cz.o2.proxima.direct.batch

Class BatchLogReaders.ThroughputLimitedBatchLogObserver

java.lang.Object

cz.o2.proxima.direct.batch.BatchLogReaders.ForwardingBatchLogObserver

cz.o2.proxima.direct.batch.BatchLogReaders.ThroughputLimitedBatchLogObserver

All Implemented Interfaces:

BatchLogObserver

Enclosing class:

BatchLogReaders

private static class BatchLogReaders.ThroughputLimitedBatchLogObserver
extends BatchLogReaders.ForwardingBatchLogObserver

Nested Class Summary

Nested classes/interfaces inherited from interface cz.o2.proxima.direct.batch.BatchLogObserver

BatchLogObserver.OnNextContext

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Collection<Partition>	assignedPartitions
private ThroughputLimiter	limiter
private long	watermark

Constructor Summary

Constructors

Constructor and Description
ThroughputLimitedBatchLogObserver(BatchLogObserver delegate, java.util.Collection<Partition> assignedPartitions, ThroughputLimiter limiter)

Method Summary

Modifier and Type	Method and Description
private ThroughputLimiter.Context	getLimiterContext()
void	onCancelled() Signalled when the reading is cancelled.
void	onCompleted() Signalled when the reading is finished.
boolean	onError(java.lang.Throwable error) Signaled when reading error occurs.
boolean	onNext(StreamElement element) Read next data from the batch storage.
boolean	onNext(StreamElement element, BatchLogObserver.OnNextContext context) Read next data from the batch storage.
private void	waitIfNecessary()

Methods inherited from class java.lang.Object

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

Field Detail

assignedPartitions

private final java.util.Collection<Partition> assignedPartitions

limiter

private final ThroughputLimiter limiter

watermark

private long watermark

Constructor Detail

ThroughputLimitedBatchLogObserver

public ThroughputLimitedBatchLogObserver(BatchLogObserver delegate,
                                         java.util.Collection<Partition> assignedPartitions,
                                         ThroughputLimiter limiter)

Method Detail

onCompleted

public void onCompleted()

Description copied from interface: BatchLogObserver

Signalled when the reading is finished.

onError

public boolean onError(java.lang.Throwable error)

Description copied from interface: BatchLogObserver

Signaled when reading error occurs.

Parameters:

error - error caught during processing

Returns:

true to restart processing from beginning false to stop processing

onCancelled

public void onCancelled()

Description copied from interface: BatchLogObserver

Signalled when the reading is cancelled.

onNext

public boolean onNext(StreamElement element)

Description copied from interface: BatchLogObserver

Read next data from the batch storage.

Parameters:

element - the retrieved data element

Returns:

true to continue processing, false otherwise

onNext

public boolean onNext(StreamElement element,
                      BatchLogObserver.OnNextContext context)

Description copied from interface: BatchLogObserver

Read next data from the batch storage.

Parameters:

element - the retrieved data element

context - context of the data element

Returns:

true to continue processing, false otherwise

waitIfNecessary

private void waitIfNecessary()
                      throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

getLimiterContext

private ThroughputLimiter.Context getLimiterContext()