| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 |
| * |
| * http://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 org.apache.beam.runners.fnexecution; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.function.Consumer; |
| import org.apache.beam.model.fnexecution.v1.BeamFnApi; |
| import org.apache.beam.model.fnexecution.v1.BeamFnApi.Elements; |
| import org.apache.beam.model.fnexecution.v1.BeamFnDataGrpc; |
| import org.apache.beam.model.pipeline.v1.Endpoints.ApiServiceDescriptor; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.CallOptions; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.Channel; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.ClientCall; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.ClientInterceptor; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.ForwardingClientCall.SimpleForwardingClientCall; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.Metadata; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.MethodDescriptor; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.Server; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.inprocess.InProcessChannelBuilder; |
| import org.apache.beam.vendor.grpc.v1p21p0.io.grpc.stub.StreamObserver; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| import org.mockito.Mockito; |
| |
| /** Tests for {@link GrpcContextHeaderAccessorProvider}. */ |
| @RunWith(JUnit4.class) |
| public class GrpcContextHeaderAccessorProviderTest { |
| @SuppressWarnings("unchecked") |
| @Test |
| public void testWorkerIdOnConnect() throws Exception { |
| final String worker1 = "worker1"; |
| CompletableFuture<String> workerId = new CompletableFuture<>(); |
| Consumer<StreamObserver<Elements>> consumer = |
| elementsStreamObserver -> |
| workerId.complete( |
| GrpcContextHeaderAccessorProvider.getHeaderAccessor().getSdkWorkerId()); |
| TestDataService testService = new TestDataService(Mockito.mock(StreamObserver.class), consumer); |
| ApiServiceDescriptor serviceDescriptor = |
| ApiServiceDescriptor.newBuilder().setUrl("testServer").build(); |
| Server server = |
| InProcessServerFactory.create().create(ImmutableList.of(testService), serviceDescriptor); |
| final Metadata.Key<String> workerIdKey = |
| Metadata.Key.of("worker_id", Metadata.ASCII_STRING_MARSHALLER); |
| Channel channel = |
| InProcessChannelBuilder.forName(serviceDescriptor.getUrl()) |
| .intercept( |
| new ClientInterceptor() { |
| @Override |
| public <ReqT, RespT> ClientCall<ReqT, RespT> interceptCall( |
| MethodDescriptor<ReqT, RespT> method, CallOptions callOptions, Channel next) { |
| ClientCall<ReqT, RespT> call = next.newCall(method, callOptions); |
| return new SimpleForwardingClientCall<ReqT, RespT>(call) { |
| @Override |
| public void start( |
| ClientCall.Listener<RespT> responseListener, Metadata headers) { |
| headers.put(workerIdKey, worker1); |
| super.start(responseListener, headers); |
| } |
| }; |
| } |
| }) |
| .build(); |
| BeamFnDataGrpc.BeamFnDataStub stub = BeamFnDataGrpc.newStub(channel); |
| stub.data(Mockito.mock(StreamObserver.class)); |
| server.shutdown(); |
| |
| Assert.assertEquals(worker1, workerId.get()); |
| } |
| |
| /** A test gRPC service that uses the provided inbound observer for all clients. */ |
| private static class TestDataService extends BeamFnDataGrpc.BeamFnDataImplBase { |
| private final StreamObserver<BeamFnApi.Elements> inboundObserver; |
| private final Consumer<StreamObserver<Elements>> consumer; |
| |
| private TestDataService( |
| StreamObserver<BeamFnApi.Elements> inboundObserver, |
| Consumer<StreamObserver<BeamFnApi.Elements>> consumer) { |
| this.inboundObserver = inboundObserver; |
| this.consumer = consumer; |
| } |
| |
| @Override |
| public StreamObserver<BeamFnApi.Elements> data( |
| StreamObserver<BeamFnApi.Elements> outboundObserver) { |
| consumer.accept(outboundObserver); |
| return inboundObserver; |
| } |
| } |
| } |