org.openqa.selenium.grid.router.httpd.RouterServer Maven / Gradle / Ivy

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// or more contributor license agreements.  See the NOTICE file
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// 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,
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package org.openqa.selenium.grid.router.httpd;

import com.beust.jcommander.JCommander;
import com.beust.jcommander.ParameterException;
import com.google.auto.service.AutoService;
import io.opentelemetry.trace.Tracer;
import org.openqa.selenium.BuildInfo;
import org.openqa.selenium.cli.CliCommand;
import org.openqa.selenium.grid.config.AnnotatedConfig;
import org.openqa.selenium.grid.config.CompoundConfig;
import org.openqa.selenium.grid.config.ConcatenatingConfig;
import org.openqa.selenium.grid.config.Config;
import org.openqa.selenium.grid.config.EnvConfig;
import org.openqa.selenium.grid.distributor.Distributor;
import org.openqa.selenium.grid.distributor.config.DistributorFlags;
import org.openqa.selenium.grid.distributor.config.DistributorOptions;
import org.openqa.selenium.grid.log.LoggingOptions;
import org.openqa.selenium.grid.router.Router;
import org.openqa.selenium.grid.server.BaseServerFlags;
import org.openqa.selenium.grid.server.BaseServerOptions;
import org.openqa.selenium.grid.server.HelpFlags;
import org.openqa.selenium.grid.server.NetworkOptions;
import org.openqa.selenium.grid.server.Server;
import org.openqa.selenium.grid.sessionmap.SessionMap;
import org.openqa.selenium.grid.sessionmap.config.SessionMapFlags;
import org.openqa.selenium.grid.sessionmap.config.SessionMapOptions;
import org.openqa.selenium.netty.server.NettyServer;
import org.openqa.selenium.remote.http.HttpClient;

import java.util.logging.Logger;

@AutoService(CliCommand.class)
public class RouterServer implements CliCommand {

  private static final Logger LOG = Logger.getLogger(RouterServer.class.getName());

  @Override
  public String getName() {
    return "router";
  }

  @Override
  public String getDescription() {
    return "Creates a router to front the selenium grid.";
  }

  @Override
  public Executable configure(String... args) {

    HelpFlags help = new HelpFlags();
    BaseServerFlags serverFlags = new BaseServerFlags(4444);
    SessionMapFlags sessionMapFlags = new SessionMapFlags();
    DistributorFlags distributorFlags = new DistributorFlags();

    JCommander commander = JCommander.newBuilder()
        .programName(getName())
        .addObject(help)
        .addObject(serverFlags)
        .addObject(sessionMapFlags)
        .addObject(distributorFlags)
        .build();

    return () -> {
      try {
        commander.parse(args);
      } catch (ParameterException e) {
        System.err.println(e.getMessage());
        commander.usage();
        return;
      }

      if (help.displayHelp(commander, System.out)) {
        return;
      }

      Config config = new CompoundConfig(
          new EnvConfig(),
          new ConcatenatingConfig("router", '.', System.getProperties()),
          new AnnotatedConfig(help),
          new AnnotatedConfig(serverFlags),
          new AnnotatedConfig(sessionMapFlags),
          new AnnotatedConfig(distributorFlags));

      LoggingOptions loggingOptions = new LoggingOptions(config);
      loggingOptions.configureLogging();
      Tracer tracer = loggingOptions.getTracer();

      NetworkOptions networkOptions = new NetworkOptions(config);
      HttpClient.Factory clientFactory = networkOptions.getHttpClientFactory(tracer);

      SessionMapOptions sessionsOptions = new SessionMapOptions(config);
      SessionMap sessions = sessionsOptions.getSessionMap();

      BaseServerOptions serverOptions = new BaseServerOptions(config);

      DistributorOptions distributorOptions = new DistributorOptions(config);
      Distributor distributor = distributorOptions.getDistributor(tracer, clientFactory);

      Router router = new Router(tracer, clientFactory, sessions, distributor);

      Server server = new NettyServer(serverOptions, router);
      server.start();

      BuildInfo info = new BuildInfo();
      LOG.info(String.format("Started Selenium router %s (revision %s)", info.getReleaseLabel(), info.getBuildRevision()));
    };
  }
}