public class PMMLPredictorBolt extends BaseTickTupleAwareRichBolt
| Modifier and Type | Field and Description |
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protected static org.slf4j.Logger |
LOG |
| Constructor and Description |
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PMMLPredictorBolt(ModelRunnerFactory modelRunnerFactory,
ModelOutputs modelOutputs)
Creates an instance of
PMMLPredictorBolt that executes, for every tuple, the runner constructed with the ModelRunnerFactory specified in the parameter The PMMLPredictorBolt instantiated with this constructor declares the output fields as specified by the ModelOutputs parameter. |
| Modifier and Type | Method and Description |
|---|---|
void |
declareOutputFields(OutputFieldsDeclarer declarer)
Declare the output schema for all the streams of this topology.
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void |
prepare(Map<String,Object> topoConf,
TopologyContext context,
OutputCollector collector)
Called when a task for this component is initialized within a worker on the cluster.
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protected void |
process(Tuple input)
Process a single non-tick tuple of input.
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String |
toString() |
execute, onTickTuplecleanupgetComponentConfigurationclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitgetComponentConfigurationpublic PMMLPredictorBolt(ModelRunnerFactory modelRunnerFactory, ModelOutputs modelOutputs)
Creates an instance of PMMLPredictorBolt that executes, for every tuple, the runner constructed with the ModelRunnerFactory specified in the parameter The PMMLPredictorBolt instantiated with this constructor declares the output fields as specified by the ModelOutputs parameter.
public void prepare(Map<String,Object> topoConf, TopologyContext context, OutputCollector collector)
IBoltCalled when a task for this component is initialized within a worker on the cluster. It provides the bolt with the environment in which the bolt executes.
This includes the:
topoConf - The Storm configuration for this bolt. This is the configuration provided to the topology merged in with cluster configuration on this machine.context - This object can be used to get information about this task’s place within the topology, including the task id and component id of this task, input and output information, etc.collector - The collector is used to emit tuples from this bolt. Tuples can be emitted at any time, including the prepare and cleanup methods. The collector is thread-safe and should be saved as an instance variable of this bolt object.protected void process(Tuple input)
BaseTickTupleAwareRichBoltProcess a single non-tick tuple of input. Implementation needs to handle ack manually. More details on IBolt.execute(Tuple).
process in class BaseTickTupleAwareRichBoltinput - The input tuple to be processed.public void declareOutputFields(OutputFieldsDeclarer declarer)
IComponentDeclare the output schema for all the streams of this topology.
declarer - this is used to declare output stream ids, output fields, and whether or not each output stream is a direct streamCopyright © 2021 The Apache Software Foundation. All rights reserved.