Best Selenium code snippet using org.openqa.selenium.grid.distributor.GridModel.refresh
Source:GridModel.java  
...57    this.events = Require.nonNull("Event bus", events);58    events.addListener(NodeDrainStarted.listener(nodeId -> setAvailability(nodeId, DRAINING)));59    events.addListener(NodeDrainComplete.listener(this::remove));60    events.addListener(NodeRemovedEvent.listener(this::remove));61    events.addListener(NodeStatusEvent.listener(status -> refresh(registrationSecret, status)));62    events.addListener(SessionClosedEvent.listener(this::release));63  }64  public GridModel add(NodeStatus node) {65    Require.nonNull("Node", node);66    Lock writeLock = lock.writeLock();67    writeLock.lock();68    try {69      // If we've already added the node, remove it.70      for (Set<NodeStatus> nodes : nodes.values()) {71        Iterator<NodeStatus> iterator = nodes.iterator();72        while (iterator.hasNext()) {73          NodeStatus next = iterator.next();74          // If the ID is the same, we're re-adding a node. If the URI is the same a node probably restarted75          if (next.getId().equals(node.getId()) || next.getUri().equals(node.getUri())) {76            LOG.info(String.format("Re-adding node with id %s and URI %s.", node.getId(), node.getUri()));77            iterator.remove();78          }79        }80      }81      // Nodes are initially added in the "down" state until something changes their availability82      nodes(DOWN).add(node);83    } finally {84      writeLock.unlock();85    }86    return this;87  }88  public GridModel refresh(Secret registrationSecret, NodeStatus status) {89    Require.nonNull("Node status", status);90    Secret statusSecret = status.getRegistrationSecret() == null ? null : new Secret(status.getRegistrationSecret());91    if (!Objects.equals(registrationSecret, statusSecret)) {92      LOG.severe(String.format("Node at %s failed to send correct registration secret. Node NOT refreshed.", status.getUri()));93      events.fire(new NodeRejectedEvent(status.getUri()));94      return this;95    }96    Lock writeLock = lock.writeLock();97    writeLock.lock();98    try {99      AvailabilityAndNode availabilityAndNode = findNode(status.getId());100      if (availabilityAndNode == null) {101        return this;102      }103      // if the node was marked as "down", keep it down until a healthcheck passes:104      // just because the node can hit the event bus doesn't mean it's reachable105      if (DOWN.equals(availabilityAndNode.availability)) {106        nodes(DOWN).remove(availabilityAndNode.status);...Source:LocalDistributor.java  
...92    this.model = new GridModel(bus, registrationSecret);93    this.nodes = new HashMap<>();94    this.registrationSecret = Require.nonNull("Registration secret", registrationSecret);95    bus.addListener(NodeStatusEvent.listener(this::register));96    bus.addListener(NodeStatusEvent.listener(model::refresh));97    bus.addListener(NodeDrainComplete.listener(this::remove));98  }99  public static Distributor create(Config config) {100    Tracer tracer = new LoggingOptions(config).getTracer();101    EventBus bus = new EventBusOptions(config).getEventBus();102    HttpClient.Factory clientFactory = new NetworkOptions(config).getHttpClientFactory(tracer);103    SessionMap sessions = new SessionMapOptions(config).getSessionMap();104    BaseServerOptions serverOptions = new BaseServerOptions(config);105    return new LocalDistributor(tracer, bus, clientFactory, sessions, serverOptions.getRegistrationSecret());106  }107  @Override108  public boolean isReady() {109    try {110      return ImmutableSet.of(bus, sessions).parallelStream()111        .map(HasReadyState::isReady)112        .reduce(true, Boolean::logicalAnd);113    } catch (RuntimeException e) {114      return false;115    }116  }117  private void register(NodeStatus status) {118    Require.nonNull("Node", status);119    Lock writeLock = lock.writeLock();120    writeLock.lock();121    try {122      if (nodes.containsKey(status.getId())) {123        return;124      }125      Set<Capabilities> capabilities = status.getSlots().stream()126        .map(Slot::getStereotype)127        .map(ImmutableCapabilities::copyOf)128        .collect(toImmutableSet());129      // A new node! Add this as a remote node, since we've not called add130      RemoteNode remoteNode = new RemoteNode(131        tracer,132        clientFactory,133        status.getId(),134        status.getUri(),135        registrationSecret,136        capabilities);137      add(remoteNode);138    } finally {139      writeLock.unlock();140    }141  }142  @Override143  public LocalDistributor add(Node node) {144    Require.nonNull("Node", node);145    LOG.info(String.format("Added node %s at %s.", node.getId(), node.getUri()));146    nodes.put(node.getId(), node);147    model.add(node.getStatus());148    // Extract the health check149    Runnable runnableHealthCheck = asRunnableHealthCheck(node);150    allChecks.put(node.getId(), runnableHealthCheck);151    hostChecker.submit(runnableHealthCheck, Duration.ofMinutes(5), Duration.ofSeconds(30));152    bus.fire(new NodeAddedEvent(node.getId()));153    return this;154  }155  private Runnable asRunnableHealthCheck(Node node) {156    HealthCheck healthCheck = node.getHealthCheck();157    NodeId id = node.getId();158    return () -> {159      HealthCheck.Result result;160      try {161        result = healthCheck.check();162      } catch (Exception e) {163        LOG.log(Level.WARNING, "Unable to process node " + id, e);164        result = new HealthCheck.Result(DOWN, "Unable to run healthcheck. Assuming down");165      }166      Lock writeLock = lock.writeLock();167      writeLock.lock();168      try {169        model.setAvailability(id, result.getAvailability());170      } finally {171        writeLock.unlock();172      }173    };174  }175  @Override176  public boolean drain(NodeId nodeId) {177    Node node = nodes.get(nodeId);178    if (node == null) {179      LOG.info("Asked to drain unregistered node " + nodeId);180      return false;181    }182    Lock writeLock = lock.writeLock();183    writeLock.lock();184    try {185      node.drain();186      model.setAvailability(nodeId, DRAINING);187    } finally {188      writeLock.unlock();189    }190    return node.isDraining();191  }192  public void remove(NodeId nodeId) {193    Lock writeLock = lock.writeLock();194    writeLock.lock();195    try {196      model.remove(nodeId);197      Runnable runnable = allChecks.remove(nodeId);198      if (runnable != null) {199        hostChecker.remove(runnable);200      }201    } finally {202      writeLock.unlock();203      bus.fire(new NodeRemovedEvent(nodeId));204    }205  }206  @Override207  public DistributorStatus getStatus() {208    Lock readLock = this.lock.readLock();209    readLock.lock();210    try {211      return new DistributorStatus(model.getSnapshot());212    } finally {213      readLock.unlock();214    }215  }216  @Beta217  public void refresh() {218    List<Runnable> allHealthChecks = new ArrayList<>();219    Lock readLock = this.lock.readLock();220    readLock.lock();221    try {222      allHealthChecks.addAll(allChecks.values());223    } finally {224      readLock.unlock();225    }226    allHealthChecks.parallelStream().forEach(Runnable::run);227  }228  @Override229  protected Set<NodeStatus> getAvailableNodes() {230    Lock readLock = this.lock.readLock();231    readLock.lock();...refresh
Using AI Code Generation
1package com.seleniumgrid;2import java.net.MalformedURLException;3import java.net.URL;4import java.util.concurrent.TimeUnit;5import org.openqa.selenium.By;6import org.openqa.selenium.WebDriver;7import org.openqa.selenium.WebElement;8import org.openqa.selenium.chrome.ChromeDriver;9import org.openqa.selenium.chrome.ChromeOptions;10import org.openqa.selenium.devtools.DevTools;11import org.openqa.selenium.devtools.v90.network.Network;12import org.openqa.selenium.devtools.v90.network.model.ConnectionType;13import org.openqa.selenium.devtools.v90.network.model.ConnectionTypeChanged;14import org.openqa.selenium.devtools.v90.network.model.Headers;15import org.openqa.selenium.devtools.v90.network.model.Request;16import org.openqa.selenium.devtools.v90.network.model.RequestWillBeSent;17import org.openqa.selenium.devtools.v90.network.model.Response;18import org.openqa.selenium.devtools.v90.network.model.ResponseReceived;19import org.openqa.selenium.devtools.v90.network.model.ResourceType;20import org.openqa.selenium.devtools.v90.network.model.WillSendRequest;21import org.openqa.selenium.devtools.v90.page.Page;22import org.openqa.selenium.grid.distributor.GridModel;23import org.openqa.selenium.grid.distributor.local.LocalDistributor;24import org.openqa.selenium.grid.node.local.LocalNode;25import org.openqa.selenium.grid.sessionmap.local.LocalSessionMap;26import org.openqa.selenium.grid.web.Routable;27import org.openqa.selenium.grid.web.Routes;28import org.openqa.selenium.grid.web.Values;29import org.openqa.selenium.remote.http.HttpMethod;30import org.openqa.selenium.remote.http.HttpRequest;31import org.openqa.selenium.remote.http.HttpResponse;32public class GridModelRefresh {33	public static void main(String[] args) throws MalformedURLException, InterruptedException {34		ChromeOptions options = new ChromeOptions();35		options.setExperimentalOption("w3c", true);36		LocalNode.Builder nodeBuilder = LocalNode.builder(options);37		nodeBuilder.add(new Routable() {38			public void bindTo(Routes routes) {39				routes.get("/ping", (req, res) -> {40					Values values = new Values(req);41					String message = values.get("message").orElse("pong");42					res.setStatus(HttpResponse.Code.OK);43					res.setContent(HttpResponse.asJson(message));44					return res;45				});46			}47		});48		LocalNode node = nodeBuilder.build();49		node.start();50		LocalDistributor.Builder distributorBuilder = LocalDistributor.builder();51		distributorBuilder.add(node);refresh
Using AI Code Generation
1import java.io.IOException;2import java.net.URI;3import java.util.List;4import java.util.concurrent.TimeUnit;5import org.openqa.selenium.Capabilities;6import org.openqa.selenium.ImmutableCapabilities;7import org.openqa.selenium.SessionNotCreatedException;8import org.openqa.selenium.WebDriver;9import org.openqa.selenium.grid.config.Config;10import org.openqa.selenium.grid.config.MapConfig;11import org.openqa.selenium.grid.config.TomlConfig;12import org.openqa.selenium.grid.distributor.Distributor;13import org.openqa.selenium.grid.distributor.local.LocalDistributor;14import org.openqa.selenium.grid.node.local.LocalNode;15import org.openqa.selenium.grid.sessionmap.config.SessionMapOptions;16import org.openqa.selenium.grid.sessionmap.local.LocalSessionMap;17import org.openqa.selenium.grid.web.Routable;18import org.openqa.selenium.internal.Require;19import org.openqa.selenium.net.PortProber;20import org.openqa.selenium.remote.http.HttpClient;21import org.openqa.selenium.remote.tracing.Tracer;22public class GridModelRefresh {23  public static void main(String[] args) throws IOException {24    Tracer tracer = Tracer.getDefault();25    HttpClient.Factory clientFactory = HttpClient.Factory.createDefault();26    Config config = new TomlConfig("config.toml");27    SessionMapOptions sessionMapOptions = new SessionMapOptions(config);28    LocalSessionMap sessions = new LocalSessionMap(tracer, sessionMapOptions);29    LocalDistributor distributor = new LocalDistributor(tracer, sessions, clientFactory);30    int port = PortProber.findFreePort();31    LocalNode node = builder.build();32    distributor.add(node);33    System.out.println("Node status before refresh: " + node.getStatus());34    distributor.refresh(node);35    System.out.println("Node status after refresh: " + node.getStatus());36    node.stop();37  }38}39import java.io.IOException;40import java.net.URI;41import java.util.List;42import java.util.concurrent.TimeUnit;43import org.openqa.selenium.Capabilities;44import org.openqa.selenium.ImmutableCapabilities;45import org.openqa.selenium.SessionNotCreatedException;46import org.openqa.selenium.WebDriver;47import org.openqa.selenium.gridrefresh
Using AI Code Generation
1GridModel gridModel = new GridModel();2gridModel.refresh();3List<RemoteProxy> nodes = gridModel.getNodes();4List<TestSession> sessions = gridModel.getSessions();5List<TestSession> activeSessions = gridModel.getActiveSessions();6List<TestSession> pendingSessions = gridModel.getPendingSessions();7List<TestSession> completedSessions = gridModel.getCompletedSessions();8List<RemoteProxy> proxies = gridModel.getAllProxies();9List<RemoteProxy> activeProxies = gridModel.getActiveProxies();10List<RemoteProxy> inactiveProxies = gridModel.getInactiveProxies();11List<RemoteProxy> busyProxies = gridModel.getBusyProxies();12List<RemoteProxy> availableProxies = gridModel.getAvailableProxies();13RemoteProxy proxyById = gridModel.getProxyById("id");14TestSession sessionById = gridModel.getSessionById("id");15List<TestSession> sessionsByProxyId = gridModel.getSessionsByProxyId("id");16List<TestSession> sessionsByCapabilities = gridModel.getSessionsByCapabilities(new DesiredCapabilities());LambdaTest’s Selenium 4 tutorial is covering every aspects of Selenium 4 testing with examples and best practices. Here you will learn basics, such as how to upgrade from Selenium 3 to Selenium 4, to some advanced concepts, such as Relative locators and Selenium Grid 4 for Distributed testing. Also will learn new features of Selenium 4, such as capturing screenshots of specific elements, opening a new tab or window on the browser, and new protocol adoptions.
Upgrading From Selenium 3 To Selenium 4?: In this chapter, learn in detail how to update Selenium 3 to Selenium 4 for Java binding. Also, learn how to upgrade while using different build tools such as Maven or Gradle and get comprehensive guidance for upgrading Selenium.
What’s New In Selenium 4 & What’s Being Deprecated? : Get all information about new implementations in Selenium 4, such as W3S protocol adaption, Optimized Selenium Grid, and Enhanced Selenium IDE. Also, learn what is deprecated for Selenium 4, such as DesiredCapabilites and FindsBy methods, etc.
Selenium 4 With Python: Selenium supports all major languages, such as Python, C#, Ruby, and JavaScript. In this chapter, learn how to install Selenium 4 for Python and the features of Python in Selenium 4, such as Relative locators, Browser manipulation, and Chrom DevTool protocol.
Selenium 4 Is Now W3C Compliant: JSON Wireframe protocol is retiring from Selenium 4, and they are adopting W3C protocol to learn in detail about the advantages and impact of these changes.
How To Use Selenium 4 Relative Locator? : Selenium 4 came with new features such as Relative Locators that allow constructing locators with reference and easily located constructors nearby. Get to know its different use cases with examples.
Selenium Grid 4 Tutorial For Distributed Testing: Selenium Grid 4 allows you to perform tests over different browsers, OS, and device combinations. It also enables parallel execution browser testing, reads up on various features of Selenium Grid 4 and how to download it, and runs a test on Selenium Grid 4 with best practices.
Selenium Video Tutorials: Binge on video tutorials on Selenium by industry experts to get step-by-step direction from automating basic to complex test scenarios with Selenium.
LambdaTest also provides certification for Selenium testing to accelerate your career in Selenium automation testing.
Get 100 minutes of automation test minutes FREE!!
