Class EsPercolateBolt
java.lang.Object
org.apache.storm.topology.base.BaseComponent
org.apache.storm.topology.base.BaseRichBolt
org.apache.storm.topology.base.BaseTickTupleAwareRichBolt
org.apache.storm.elasticsearch.bolt.AbstractEsBolt
org.apache.storm.elasticsearch.bolt.EsPercolateBolt
- All Implemented Interfaces:
Serializable
,IBolt
,IComponent
,IRichBolt
Basic bolt for retrieve matched percolate queries.
- See Also:
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Field Summary
Fields inherited from class org.apache.storm.elasticsearch.bolt.AbstractEsBolt
client, collector, objectMapper
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Constructor Summary
ConstructorDescriptionEsPercolateBolt
(EsConfig esConfig) EsPercolateBolt constructor.EsPercolateBolt
(EsConfig esConfig, EsTupleMapper tupleMapper) EsPercolateBolt constructor. -
Method Summary
Modifier and TypeMethodDescriptionvoid
declareOutputFields
(OutputFieldsDeclarer outputFieldsDeclarer) Declare the output schema for all the streams of this topology.void
prepare
(Map<String, Object> map, TopologyContext topologyContext, OutputCollector outputCollector) Called when a task for this component is initialized within a worker on the cluster.void
Process a single non-tick tuple of input.Methods inherited from class org.apache.storm.topology.base.BaseTickTupleAwareRichBolt
execute, onTickTuple
Methods inherited from class org.apache.storm.topology.base.BaseRichBolt
cleanup
Methods inherited from class org.apache.storm.topology.base.BaseComponent
getComponentConfiguration
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.storm.topology.IComponent
getComponentConfiguration
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Constructor Details
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EsPercolateBolt
EsPercolateBolt constructor.- Parameters:
esConfig
- Elasticsearch configuration containing node addressesEsConfig
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EsPercolateBolt
EsPercolateBolt constructor.- Parameters:
esConfig
- Elasticsearch configuration containing node addresses and cluster nameEsConfig
tupleMapper
- Tuple to ES document mapperEsTupleMapper
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Method Details
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prepare
public void prepare(Map<String, Object> map, TopologyContext topologyContext, OutputCollector outputCollector) Description copied from interface:IBolt
Called 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:
- Specified by:
prepare
in interfaceIBolt
- Overrides:
prepare
in classAbstractEsBolt
- Parameters:
map
- The Storm configuration for this bolt. This is the configuration provided to the topology merged in with cluster configuration on this machine.topologyContext
- 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.outputCollector
- 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.
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process
Process a single non-tick tuple of input. Implementation needs to handle ack manually. More details onIBolt.execute(Tuple)
. Tuple should have relevant fields (source, index, type) for storeMapper to extract ES document.
If there exists non-empty percolate response, EsPercolateBolt will emit tuple with original source and Percolate.Match for each Percolate.Match in PercolateResponse.- Specified by:
process
in classBaseTickTupleAwareRichBolt
- Parameters:
tuple
- The input tuple to be processed.
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declareOutputFields
Description copied from interface:IComponent
Declare the output schema for all the streams of this topology.- Specified by:
declareOutputFields
in interfaceIComponent
- Overrides:
declareOutputFields
in classAbstractEsBolt
- Parameters:
outputFieldsDeclarer
- this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream
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