io.siddhi.extension.execution.json

Class JsonTokenizerStreamProcessorFunction

java.lang.Object

io.siddhi.core.query.processor.stream.AbstractStreamProcessor<S>

io.siddhi.core.query.processor.stream.StreamProcessor<io.siddhi.core.util.snapshot.state.State>

io.siddhi.extension.execution.json.JsonTokenizerStreamProcessorFunction

All Implemented Interfaces:

io.siddhi.core.query.processor.Processor, io.siddhi.core.util.extension.holder.ExternalReferencedHolder

public class JsonTokenizerStreamProcessorFunction
extends io.siddhi.core.query.processor.stream.StreamProcessor<io.siddhi.core.util.snapshot.state.State>

This class provides implementation for tokenizing the given json based on a specific path.

Field Summary

Fields inherited from class io.siddhi.core.query.processor.stream.AbstractStreamProcessor

attributeExpressionExecutors, attributeExpressionLength, complexEventPopulater, inputDefinition, metaStreamEvent, nextProcessor, siddhiQueryContext, stateHolder, streamEventClonerHolder

Constructor Summary

Constructors

Constructor and Description
JsonTokenizerStreamProcessorFunction()

Method Summary

Modifier and Type	Method and Description
io.siddhi.core.query.processor.ProcessingMode	getProcessingMode()
List<io.siddhi.query.api.definition.Attribute>	getReturnAttributes()
protected io.siddhi.core.util.snapshot.state.StateFactory<io.siddhi.core.util.snapshot.state.State>	init(io.siddhi.core.event.stream.MetaStreamEvent metaStreamEvent, io.siddhi.query.api.definition.AbstractDefinition abstractDefinition, io.siddhi.core.executor.ExpressionExecutor[] expressionExecutors, io.siddhi.core.util.config.ConfigReader configReader, io.siddhi.core.event.stream.holder.StreamEventClonerHolder streamEventClonerHolder, boolean outputExpectsExpiredEvents, boolean findToBeExecuted, io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext) The initialization method for StreamProcessor, which will be called before other methods and validate the all configuration and getting the initial values.
protected void	process(io.siddhi.core.event.ComplexEventChunk<io.siddhi.core.event.stream.StreamEvent> streamEventChunk, io.siddhi.core.query.processor.Processor nextProcessor, io.siddhi.core.event.stream.StreamEventCloner streamEventCloner, io.siddhi.core.event.stream.populater.ComplexEventPopulater complexEventPopulater, io.siddhi.core.util.snapshot.state.State state)
void	start() This will be called only once and this can be used to acquire required resources for the processing element.
void	stop() This will be called only once and this can be used to release the acquired resources for processing.

Methods inherited from class io.siddhi.core.query.processor.stream.StreamProcessor

processEventChunk

Methods inherited from class io.siddhi.core.query.processor.stream.AbstractStreamProcessor

constructStreamEventPopulater, getNextProcessor, initProcessor, isStateful, process, process, setNextProcessor, setStreamEventCloner, setToLast

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JsonTokenizerStreamProcessorFunction

public JsonTokenizerStreamProcessorFunction()

Method Detail

process

protected void process(io.siddhi.core.event.ComplexEventChunk<io.siddhi.core.event.stream.StreamEvent> streamEventChunk,
                       io.siddhi.core.query.processor.Processor nextProcessor,
                       io.siddhi.core.event.stream.StreamEventCloner streamEventCloner,
                       io.siddhi.core.event.stream.populater.ComplexEventPopulater complexEventPopulater,
                       io.siddhi.core.util.snapshot.state.State state)

Specified by:

process in class io.siddhi.core.query.processor.stream.StreamProcessor<io.siddhi.core.util.snapshot.state.State>

init

protected io.siddhi.core.util.snapshot.state.StateFactory<io.siddhi.core.util.snapshot.state.State> init(io.siddhi.core.event.stream.MetaStreamEvent metaStreamEvent,
                                                                                                         io.siddhi.query.api.definition.AbstractDefinition abstractDefinition,
                                                                                                         io.siddhi.core.executor.ExpressionExecutor[] expressionExecutors,
                                                                                                         io.siddhi.core.util.config.ConfigReader configReader,
                                                                                                         io.siddhi.core.event.stream.holder.StreamEventClonerHolder streamEventClonerHolder,
                                                                                                         boolean outputExpectsExpiredEvents,
                                                                                                         boolean findToBeExecuted,
                                                                                                         io.siddhi.core.config.SiddhiQueryContext siddhiQueryContext)

The initialization method for StreamProcessor, which will be called before other methods and validate the all configuration and getting the initial values.

Specified by:

init in class io.siddhi.core.query.processor.stream.AbstractStreamProcessor<io.siddhi.core.util.snapshot.state.State>

Parameters:

metaStreamEvent - the stream event meta

abstractDefinition - the incoming stream definition

expressionExecutors - the executors for the function parameters

configReader - this hold the Stream Processor configuration reader.

streamEventClonerHolder - streamEventCloner Holder

outputExpectsExpiredEvents - whether output can be expired events

findToBeExecuted - find will be executed

siddhiQueryContext - current siddhi query context

start

public void start()

This will be called only once and this can be used to acquire required resources for the processing element. This will be called after initializing the system and before starting to process the events.

stop

public void stop()

This will be called only once and this can be used to release the acquired resources for processing. This will be called before shutting down the system.

getReturnAttributes

public List<io.siddhi.query.api.definition.Attribute> getReturnAttributes()

Specified by:

getReturnAttributes in class io.siddhi.core.query.processor.stream.AbstractStreamProcessor<io.siddhi.core.util.snapshot.state.State>

getProcessingMode

public io.siddhi.core.query.processor.ProcessingMode getProcessingMode()

Specified by:

getProcessingMode in class io.siddhi.core.query.processor.stream.AbstractStreamProcessor<io.siddhi.core.util.snapshot.state.State>