org.apache.beam.runners.flink.metrics

Class DoFnRunnerWithMetricsUpdate<InputT,OutputT>

java.lang.Object

org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate<InputT,OutputT>

All Implemented Interfaces:

org.apache.beam.runners.core.DoFnRunner<InputT,OutputT>

public class DoFnRunnerWithMetricsUpdate<InputT,OutputT>
extends java.lang.Object
implements org.apache.beam.runners.core.DoFnRunner<InputT,OutputT>

DoFnRunner decorator which registers MetricsContainerImpl. It updates metrics to Flink metrics and accumulators in finishBundle().

Constructor Summary

Constructors

Constructor and Description
DoFnRunnerWithMetricsUpdate(java.lang.String stepName, org.apache.beam.runners.core.DoFnRunner<InputT,OutputT> delegate, org.apache.flink.api.common.functions.RuntimeContext runtimeContext)

Method Summary

Modifier and Type	Method and Description
void	finishBundle() Calls a DoFn's @FinishBundle method and performs additional tasks, such as flushing in-memory states.
void	onTimer(java.lang.String timerId, BoundedWindow window, Instant timestamp, TimeDomain timeDomain) Calls a DoFn's @OnTimer method for the given timer in the given window.
void	processElement(org.apache.beam.sdk.util.WindowedValue<InputT> elem) Calls a DoFn's @ProcessElement method with a DoFn.ProcessContext containing the provided element.
void	startBundle() Prepares and calls a DoFn's @StartBundle method.

Methods inherited from class java.lang.Object

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

Constructor Detail

DoFnRunnerWithMetricsUpdate

public DoFnRunnerWithMetricsUpdate(java.lang.String stepName,
                                   org.apache.beam.runners.core.DoFnRunner<InputT,OutputT> delegate,
                                   org.apache.flink.api.common.functions.RuntimeContext runtimeContext)

Method Detail

startBundle

public void startBundle()

Description copied from interface: org.apache.beam.runners.core.DoFnRunner

Prepares and calls a DoFn's @StartBundle method.

Specified by:

startBundle in interface org.apache.beam.runners.core.DoFnRunner<InputT,OutputT>

processElement

public void processElement(org.apache.beam.sdk.util.WindowedValue<InputT> elem)

Description copied from interface: org.apache.beam.runners.core.DoFnRunner

Calls a DoFn's @ProcessElement method with a DoFn.ProcessContext containing the provided element.

Specified by:

processElement in interface org.apache.beam.runners.core.DoFnRunner<InputT,OutputT>

onTimer

public void onTimer(java.lang.String timerId,
                    BoundedWindow window,
                    Instant timestamp,
                    TimeDomain timeDomain)

Description copied from interface: org.apache.beam.runners.core.DoFnRunner

Calls a DoFn's @OnTimer method for the given timer in the given window.

Specified by:

onTimer in interface org.apache.beam.runners.core.DoFnRunner<InputT,OutputT>

finishBundle

public void finishBundle()

Description copied from interface: org.apache.beam.runners.core.DoFnRunner

Calls a DoFn's @FinishBundle method and performs additional tasks, such as flushing in-memory states.

Specified by:

finishBundle in interface org.apache.beam.runners.core.DoFnRunner<InputT,OutputT>