org.apache.nifi.controller.repository

Class StandardProcessSession.Checkpoint

java.lang.Object

org.apache.nifi.controller.repository.StandardProcessSession.Checkpoint

Enclosing class:

StandardProcessSession

protected static class StandardProcessSession.Checkpoint
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private List<ProvenanceEventRecord>	autoTerminatedEvents
private long	bytesRead
private long	bytesReceived
private long	bytesSent
private long	bytesWritten
private StateMap	clusterState
private Map<String,StandardFlowFileEvent>	connectionCounts
private long	contentSizeIn
private long	contentSizeOut
private Map<String,Long>	countersOnCommit
private Set<String>	createdFlowFiles
private Map<FlowFile,Path>	deleteOnCommit
private int	flowFilesIn
private int	flowFilesOut
private int	flowFilesReceived
private int	flowFilesSent
private Map<FlowFile,ProvenanceEventBuilder>	forkEventBuilders
private Map<FlowFile,List<ProvenanceEventRecord>>	generatedProvenanceEvents
private Map<String,Long>	immediateCounters
private boolean	initialized
private StateMap	localState
private long	processingTime
private Map<Long,StandardRepositoryRecord>	records
private long	removedBytes
private int	removedCount
private Set<String>	removedFlowFiles
private Set<ProvenanceEventRecord>	reportedEvents

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Checkpoint()

Method Summary

Modifier and Type	Method and Description
private void	checkpoint(StandardProcessSession session, List<ProvenanceEventRecord> autoTerminatedEvents, boolean copy)
private void	copyCheckpoint(StandardProcessSession session, List<ProvenanceEventRecord> autoTerminatedEvents) Checkpoints the Process Session by copying all information from the session's collections into this Checkpoint's collections.
private void	directCheckpoint(StandardProcessSession session, List<ProvenanceEventRecord> autoTerminatedEvents) Checkpoints the Process Session by adding references to the existing collections within the Process Session.
private StandardRepositoryRecord	getRecord(FlowFile flowFile)
private void	initializeForCopy()
private <K,V> void	mergeMaps(Map<K,V> destination, Map<K,V> toMerge, BiFunction<? super V,? super V,? extends V> merger)
private <K,V> void	mergeMapsWithMutableValue(Map<K,V> destination, Map<K,V> toMerge, BiConsumer<? super V,? super V> merger)

Methods inherited from class java.lang.Object

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

Field Detail

processingTime

private long processingTime

generatedProvenanceEvents

private Map<FlowFile,List<ProvenanceEventRecord>> generatedProvenanceEvents

forkEventBuilders

private Map<FlowFile,ProvenanceEventBuilder> forkEventBuilders

autoTerminatedEvents

private List<ProvenanceEventRecord> autoTerminatedEvents

reportedEvents

private Set<ProvenanceEventRecord> reportedEvents

records

private Map<Long,StandardRepositoryRecord> records

connectionCounts

private Map<String,StandardFlowFileEvent> connectionCounts

countersOnCommit

private Map<String,Long> countersOnCommit

immediateCounters

private Map<String,Long> immediateCounters

deleteOnCommit

private Map<FlowFile,Path> deleteOnCommit

removedFlowFiles

private Set<String> removedFlowFiles

createdFlowFiles

private Set<String> createdFlowFiles

removedCount

private int removedCount

removedBytes

private long removedBytes

bytesRead

private long bytesRead

bytesWritten

private long bytesWritten

flowFilesIn

private int flowFilesIn

flowFilesOut

private int flowFilesOut

contentSizeIn

private long contentSizeIn

contentSizeOut

private long contentSizeOut

flowFilesReceived

private int flowFilesReceived

flowFilesSent

private int flowFilesSent

bytesReceived

private long bytesReceived

bytesSent

private long bytesSent

initialized

private boolean initialized

localState

private StateMap localState

clusterState

private StateMap clusterState

Constructor Detail

Checkpoint

protected Checkpoint()

Method Detail

initializeForCopy

private void initializeForCopy()

checkpoint

private void checkpoint(StandardProcessSession session,
                        List<ProvenanceEventRecord> autoTerminatedEvents,
                        boolean copy)

directCheckpoint

private void directCheckpoint(StandardProcessSession session,
                              List<ProvenanceEventRecord> autoTerminatedEvents)

Checkpoints the Process Session by adding references to the existing collections within the Process Session. Any modifications made to the Checkpoint's Collections or the Process Session's collections will be reflected by the other. I.e., this is a copy-by-reference.

copyCheckpoint

private void copyCheckpoint(StandardProcessSession session,
                            List<ProvenanceEventRecord> autoTerminatedEvents)

Checkpoints the Process Session by copying all information from the session's collections into this Checkpoint's collections. This is necessary if multiple Process Sessions are to be batched together. I.e., this is a copy-by-value

mergeMaps

private <K,V> void mergeMaps(Map<K,V> destination,
                             Map<K,V> toMerge,
                             BiFunction<? super V,? super V,? extends V> merger)

mergeMapsWithMutableValue

private <K,V> void mergeMapsWithMutableValue(Map<K,V> destination,
                                             Map<K,V> toMerge,
                                             BiConsumer<? super V,? super V> merger)

getRecord

private StandardRepositoryRecord getRecord(FlowFile flowFile)