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GrpcBigQueryStorageStub.java
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GrpcBigQueryStorageStub.java
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/*
* Copyright 2019 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.cloud.bigquery.storage.v1beta1.stub;
import com.google.api.core.BetaApi;
import com.google.api.gax.core.BackgroundResource;
import com.google.api.gax.core.BackgroundResourceAggregation;
import com.google.api.gax.grpc.GrpcCallSettings;
import com.google.api.gax.grpc.GrpcStubCallableFactory;
import com.google.api.gax.rpc.ClientContext;
import com.google.api.gax.rpc.RequestParamsExtractor;
import com.google.api.gax.rpc.ServerStreamingCallable;
import com.google.api.gax.rpc.UnaryCallable;
import com.google.cloud.bigquery.storage.v1beta1.Storage.BatchCreateReadSessionStreamsRequest;
import com.google.cloud.bigquery.storage.v1beta1.Storage.BatchCreateReadSessionStreamsResponse;
import com.google.cloud.bigquery.storage.v1beta1.Storage.CreateReadSessionRequest;
import com.google.cloud.bigquery.storage.v1beta1.Storage.FinalizeStreamRequest;
import com.google.cloud.bigquery.storage.v1beta1.Storage.ReadRowsRequest;
import com.google.cloud.bigquery.storage.v1beta1.Storage.ReadRowsResponse;
import com.google.cloud.bigquery.storage.v1beta1.Storage.ReadSession;
import com.google.cloud.bigquery.storage.v1beta1.Storage.SplitReadStreamRequest;
import com.google.cloud.bigquery.storage.v1beta1.Storage.SplitReadStreamResponse;
import com.google.common.collect.ImmutableMap;
import com.google.protobuf.Empty;
import io.grpc.MethodDescriptor;
import io.grpc.protobuf.ProtoUtils;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import javax.annotation.Generated;
// AUTO-GENERATED DOCUMENTATION AND CLASS
/**
* gRPC stub implementation for BigQuery Storage API.
*
* <p>This class is for advanced usage and reflects the underlying API directly.
*/
@Generated("by gapic-generator")
@BetaApi("A restructuring of stub classes is planned, so this may break in the future")
public class GrpcBigQueryStorageStub extends BigQueryStorageStub {
private static final MethodDescriptor<CreateReadSessionRequest, ReadSession>
createReadSessionMethodDescriptor =
MethodDescriptor.<CreateReadSessionRequest, ReadSession>newBuilder()
.setType(MethodDescriptor.MethodType.UNARY)
.setFullMethodName(
"google.cloud.bigquery.storage.v1beta1.BigQueryStorage/CreateReadSession")
.setRequestMarshaller(
ProtoUtils.marshaller(CreateReadSessionRequest.getDefaultInstance()))
.setResponseMarshaller(ProtoUtils.marshaller(ReadSession.getDefaultInstance()))
.build();
private static final MethodDescriptor<ReadRowsRequest, ReadRowsResponse>
readRowsMethodDescriptor =
MethodDescriptor.<ReadRowsRequest, ReadRowsResponse>newBuilder()
.setType(MethodDescriptor.MethodType.SERVER_STREAMING)
.setFullMethodName("google.cloud.bigquery.storage.v1beta1.BigQueryStorage/ReadRows")
.setRequestMarshaller(ProtoUtils.marshaller(ReadRowsRequest.getDefaultInstance()))
.setResponseMarshaller(ProtoUtils.marshaller(ReadRowsResponse.getDefaultInstance()))
.build();
private static final MethodDescriptor<
BatchCreateReadSessionStreamsRequest, BatchCreateReadSessionStreamsResponse>
batchCreateReadSessionStreamsMethodDescriptor =
MethodDescriptor
.<BatchCreateReadSessionStreamsRequest, BatchCreateReadSessionStreamsResponse>
newBuilder()
.setType(MethodDescriptor.MethodType.UNARY)
.setFullMethodName(
"google.cloud.bigquery.storage.v1beta1.BigQueryStorage/BatchCreateReadSessionStreams")
.setRequestMarshaller(
ProtoUtils.marshaller(BatchCreateReadSessionStreamsRequest.getDefaultInstance()))
.setResponseMarshaller(
ProtoUtils.marshaller(BatchCreateReadSessionStreamsResponse.getDefaultInstance()))
.build();
private static final MethodDescriptor<FinalizeStreamRequest, Empty>
finalizeStreamMethodDescriptor =
MethodDescriptor.<FinalizeStreamRequest, Empty>newBuilder()
.setType(MethodDescriptor.MethodType.UNARY)
.setFullMethodName(
"google.cloud.bigquery.storage.v1beta1.BigQueryStorage/FinalizeStream")
.setRequestMarshaller(
ProtoUtils.marshaller(FinalizeStreamRequest.getDefaultInstance()))
.setResponseMarshaller(ProtoUtils.marshaller(Empty.getDefaultInstance()))
.build();
private static final MethodDescriptor<SplitReadStreamRequest, SplitReadStreamResponse>
splitReadStreamMethodDescriptor =
MethodDescriptor.<SplitReadStreamRequest, SplitReadStreamResponse>newBuilder()
.setType(MethodDescriptor.MethodType.UNARY)
.setFullMethodName(
"google.cloud.bigquery.storage.v1beta1.BigQueryStorage/SplitReadStream")
.setRequestMarshaller(
ProtoUtils.marshaller(SplitReadStreamRequest.getDefaultInstance()))
.setResponseMarshaller(
ProtoUtils.marshaller(SplitReadStreamResponse.getDefaultInstance()))
.build();
private final BackgroundResource backgroundResources;
private final UnaryCallable<CreateReadSessionRequest, ReadSession> createReadSessionCallable;
private final ServerStreamingCallable<ReadRowsRequest, ReadRowsResponse> readRowsCallable;
private final UnaryCallable<
BatchCreateReadSessionStreamsRequest, BatchCreateReadSessionStreamsResponse>
batchCreateReadSessionStreamsCallable;
private final UnaryCallable<FinalizeStreamRequest, Empty> finalizeStreamCallable;
private final UnaryCallable<SplitReadStreamRequest, SplitReadStreamResponse>
splitReadStreamCallable;
private final GrpcStubCallableFactory callableFactory;
public static final GrpcBigQueryStorageStub create(BigQueryStorageStubSettings settings)
throws IOException {
return new GrpcBigQueryStorageStub(settings, ClientContext.create(settings));
}
public static final GrpcBigQueryStorageStub create(ClientContext clientContext)
throws IOException {
return new GrpcBigQueryStorageStub(
BigQueryStorageStubSettings.newBuilder().build(), clientContext);
}
public static final GrpcBigQueryStorageStub create(
ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
return new GrpcBigQueryStorageStub(
BigQueryStorageStubSettings.newBuilder().build(), clientContext, callableFactory);
}
/**
* Constructs an instance of GrpcBigQueryStorageStub, using the given settings. This is protected
* so that it is easy to make a subclass, but otherwise, the static factory methods should be
* preferred.
*/
protected GrpcBigQueryStorageStub(
BigQueryStorageStubSettings settings, ClientContext clientContext) throws IOException {
this(settings, clientContext, new GrpcBigQueryStorageCallableFactory());
}
/**
* Constructs an instance of GrpcBigQueryStorageStub, using the given settings. This is protected
* so that it is easy to make a subclass, but otherwise, the static factory methods should be
* preferred.
*/
protected GrpcBigQueryStorageStub(
BigQueryStorageStubSettings settings,
ClientContext clientContext,
GrpcStubCallableFactory callableFactory)
throws IOException {
this.callableFactory = callableFactory;
GrpcCallSettings<CreateReadSessionRequest, ReadSession> createReadSessionTransportSettings =
GrpcCallSettings.<CreateReadSessionRequest, ReadSession>newBuilder()
.setMethodDescriptor(createReadSessionMethodDescriptor)
.setParamsExtractor(
new RequestParamsExtractor<CreateReadSessionRequest>() {
@Override
public Map<String, String> extract(CreateReadSessionRequest request) {
ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
params.put(
"table_reference.project_id",
String.valueOf(request.getTableReference().getProjectId()));
params.put(
"table_reference.dataset_id",
String.valueOf(request.getTableReference().getDatasetId()));
return params.build();
}
})
.build();
GrpcCallSettings<ReadRowsRequest, ReadRowsResponse> readRowsTransportSettings =
GrpcCallSettings.<ReadRowsRequest, ReadRowsResponse>newBuilder()
.setMethodDescriptor(readRowsMethodDescriptor)
.setParamsExtractor(
new RequestParamsExtractor<ReadRowsRequest>() {
@Override
public Map<String, String> extract(ReadRowsRequest request) {
ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
params.put(
"read_position.stream.name",
String.valueOf(request.getReadPosition().getStream().getName()));
return params.build();
}
})
.build();
GrpcCallSettings<BatchCreateReadSessionStreamsRequest, BatchCreateReadSessionStreamsResponse>
batchCreateReadSessionStreamsTransportSettings =
GrpcCallSettings
.<BatchCreateReadSessionStreamsRequest, BatchCreateReadSessionStreamsResponse>
newBuilder()
.setMethodDescriptor(batchCreateReadSessionStreamsMethodDescriptor)
.setParamsExtractor(
new RequestParamsExtractor<BatchCreateReadSessionStreamsRequest>() {
@Override
public Map<String, String> extract(
BatchCreateReadSessionStreamsRequest request) {
ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
params.put("session.name", String.valueOf(request.getSession().getName()));
return params.build();
}
})
.build();
GrpcCallSettings<FinalizeStreamRequest, Empty> finalizeStreamTransportSettings =
GrpcCallSettings.<FinalizeStreamRequest, Empty>newBuilder()
.setMethodDescriptor(finalizeStreamMethodDescriptor)
.setParamsExtractor(
new RequestParamsExtractor<FinalizeStreamRequest>() {
@Override
public Map<String, String> extract(FinalizeStreamRequest request) {
ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
params.put("stream.name", String.valueOf(request.getStream().getName()));
return params.build();
}
})
.build();
GrpcCallSettings<SplitReadStreamRequest, SplitReadStreamResponse>
splitReadStreamTransportSettings =
GrpcCallSettings.<SplitReadStreamRequest, SplitReadStreamResponse>newBuilder()
.setMethodDescriptor(splitReadStreamMethodDescriptor)
.setParamsExtractor(
new RequestParamsExtractor<SplitReadStreamRequest>() {
@Override
public Map<String, String> extract(SplitReadStreamRequest request) {
ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
params.put(
"original_stream.name",
String.valueOf(request.getOriginalStream().getName()));
return params.build();
}
})
.build();
this.createReadSessionCallable =
callableFactory.createUnaryCallable(
createReadSessionTransportSettings,
settings.createReadSessionSettings(),
clientContext);
this.readRowsCallable =
callableFactory.createServerStreamingCallable(
readRowsTransportSettings, settings.readRowsSettings(), clientContext);
this.batchCreateReadSessionStreamsCallable =
callableFactory.createUnaryCallable(
batchCreateReadSessionStreamsTransportSettings,
settings.batchCreateReadSessionStreamsSettings(),
clientContext);
this.finalizeStreamCallable =
callableFactory.createUnaryCallable(
finalizeStreamTransportSettings, settings.finalizeStreamSettings(), clientContext);
this.splitReadStreamCallable =
callableFactory.createUnaryCallable(
splitReadStreamTransportSettings, settings.splitReadStreamSettings(), clientContext);
backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources());
}
public UnaryCallable<CreateReadSessionRequest, ReadSession> createReadSessionCallable() {
return createReadSessionCallable;
}
public ServerStreamingCallable<ReadRowsRequest, ReadRowsResponse> readRowsCallable() {
return readRowsCallable;
}
public UnaryCallable<BatchCreateReadSessionStreamsRequest, BatchCreateReadSessionStreamsResponse>
batchCreateReadSessionStreamsCallable() {
return batchCreateReadSessionStreamsCallable;
}
public UnaryCallable<FinalizeStreamRequest, Empty> finalizeStreamCallable() {
return finalizeStreamCallable;
}
public UnaryCallable<SplitReadStreamRequest, SplitReadStreamResponse> splitReadStreamCallable() {
return splitReadStreamCallable;
}
@Override
public final void close() {
shutdown();
}
@Override
public void shutdown() {
backgroundResources.shutdown();
}
@Override
public boolean isShutdown() {
return backgroundResources.isShutdown();
}
@Override
public boolean isTerminated() {
return backgroundResources.isTerminated();
}
@Override
public void shutdownNow() {
backgroundResources.shutdownNow();
}
@Override
public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
return backgroundResources.awaitTermination(duration, unit);
}
}