org.apache.nifi.processors.standard.merge

Class RecordBin

java.lang.Object

org.apache.nifi.processors.standard.merge.RecordBin

public class RecordBin
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	complete
private ProcessContext	context
private long	creationNanos
private List<FlowFile>	flowFiles
private int	fragmentCount
private long	id
private static AtomicLong	idGenerator
private ComponentLog	logger
private FlowFile	merged
private ByteCountingOutputStream	out
private Lock	readLock
private int	recordCount
private RecordSetWriter	recordWriter
private int	requiredRecordCount
private ReadWriteLock	rwLock
private ProcessSession	session
private RecordBinThresholds	thresholds
private Lock	writeLock
private RecordSetWriterFactory	writerFactory

Constructor Summary

Constructors

Constructor and Description
RecordBin(ProcessContext context, ProcessSession session, ComponentLog logger, RecordBinThresholds thresholds)

Method Summary

Modifier and Type	Method and Description
void	complete(String completionReason)
private void	fail()
private long	getBinAge()
private int	getMinimumRecordCount()
boolean	isComplete()
boolean	isFull()
boolean	isFullEnough()
boolean	isOlderThan(long period, TimeUnit unit)
boolean	isOlderThan(RecordBin other)
boolean	offer(FlowFile flowFile, RecordReader recordReader, ProcessSession flowFileSession, boolean block)
void	rollback()
String	toString()
private void	validateFragmentCount(String countAttributeName) Ensure that at least one FlowFile has a fragment.count attribute and that they all have the same value, if they have a value.

Methods inherited from class java.lang.Object

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

Field Detail

logger

private final ComponentLog logger

session

private final ProcessSession session

writerFactory

private final RecordSetWriterFactory writerFactory

thresholds

private final RecordBinThresholds thresholds

context

private final ProcessContext context

flowFiles

private final List<FlowFile> flowFiles

rwLock

private final ReadWriteLock rwLock

readLock

private final Lock readLock

writeLock

private final Lock writeLock

creationNanos

private final long creationNanos

merged

private FlowFile merged

recordWriter

private RecordSetWriter recordWriter

out

private ByteCountingOutputStream out

recordCount

private int recordCount

fragmentCount

private int fragmentCount

complete

private volatile boolean complete

idGenerator

private static final AtomicLong idGenerator

id

private final long id

requiredRecordCount

private volatile int requiredRecordCount

Constructor Detail

RecordBin

public RecordBin(ProcessContext context,
                 ProcessSession session,
                 ComponentLog logger,
                 RecordBinThresholds thresholds)

Method Detail

isOlderThan

public boolean isOlderThan(RecordBin other)

isOlderThan

public boolean isOlderThan(long period,
                           TimeUnit unit)

isComplete

public boolean isComplete()

offer

public boolean offer(FlowFile flowFile,
                     RecordReader recordReader,
                     ProcessSession flowFileSession,
                     boolean block)
              throws IOException

Throws:

IOException

isFull

public boolean isFull()

getMinimumRecordCount

private int getMinimumRecordCount()

isFullEnough

public boolean isFullEnough()

rollback

public void rollback()

getBinAge

private long getBinAge()

fail

private void fail()

validateFragmentCount

private void validateFragmentCount(String countAttributeName)

Ensure that at least one FlowFile has a fragment.count attribute and that they all have the same value, if they have a value.

complete

public void complete(String completionReason)
              throws IOException

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object