Package org.opennms.nephron.testing.flowgen

Class SyntheticFlowSource

java.lang.Object

org.apache.beam.sdk.io.Source<OutputT>

org.apache.beam.sdk.io.UnboundedSource<org.opennms.netmgt.flows.persistence.model.FlowDocument,FlowReader.CheckpointMark>

org.opennms.nephron.testing.flowgen.SyntheticFlowSource

All Implemented Interfaces:

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

public class SyntheticFlowSource
extends org.apache.beam.sdk.io.UnboundedSource<org.opennms.netmgt.flows.persistence.model.FlowDocument,FlowReader.CheckpointMark>

A source of synthetically generated flows.

Flow generation can be parameterized by a SourceConfig instance. Flows are generated deterministically base on the supplied seed value for a random number generator.

See Also:

Serialized Form

Nested Class Summary

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

org.apache.beam.sdk.io.UnboundedSource.CheckpointMark, org.apache.beam.sdk.io.UnboundedSource.UnboundedReader<OutputT extends Object>

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

org.apache.beam.sdk.io.Source.Reader<T extends Object>

Constructor Summary

Constructors

Constructor	Description
SyntheticFlowSource(SourceConfig sourceConfig)

Method Summary

Modifier and Type	Method	Description
org.apache.beam.sdk.io.UnboundedSource.UnboundedReader<org.opennms.netmgt.flows.persistence.model.FlowDocument>	createReader(org.apache.beam.sdk.options.PipelineOptions options, @Nullable FlowReader.CheckpointMark checkpointMark)
org.apache.beam.sdk.coders.Coder<FlowReader.CheckpointMark>	getCheckpointMarkCoder()
org.apache.beam.sdk.coders.Coder<org.opennms.netmgt.flows.persistence.model.FlowDocument>	getOutputCoder()
static org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<org.opennms.netmgt.flows.persistence.model.FlowDocument>>	readFromSyntheticSource(SourceConfig sourceConfig)	Creates a transformation that reads from a synthetic flow source.
List<? extends org.apache.beam.sdk.io.UnboundedSource<org.opennms.netmgt.flows.persistence.model.FlowDocument,FlowReader.CheckpointMark>>	split(int desiredNumSplits, org.apache.beam.sdk.options.PipelineOptions options)

Methods inherited from class org.apache.beam.sdk.io.UnboundedSource

requiresDeduping

Methods inherited from class org.apache.beam.sdk.io.Source

getDefaultOutputCoder, populateDisplayData, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

SyntheticFlowSource

public SyntheticFlowSource(SourceConfig sourceConfig)

Method Detail

readFromSyntheticSource

public static org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<org.opennms.netmgt.flows.persistence.model.FlowDocument>> readFromSyntheticSource(SourceConfig sourceConfig)

Creates a transformation that reads from a synthetic flow source.

split

public List<? extends org.apache.beam.sdk.io.UnboundedSource<org.opennms.netmgt.flows.persistence.model.FlowDocument,FlowReader.CheckpointMark>> split(int desiredNumSplits,
                                                                                                                                                             org.apache.beam.sdk.options.PipelineOptions options)
                                                                                                                                                      throws Exception

Specified by:

split in class org.apache.beam.sdk.io.UnboundedSource<org.opennms.netmgt.flows.persistence.model.FlowDocument,FlowReader.CheckpointMark>

Throws:

Exception

createReader

public org.apache.beam.sdk.io.UnboundedSource.UnboundedReader<org.opennms.netmgt.flows.persistence.model.FlowDocument> createReader(org.apache.beam.sdk.options.PipelineOptions options,
                                                                                                                                    @Nullable FlowReader.CheckpointMark checkpointMark)
                                                                                                                             throws IOException

Specified by:

createReader in class org.apache.beam.sdk.io.UnboundedSource<org.opennms.netmgt.flows.persistence.model.FlowDocument,FlowReader.CheckpointMark>

Throws:

IOException

getCheckpointMarkCoder

public org.apache.beam.sdk.coders.Coder<FlowReader.CheckpointMark> getCheckpointMarkCoder()

Specified by:

getCheckpointMarkCoder in class org.apache.beam.sdk.io.UnboundedSource<org.opennms.netmgt.flows.persistence.model.FlowDocument,FlowReader.CheckpointMark>

getOutputCoder

public org.apache.beam.sdk.coders.Coder<org.opennms.netmgt.flows.persistence.model.FlowDocument> getOutputCoder()

Overrides:

getOutputCoder in class org.apache.beam.sdk.io.Source<org.opennms.netmgt.flows.persistence.model.FlowDocument>