IAggregatableStream partitionAggregate(Fields inputFields, Aggregator agg, Fields functionFields) {
        Aggregator groupedAgg = new GroupedAggregator(agg, _groupFields, inputFields, functionFields.size());
        Fields allInFields = TridentUtils.fieldsUnion(_groupFields, inputFields);
        Fields allOutFields = TridentUtils.fieldsConcat(_groupFields, functionFields);
        Stream s = _stream.partitionAggregate(allInFields, groupedAgg, allOutFields);
        return new GroupedStream(s, _groupFields);
    }
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        return new GroupedStream(s, _groupFields);
    }

    @Override
    public IAggregatableStream partitionAggregate(Fields inputFields, Aggregator agg, Fields functionFields) {
        Aggregator groupedAgg = new GroupedAggregator(agg, _groupFields, inputFields, functionFields.size());
        Fields allInFields = TridentUtils.fieldsUnion(_groupFields, inputFields);
        Fields allOutFields = TridentUtils.fieldsConcat(_groupFields, functionFields);
        Stream s = _stream.partitionAggregate(allInFields, groupedAgg, allOutFields);
        return new GroupedStream(s, _groupFields);
    }
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            throw new IllegalArgumentException("Output fields for chained aggregators must be distinct: " + allOutFields.toString());
        }
       
        Fields inFields = new Fields(new ArrayList<String>(allInFields));
        Fields outFields = new Fields(allOutFields);
        Aggregator combined = new ChainedAggregatorImpl(aggs, inputFields, new ComboList.Factory(outSizes));
       
        if(_type!=AggType.FULL) {
            _stream = _stream.partitionAggregate(inFields, combined, outFields);
        }
        if(_type!=AggType.PARTITION) {
            _stream = _globalScheme.aggPartition(_stream);
            BatchToPartition singleEmit = _globalScheme.singleEmitPartitioner();
            Aggregator toAgg = combined;
            if(singleEmit!=null) {
                toAgg = new SingleEmitAggregator(combined, singleEmit);
            }
            // this assumes that inFields and outFields are the same for combineragg
            // assumption also made above
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Related Classes of storm.trident.operation.Aggregator

  • storm.trident.fluent.ChainedAggregatorDeclarer
  • storm.trident.fluent.GroupedStream
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