org.opennms.nephron

Class FlowTimestampPolicy

java.lang.Object

org.apache.beam.sdk.io.kafka.TimestampPolicy<String,org.opennms.netmgt.flows.persistence.model.FlowDocument>

org.opennms.nephron.FlowTimestampPolicy

public class FlowTimestampPolicy
extends org.apache.beam.sdk.io.kafka.TimestampPolicy<String,org.opennms.netmgt.flows.persistence.model.FlowDocument>

Maintain the watermark at the (largest event time - acceptable delay) and ignore event times that are in the future relative to the system clock.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.beam.sdk.io.kafka.TimestampPolicy

org.apache.beam.sdk.io.kafka.TimestampPolicy.PartitionContext

Constructor Summary

Constructors

Constructor and Description
FlowTimestampPolicy(org.joda.time.Duration maxDelay, Optional<org.joda.time.Instant> previousWatermark)

Method Summary

Modifier and Type	Method and Description
org.joda.time.Instant	getTimestampForRecord(org.apache.beam.sdk.io.kafka.TimestampPolicy.PartitionContext ctx, org.apache.beam.sdk.io.kafka.KafkaRecord<String,org.opennms.netmgt.flows.persistence.model.FlowDocument> record)
org.joda.time.Instant	getTimestampForRecord(org.apache.beam.sdk.io.kafka.TimestampPolicy.PartitionContext ctx, org.apache.beam.sdk.io.kafka.KafkaRecord<String,org.opennms.netmgt.flows.persistence.model.FlowDocument> record, org.joda.time.Instant now)
org.joda.time.Instant	getWatermark(org.apache.beam.sdk.io.kafka.TimestampPolicy.PartitionContext ctx)

Methods inherited from class java.lang.Object

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

Constructor Detail

FlowTimestampPolicy

public FlowTimestampPolicy(org.joda.time.Duration maxDelay,
                           Optional<org.joda.time.Instant> previousWatermark)

Method Detail

getTimestampForRecord

public org.joda.time.Instant getTimestampForRecord(org.apache.beam.sdk.io.kafka.TimestampPolicy.PartitionContext ctx,
                                                   org.apache.beam.sdk.io.kafka.KafkaRecord<String,org.opennms.netmgt.flows.persistence.model.FlowDocument> record)

Specified by:

getTimestampForRecord in class org.apache.beam.sdk.io.kafka.TimestampPolicy<String,org.opennms.netmgt.flows.persistence.model.FlowDocument>

getTimestampForRecord

public org.joda.time.Instant getTimestampForRecord(org.apache.beam.sdk.io.kafka.TimestampPolicy.PartitionContext ctx,
                                                   org.apache.beam.sdk.io.kafka.KafkaRecord<String,org.opennms.netmgt.flows.persistence.model.FlowDocument> record,
                                                   org.joda.time.Instant now)

getWatermark

public org.joda.time.Instant getWatermark(org.apache.beam.sdk.io.kafka.TimestampPolicy.PartitionContext ctx)

Specified by:

getWatermark in class org.apache.beam.sdk.io.kafka.TimestampPolicy<String,org.opennms.netmgt.flows.persistence.model.FlowDocument>