Package cz.o2.proxima.beam.direct.io

Class BeamBatchLogReader

java.lang.Object

org.apache.beam.sdk.io.Source.Reader<T>

org.apache.beam.sdk.io.BoundedSource.BoundedReader<StreamElement>

cz.o2.proxima.beam.direct.io.BeamBatchLogReader

All Implemented Interfaces:

java.lang.AutoCloseable

class BeamBatchLogReader
extends org.apache.beam.sdk.io.BoundedSource.BoundedReader<StreamElement>

A BoundedSource.BoundedReader reading from BatchLogReader.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.List<AttributeDescriptor<?>>	attrs
private StreamElement	current
private long	endStamp
private boolean	finished
private static org.joda.time.Instant	HIGHEST_INSTANT
private static org.joda.time.Instant	LOWEST_INSTANT
private BlockingQueueLogObserver.BatchLogObserver	observer
private BatchLogReader	reader
private DirectBatchSource	source
private Partition	split
private long	startStamp

Fields inherited from class org.apache.beam.sdk.io.BoundedSource.BoundedReader

SPLIT_POINTS_UNKNOWN

Constructor Summary

Constructors

Modifier	Constructor	Description
private	BeamBatchLogReader(DirectBatchSource source, BatchLogReader reader, java.util.List<AttributeDescriptor<?>> attrs, Partition split, long startStamp, long endStamp)

Method Summary

Modifier and Type	Method	Description
boolean	advance()
void	close()
StreamElement	getCurrent()
org.apache.beam.sdk.io.BoundedSource<StreamElement>	getCurrentSource()
org.joda.time.Instant	getCurrentTimestamp()
(package private) static BeamBatchLogReader	of(DirectBatchSource source, BatchLogReader reader, java.util.List<AttributeDescriptor<?>> attrs, Partition split, long startStamp, long endStamp)
boolean	start()

Methods inherited from class org.apache.beam.sdk.io.BoundedSource.BoundedReader

getFractionConsumed, getSplitPointsConsumed, getSplitPointsRemaining, splitAtFraction

Methods inherited from class java.lang.Object

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

Field Detail

LOWEST_INSTANT

private static final org.joda.time.Instant LOWEST_INSTANT

HIGHEST_INSTANT

private static final org.joda.time.Instant HIGHEST_INSTANT

source

private final DirectBatchSource source

reader

private final BatchLogReader reader

attrs

private final java.util.List<AttributeDescriptor<?>> attrs

split

private final Partition split

startStamp

private final long startStamp

endStamp

private final long endStamp

current

private StreamElement current

observer

private BlockingQueueLogObserver.BatchLogObserver observer

finished

private boolean finished

Constructor Detail

BeamBatchLogReader

private BeamBatchLogReader(DirectBatchSource source,
                           BatchLogReader reader,
                           java.util.List<AttributeDescriptor<?>> attrs,
                           Partition split,
                           long startStamp,
                           long endStamp)

Method Detail

of

static BeamBatchLogReader of(DirectBatchSource source,
                             BatchLogReader reader,
                             java.util.List<AttributeDescriptor<?>> attrs,
                             Partition split,
                             long startStamp,
                             long endStamp)

getCurrentSource

public org.apache.beam.sdk.io.BoundedSource<StreamElement> getCurrentSource()

Specified by:

getCurrentSource in class org.apache.beam.sdk.io.BoundedSource.BoundedReader<StreamElement>

start

public boolean start()
              throws java.io.IOException

Specified by:

start in class org.apache.beam.sdk.io.Source.Reader<StreamElement>

Throws:

java.io.IOException

advance

public boolean advance()
                throws java.io.IOException

Specified by:

advance in class org.apache.beam.sdk.io.Source.Reader<StreamElement>

Throws:

java.io.IOException

getCurrent

public StreamElement getCurrent()
                         throws java.util.NoSuchElementException

Specified by:

getCurrent in class org.apache.beam.sdk.io.Source.Reader<StreamElement>

Throws:

java.util.NoSuchElementException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class org.apache.beam.sdk.io.Source.Reader<StreamElement>

Throws:

java.io.IOException

getCurrentTimestamp

public org.joda.time.Instant getCurrentTimestamp()
                                          throws java.util.NoSuchElementException

Overrides:

getCurrentTimestamp in class org.apache.beam.sdk.io.BoundedSource.BoundedReader<StreamElement>

Throws:

java.util.NoSuchElementException