Package org.apache.flink.streaming.api.operators.python.embedded

Class EmbeddedPythonProcessOperator<IN,OUT>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator<OUT>

org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedPythonFunctionOperator<OUT>

org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedDataStreamPythonFunctionOperator<OUT>

org.apache.flink.streaming.api.operators.python.embedded.AbstractOneInputEmbeddedPythonFunctionOperator<IN,OUT>

org.apache.flink.streaming.api.operators.python.embedded.EmbeddedPythonProcessOperator<IN,OUT>

All Implemented Interfaces:

Serializable, CheckpointListener, ResultTypeQueryable<OUT>, BoundedOneInput, Input<IN>, KeyContext, KeyContextHandler, OneInputStreamOperator<IN,OUT>, DataStreamPythonFunctionOperator<OUT>, StreamOperator<OUT>, StreamOperatorStateHandler.CheckpointedStreamOperator, YieldingOperator<OUT>

@Internal
public class EmbeddedPythonProcessOperator<IN,OUT>
extends AbstractOneInputEmbeddedPythonFunctionOperator<IN,OUT>

EmbeddedPythonProcessOperator is responsible for executing Python ProcessFunction in embedded Python environment.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractOneInputEmbeddedPythonFunctionOperator

timestamp

Fields inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedDataStreamPythonFunctionOperator

collector, hasSideOutput, outputTypeInfo, sideOutputContext

Fields inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedPythonFunctionOperator

interpreter

Fields inherited from class org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator

bundleFinishedCallback, config, elementCount, lastFinishBundleTime, maxBundleSize, systemEnvEnabled

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

combinedWatermark, lastRecordAttributes1, lastRecordAttributes2, latencyStats, LOG, metrics, output, processingTimeService, stateHandler, stateKeySelector1, stateKeySelector2, timeServiceManager

Constructor Summary

Constructors

Constructor	Description
EmbeddedPythonProcessOperator(Configuration config, DataStreamPythonFunctionInfo pythonFunctionInfo, TypeInformation<IN> inputTypeInfo, TypeInformation<OUT> outputTypeInfo)

Method Summary

Modifier and Type	Method	Description
<T> AbstractEmbeddedDataStreamPythonFunctionOperator<T>	copy(DataStreamPythonFunctionInfo pythonFunctionInfo, TypeInformation<T> outputTypeInfo)	Make a copy of the DataStreamPythonFunctionOperator with the given pythonFunctionInfo and outputTypeInfo.
List<FlinkFnApi.UserDefinedDataStreamFunction>	createUserDefinedFunctionsProto()	Gets the proto representation of the Python user-defined functions to be executed.
Object	getFunctionContext()	Gets The function context.
Object	getTimerContext()	Gets The Timer context.
void	open()	This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.
void	processWatermark(Watermark mark)	Processes a Watermark that arrived on the first input of this two-input operator.

Methods inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractOneInputEmbeddedPythonFunctionOperator

endInput, openPythonInterpreter, processElement

Methods inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedDataStreamPythonFunctionOperator

addSideOutputTags, getJobParameters, getProducedType, getPythonFunctionInfo, getSideOutputTags, setNumPartitions

Methods inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedPythonFunctionOperator

close, createPythonEnvironmentManager, invokeFinishBundle

Methods inherited from class org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator

checkInvokeFinishBundleByCount, finish, getConfiguration, getFlinkMetricContainer, isBundleFinished, prepareSnapshotPreBarrier, setCurrentKey

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isAsyncStateProcessingEnabled, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setKeyContextElement1, setKeyContextElement2, setMailboxExecutor, setProcessingTimeService, setup, snapshotState, snapshotState, useSplittableTimers

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.api.common.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

Methods inherited from interface org.apache.flink.streaming.api.operators.Input

processLatencyMarker, processRecordAttributes, processWatermarkStatus

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContextHandler

hasKeyContext

Methods inherited from interface org.apache.flink.streaming.api.operators.OneInputStreamOperator

setKeyContextElement

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

close, finish, getMetricGroup, getOperatorAttributes, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

Constructor Detail

EmbeddedPythonProcessOperator

public EmbeddedPythonProcessOperator(Configuration config,
                                     DataStreamPythonFunctionInfo pythonFunctionInfo,
                                     TypeInformation<IN> inputTypeInfo,
                                     TypeInformation<OUT> outputTypeInfo)

Method Detail

open

public void open()
          throws Exception

Description copied from class: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

Specified by:

open in interface StreamOperator<IN>

Overrides:

open in class AbstractOneInputEmbeddedPythonFunctionOperator<IN,OUT>

Throws:

Exception - An exception in this method causes the operator to fail.

createUserDefinedFunctionsProto

public List<FlinkFnApi.UserDefinedDataStreamFunction> createUserDefinedFunctionsProto()

Description copied from class: AbstractOneInputEmbeddedPythonFunctionOperator

Gets the proto representation of the Python user-defined functions to be executed.

Specified by:

createUserDefinedFunctionsProto in class AbstractOneInputEmbeddedPythonFunctionOperator<IN,OUT>

getFunctionContext

public Object getFunctionContext()

Description copied from class: AbstractOneInputEmbeddedPythonFunctionOperator

Gets The function context.

Specified by:

getFunctionContext in class AbstractOneInputEmbeddedPythonFunctionOperator<IN,OUT>

getTimerContext

public Object getTimerContext()

Description copied from class: AbstractOneInputEmbeddedPythonFunctionOperator

Gets The Timer context.

Specified by:

getTimerContext in class AbstractOneInputEmbeddedPythonFunctionOperator<IN,OUT>

copy

public <T> AbstractEmbeddedDataStreamPythonFunctionOperator<T> copy(DataStreamPythonFunctionInfo pythonFunctionInfo,
                                                                    TypeInformation<T> outputTypeInfo)

Description copied from interface: DataStreamPythonFunctionOperator

Make a copy of the DataStreamPythonFunctionOperator with the given pythonFunctionInfo and outputTypeInfo. This is used for chaining optimization which may need to update the underlying pythonFunctionInfo and outputTypeInfo with the other fields not changed.

processWatermark

public void processWatermark(Watermark mark)
                      throws Exception

Description copied from interface: Input

Processes a Watermark that arrived on the first input of this two-input operator. This method is guaranteed to not be called concurrently with other methods of the operator.

Specified by:

processWatermark in interface Input<IN>

Overrides:

processWatermark in class AbstractPythonFunctionOperator<OUT>

Throws:

Exception

See Also:

Watermark