Package org.apache.flink.connector.file.table.stream.compact

Class CompactOperator<T>

java.lang.Object

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

org.apache.flink.connector.file.table.stream.compact.CompactOperator<T>

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<CompactMessages.CoordinatorOutput>, org.apache.flink.streaming.api.operators.KeyContext, org.apache.flink.streaming.api.operators.KeyContextHandler, org.apache.flink.streaming.api.operators.OneInputStreamOperator<CompactMessages.CoordinatorOutput,PartitionCommitInfo>, org.apache.flink.streaming.api.operators.StreamOperator<PartitionCommitInfo>, org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator, org.apache.flink.streaming.api.operators.YieldingOperator<PartitionCommitInfo>

@Internal
public class CompactOperator<T>
extends org.apache.flink.streaming.api.operators.AbstractStreamOperator<PartitionCommitInfo>
implements org.apache.flink.streaming.api.operators.OneInputStreamOperator<CompactMessages.CoordinatorOutput,PartitionCommitInfo>, org.apache.flink.streaming.api.operators.BoundedOneInput

Receives compaction units to do compaction. Send partition commit information after compaction finished.

Use BulkFormat to read and use BucketWriter to write.

STATE: This operator stores expired files in state, after the checkpoint completes successfully, We can ensure that these files will not be used again and they can be deleted from the file system.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COMPACTED_PREFIX
static final String	UNCOMPACTED_PREFIX

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

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

Constructor Summary

Constructors

Constructor	Description
CompactOperator(org.apache.flink.util.function.SupplierWithException<org.apache.flink.core.fs.FileSystem,IOException> fsFactory, CompactReader.Factory<T> readerFactory, CompactWriter.Factory<T> writerFactory)

Method Summary

Modifier and Type	Method	Description
static org.apache.flink.core.fs.Path	convertFromUncompacted(org.apache.flink.core.fs.Path path)
static String	convertToUncompacted(String path)
void	endInput()
void	initializeState(org.apache.flink.runtime.state.StateInitializationContext context)
void	notifyCheckpointComplete(long checkpointId)
void	processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<CompactMessages.CoordinatorOutput> element)
void	snapshotState(org.apache.flink.runtime.state.StateSnapshotContext context)

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

beforeInitializeStateHandler, close, finish, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, isAsyncStateProcessingEnabled, isUsingCustomRawKeyedState, notifyCheckpointAborted, open, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark, processWatermark1, processWatermark1, processWatermark2, processWatermark2, processWatermarkStatus, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, 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.api.common.state.CheckpointListener

notifyCheckpointAborted

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

processLatencyMarker, processRecordAttributes, processWatermark, processWatermark, 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, open, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

Field Details

UNCOMPACTED_PREFIX

public static final String UNCOMPACTED_PREFIX

See Also:

• Constant Field Values

COMPACTED_PREFIX

public static final String COMPACTED_PREFIX

See Also:

• Constant Field Values

Constructor Details

CompactOperator

public CompactOperator(org.apache.flink.util.function.SupplierWithException<org.apache.flink.core.fs.FileSystem,IOException> fsFactory,
 CompactReader.Factory<T> readerFactory,
 CompactWriter.Factory<T> writerFactory)

Method Details

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<PartitionCommitInfo>

Throws:

Exception

processElement

public void processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<CompactMessages.CoordinatorOutput> element)
                    throws Exception

Specified by:

processElement in interface org.apache.flink.streaming.api.operators.Input<T>

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<PartitionCommitInfo>

Throws:

Exception

notifyCheckpointComplete

public void notifyCheckpointComplete(long checkpointId)
                              throws Exception

Specified by:

notifyCheckpointComplete in interface org.apache.flink.api.common.state.CheckpointListener

Overrides:

notifyCheckpointComplete in class org.apache.flink.streaming.api.operators.AbstractStreamOperator<PartitionCommitInfo>

Throws:

Exception

endInput

public void endInput()
              throws Exception

Specified by:

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

Throws:

Exception

convertToUncompacted

public static String convertToUncompacted(String path)

convertFromUncompacted

public static org.apache.flink.core.fs.Path convertFromUncompacted(org.apache.flink.core.fs.Path path)