java - 使用Java的Selenium : Start Hub Server and register Nodes with Hub

Question

我是 selenium 的新手，我一直在尝试启动 Selenium Hub 并使用 java 将节点添加到 Hub。我已使用命令提示符启动它，但我希望它自行发生。我能够启动 Hub，但不知道如何添加节点。

以下是我启动 Hub 的代码:

import org.openqa.grid.internal.utils.configuration.GridHubConfiguration;
import org.openqa.grid.internal.utils.configuration.GridNodeConfiguration;
import org.openqa.grid.web.Hub;

public class StartHub {

    public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        GridHubConfiguration configHub = new GridHubConfiguration();
        configHub.host = "localhost";
        configHub.port = 8060;

        //GridNodeConfiguration configNode = new GridNodeConfiguration();
        //configNode.host = configHub.host;
        //configNode.port = 5300;

        Hub hub = new Hub(configHub);
        //configNode.getHubHost();
        hub.start();

        //System.out.println(configNode.getRemoteHost());

        //hub.stop();
    }

}

如何添加节点？

Answer 1

<小时/>

Selenium-Grid 服务器版本 2.x.x 配置。

Their Packages list

« org.openqa.grid.internal.utils.GridHubConfiguration;
« org.openqa.selenium.server.SeleniumServer;

集线器 Grid HUB Running as a standalone server :集线器是一个中心点，它将测试分布在多个节点机器上，这些节点机器注册到它以并行执行。

使用 GRID HUB 服务器:

• 将测试分布在多台机器或虚拟机 (VM) 上。
• 您想要连接到的远程计算机的特定浏览器版本不在您当前的计算机上。

Start HUB Server

• loadFromCommandLine(String[] args) - Go through my previous post.
• loadFromJSON(String resource) - resource default/DefaultHub.json for instance

public class Grid_HUBServer {

    public static String HUBIP = GRIDINFO.HOSTIP.toString();
    public static Integer HUBPORT = 4444;
    static String separator = "\n------------------------\n";

    public static void hubServer() {
        try {
            GridHubConfiguration gridHubConfig = new GridHubConfiguration();
            gridHubConfig.setHost( HUBIP );
            gridHubConfig.setPort( HUBPORT );
            gridHubConfig.setNewSessionWaitTimeout( 50000 );
            File JOSNFile = new File(System.getProperty("user.dir")+"/gridHub.json" );
            gridHubConfig.loadFromJSON( JOSNFile.toString() );


            Hub hub = new Hub(gridHubConfig);
            hub.start();

            System.out.println("Nodes should register to " + hub.getRegistrationURL());
            System.out.format("%s Running as a grid hub: %s\n" +
                    "Console URL : %s/grid/console \n", separator,separator,hub.getUrl());

            System.out.println("Please Enter to stop service.");
            System.in.read();
            System.in.read();

            hub.stop();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        hubServer();
    }
}

NODE [RC] 必须向 HUB 发送请求才能通过此 URL - IP:Port//grid/register 进行注册.

public class Grid_NODEServer extends Grid_HUBServer {
    static Integer NODEPORT = 5555;
    static String PROXYCLASS = "org.openqa.grid.selenium.proxy.DefaultRemoteProxy";

    public static void nodeServer() {
        try {
            System.setProperty(ChromeDriverService.CHROME_DRIVER_EXE_PROPERTY, CHROME_DRIVER_EXE );
            System.setProperty(InternetExplorerDriverService.IE_DRIVER_EXE_PROPERTY, IE_DRIVER_EXE);


            RegistrationRequest request = new RegistrationRequest();
            request.setRole( GridRole.NODE );
            File JOSNFile = new File(System.getProperty("user.dir")+"/registerNode.json" );
            request.loadFromJSON( JOSNFile.toString() );

            Map<String, Object> configuration = new HashMap<String, Object>();

            URL remoteURL = new URL(String.format("http://%s:%d", HUBIP, HUBPORT) );
            System.out.println("Remote URL : "+remoteURL);
            configuration.put(RegistrationRequest.AUTO_REGISTER, true);
            configuration.put(RegistrationRequest.HUB_HOST, HUBIP);
            configuration.put(RegistrationRequest.HUB_PORT, HUBPORT);
            configuration.put(RegistrationRequest.REMOTE_HOST, remoteURL);

            configuration.put(RegistrationRequest.PORT, NODEPORT);

            configuration.put(RegistrationRequest.PROXY_CLASS, PROXYCLASS);
            configuration.put(RegistrationRequest.MAX_SESSION, 1);
            //configuration.put(RegistrationRequest.CLEAN_UP_CYCLE, 2000);
            //configuration.put(RegistrationRequest.MAX_INSTANCES, 1);

            request.setConfiguration( configuration );
            GridNodeServer node = new SeleniumServer( request.getConfiguration() );

            SelfRegisteringRemote remote = new SelfRegisteringRemote( request );
            remote.setRemoteServer( node );
            remote.startRemoteServer();
            System.out.format("Selenium Grid node is up and ready to register to the hub " +
                    "%s Running as a grid node: %s ", separator,separator);
            remote.startRegistrationProcess();

            System.out.println("Please Enter to stop service.");
            System.in.read();
            System.in.read();

            remote.stopRemoteServer();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        nodeServer();
    }
}

Selenium-Grid - HUB 和 NODE 的 JSON 配置文件为 gridHub.json , registerNode.json实例化。

{
  "host": null,
  "port": 4444,
  "newSessionWaitTimeout": -1,
  "servlets" : [],
  "prioritizer": null,
  "capabilityMatcher": "org.openqa.grid.internal.utils.DefaultCapabilityMatcher",
  "throwOnCapabilityNotPresent": true,
  "nodePolling": 5000,

  "cleanUpCycle": 5000,
  "timeout": 300000,
  "browserTimeout": 1800000,
  "maxSession": 5,
  "jettyMaxThreads":-1
}

{
  "capabilities":
      [
        {
          "browserName": "firefox",
          "version": "39.0",
          "firefox_binary": "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe",
          "maxInstances": 5,
          "seleniumProtocol": "WebDriver"
        },
        {
          "browserName": "chrome",
          "version": "54.0",
          "maxInstances": 5,
          "seleniumProtocol": "WebDriver"
        },
        {
          "browserName": "internet explorer",
          "version": "11",
          "maxInstances": 1,
          "seleniumProtocol": "WebDriver"
        }
      ],
  "configuration":
  {
    "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
    "role": "node",
    "host": "127.0.0.1",
    "port": 5555,

    "maxSession": 5,
    "cleanUpCycle":2000,
    "registerCycle": 10000,
    "nodeTimeout":120,
    "nodePolling":2000,

    "register": true,
    "hubPort": 4444,
    "hubHost": "127.0.0.1"
  }
}

<小时/>

Selenium-Grid 服务器版本 3.x.x (>= beta4) configuration .

Their packages list - (org.seleniumhq.jetty9.server.Server)

« org.openqa.grid.internal.utils.configuration.GridHubConfiguration;
« org.openqa.selenium.remote.server.SeleniumServer;
« org.openqa.grid.internal.utils.configuration.GridNodeConfiguration;

//  HUB Configuration - org.openqa.grid.internal.utils.configuration.GridHubConfiguration
GridHubConfiguration gridHubConfig = new GridHubConfiguration();
gridHubConfig.host = HUBIP;
gridHubConfig.port = HUBPORT;
gridHubConfig.newSessionWaitTimeout = 50000;
File JOSNFile = new File(System.getProperty("user.dir")+"/gridHub.json" );
gridHubConfig.loadFromJSON( JOSNFile.toString() );

Hub hub = new Hub(gridHubConfig);
hub.start();

// NODE Configuration - org.openqa.selenium.remote.server.SeleniumServer
GridNodeConfiguration configuration = new GridNodeConfiguration();

File JOSNFile = new File(System.getProperty("user.dir")+"/registerNode2.json" );
configuration.loadFromJSON( JOSNFile.toString() );
configuration.role = GridRole.NODE.name();

URL remoteURL = new URL(String.format("http://%s:%d", HUBIP, HUBPORT) );
System.out.println("Remote URL : "+remoteURL);
RegistrationRequest request = new RegistrationRequest( configuration );

GridNodeServer node = new SeleniumServer( request.getConfiguration() );

SelfRegisteringRemote remote = new SelfRegisteringRemote( request );
remote.setRemoteServer( node );
remote.startRemoteServer();
remote.startRegistrationProcess();

使用不同的 JSON 格式来克服异常 - org.openqa.grid.common.exception.GridConfigurationException:配置的 JSON 错误:遇到已弃用的 -nodeConfig 文件。

registerNode2.json

{
    "capabilities": [ ... ],

    "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
    "role": "node",
    "host": "127.0.0.1",
    "port": 5555,

    "maxSession": 5,
    "cleanUpCycle":2000,
    "registerCycle": 5000,
    "nodePolling": 5000,
    "nodeStatusCheckTimeout": 5000,
    "unregisterIfStillDownAfter": 60000,
    "downPollingLimit": 2,
    "debug": false,

    "register": true,
    "hub": "http://localhost:4444",
    "servlets" : [],
    "withoutServlets": [],
    "custom": {}
}