| /* |
| * 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.jobsubmission; |
| |
| import java.io.IOException; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ThreadFactory; |
| import javax.annotation.Nullable; |
| import org.apache.beam.model.pipeline.v1.RunnerApi; |
| import org.apache.beam.vendor.grpc.v1p21p0.com.google.protobuf.Struct; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.util.concurrent.ListeningExecutorService; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.util.concurrent.MoreExecutors; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.util.concurrent.ThreadFactoryBuilder; |
| |
| /** Factory to create {@link JobInvocation} instances. */ |
| public abstract class JobInvoker { |
| |
| private final ListeningExecutorService executorService; |
| |
| /** Start running a job, abstracting its state as a {@link JobInvocation} instance. */ |
| protected abstract JobInvocation invokeWithExecutor( |
| RunnerApi.Pipeline pipeline, |
| Struct options, |
| @Nullable String retrievalToken, |
| ListeningExecutorService executorService) |
| throws IOException; |
| |
| JobInvocation invoke(RunnerApi.Pipeline pipeline, Struct options, @Nullable String retrievalToken) |
| throws IOException { |
| return invokeWithExecutor(pipeline, options, retrievalToken, this.executorService); |
| } |
| |
| private ListeningExecutorService createExecutorService(String name) { |
| ThreadFactory threadFactory = |
| new ThreadFactoryBuilder().setNameFormat(name).setDaemon(true).build(); |
| return MoreExecutors.listeningDecorator(Executors.newCachedThreadPool(threadFactory)); |
| } |
| |
| protected JobInvoker(String name) { |
| this.executorService = createExecutorService(name); |
| } |
| } |