Package org.opennms.nephron.cortex

Class CortexIo.WriteFnWithAccumulation<K,V>

java.lang.Object

org.apache.beam.sdk.transforms.DoFn<org.apache.beam.sdk.values.KV<K,V>,Void>

org.opennms.nephron.cortex.CortexIo.WriteFn<K,V,org.opennms.nephron.cortex.CortexIo.WriteWithAccumulation<K,V>>

org.opennms.nephron.cortex.CortexIo.WriteFnWithAccumulation<K,V>

All Implemented Interfaces:

Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

CortexIo

public static class CortexIo.WriteFnWithAccumulation<K,V>
extends CortexIo.WriteFn<K,V,org.opennms.nephron.cortex.CortexIo.WriteWithAccumulation<K,V>>

A Cortex sink that assigns unique index numbers and accumulates values.

See Also:

Serialized Form

Nested Class Summary

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

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

Field Summary

Fields inherited from class org.opennms.nephron.cortex.CortexIo.WriteFn

allowedLateness, spec

Constructor Summary

Constructors

Constructor	Description
WriteFnWithAccumulation(org.opennms.nephron.cortex.CortexIo.WriteWithAccumulation<K,V> spec, org.joda.time.Duration allowedLateness)

Method Summary

Modifier and Type	Method	Description
void	onGc(K key, org.apache.beam.sdk.state.ValueState<org.opennms.nephron.cortex.Heap.HeapImpl<V>> heapState)
void	onOutput(org.apache.beam.sdk.transforms.DoFn.OnTimerContext ctx, K key, org.apache.beam.sdk.state.ValueState<org.opennms.nephron.cortex.Heap.HeapImpl<V>> heapState, org.apache.beam.sdk.state.Timer timer)
void	processElement(org.apache.beam.sdk.transforms.DoFn.ProcessContext ctx, org.apache.beam.sdk.state.ValueState<org.opennms.nephron.cortex.Heap.HeapImpl<V>> heapState, org.apache.beam.sdk.state.Timer outputTimer, org.apache.beam.sdk.state.Timer gcTimer)

Methods inherited from class org.opennms.nephron.cortex.CortexIo.WriteFn

closeClient, finishBundle, outputTimeSeries, setGcTimer, setup, startBatch, startBundle

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

WriteFnWithAccumulation

public WriteFnWithAccumulation(org.opennms.nephron.cortex.CortexIo.WriteWithAccumulation<K,V> spec,
                               org.joda.time.Duration allowedLateness)

Method Detail

processElement

@ProcessElement
public void processElement(org.apache.beam.sdk.transforms.DoFn.ProcessContext ctx,
                           @AlwaysFetched @StateId("heap")
                           org.apache.beam.sdk.state.ValueState<org.opennms.nephron.cortex.Heap.HeapImpl<V>> heapState,
                           @TimerId("output")
                           org.apache.beam.sdk.state.Timer outputTimer,
                           @TimerId("gc")
                           org.apache.beam.sdk.state.Timer gcTimer)
                    throws Exception

Throws:

Exception

onOutput

@OnTimer("output")
public void onOutput(org.apache.beam.sdk.transforms.DoFn.OnTimerContext ctx,
                     @Key
                     K key,
                     @AlwaysFetched @StateId("heap")
                     org.apache.beam.sdk.state.ValueState<org.opennms.nephron.cortex.Heap.HeapImpl<V>> heapState,
                     @TimerId("output")
                     org.apache.beam.sdk.state.Timer timer)
              throws IOException

Throws:

IOException

onGc

@OnTimer("gc")
public void onGc(@Key
                 K key,
                 @AlwaysFetched @StateId("heap")
                 org.apache.beam.sdk.state.ValueState<org.opennms.nephron.cortex.Heap.HeapImpl<V>> heapState)
          throws IOException

Throws:

IOException