org.apache.flink.connector.file.sink.compactor.operator

Class CompactCoordinator

java.lang.Object

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

org.apache.flink.connector.file.sink.compactor.operator.CompactCoordinator

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.streaming.api.operators.BoundedOneInput, org.apache.flink.streaming.api.operators.Input<org.apache.flink.streaming.api.connector.sink2.CommittableMessage<FileSinkCommittable>>, org.apache.flink.streaming.api.operators.KeyContext, org.apache.flink.streaming.api.operators.KeyContextHandler, org.apache.flink.streaming.api.operators.OneInputStreamOperator<org.apache.flink.streaming.api.connector.sink2.CommittableMessage<FileSinkCommittable>,CompactorRequest>, org.apache.flink.streaming.api.operators.SetupableStreamOperator<CompactorRequest>, org.apache.flink.streaming.api.operators.StreamOperator<CompactorRequest>, org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator, org.apache.flink.streaming.api.operators.YieldingOperator<CompactorRequest>

@Internal
public class CompactCoordinator
extends org.apache.flink.streaming.api.operators.AbstractStreamOperator<CompactorRequest>
implements org.apache.flink.streaming.api.operators.OneInputStreamOperator<org.apache.flink.streaming.api.connector.sink2.CommittableMessage<FileSinkCommittable>,CompactorRequest>, org.apache.flink.streaming.api.operators.BoundedOneInput

Coordinator that coordinates file compaction for the FileSink.

All committable emitted from the writers are collected and packed into CompactorRequests. The FileCompactStrategy defines when the requests can be fired. When a firing condition is met, the requests will be sent to the CompactorOperator.

The CompactCoordinator stores the non-fired committable as its state, and may emit a request at any time. A CompactorOperator must ensure that the ownership of the committable in a compact request is successfully handed from the coordinator, before it can actually perform the compaction.

See Also:

Serialized Form

Field Summary

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

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

Constructor Summary

Constructors

Constructor and Description
CompactCoordinator(FileCompactStrategy strategy, org.apache.flink.core.io.SimpleVersionedSerializer<FileSinkCommittable> committableSerializer)

Method Summary

Modifier and Type	Method and Description
void	endInput()
void	initializeState(org.apache.flink.runtime.state.StateInitializationContext context)
void	prepareSnapshotPreBarrier(long checkpointId)
void	processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.streaming.api.connector.sink2.CommittableMessage<FileSinkCommittable>> element)
void	snapshotState(org.apache.flink.runtime.state.StateSnapshotContext context)

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

close, finish, getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, open, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setMailboxExecutor, setProcessingTimeService, setup, 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.streaming.api.operators.OneInputStreamOperator

setKeyContextElement

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

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

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

notifyCheckpointAborted, notifyCheckpointComplete

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

getCurrentKey, setCurrentKey

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

processLatencyMarker, processRecordAttributes, processWatermark, processWatermarkStatus

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

hasKeyContext

Constructor Detail

CompactCoordinator

public CompactCoordinator(FileCompactStrategy strategy,
                          org.apache.flink.core.io.SimpleVersionedSerializer<FileSinkCommittable> committableSerializer)

Method Detail

processElement

public void processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.streaming.api.connector.sink2.CommittableMessage<FileSinkCommittable>> element)
                    throws Exception

Specified by:

processElement in interface org.apache.flink.streaming.api.operators.Input<org.apache.flink.streaming.api.connector.sink2.CommittableMessage<FileSinkCommittable>>

Throws:

Exception

endInput

public void endInput()
              throws Exception

Specified by:

endInput in interface org.apache.flink.streaming.api.operators.BoundedOneInput

Throws:

Exception

prepareSnapshotPreBarrier

public void prepareSnapshotPreBarrier(long checkpointId)
                               throws Exception

Specified by:

prepareSnapshotPreBarrier in interface org.apache.flink.streaming.api.operators.StreamOperator<CompactorRequest>

Overrides:

prepareSnapshotPreBarrier in class org.apache.flink.streaming.api.operators.AbstractStreamOperator<CompactorRequest>

Throws:

Exception

snapshotState

public void snapshotState(org.apache.flink.runtime.state.StateSnapshotContext context)
                   throws Exception

Specified by:

snapshotState in interface org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator

Overrides:

snapshotState in class org.apache.flink.streaming.api.operators.AbstractStreamOperator<CompactorRequest>

Throws:

Exception

initializeState

public void initializeState(org.apache.flink.runtime.state.StateInitializationContext context)
                     throws Exception

Specified by:

initializeState in interface org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator

Overrides:

initializeState in class org.apache.flink.streaming.api.operators.AbstractStreamOperator<CompactorRequest>

Throws:

Exception