| /* |
| * 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.direct.portable.job; |
| |
| import java.io.IOException; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| import org.apache.beam.model.pipeline.v1.Endpoints.ApiServiceDescriptor; |
| import org.apache.beam.runners.fnexecution.GrpcFnServer; |
| import org.apache.beam.runners.fnexecution.ServerFactory; |
| import org.kohsuke.args4j.CmdLineException; |
| import org.kohsuke.args4j.CmdLineParser; |
| import org.kohsuke.args4j.Option; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** A program that runs a {@link ReferenceRunnerJobService}. */ |
| public class ReferenceRunnerJobServer { |
| private static final Logger LOG = LoggerFactory.getLogger(ReferenceRunnerJobServer.class); |
| private final ServerConfiguration configuration; |
| private GrpcFnServer<ReferenceRunnerJobService> server; |
| |
| private ReferenceRunnerJobServer(ServerConfiguration configuration) { |
| this.configuration = configuration; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| try { |
| runServer(parseConfiguration(args)); |
| } catch (CmdLineException ignored) { |
| } |
| } |
| |
| private static ServerConfiguration parseConfiguration(String[] args) throws CmdLineException { |
| ServerConfiguration configuration = new ServerConfiguration(); |
| CmdLineParser parser = new CmdLineParser(configuration); |
| try { |
| parser.parseArgument(args); |
| } catch (CmdLineException e) { |
| e.printStackTrace(System.err); |
| printUsage(parser); |
| throw e; |
| } |
| return configuration; |
| } |
| |
| private static void printUsage(CmdLineParser parser) { |
| System.err.println( |
| String.format( |
| "Usage: java %s arguments...", ReferenceRunnerJobService.class.getSimpleName())); |
| parser.printUsage(System.err); |
| System.err.println(); |
| } |
| |
| private static void runServer(ServerConfiguration configuration) throws Exception { |
| ServerFactory serverFactory = ServerFactory.createDefault(); |
| ReferenceRunnerJobService.Configuration jobServiceConfig = |
| createJobServiceConfig(configuration); |
| ReferenceRunnerJobService service = |
| ReferenceRunnerJobService.create(serverFactory, jobServiceConfig); |
| try (GrpcFnServer<ReferenceRunnerJobService> server = |
| createServer(configuration, serverFactory, service)) { |
| System.out.println( |
| String.format( |
| "Started %s at %s", |
| ReferenceRunnerJobService.class.getSimpleName(), |
| server.getApiServiceDescriptor().getUrl())); |
| server.getServer().awaitTermination(); |
| } |
| System.out.println("Server shut down, exiting"); |
| } |
| |
| public static ReferenceRunnerJobServer fromParams(String[] args) { |
| try { |
| return new ReferenceRunnerJobServer(parseConfiguration(args)); |
| } catch (CmdLineException e) { |
| throw new IllegalArgumentException( |
| "Unable to parse command line arguments " + Arrays.asList(args), e); |
| } |
| } |
| |
| public String start() throws Exception { |
| ServerFactory serverFactory = ServerFactory.createDefault(); |
| ReferenceRunnerJobService.Configuration jobServiceConfig = |
| createJobServiceConfig(configuration); |
| server = |
| createServer( |
| configuration, |
| serverFactory, |
| ReferenceRunnerJobService.create(serverFactory, jobServiceConfig)); |
| |
| return server.getApiServiceDescriptor().getUrl(); |
| } |
| |
| public void stop() { |
| if (server != null) { |
| try { |
| server.close(); |
| } catch (Exception e) { |
| LOG.error("Unable to stop job server.", e); |
| } |
| } |
| } |
| |
| private static GrpcFnServer<ReferenceRunnerJobService> createServer( |
| ServerConfiguration configuration, |
| ServerFactory serverFactory, |
| ReferenceRunnerJobService service) |
| throws IOException { |
| if (configuration.port <= 0) { |
| return GrpcFnServer.allocatePortAndCreateFor(service, serverFactory); |
| } |
| return GrpcFnServer.create( |
| service, |
| ApiServiceDescriptor.newBuilder().setUrl("localhost:" + configuration.port).build(), |
| serverFactory); |
| } |
| |
| /** |
| * Helper function to fill out a {@code ReferenceRunnerJobService.Configuration Configuration} |
| * object for {@code ReferenceRunnerJobService}. |
| */ |
| private static ReferenceRunnerJobService.Configuration createJobServiceConfig( |
| ServerConfiguration configuration) { |
| ReferenceRunnerJobService.Configuration jobServiceConfig = |
| new ReferenceRunnerJobService.Configuration(); |
| jobServiceConfig.artifactStagingPath = configuration.artifactStagingPath; |
| jobServiceConfig.keepArtifacts = configuration.keepArtifacts; |
| return jobServiceConfig; |
| } |
| |
| /** Command-line options to configure the JobServer. */ |
| public static class ServerConfiguration { |
| @Option( |
| name = "-p", |
| aliases = {"--port"}, |
| usage = "The local port to expose the server on. 0 to use a dynamic port. (Default: 8099)") |
| private int port = 8099; |
| |
| @Option(name = "--artifacts-dir", usage = "The location to store staged artifact files") |
| String artifactStagingPath = |
| Paths.get(System.getProperty("java.io.tmpdir"), "beam-artifact-staging").toString(); |
| |
| @Option( |
| name = "--keep-artifacts", |
| usage = "When enabled, do not delete staged artifacts when a job completes") |
| boolean keepArtifacts; |
| } |
| } |