org.apache.flink.streaming.util

Class FiniteTestSource<T>

java.lang.Object

org.apache.flink.streaming.util.FiniteTestSource<T>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.streaming.api.functions.source.SourceFunction<T>

public class FiniteTestSource<T>
extends Object
implements org.apache.flink.streaming.api.functions.source.SourceFunction<T>, org.apache.flink.api.common.state.CheckpointListener

A stream source that: 1) emits a list of elements without allowing checkpoints, 2) then waits for two more checkpoints to complete, 3) then re-emits the same elements before 4) waiting for another two checkpoints and 5) exiting.

This class was written to test the Bulk Writers used by the StreamingFileSink.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.streaming.api.functions.source.SourceFunction

org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<T>

Constructor Summary

Constructors

Constructor and Description
FiniteTestSource(java.util.function.BooleanSupplier couldExit, Iterable<T> elements)
FiniteTestSource(java.util.function.BooleanSupplier couldExit, long waitTimeOut, Iterable<T> elements)
FiniteTestSource(Iterable<T> elements)
FiniteTestSource(T... elements)

Method Summary

Modifier and Type	Method and Description
void	cancel()
void	notifyCheckpointAborted(long checkpointId)
void	notifyCheckpointComplete(long checkpointId)
void	run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<T> ctx)

Methods inherited from class java.lang.Object

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

Constructor Detail

FiniteTestSource

@SafeVarargs
public FiniteTestSource(T... elements)

FiniteTestSource

public FiniteTestSource(Iterable<T> elements)

FiniteTestSource

public FiniteTestSource(@Nullable
                        java.util.function.BooleanSupplier couldExit,
                        long waitTimeOut,
                        Iterable<T> elements)

FiniteTestSource

public FiniteTestSource(@Nullable
                        java.util.function.BooleanSupplier couldExit,
                        Iterable<T> elements)

Method Detail

run

public void run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<T> ctx)
         throws Exception

Specified by:

run in interface org.apache.flink.streaming.api.functions.source.SourceFunction<T>

Throws:

Exception

cancel

public void cancel()

Specified by:

cancel in interface org.apache.flink.streaming.api.functions.source.SourceFunction<T>

notifyCheckpointComplete

public void notifyCheckpointComplete(long checkpointId)
                              throws Exception

Specified by:

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

Throws:

Exception

notifyCheckpointAborted

public void notifyCheckpointAborted(long checkpointId)

Specified by:

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