org.apache.beam.it.gcp

Class IOStressTestBase.MultiplierDoFn<T>

java.lang.Object

org.apache.beam.sdk.transforms.DoFn<T,T>

org.apache.beam.it.gcp.IOStressTestBase.MultiplierDoFn<T>

All Implemented Interfaces:

java.io.Serializable, HasDisplayData

Enclosing class:

IOStressTestBase

protected static class IOStressTestBase.MultiplierDoFn<T>
extends DoFn<T,T>

Custom Apache Beam DoFn designed for use in stress testing scenarios. It introduces a dynamic load increase over time, multiplying the input elements based on the elapsed time since the start of processing. This class aims to simulate various load levels during stress testing.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.beam.sdk.transforms.DoFn

DoFn.AlwaysFetched, DoFn.BoundedPerElement, DoFn.BundleFinalizer, DoFn.Element, DoFn.FieldAccess, DoFn.FinishBundle, DoFn.FinishBundleContext, DoFn.GetInitialRestriction, DoFn.GetInitialWatermarkEstimatorState, DoFn.GetRestrictionCoder, DoFn.GetSize, DoFn.GetWatermarkEstimatorStateCoder, DoFn.Key, DoFn.MultiOutputReceiver, DoFn.NewTracker, DoFn.NewWatermarkEstimator, DoFn.OnTimer, DoFn.OnTimerContext, DoFn.OnTimerFamily, DoFn.OnWindowExpiration, DoFn.OnWindowExpirationContext, DoFn.OutputReceiver<T>, DoFn.ProcessContext, DoFn.ProcessContinuation, DoFn.ProcessElement, DoFn.RequiresStableInput, DoFn.RequiresTimeSortedInput, DoFn.Restriction, DoFn.Setup, DoFn.SideInput, DoFn.SplitRestriction, DoFn.StartBundle, DoFn.StartBundleContext, DoFn.StateId, DoFn.Teardown, DoFn.TimerFamily, DoFn.TimerId, DoFn.Timestamp, DoFn.TruncateRestriction, DoFn.UnboundedPerElement, DoFn.WatermarkEstimatorState, DoFn.WindowedContext

Constructor Summary

Constructors

Constructor and Description
MultiplierDoFn(int startMultiplier, java.util.List<IOStressTestBase.LoadPeriod> loadPeriods)

Method Summary

Modifier and Type	Method and Description
void	processElement(T element, DoFn.OutputReceiver<T> outputReceiver, Instant timestamp)

Methods inherited from class org.apache.beam.sdk.transforms.DoFn

getAllowedTimestampSkew, getInputTypeDescriptor, getOutputTypeDescriptor, populateDisplayData, prepareForProcessing

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiplierDoFn

public MultiplierDoFn(int startMultiplier,
                      java.util.List<IOStressTestBase.LoadPeriod> loadPeriods)

Method Detail

processElement

@DoFn.ProcessElement
public void processElement(@DoFn.Element
                                                T element,
                                                DoFn.OutputReceiver<T> outputReceiver,
                                                @DoFn.Timestamp
                                                Instant timestamp)