Package org.apache.beam.sdk.expansion.service

Class ExpansionService

java.lang.Object

org.apache.beam.model.expansion.v1.ExpansionServiceGrpc.ExpansionServiceImplBase

org.apache.beam.sdk.expansion.service.ExpansionService

All Implemented Interfaces:

java.lang.AutoCloseable, org.apache.beam.model.expansion.v1.ExpansionServiceGrpc.AsyncService, org.apache.beam.vendor.grpc.v1p60p1.io.grpc.BindableService

public class ExpansionService
extends org.apache.beam.model.expansion.v1.ExpansionServiceGrpc.ExpansionServiceImplBase
implements java.lang.AutoCloseable

A service that allows pipeline expand transforms from a remote SDK.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ExpansionService.ExpansionServiceRegistrar	A registrar that creates TransformProvider instances from RunnerApi.FunctionSpecs.
static class	ExpansionService.ExternalTransformRegistrarLoader	Exposes Java transforms via ExternalTransformRegistrar.

Constructor Summary

Constructors

Constructor	Description
ExpansionService()
ExpansionService(java.lang.String[] args)
ExpansionService(org.apache.beam.sdk.options.PipelineOptions opts)
ExpansionService(org.apache.beam.sdk.options.PipelineOptions opts, @Nullable java.lang.String loopbackAddress)

Method Summary

Modifier and Type	Method	Description
void	close()
protected org.apache.beam.sdk.Pipeline	createPipeline(org.apache.beam.sdk.options.PipelineOptions requestOptions)
void	discoverSchemaTransform(org.apache.beam.model.expansion.v1.ExpansionApi.DiscoverSchemaTransformRequest request, org.apache.beam.vendor.grpc.v1p60p1.io.grpc.stub.StreamObserver<org.apache.beam.model.expansion.v1.ExpansionApi.DiscoverSchemaTransformResponse> responseObserver)
void	expand(org.apache.beam.model.expansion.v1.ExpansionApi.ExpansionRequest request, org.apache.beam.vendor.grpc.v1p60p1.io.grpc.stub.StreamObserver<org.apache.beam.model.expansion.v1.ExpansionApi.ExpansionResponse> responseObserver)
static void	main(java.lang.String[] args)
static <ConfigT> ConfigT	payloadToConfig(org.apache.beam.model.pipeline.v1.ExternalTransforms.ExternalConfigurationPayload payload, java.lang.Class<ConfigT> configurationClass)	Attempt to create an instance of ExpansionService from an ExternalTransforms.ExternalConfigurationPayload.

Methods inherited from class org.apache.beam.model.expansion.v1.ExpansionServiceGrpc.ExpansionServiceImplBase

bindService

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpansionService

public ExpansionService()

ExpansionService

public ExpansionService(java.lang.String[] args)

ExpansionService

public ExpansionService(org.apache.beam.sdk.options.PipelineOptions opts)

ExpansionService

public ExpansionService(org.apache.beam.sdk.options.PipelineOptions opts,
                        @Nullable java.lang.String loopbackAddress)

Method Detail

payloadToConfig

public static <ConfigT> ConfigT payloadToConfig(org.apache.beam.model.pipeline.v1.ExternalTransforms.ExternalConfigurationPayload payload,
                                                java.lang.Class<ConfigT> configurationClass)

Attempt to create an instance of ExpansionService from an ExternalTransforms.ExternalConfigurationPayload. If a schema is registered for ExpansionService this method will attempt to ise it. Throws an IllegalArgumentException if the schema in payload is not assignable to the registered schema.

If no Schema is registered, ExpansionService must have a zero-argument constructor and setters corresponding to each field in the row encoded by payload. Note ExpansionService may have additional setters not represented in the schema.

Exposed for testing only. No backwards compatibility guarantees.

createPipeline

protected org.apache.beam.sdk.Pipeline createPipeline(org.apache.beam.sdk.options.PipelineOptions requestOptions)

expand

public void expand(org.apache.beam.model.expansion.v1.ExpansionApi.ExpansionRequest request,
                   org.apache.beam.vendor.grpc.v1p60p1.io.grpc.stub.StreamObserver<org.apache.beam.model.expansion.v1.ExpansionApi.ExpansionResponse> responseObserver)

Specified by:

expand in interface org.apache.beam.model.expansion.v1.ExpansionServiceGrpc.AsyncService

discoverSchemaTransform

public void discoverSchemaTransform(org.apache.beam.model.expansion.v1.ExpansionApi.DiscoverSchemaTransformRequest request,
                                    org.apache.beam.vendor.grpc.v1p60p1.io.grpc.stub.StreamObserver<org.apache.beam.model.expansion.v1.ExpansionApi.DiscoverSchemaTransformResponse> responseObserver)

Specified by:

discoverSchemaTransform in interface org.apache.beam.model.expansion.v1.ExpansionServiceGrpc.AsyncService

close

public void close()
           throws java.lang.Exception

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.lang.Exception

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception