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How to use RetrySessionRequestException class of org.openqa.selenium package

Best Selenium code snippet using org.openqa.selenium.RetrySessionRequestException

Source:SauceNode.java

...27import org.openqa.selenium.Capabilities;28import org.openqa.selenium.ImmutableCapabilities;29import org.openqa.selenium.NoSuchSessionException;30import org.openqa.selenium.PersistentCapabilities;31import org.openqa.selenium.RetrySessionRequestException;32import org.openqa.selenium.WebDriverException;33import org.openqa.selenium.concurrent.Regularly;34import org.openqa.selenium.events.EventBus;35import org.openqa.selenium.grid.data.Availability;36import org.openqa.selenium.grid.data.CreateSessionRequest;37import org.openqa.selenium.grid.data.CreateSessionResponse;38import org.openqa.selenium.grid.data.NodeDrainComplete;39import org.openqa.selenium.grid.data.NodeDrainStarted;40import org.openqa.selenium.grid.data.NodeHeartBeatEvent;41import org.openqa.selenium.grid.data.NodeId;42import org.openqa.selenium.grid.data.NodeStatus;43import org.openqa.selenium.grid.data.Session;44import org.openqa.selenium.grid.data.SessionClosedEvent;45import org.openqa.selenium.grid.data.Slot;46import org.openqa.selenium.grid.data.SlotId;47import org.openqa.selenium.grid.jmx.JMXHelper;48import org.openqa.selenium.grid.jmx.ManagedAttribute;49import org.openqa.selenium.grid.jmx.ManagedService;50import org.openqa.selenium.grid.node.ActiveSession;51import org.openqa.selenium.grid.node.HealthCheck;52import org.openqa.selenium.grid.node.Node;53import org.openqa.selenium.grid.node.SessionFactory;54import org.openqa.selenium.grid.node.config.NodeOptions;55import org.openqa.selenium.grid.node.docker.DockerAssetsPath;56import org.openqa.selenium.grid.node.local.LocalNode;57import org.openqa.selenium.grid.node.local.SessionSlot;58import org.openqa.selenium.grid.security.Secret;59import org.openqa.selenium.internal.Debug;60import org.openqa.selenium.internal.Either;61import org.openqa.selenium.internal.Require;62import org.openqa.selenium.io.TemporaryFilesystem;63import org.openqa.selenium.io.Zip;64import org.openqa.selenium.json.Json;65import org.openqa.selenium.remote.SessionId;66import org.openqa.selenium.remote.http.HttpMethod;67import org.openqa.selenium.remote.http.HttpRequest;68import org.openqa.selenium.remote.http.HttpResponse;69import org.openqa.selenium.remote.tracing.AttributeKey;70import org.openqa.selenium.remote.tracing.EventAttribute;71import org.openqa.selenium.remote.tracing.EventAttributeValue;72import org.openqa.selenium.remote.tracing.Span;73import org.openqa.selenium.remote.tracing.Status;74import org.openqa.selenium.remote.tracing.Tracer;75import java.io.File;76import java.io.IOException;77import java.io.InputStreamReader;78import java.io.UncheckedIOException;79import java.net.URI;80import java.net.URISyntaxException;81import java.nio.file.Files;82import java.nio.file.Paths;83import java.nio.file.StandardCopyOption;84import java.time.Duration;85import java.time.Instant;86import java.util.Collections;87import java.util.HashMap;88import java.util.List;89import java.util.Map;90import java.util.Optional;91import java.util.Set;92import java.util.UUID;93import java.util.concurrent.ExecutionException;94import java.util.concurrent.atomic.AtomicInteger;95import java.util.logging.Level;96import java.util.logging.Logger;97import java.util.stream.Collectors;98@ManagedService(objectName = "com.saucelabs.grid:type=Node,name=SauceNode",99  description = "SauceNode running the webdriver sessions and uploading results to Sauce.")100public class SauceNode extends Node {101  private static final Logger LOG = Logger.getLogger(LocalNode.class.getName());102  private final EventBus bus;103  private final URI externalUri;104  private final URI gridUri;105  private final Duration heartbeatPeriod;106  private final HealthCheck healthCheck;107  private final int maxSessionCount;108  private final List<SessionSlot> factories;109  private final Cache<SessionId, SessionSlot> currentSessions;110  private final Cache<SessionId, TemporaryFilesystem> tempFileSystems;111  private final AtomicInteger pendingSessions = new AtomicInteger();112  private SauceNode(113    Tracer tracer,114    EventBus bus,115    URI uri,116    URI gridUri,117    HealthCheck healthCheck,118    int maxSessionCount,119    Ticker ticker,120    Duration sessionTimeout,121    Duration heartbeatPeriod,122    List<SessionSlot> factories,123    Secret registrationSecret) {124    super(tracer, new NodeId(UUID.randomUUID()), uri, registrationSecret);125    this.bus = Require.nonNull("Event bus", bus);126    this.externalUri = Require.nonNull("Remote node URI", uri);127    this.gridUri = Require.nonNull("Grid URI", gridUri);128    this.maxSessionCount = Math.min(Require.positive("Max session count", maxSessionCount), factories.size());129    this.heartbeatPeriod = heartbeatPeriod;130    this.factories = ImmutableList.copyOf(factories);131    Require.nonNull("Registration secret", registrationSecret);132    this.healthCheck = healthCheck == null ?133                       () -> new HealthCheck.Result(134                         isDraining() ? DRAINING : UP,135                         String.format("%s is %s", uri, isDraining() ? "draining" : "up")) :136                       healthCheck;137    this.currentSessions = CacheBuilder.newBuilder()138      .expireAfterAccess(sessionTimeout)139      .ticker(ticker)140      .removalListener((RemovalListener<SessionId, SessionSlot>) notification -> {141        // Attempt to stop the session142        LOG.log(Debug.getDebugLogLevel(), "Stopping session {0}", notification.getKey().toString());143        SessionSlot slot = notification.getValue();144        if (!slot.isAvailable()) {145          slot.stop();146        }147      })148      .build();149    this.tempFileSystems = CacheBuilder.newBuilder()150      .expireAfterAccess(sessionTimeout)151      .ticker(ticker)152      .removalListener((RemovalListener<SessionId, TemporaryFilesystem>) notification -> {153        TemporaryFilesystem tempFS = notification.getValue();154        tempFS.deleteTemporaryFiles();155        tempFS.deleteBaseDir();156      })157      .build();158    Regularly sessionCleanup = new Regularly("Session Cleanup Node: " + externalUri);159    sessionCleanup.submit(currentSessions::cleanUp, Duration.ofSeconds(30), Duration.ofSeconds(30));160    Regularly tmpFileCleanup = new Regularly("TempFile Cleanup Node: " + externalUri);161    tmpFileCleanup.submit(tempFileSystems::cleanUp, Duration.ofSeconds(30), Duration.ofSeconds(30));162    Regularly regularHeartBeat = new Regularly("Heartbeat Node: " + externalUri);163    regularHeartBeat.submit(() -> bus.fire(new NodeHeartBeatEvent(getStatus())), heartbeatPeriod,164                            heartbeatPeriod);165    bus.addListener(SessionClosedEvent.listener(id -> {166      // Listen to session terminated events so we know when to fire the NodeDrainComplete event167      if (this.isDraining()) {168        int done = pendingSessions.decrementAndGet();169        if (done <= 0) {170          LOG.info("Firing node drain complete message");171          bus.fire(new NodeDrainComplete(this.getId()));172        }173      }174    }));175    Runtime.getRuntime().addShutdownHook(new Thread(this::stopAllSessions));176    new JMXHelper().register(this);177  }178  public static SauceNode.Builder builder(179    Tracer tracer,180    EventBus bus,181    URI uri,182    URI gridUri,183    Secret registrationSecret) {184    return new SauceNode.Builder(tracer, bus, uri, gridUri, registrationSecret);185  }186  @Override187  public boolean isReady() {188    return bus.isReady();189  }190  @VisibleForTesting191  public int getCurrentSessionCount() {192    // It seems wildly unlikely we'll overflow an int193    return Math.toIntExact(currentSessions.size());194  }195  @ManagedAttribute(name = "MaxSessions")196  public int getMaxSessionCount() {197    return maxSessionCount;198  }199  @ManagedAttribute(name = "Status")200  public Availability getAvailability() {201    return isDraining() ? DRAINING : UP;202  }203  @ManagedAttribute(name = "TotalSlots")204  public int getTotalSlots() {205    return factories.size();206  }207  @ManagedAttribute(name = "UsedSlots")208  public long getUsedSlots() {209    return factories.stream().filter(sessionSlot -> !sessionSlot.isAvailable()).count();210  }211  @ManagedAttribute(name = "Load")212  public float getLoad() {213    long inUse = factories.stream().filter(sessionSlot -> !sessionSlot.isAvailable()).count();214    return inUse / (float) maxSessionCount * 100f;215  }216  @ManagedAttribute(name = "RemoteNodeUri")217  public URI getExternalUri() {218    return this.getUri();219  }220  @ManagedAttribute(name = "GridUri")221  public URI getGridUri() {222    return this.gridUri;223  }224  @ManagedAttribute(name = "NodeId")225  public String getNodeId() {226    return getId().toString();227  }228  @Override229  public boolean isSupporting(Capabilities capabilities) {230    return factories.parallelStream().anyMatch(factory -> factory.test(capabilities));231  }232  @Override233  public Either<WebDriverException, CreateSessionResponse> newSession(CreateSessionRequest sessionRequest) {234    Require.nonNull("Session request", sessionRequest);235    try (Span span = tracer.getCurrentContext().createSpan("node.new_session")) {236      Map<String, EventAttributeValue> attributeMap = new HashMap<>();237      attributeMap238        .put(AttributeKey.LOGGER_CLASS.getKey(), EventAttribute.setValue(getClass().getName()));239      LOG.fine("Creating new session using span: " + span);240      attributeMap.put("session.request.capabilities",241                       EventAttribute.setValue(sessionRequest.getDesiredCapabilities().toString()));242      attributeMap.put("session.request.downstreamdialect",243                       EventAttribute.setValue(sessionRequest.getDownstreamDialects().toString()));244      int currentSessionCount = getCurrentSessionCount();245      span.setAttribute("current.session.count", currentSessionCount);246      attributeMap.put("current.session.count", EventAttribute.setValue(currentSessionCount));247      if (getCurrentSessionCount() >= maxSessionCount) {248        span.setAttribute("error", true);249        span.setStatus(Status.RESOURCE_EXHAUSTED);250        attributeMap.put("max.session.count", EventAttribute.setValue(maxSessionCount));251        span.addEvent("Max session count reached", attributeMap);252        return Either.left(new RetrySessionRequestException("Max session count reached."));253      }254      if (isDraining()) {255        span.setStatus(Status.UNAVAILABLE.withDescription("The node is draining. Cannot accept new sessions."));256        return Either.left(257          new RetrySessionRequestException("The node is draining. Cannot accept new sessions."));258      }259      // Identify possible slots to use as quickly as possible to enable concurrent session starting260      SessionSlot slotToUse = null;261      synchronized(factories) {262        for (SessionSlot factory : factories) {263          if (!factory.isAvailable() || !factory.test(sessionRequest.getDesiredCapabilities())) {264            continue;265          }266          factory.reserve();267          slotToUse = factory;268          break;269        }270      }271      if (slotToUse == null) {272        span.setAttribute("error", true);273        span.setStatus(Status.NOT_FOUND);274        span.addEvent("No slot matched capabilities ", attributeMap);275        return Either.left(276          new RetrySessionRequestException("No slot matched the requested capabilities."));277      }278      Either<WebDriverException, ActiveSession> possibleSession = slotToUse.apply(sessionRequest);279      if (possibleSession.isRight()) {280        ActiveSession session = possibleSession.right();281        currentSessions.put(session.getId(), slotToUse);282        SessionId sessionId = session.getId();283        Capabilities caps = session.getCapabilities();284        SESSION_ID.accept(span, sessionId);285        CAPABILITIES.accept(span, caps);286        String downstream = session.getDownstreamDialect().toString();287        String upstream = session.getUpstreamDialect().toString();288        String sessionUri = session.getUri().toString();289        span.setAttribute(AttributeKey.DOWNSTREAM_DIALECT.getKey(), downstream);290        span.setAttribute(AttributeKey.UPSTREAM_DIALECT.getKey(), upstream);...

Source:LocalNode.java

...25import org.openqa.selenium.Capabilities;26import org.openqa.selenium.ImmutableCapabilities;27import org.openqa.selenium.NoSuchSessionException;28import org.openqa.selenium.PersistentCapabilities;29import org.openqa.selenium.RetrySessionRequestException;30import org.openqa.selenium.WebDriverException;31import org.openqa.selenium.concurrent.Regularly;32import org.openqa.selenium.events.EventBus;33import org.openqa.selenium.grid.data.Availability;34import org.openqa.selenium.grid.data.CreateSessionRequest;35import org.openqa.selenium.grid.data.CreateSessionResponse;36import org.openqa.selenium.grid.data.NodeAddedEvent;37import org.openqa.selenium.grid.data.NodeDrainComplete;38import org.openqa.selenium.grid.data.NodeDrainStarted;39import org.openqa.selenium.grid.data.NodeHeartBeatEvent;40import org.openqa.selenium.grid.data.NodeId;41import org.openqa.selenium.grid.data.NodeStatus;42import org.openqa.selenium.grid.data.Session;43import org.openqa.selenium.grid.data.SessionClosedEvent;44import org.openqa.selenium.grid.data.Slot;45import org.openqa.selenium.grid.data.SlotId;46import org.openqa.selenium.grid.jmx.JMXHelper;47import org.openqa.selenium.grid.jmx.ManagedAttribute;48import org.openqa.selenium.grid.jmx.ManagedService;49import org.openqa.selenium.grid.node.ActiveSession;50import org.openqa.selenium.grid.node.HealthCheck;51import org.openqa.selenium.grid.node.Node;52import org.openqa.selenium.grid.node.SessionFactory;53import org.openqa.selenium.grid.node.config.NodeOptions;54import org.openqa.selenium.grid.security.Secret;55import org.openqa.selenium.internal.Either;56import org.openqa.selenium.internal.Require;57import org.openqa.selenium.io.TemporaryFilesystem;58import org.openqa.selenium.io.Zip;59import org.openqa.selenium.json.Json;60import org.openqa.selenium.remote.SessionId;61import org.openqa.selenium.remote.http.HttpRequest;62import org.openqa.selenium.remote.http.HttpResponse;63import org.openqa.selenium.remote.tracing.AttributeKey;64import org.openqa.selenium.remote.tracing.EventAttribute;65import org.openqa.selenium.remote.tracing.EventAttributeValue;66import org.openqa.selenium.remote.tracing.Span;67import org.openqa.selenium.remote.tracing.Status;68import org.openqa.selenium.remote.tracing.Tracer;69import java.io.File;70import java.io.IOException;71import java.io.UncheckedIOException;72import java.net.URI;73import java.net.URISyntaxException;74import java.time.Clock;75import java.time.Duration;76import java.time.Instant;77import java.util.HashMap;78import java.util.List;79import java.util.Map;80import java.util.Optional;81import java.util.Set;82import java.util.UUID;83import java.util.concurrent.ExecutionException;84import java.util.concurrent.atomic.AtomicBoolean;85import java.util.concurrent.atomic.AtomicInteger;86import java.util.logging.Logger;87import java.util.stream.Collectors;88import static com.google.common.collect.ImmutableSet.toImmutableSet;89import static org.openqa.selenium.grid.data.Availability.DRAINING;90import static org.openqa.selenium.grid.data.Availability.UP;91import static org.openqa.selenium.grid.node.CapabilityResponseEncoder.getEncoder;92import static org.openqa.selenium.remote.HttpSessionId.getSessionId;93import static org.openqa.selenium.remote.RemoteTags.CAPABILITIES;94import static org.openqa.selenium.remote.RemoteTags.SESSION_ID;95import static org.openqa.selenium.remote.http.Contents.asJson;96import static org.openqa.selenium.remote.http.Contents.string;97import static org.openqa.selenium.remote.http.HttpMethod.DELETE;98@ManagedService(objectName = "org.seleniumhq.grid:type=Node,name=LocalNode",99  description = "Node running the webdriver sessions.")100public class LocalNode extends Node {101  private static final Json JSON = new Json();102  private static final Logger LOG = Logger.getLogger(LocalNode.class.getName());103  private final EventBus bus;104  private final URI externalUri;105  private final URI gridUri;106  private final Duration heartbeatPeriod;107  private final HealthCheck healthCheck;108  private final int maxSessionCount;109  private final List<SessionSlot> factories;110  private final Cache<SessionId, SessionSlot> currentSessions;111  private final Cache<SessionId, TemporaryFilesystem> tempFileSystems;112  private final Regularly regularly;113  private final AtomicInteger pendingSessions = new AtomicInteger();114  private final AtomicBoolean heartBeatStarted = new AtomicBoolean(false);115  private LocalNode(116    Tracer tracer,117    EventBus bus,118    URI uri,119    URI gridUri,120    HealthCheck healthCheck,121    int maxSessionCount,122    Ticker ticker,123    Duration sessionTimeout,124    Duration heartbeatPeriod,125    List<SessionSlot> factories,126    Secret registrationSecret) {127    super(tracer, new NodeId(UUID.randomUUID()), uri, registrationSecret);128    this.bus = Require.nonNull("Event bus", bus);129    this.externalUri = Require.nonNull("Remote node URI", uri);130    this.gridUri = Require.nonNull("Grid URI", gridUri);131    this.maxSessionCount = Math.min(Require.positive("Max session count", maxSessionCount), factories.size());132    this.heartbeatPeriod = heartbeatPeriod;133    this.factories = ImmutableList.copyOf(factories);134    Require.nonNull("Registration secret", registrationSecret);135    this.healthCheck = healthCheck == null ?136      () -> new HealthCheck.Result(137        isDraining() ? DRAINING : UP,138        String.format("%s is %s", uri, isDraining() ? "draining" : "up")) :139      healthCheck;140    this.currentSessions = CacheBuilder.newBuilder()141      .expireAfterAccess(sessionTimeout)142      .ticker(ticker)143      .removalListener((RemovalListener<SessionId, SessionSlot>) notification -> {144        // If we were invoked explicitly, then return: we know what we're doing.145        if (!notification.wasEvicted()) {146          return;147        }148        killSession(notification.getValue());149      })150      .build();151    this.tempFileSystems = CacheBuilder.newBuilder()152        .expireAfterAccess(sessionTimeout)153        .ticker(ticker)154        .removalListener((RemovalListener<SessionId, TemporaryFilesystem>) notification -> {155          TemporaryFilesystem tempFS = notification.getValue();156          tempFS.deleteTemporaryFiles();157          tempFS.deleteBaseDir();158        })159        .build();160    this.regularly = new Regularly("Local Node: " + externalUri);161    regularly.submit(currentSessions::cleanUp, Duration.ofSeconds(30), Duration.ofSeconds(30));162    regularly.submit(tempFileSystems::cleanUp, Duration.ofSeconds(30), Duration.ofSeconds(30));163    bus.addListener(NodeAddedEvent.listener(nodeId -> {164      if (getId().equals(nodeId)) {165        // Lets avoid to create more than one "Regularly" when the Node registers again.166        if (!heartBeatStarted.getAndSet(true)) {167          regularly.submit(168            () -> bus.fire(new NodeHeartBeatEvent(getStatus())), heartbeatPeriod, heartbeatPeriod);169        }170      }171    }));172    bus.addListener(SessionClosedEvent.listener(id -> {173      try {174        this.stop(id);175      } catch (NoSuchSessionException ignore) {176      }177      if (this.isDraining()) {178        int done = pendingSessions.decrementAndGet();179        if (done <= 0) {180          LOG.info("Firing node drain complete message");181          bus.fire(new NodeDrainComplete(this.getId()));182        }183      }184    }));185    new JMXHelper().register(this);186  }187  public static Builder builder(188    Tracer tracer,189    EventBus bus,190    URI uri,191    URI gridUri,192    Secret registrationSecret) {193    return new Builder(tracer, bus, uri, gridUri, registrationSecret);194  }195  @Override196  public boolean isReady() {197    return bus.isReady();198  }199  @VisibleForTesting200  @ManagedAttribute(name = "CurrentSessions")201  public int getCurrentSessionCount() {202    // It seems wildly unlikely we'll overflow an int203    return Math.toIntExact(currentSessions.size());204  }205  @ManagedAttribute(name = "MaxSessions")206  public int getMaxSessionCount() {207    return maxSessionCount;208  }209  @ManagedAttribute(name = "Status")210  public Availability getAvailability() {211    return isDraining() ? DRAINING : UP;212  }213  @ManagedAttribute(name = "TotalSlots")214  public int getTotalSlots() {215    return factories.size();216  }217  @ManagedAttribute(name = "UsedSlots")218  public long getUsedSlots() {219    return factories.stream().filter(sessionSlot -> !sessionSlot.isAvailable()).count();220  }221  @ManagedAttribute(name = "Load")222  public float getLoad() {223    long inUse = factories.stream().filter(sessionSlot -> !sessionSlot.isAvailable()).count();224    return inUse / (float) maxSessionCount * 100f;225  }226  @ManagedAttribute(name = "RemoteNodeUri")227  public URI getExternalUri() {228    return this.getUri();229  }230  @ManagedAttribute(name = "GridUri")231  public URI getGridUri() {232    return this.gridUri;233  }234  @ManagedAttribute(name = "NodeId")235  public String getNodeId() {236    return getId().toString();237  }238  @Override239  public boolean isSupporting(Capabilities capabilities) {240    return factories.parallelStream().anyMatch(factory -> factory.test(capabilities));241  }242  @Override243  public Either<WebDriverException, CreateSessionResponse> newSession(CreateSessionRequest sessionRequest) {244    Require.nonNull("Session request", sessionRequest);245    try (Span span = tracer.getCurrentContext().createSpan("node.new_session")) {246      Map<String, EventAttributeValue> attributeMap = new HashMap<>();247      attributeMap248        .put(AttributeKey.LOGGER_CLASS.getKey(), EventAttribute.setValue(getClass().getName()));249      attributeMap.put("session.request.capabilities",250        EventAttribute.setValue(sessionRequest.getDesiredCapabilities().toString()));251      attributeMap.put("session.request.downstreamdialect",252        EventAttribute.setValue(sessionRequest.getDownstreamDialects().toString()));253      int currentSessionCount = getCurrentSessionCount();254      span.setAttribute("current.session.count", currentSessionCount);255      attributeMap.put("current.session.count", EventAttribute.setValue(currentSessionCount));256      if (getCurrentSessionCount() >= maxSessionCount) {257        span.setAttribute("error", true);258        span.setStatus(Status.RESOURCE_EXHAUSTED);259        attributeMap.put("max.session.count", EventAttribute.setValue(maxSessionCount));260        span.addEvent("Max session count reached", attributeMap);261        return Either.left(new RetrySessionRequestException("Max session count reached."));262      }263      if (isDraining()) {264        span.setStatus(Status.UNAVAILABLE.withDescription("The node is draining. Cannot accept new sessions."));265        return Either.left(266          new RetrySessionRequestException("The node is draining. Cannot accept new sessions."));267      }268      // Identify possible slots to use as quickly as possible to enable concurrent session starting269      SessionSlot slotToUse = null;270      synchronized (factories) {271        for (SessionSlot factory : factories) {272          if (!factory.isAvailable() || !factory.test(sessionRequest.getDesiredCapabilities())) {273            continue;274          }275          factory.reserve();276          slotToUse = factory;277          break;278        }279      }280      if (slotToUse == null) {281        span.setAttribute("error", true);282        span.setStatus(Status.NOT_FOUND);283        span.addEvent("No slot matched the requested capabilities. ", attributeMap);284        return Either.left(285          new RetrySessionRequestException("No slot matched the requested capabilities."));286      }287      Either<WebDriverException, ActiveSession> possibleSession = slotToUse.apply(sessionRequest);288      if (possibleSession.isRight()) {289        ActiveSession session = possibleSession.right();290        currentSessions.put(session.getId(), slotToUse);291        SessionId sessionId = session.getId();292        Capabilities caps = session.getCapabilities();293        SESSION_ID.accept(span, sessionId);294        CAPABILITIES.accept(span, caps);295        String downstream = session.getDownstreamDialect().toString();296        String upstream = session.getUpstreamDialect().toString();297        String sessionUri = session.getUri().toString();298        span.setAttribute(AttributeKey.DOWNSTREAM_DIALECT.getKey(), downstream);299        span.setAttribute(AttributeKey.UPSTREAM_DIALECT.getKey(), upstream);...

Source:DockerSessionFactory.java

...17package org.openqa.selenium.grid.docker;18import org.openqa.selenium.Capabilities;19import org.openqa.selenium.Dimension;20import org.openqa.selenium.ImmutableCapabilities;21import org.openqa.selenium.RetrySessionRequestException;22import org.openqa.selenium.SessionNotCreatedException;23import org.openqa.selenium.TimeoutException;24import org.openqa.selenium.WebDriverException;25import org.openqa.selenium.docker.Container;26import org.openqa.selenium.docker.ContainerConfig;27import org.openqa.selenium.docker.ContainerInfo;28import org.openqa.selenium.docker.Docker;29import org.openqa.selenium.docker.Image;30import org.openqa.selenium.docker.Port;31import org.openqa.selenium.grid.data.CreateSessionRequest;32import org.openqa.selenium.grid.node.ActiveSession;33import org.openqa.selenium.grid.node.SessionFactory;34import org.openqa.selenium.internal.Either;35import org.openqa.selenium.internal.Require;36import org.openqa.selenium.json.Json;37import org.openqa.selenium.net.PortProber;38import org.openqa.selenium.remote.Command;39import org.openqa.selenium.remote.Dialect;40import org.openqa.selenium.remote.DriverCommand;41import org.openqa.selenium.remote.ProtocolHandshake;42import org.openqa.selenium.remote.Response;43import org.openqa.selenium.remote.SessionId;44import org.openqa.selenium.remote.http.HttpClient;45import org.openqa.selenium.remote.http.HttpRequest;46import org.openqa.selenium.remote.http.HttpResponse;47import org.openqa.selenium.remote.tracing.AttributeKey;48import org.openqa.selenium.remote.tracing.EventAttribute;49import org.openqa.selenium.remote.tracing.EventAttributeValue;50import org.openqa.selenium.remote.tracing.Span;51import org.openqa.selenium.remote.tracing.Status;52import org.openqa.selenium.remote.tracing.Tracer;53import org.openqa.selenium.support.ui.FluentWait;54import org.openqa.selenium.support.ui.Wait;55import java.io.IOException;56import java.io.UncheckedIOException;57import java.net.MalformedURLException;58import java.net.URI;59import java.net.URL;60import java.nio.charset.Charset;61import java.nio.file.Files;62import java.nio.file.Paths;63import java.time.Duration;64import java.time.Instant;65import java.util.Arrays;66import java.util.Collections;67import java.util.HashMap;68import java.util.Map;69import java.util.Objects;70import java.util.Optional;71import java.util.TimeZone;72import java.util.logging.Level;73import java.util.logging.Logger;74import static java.util.Optional.ofNullable;75import static org.openqa.selenium.docker.ContainerConfig.image;76import static org.openqa.selenium.remote.Dialect.W3C;77import static org.openqa.selenium.remote.http.Contents.string;78import static org.openqa.selenium.remote.http.HttpMethod.GET;79import static org.openqa.selenium.remote.tracing.Tags.EXCEPTION;80public class DockerSessionFactory implements SessionFactory {81  private static final Logger LOG = Logger.getLogger(DockerSessionFactory.class.getName());82  private final Tracer tracer;83  private final HttpClient.Factory clientFactory;84  private final Docker docker;85  private final URI dockerUri;86  private final Image browserImage;87  private final Capabilities stereotype;88  private final Image videoImage;89  private final DockerAssetsPath assetsPath;90  private final String networkName;91  private final boolean runningInDocker;92  public DockerSessionFactory(93    Tracer tracer,94    HttpClient.Factory clientFactory,95    Docker docker,96    URI dockerUri,97    Image browserImage,98    Capabilities stereotype,99    Image videoImage,100    DockerAssetsPath assetsPath,101    String networkName,102    boolean runningInDocker) {103    this.tracer = Require.nonNull("Tracer", tracer);104    this.clientFactory = Require.nonNull("HTTP client", clientFactory);105    this.docker = Require.nonNull("Docker command", docker);106    this.dockerUri = Require.nonNull("Docker URI", dockerUri);107    this.browserImage = Require.nonNull("Docker browser image", browserImage);108    this.networkName = Require.nonNull("Docker network name", networkName);109    this.stereotype = ImmutableCapabilities.copyOf(110      Require.nonNull("Stereotype", stereotype));111    this.videoImage = videoImage;112    this.assetsPath = assetsPath;113    this.runningInDocker = runningInDocker;114  }115  @Override116  public boolean test(Capabilities capabilities) {117    return stereotype.getCapabilityNames().stream()118        .map(119          name ->120            Objects.equals(stereotype.getCapability(name), capabilities.getCapability(name)))121        .reduce(Boolean::logicalAnd)122        .orElse(false);123  }124  @Override125  public Either<WebDriverException, ActiveSession> apply(CreateSessionRequest sessionRequest) {126    LOG.info("Starting session for " + sessionRequest.getDesiredCapabilities());127    int port = runningInDocker ? 4444 : PortProber.findFreePort();128    try (Span span = tracer.getCurrentContext().createSpan("docker_session_factory.apply")) {129      Map<String, EventAttributeValue> attributeMap = new HashMap<>();130      attributeMap.put(AttributeKey.LOGGER_CLASS.getKey(),131                       EventAttribute.setValue(this.getClass().getName()));132      String logMessage = runningInDocker ? "Creating container..." :133                          "Creating container, mapping container port 4444 to " + port;134      LOG.info(logMessage);135      Container container = createBrowserContainer(port, sessionRequest.getDesiredCapabilities());136      container.start();137      ContainerInfo containerInfo = container.inspect();138      String containerIp = containerInfo.getIp();139      URL remoteAddress = getUrl(port, containerIp);140      HttpClient client = clientFactory.createClient(remoteAddress);141      attributeMap.put("docker.browser.image", EventAttribute.setValue(browserImage.toString()));142      attributeMap.put("container.port", EventAttribute.setValue(port));143      attributeMap.put("container.id", EventAttribute.setValue(container.getId().toString()));144      attributeMap.put("container.ip", EventAttribute.setValue(containerIp));145      attributeMap.put("docker.server.url", EventAttribute.setValue(remoteAddress.toString()));146      LOG.info(147        String.format("Waiting for server to start (container id: %s, url %s)",148                      container.getId(),149                      remoteAddress));150      try {151        waitForServerToStart(client, Duration.ofMinutes(1));152      } catch (TimeoutException e) {153        span.setAttribute("error", true);154        span.setStatus(Status.CANCELLED);155        EXCEPTION.accept(attributeMap, e);156        attributeMap.put(AttributeKey.EXCEPTION_MESSAGE.getKey(),157                         EventAttribute.setValue(158                           "Unable to connect to docker server. Stopping container: " +159                           e.getMessage()));160        span.addEvent(AttributeKey.EXCEPTION_EVENT.getKey(), attributeMap);161        container.stop(Duration.ofMinutes(1));162        String message = String.format(163          "Unable to connect to docker server (container id: %s)", container.getId());164        LOG.warning(message);165        return Either.left(new RetrySessionRequestException(message));166      }167      LOG.info(String.format("Server is ready (container id: %s)", container.getId()));168      Command command = new Command(169          null,170          DriverCommand.NEW_SESSION(sessionRequest.getDesiredCapabilities()));171      ProtocolHandshake.Result result;172      Response response;173      try {174        result = new ProtocolHandshake().createSession(client, command);175        response = result.createResponse();176        attributeMap.put(AttributeKey.DRIVER_RESPONSE.getKey(),177                         EventAttribute.setValue(response.toString()));178      } catch (IOException | RuntimeException e) {179        span.setAttribute("error", true);...

Source:LocalDistributor.java

...18import com.google.common.collect.ImmutableSet;19import org.openqa.selenium.Beta;20import org.openqa.selenium.Capabilities;21import org.openqa.selenium.ImmutableCapabilities;22import org.openqa.selenium.RetrySessionRequestException;23import org.openqa.selenium.SessionNotCreatedException;24import org.openqa.selenium.WebDriverException;25import org.openqa.selenium.concurrent.Regularly;26import org.openqa.selenium.events.EventBus;27import org.openqa.selenium.grid.config.Config;28import org.openqa.selenium.grid.data.CreateSessionRequest;29import org.openqa.selenium.grid.data.CreateSessionResponse;30import org.openqa.selenium.grid.data.DistributorStatus;31import org.openqa.selenium.grid.data.NewSessionErrorResponse;32import org.openqa.selenium.grid.data.NewSessionRejectedEvent;33import org.openqa.selenium.grid.data.NewSessionRequestEvent;34import org.openqa.selenium.grid.data.NewSessionResponse;35import org.openqa.selenium.grid.data.NewSessionResponseEvent;36import org.openqa.selenium.grid.data.NodeAddedEvent;37import org.openqa.selenium.grid.data.NodeDrainComplete;38import org.openqa.selenium.grid.data.NodeHeartBeatEvent;39import org.openqa.selenium.grid.data.NodeId;40import org.openqa.selenium.grid.data.NodeStatus;41import org.openqa.selenium.grid.data.NodeStatusEvent;42import org.openqa.selenium.grid.data.RequestId;43import org.openqa.selenium.grid.data.Slot;44import org.openqa.selenium.grid.data.SlotId;45import org.openqa.selenium.grid.distributor.Distributor;46import org.openqa.selenium.grid.distributor.config.DistributorOptions;47import org.openqa.selenium.grid.distributor.selector.DefaultSlotSelector;48import org.openqa.selenium.grid.log.LoggingOptions;49import org.openqa.selenium.grid.node.HealthCheck;50import org.openqa.selenium.grid.node.Node;51import org.openqa.selenium.grid.node.remote.RemoteNode;52import org.openqa.selenium.grid.security.Secret;53import org.openqa.selenium.grid.security.SecretOptions;54import org.openqa.selenium.grid.server.EventBusOptions;55import org.openqa.selenium.grid.server.NetworkOptions;56import org.openqa.selenium.grid.sessionmap.SessionMap;57import org.openqa.selenium.grid.sessionmap.config.SessionMapOptions;58import org.openqa.selenium.grid.sessionqueue.NewSessionQueuer;59import org.openqa.selenium.grid.sessionqueue.config.NewSessionQueuerOptions;60import org.openqa.selenium.internal.Either;61import org.openqa.selenium.internal.Require;62import org.openqa.selenium.remote.http.HttpClient;63import org.openqa.selenium.remote.http.HttpRequest;64import org.openqa.selenium.remote.tracing.AttributeKey;65import org.openqa.selenium.remote.tracing.EventAttribute;66import org.openqa.selenium.remote.tracing.EventAttributeValue;67import org.openqa.selenium.remote.tracing.Span;68import org.openqa.selenium.remote.tracing.Tracer;69import org.openqa.selenium.status.HasReadyState;70import java.time.Duration;71import java.util.ArrayList;72import java.util.HashMap;73import java.util.List;74import java.util.Map;75import java.util.Optional;76import java.util.Queue;77import java.util.Set;78import java.util.concurrent.ConcurrentHashMap;79import java.util.concurrent.ConcurrentLinkedQueue;80import java.util.concurrent.Executors;81import java.util.concurrent.ScheduledExecutorService;82import java.util.concurrent.ThreadFactory;83import java.util.concurrent.TimeUnit;84import java.util.concurrent.locks.Lock;85import java.util.concurrent.locks.ReadWriteLock;86import java.util.concurrent.locks.ReentrantReadWriteLock;87import java.util.logging.Level;88import java.util.logging.Logger;89import static com.google.common.collect.ImmutableSet.toImmutableSet;90import static org.openqa.selenium.grid.data.Availability.DOWN;91import static org.openqa.selenium.grid.data.Availability.DRAINING;92import static org.openqa.selenium.remote.tracing.HttpTracing.newSpanAsChildOf;93public class LocalDistributor extends Distributor {94  private static final Logger LOG = Logger.getLogger(LocalDistributor.class.getName());95  private final Tracer tracer;96  private final EventBus bus;97  private final HttpClient.Factory clientFactory;98  private final SessionMap sessions;99  private final Secret registrationSecret;100  private final Regularly hostChecker = new Regularly("distributor host checker");101  private final Map<NodeId, Runnable> allChecks = new HashMap<>();102  private final Queue<RequestId> requestIds = new ConcurrentLinkedQueue<>();103  private final ScheduledExecutorService executorService;104  private final Duration healthcheckInterval;105  private final ReadWriteLock lock = new ReentrantReadWriteLock(/* fair */ true);106  private final GridModel model;107  private final Map<NodeId, Node> nodes;108  private final NewSessionQueuer sessionRequests;109  public LocalDistributor(110    Tracer tracer,111    EventBus bus,112    HttpClient.Factory clientFactory,113    SessionMap sessions,114    NewSessionQueuer sessionRequests,115    Secret registrationSecret,116    Duration healthcheckInterval) {117    super(tracer, clientFactory, new DefaultSlotSelector(), sessions, registrationSecret);118    this.tracer = Require.nonNull("Tracer", tracer);119    this.bus = Require.nonNull("Event bus", bus);120    this.clientFactory = Require.nonNull("HTTP client factory", clientFactory);121    this.sessions = Require.nonNull("Session map", sessions);122    this.model = new GridModel(bus);123    this.nodes = new ConcurrentHashMap<>();124    this.sessionRequests = Require.nonNull("New Session Request Queue", sessionRequests);125    this.registrationSecret = Require.nonNull("Registration secret", registrationSecret);126    this.healthcheckInterval = Require.nonNull("Health check interval", healthcheckInterval);127    bus.addListener(NodeStatusEvent.listener(this::register));128    bus.addListener(NodeStatusEvent.listener(model::refresh));129    bus.addListener(NodeHeartBeatEvent.listener(nodeStatus -> {130      if (nodes.containsKey(nodeStatus.getId())) {131        model.touch(nodeStatus.getId());132      } else {133        register(nodeStatus);134      }135    }));136    bus.addListener(NodeDrainComplete.listener(this::remove));137    bus.addListener(NewSessionRequestEvent.listener(requestIds::offer));138    Regularly regularly = new Regularly("Local Distributor");139    regularly.submit(model::purgeDeadNodes, Duration.ofSeconds(30), Duration.ofSeconds(30));140    Thread shutdownHook = new Thread(this::callExecutorShutdown);141    Runtime.getRuntime().addShutdownHook(shutdownHook);142    NewSessionRunnable runnable = new NewSessionRunnable();143    ThreadFactory threadFactory = r -> {144      Thread thread = new Thread(r);145      thread.setName("New Session Creation");146      thread.setDaemon(true);147      return thread;148    };149    executorService = Executors.newSingleThreadScheduledExecutor(threadFactory);150    executorService.scheduleAtFixedRate(runnable, 0, 1000, TimeUnit.MILLISECONDS);151  }152  public static Distributor create(Config config) {153    Tracer tracer = new LoggingOptions(config).getTracer();154    EventBus bus = new EventBusOptions(config).getEventBus();155    DistributorOptions distributorOptions = new DistributorOptions(config);156    HttpClient.Factory clientFactory = new NetworkOptions(config).getHttpClientFactory(tracer);157    SessionMap sessions = new SessionMapOptions(config).getSessionMap();158    SecretOptions secretOptions = new SecretOptions(config);159    NewSessionQueuer sessionRequests =160      new NewSessionQueuerOptions(config).getSessionQueuer(161        "org.openqa.selenium.grid.sessionqueue.remote.RemoteNewSessionQueuer");162    return new LocalDistributor(163      tracer,164      bus,165      clientFactory,166      sessions,167      sessionRequests,168      secretOptions.getRegistrationSecret(),169      distributorOptions.getHealthCheckInterval());170  }171  @Override172  public boolean isReady() {173    try {174      return ImmutableSet.of(bus, sessions).parallelStream()175        .map(HasReadyState::isReady)176        .reduce(true, Boolean::logicalAnd);177    } catch (RuntimeException e) {178      return false;179    }180  }181  private void register(NodeStatus status) {182    Require.nonNull("Node", status);183    Lock writeLock = lock.writeLock();184    writeLock.lock();185    try {186      if (nodes.containsKey(status.getId())) {187        return;188      }189      Set<Capabilities> capabilities = status.getSlots().stream()190        .map(Slot::getStereotype)191        .map(ImmutableCapabilities::copyOf)192        .collect(toImmutableSet());193      // A new node! Add this as a remote node, since we've not called add194      RemoteNode remoteNode = new RemoteNode(195        tracer,196        clientFactory,197        status.getId(),198        status.getUri(),199        registrationSecret,200        capabilities);201      add(remoteNode);202    } finally {203      writeLock.unlock();204    }205  }206  @Override207  public LocalDistributor add(Node node) {208    Require.nonNull("Node", node);209    LOG.info(String.format("Added node %s at %s.", node.getId(), node.getUri()));210    nodes.put(node.getId(), node);211    model.add(node.getStatus());212    // Extract the health check213    Runnable runnableHealthCheck = asRunnableHealthCheck(node);214    allChecks.put(node.getId(), runnableHealthCheck);215    hostChecker.submit(runnableHealthCheck, healthcheckInterval, Duration.ofSeconds(30));216    bus.fire(new NodeAddedEvent(node.getId()));217    return this;218  }219  private Runnable asRunnableHealthCheck(Node node) {220    HealthCheck healthCheck = node.getHealthCheck();221    NodeId id = node.getId();222    return () -> {223      HealthCheck.Result result;224      try {225        result = healthCheck.check();226      } catch (Exception e) {227        LOG.log(Level.WARNING, "Unable to process node " + id, e);228        result = new HealthCheck.Result(DOWN, "Unable to run healthcheck. Assuming down");229      }230      Lock writeLock = lock.writeLock();231      writeLock.lock();232      try {233        model.setAvailability(id, result.getAvailability());234      } finally {235        writeLock.unlock();236      }237    };238  }239  @Override240  public boolean drain(NodeId nodeId) {241    Node node = nodes.get(nodeId);242    if (node == null) {243      LOG.info("Asked to drain unregistered node " + nodeId);244      return false;245    }246    Lock writeLock = lock.writeLock();247    writeLock.lock();248    try {249      node.drain();250      model.setAvailability(nodeId, DRAINING);251    } finally {252      writeLock.unlock();253    }254    return node.isDraining();255  }256  public void remove(NodeId nodeId) {257    Lock writeLock = lock.writeLock();258    writeLock.lock();259    try {260      model.remove(nodeId);261      Runnable runnable = allChecks.remove(nodeId);262      if (runnable != null) {263        hostChecker.remove(runnable);264      }265    } finally {266      writeLock.unlock();267    }268  }269  @Override270  public DistributorStatus getStatus() {271    Lock readLock = this.lock.readLock();272    readLock.lock();273    try {274      return new DistributorStatus(model.getSnapshot());275    } finally {276      readLock.unlock();277    }278  }279  @Beta280  public void refresh() {281    List<Runnable> allHealthChecks = new ArrayList<>();282    Lock readLock = this.lock.readLock();283    readLock.lock();284    try {285      allHealthChecks.addAll(allChecks.values());286    } finally {287      readLock.unlock();288    }289    allHealthChecks.parallelStream().forEach(Runnable::run);290  }291  @Override292  protected Set<NodeStatus> getAvailableNodes() {293    Lock readLock = this.lock.readLock();294    readLock.lock();295    try {296      return model.getSnapshot().stream()297        .filter(node -> !DOWN.equals(node.getAvailability()))298        .collect(toImmutableSet());299    } finally {300      readLock.unlock();301    }302  }303  @Override304  protected Either<SessionNotCreatedException, CreateSessionResponse> reserve(SlotId slotId, CreateSessionRequest request) {305    Require.nonNull("Slot ID", slotId);306    Require.nonNull("New Session request", request);307    Lock writeLock = this.lock.writeLock();308    writeLock.lock();309    try {310      Node node = nodes.get(slotId.getOwningNodeId());311      if (node == null) {312        return Either.left(new RetrySessionRequestException(313          "Unable to find node. Try a different node"));314      }315      model.reserve(slotId);316      Either<WebDriverException, CreateSessionResponse> response = node.newSession(request);317      if (response.isRight()) {318        model.setSession(slotId, response.right().getSession());319        return Either.right(response.right());320      } else {321        model.setSession(slotId, null);322        WebDriverException exception = response.left();323        if (exception instanceof RetrySessionRequestException) {324          return Either.left(new RetrySessionRequestException(exception.getMessage()));325        } else {326          return Either.left(new SessionNotCreatedException(exception.getMessage()));327        }328      }329    } finally {330      writeLock.unlock();331    }332  }333  public void callExecutorShutdown() {334    LOG.info("Shutting down Distributor executor service");335    executorService.shutdownNow();336  }337  public class NewSessionRunnable implements Runnable {338    @Override339    public void run() {340      Lock writeLock = lock.writeLock();341      writeLock.lock();342      try {343        if (!requestIds.isEmpty()) {344          Set<NodeStatus> availableNodes = ImmutableSet.copyOf(getAvailableNodes());345          boolean hasCapacity = availableNodes.stream()346            .anyMatch(NodeStatus::hasCapacity);347          if (hasCapacity) {348            RequestId reqId = requestIds.poll();349            if (reqId != null) {350              Optional<HttpRequest> optionalHttpRequest = sessionRequests.remove(reqId);351              // Check if polling the queue did not return null352              if (optionalHttpRequest.isPresent()) {353                handleNewSessionRequest(optionalHttpRequest.get(), reqId);354              } else {355                fireSessionRejectedEvent(356                  "Unable to poll request from the new session request queue.",357                  reqId);358              }359            }360          }361        }362      } finally {363        writeLock.unlock();364      }365    }366    private void handleNewSessionRequest(HttpRequest sessionRequest, RequestId reqId) {367      try (Span span = newSpanAsChildOf(tracer, sessionRequest, "distributor.poll_queue")) {368        Map<String, EventAttributeValue> attributeMap = new HashMap<>();369        attributeMap.put(370          AttributeKey.LOGGER_CLASS.getKey(),371          EventAttribute.setValue(getClass().getName()));372        span.setAttribute(AttributeKey.REQUEST_ID.getKey(), reqId.toString());373        attributeMap.put(374          AttributeKey.REQUEST_ID.getKey(),375          EventAttribute.setValue(reqId.toString()));376        attributeMap.put("request", EventAttribute.setValue(sessionRequest.toString()));377        Either<SessionNotCreatedException, CreateSessionResponse> response =378          newSession(sessionRequest);379        if (response.isRight()) {380          CreateSessionResponse sessionResponse = response.right();381          NewSessionResponse newSessionResponse =382            new NewSessionResponse(383              reqId,384              sessionResponse.getSession(),385              sessionResponse.getDownstreamEncodedResponse());386          bus.fire(new NewSessionResponseEvent(newSessionResponse));387        } else {388          SessionNotCreatedException exception = response.left();389          if (exception instanceof RetrySessionRequestException) {390            boolean retried = sessionRequests.retryAddToQueue(sessionRequest, reqId);391            attributeMap.put("request.retry_add", EventAttribute.setValue(retried));392            span.addEvent("Retry adding to front of queue. No slot available.", attributeMap);393            if (!retried) {394              span.addEvent("Retry adding to front of queue failed.", attributeMap);395              fireSessionRejectedEvent(exception.getMessage(), reqId);396            }397          } else {398            fireSessionRejectedEvent(exception.getMessage(), reqId);399          }400        }401      }402    }403    private void fireSessionRejectedEvent(String message, RequestId reqId) {...

Source:RemoteNode.java

...28import com.google.common.collect.ImmutableMap;29import com.google.common.collect.ImmutableSet;30import org.openqa.selenium.Capabilities;31import org.openqa.selenium.NoSuchSessionException;32import org.openqa.selenium.RetrySessionRequestException;33import org.openqa.selenium.SessionNotCreatedException;34import org.openqa.selenium.WebDriverException;35import org.openqa.selenium.grid.data.CreateSessionRequest;36import org.openqa.selenium.grid.data.CreateSessionResponse;37import org.openqa.selenium.grid.data.NodeId;38import org.openqa.selenium.grid.data.NodeStatus;39import org.openqa.selenium.grid.data.Session;40import org.openqa.selenium.grid.node.HealthCheck;41import org.openqa.selenium.grid.node.Node;42import org.openqa.selenium.grid.security.AddSecretFilter;43import org.openqa.selenium.grid.security.Secret;44import org.openqa.selenium.grid.web.Values;45import org.openqa.selenium.internal.Either;46import org.openqa.selenium.internal.Require;47import org.openqa.selenium.json.Json;48import org.openqa.selenium.json.JsonInput;49import org.openqa.selenium.remote.SessionId;50import org.openqa.selenium.remote.http.Filter;51import org.openqa.selenium.remote.http.HttpClient;52import org.openqa.selenium.remote.http.HttpHandler;53import org.openqa.selenium.remote.http.HttpRequest;54import org.openqa.selenium.remote.http.HttpResponse;55import org.openqa.selenium.remote.tracing.HttpTracing;56import org.openqa.selenium.remote.tracing.Tracer;57import java.io.IOException;58import java.io.Reader;59import java.io.UncheckedIOException;60import java.net.URI;61import java.util.Collection;62import java.util.Map;63import java.util.Objects;64import java.util.Optional;65import java.util.Set;66public class RemoteNode extends Node {67  public static final Json JSON = new Json();68  private final HttpHandler client;69  private final URI externalUri;70  private final Set<Capabilities> capabilities;71  private final HealthCheck healthCheck;72  private final Filter addSecret;73  public RemoteNode(74      Tracer tracer,75      HttpClient.Factory clientFactory,76      NodeId id,77      URI externalUri,78      Secret registrationSecret,79      Collection<Capabilities> capabilities) {80    super(tracer, id, externalUri, registrationSecret);81    this.externalUri = Require.nonNull("External URI", externalUri);82    this.capabilities = ImmutableSet.copyOf(capabilities);83    this.client = Require.nonNull("HTTP client factory", clientFactory).createClient(fromUri(externalUri));84    this.healthCheck = new RemoteCheck();85    Require.nonNull("Registration secret", registrationSecret);86    this.addSecret = new AddSecretFilter(registrationSecret);87  }88  @Override89  public boolean isReady() {90    try {91      return client.execute(new HttpRequest(GET, "/readyz")).isSuccessful();92    } catch (Exception e) {93      return false;94    }95  }96  @Override97  public boolean isSupporting(Capabilities capabilities) {98    return this.capabilities.stream()99        .anyMatch(caps -> caps.getCapabilityNames().stream()100            .allMatch(name -> Objects.equals(101                caps.getCapability(name),102                capabilities.getCapability(name))));103  }104  @Override105  public Either<WebDriverException, CreateSessionResponse> newSession(106    CreateSessionRequest sessionRequest) {107    Require.nonNull("Capabilities for session", sessionRequest);108    HttpRequest req = new HttpRequest(POST, "/se/grid/node/session");109    HttpTracing.inject(tracer, tracer.getCurrentContext(), req);110    req.setContent(asJson(sessionRequest));111    HttpResponse httpResponse = client.with(addSecret).execute(req);112    Optional<Map<String, Object>> maybeResponse =113      Optional.ofNullable(Values.get(httpResponse, Map.class));114    if (maybeResponse.isPresent()) {115      Map<String, Object> response = maybeResponse.get();116      if (response.containsKey("sessionResponse")) {117        String rawResponse = JSON.toJson(response.get("sessionResponse"));118        CreateSessionResponse sessionResponse = JSON.toType(rawResponse, CreateSessionResponse.class);119        return Either.right(sessionResponse);120      } else {121        String rawException = JSON.toJson(response.get("exception"));122        Map<String, Object> exception = JSON.toType(rawException, Map.class);123        String errorType = (String) exception.get("error");124        String errorMessage = (String) exception.get("message");125        if (RetrySessionRequestException.class.getName().contentEquals(errorType)) {126          return Either.left(new RetrySessionRequestException(errorMessage));127        } else {128          return Either.left(new SessionNotCreatedException(errorMessage));129        }130      }131    }132    return Either.left(new SessionNotCreatedException("Error while mapping response from Node"));133  }134  @Override135  public boolean isSessionOwner(SessionId id) {136    Require.nonNull("Session ID", id);137    HttpRequest req = new HttpRequest(GET, "/se/grid/node/owner/" + id);138    HttpTracing.inject(tracer, tracer.getCurrentContext(), req);139    HttpResponse res = client.with(addSecret).execute(req);140    return Boolean.TRUE.equals(Values.get(res, Boolean.class));...

Source:LocalNodeTest.java

...21import org.junit.Test;22import org.openqa.selenium.Capabilities;23import org.openqa.selenium.ImmutableCapabilities;24import org.openqa.selenium.NoSuchSessionException;25import org.openqa.selenium.RetrySessionRequestException;26import org.openqa.selenium.WebDriverException;27import org.openqa.selenium.events.EventBus;28import org.openqa.selenium.events.local.GuavaEventBus;29import org.openqa.selenium.grid.data.CreateSessionRequest;30import org.openqa.selenium.grid.data.CreateSessionResponse;31import org.openqa.selenium.grid.data.NodeStatus;32import org.openqa.selenium.grid.data.Session;33import org.openqa.selenium.grid.node.Node;34import org.openqa.selenium.grid.security.Secret;35import org.openqa.selenium.grid.testing.EitherAssert;36import org.openqa.selenium.grid.testing.TestSessionFactory;37import org.openqa.selenium.internal.Either;38import org.openqa.selenium.remote.HttpSessionId;39import org.openqa.selenium.remote.SessionId;40import org.openqa.selenium.remote.http.HttpHandler;41import org.openqa.selenium.remote.http.HttpRequest;42import org.openqa.selenium.remote.http.HttpResponse;43import org.openqa.selenium.remote.tracing.DefaultTestTracer;44import org.openqa.selenium.remote.tracing.Tracer;45import java.net.URI;46import java.net.URISyntaxException;47import java.time.Instant;48import java.util.ArrayList;49import java.util.List;50import java.util.Optional;51import java.util.concurrent.Callable;52import java.util.concurrent.Executors;53import java.util.concurrent.Future;54import static java.util.concurrent.TimeUnit.SECONDS;55import static org.assertj.core.api.Assertions.assertThat;56import static org.assertj.core.api.Assertions.assertThatExceptionOfType;57import static org.openqa.selenium.remote.Dialect.W3C;58import static org.openqa.selenium.remote.http.HttpMethod.GET;59public class LocalNodeTest {60  private LocalNode node;61  private Session session;62  private Secret registrationSecret;63  private static <A, B> EitherAssert<A, B> assertThatEither(Either<A, B> either) {64    return new EitherAssert<>(either);65  }66  @Before67  public void setUp() throws URISyntaxException {68    Tracer tracer = DefaultTestTracer.createTracer();69    EventBus bus = new GuavaEventBus();70    URI uri = new URI("http://localhost:1234");71    Capabilities stereotype = new ImmutableCapabilities("cheese", "brie");72    registrationSecret = new Secret("red leicester");73    node = LocalNode.builder(tracer, bus, uri, uri, registrationSecret)74        .add(stereotype, new TestSessionFactory((id, caps) -> new Session(id, uri, stereotype, caps, Instant.now())))75        .build();76    Either<WebDriverException, CreateSessionResponse> response = node.newSession(77      new CreateSessionRequest(78        ImmutableSet.of(W3C),79        stereotype,80        ImmutableMap.of()));81    if (response.isRight()) {82      CreateSessionResponse sessionResponse = response.right();83      session = sessionResponse.getSession();84    } else {85      throw new AssertionError("Unable to create session" + response.left().getMessage());86    }87  }88  @Test89  public void shouldThrowIfSessionIsNotPresent() {90    assertThatExceptionOfType(NoSuchSessionException.class)91        .isThrownBy(() -> node.getSession(new SessionId("12345")));92  }93  @Test94  public void canRetrieveActiveSessionById() {95    assertThat(node.getSession(session.getId())).isEqualTo(session);96  }97  @Test98  public void isOwnerOfAnActiveSession() {99    assertThat(node.isSessionOwner(session.getId())).isTrue();100  }101  @Test102  public void canStopASession() {103    node.stop(session.getId());104    assertThatExceptionOfType(NoSuchSessionException.class)105        .isThrownBy(() -> node.getSession(session.getId()));106  }107  @Test108  public void isNotOwnerOfAStoppedSession() {109    node.stop(session.getId());110    assertThat(node.isSessionOwner(session.getId())).isFalse();111  }112  @Test113  public void cannotAcceptNewSessionsWhileDraining() {114    node.drain();115    assertThat(node.isDraining()).isTrue();116    node.stop(session.getId()); //stop the default session117    Capabilities stereotype = new ImmutableCapabilities("cheese", "brie");118    Either<WebDriverException, CreateSessionResponse> sessionResponse = node.newSession(119      new CreateSessionRequest(120        ImmutableSet.of(W3C),121        stereotype,122        ImmutableMap.of()));123    assertThatEither(sessionResponse).isLeft();124    assertThat(sessionResponse.left()).isInstanceOf(RetrySessionRequestException.class);125  }126  @Test127  public void cannotCreateNewSessionsOnMaxSessionCount() {128    Capabilities stereotype = new ImmutableCapabilities("cheese", "brie");129    Either<WebDriverException, CreateSessionResponse> sessionResponse = node.newSession(130      new CreateSessionRequest(131        ImmutableSet.of(W3C),132        stereotype,133        ImmutableMap.of()));134    assertThatEither(sessionResponse).isLeft();135    assertThat(sessionResponse.left()).isInstanceOf(RetrySessionRequestException.class);136  }137  @Test138  public void canReturnStatusInfo() {139    NodeStatus status = node.getStatus();140    assertThat(status.getSlots().stream()141      .filter(slot -> slot.getSession().isPresent())142      .map(slot -> slot.getSession().get())143      .filter(s -> s.getId().equals(session.getId()))).isNotEmpty();144    node.stop(session.getId());145    status = node.getStatus();146    assertThat(status.getSlots().stream()147      .filter(slot -> slot.getSession().isPresent())148      .map(slot -> slot.getSession().get())149      .filter(s -> s.getId().equals(session.getId()))).isEmpty();...

Source:SessionSlot.java

...17package org.openqa.selenium.grid.node.local;18import org.openqa.selenium.Capabilities;19import org.openqa.selenium.ImmutableCapabilities;20import org.openqa.selenium.NoSuchSessionException;21import org.openqa.selenium.RetrySessionRequestException;22import org.openqa.selenium.SessionNotCreatedException;23import org.openqa.selenium.WebDriverException;24import org.openqa.selenium.WebDriverInfo;25import org.openqa.selenium.events.EventBus;26import org.openqa.selenium.grid.data.CreateSessionRequest;27import org.openqa.selenium.grid.data.SessionClosedEvent;28import org.openqa.selenium.grid.node.ActiveSession;29import org.openqa.selenium.grid.node.SessionFactory;30import org.openqa.selenium.internal.Either;31import org.openqa.selenium.internal.Require;32import org.openqa.selenium.remote.SessionId;33import org.openqa.selenium.remote.http.HttpHandler;34import org.openqa.selenium.remote.http.HttpRequest;35import org.openqa.selenium.remote.http.HttpResponse;36import java.io.UncheckedIOException;37import java.util.ServiceLoader;38import java.util.UUID;39import java.util.concurrent.atomic.AtomicBoolean;40import java.util.function.Function;41import java.util.function.Predicate;42import java.util.logging.Level;43import java.util.logging.Logger;44import java.util.stream.StreamSupport;45public class SessionSlot implements46  HttpHandler,47  Function<CreateSessionRequest, Either<WebDriverException, ActiveSession>>,48  Predicate<Capabilities> {49  private static final Logger LOG = Logger.getLogger(SessionSlot.class.getName());50  private final EventBus bus;51  private final UUID id;52  private final Capabilities stereotype;53  private final SessionFactory factory;54  private final AtomicBoolean reserved = new AtomicBoolean(false);55  private final boolean supportingCdp;56  private ActiveSession currentSession;57  public SessionSlot(EventBus bus, Capabilities stereotype, SessionFactory factory) {58    this.bus = Require.nonNull("Event bus", bus);59    this.id = UUID.randomUUID();60    this.stereotype = ImmutableCapabilities.copyOf(Require.nonNull("Stereotype", stereotype));61    this.factory = Require.nonNull("Session factory", factory);62    this.supportingCdp = isSlotSupportingCdp(this.stereotype);63  }64  public UUID getId() {65    return id;66  }67  public Capabilities getStereotype() {68    return stereotype;69  }70  public void reserve() {71    if (reserved.getAndSet(true)) {72      throw new IllegalStateException("Attempt to reserve a slot that is already reserved");73    }74  }75  public void release() {76    reserved.set(false);77  }78  public boolean isAvailable() {79    return !reserved.get();80  }81  public ActiveSession getSession() {82    if (isAvailable()) {83      throw new NoSuchSessionException("Session is not running");84    }85    return currentSession;86  }87  public void stop() {88    if (isAvailable()) {89      return;90    }91    SessionId id = currentSession.getId();92    try {93      currentSession.stop();94    } catch (Exception e) {95      LOG.log(Level.WARNING, "Unable to cleanly close session", e);96    }97    currentSession = null;98    release();99    bus.fire(new SessionClosedEvent(id));100  }101  @Override102  public HttpResponse execute(HttpRequest req) throws UncheckedIOException {103    if (currentSession == null) {104      throw new NoSuchSessionException("No session currently running: " + req.getUri());105    }106    return currentSession.execute(req);107  }108  @Override109  public boolean test(Capabilities capabilities) {110    return factory.test(capabilities);111  }112  @Override113  public Either<WebDriverException, ActiveSession> apply(CreateSessionRequest sessionRequest) {114    if (currentSession != null) {115      return Either.left(new RetrySessionRequestException("Slot is busy. Try another slot."));116    }117    if (!test(sessionRequest.getDesiredCapabilities())) {118      return Either.left(new SessionNotCreatedException("New session request capabilities do not "119                                                        + "match the stereotype."));120    }121    try {122      Either<WebDriverException, ActiveSession> possibleSession = factory.apply(sessionRequest);123      if (possibleSession.isRight()) {124        ActiveSession session = possibleSession.right();125        currentSession = session;126        return Either.right(session);127      } else {128        return Either.left(possibleSession.left());129      }...

Source:RetrySessionRequestException.java

...14// KIND, either express or implied.  See the License for the15// specific language governing permissions and limitations16// under the License.17package org.openqa.selenium;18public class RetrySessionRequestException extends SessionNotCreatedException {19  public RetrySessionRequestException(String msg) {20    super(msg);21  }22  public RetrySessionRequestException(String msg, Throwable cause) {23    super(msg, cause);24  }25}...

RetrySessionRequestException

Using AI Code Generation

1import org.openqa.selenium.RetrySessionRequestException;2import org.openqa.selenium.WebDriver;3import org.openqa.selenium.chrome.ChromeDriver;4import org.openqa.selenium.chrome.ChromeOptions;5import org.openqa.selenium.remote.CapabilityType;6import org.openqa.selenium.remote.DesiredCapabilities;7import org.openqa.selenium.remote.RemoteWebDriver;8import org.openqa.selenium.remote.UnreachableBrowserException;9import org.openqa.selenium.remote.service.DriverService;10public class BaseClass {11    public static WebDriver driver;12    public static String driverPath = "D:\\chromedriver_win32\\chromedriver.exe";13    public static void main(String[] args) {14        System.setProperty("webdriver.chrome.driver", driverPath);15        ChromeOptions options = new ChromeOptions();16        options.addArguments("start-maximized");17        options.addArguments("disable-infobars");18        options.addArguments("--disable-extensions");19        options.addArguments("--disable-notifications");20        options.addArguments("--disable-gpu");21        options.addArguments("--disable-dev-shm-usage");22        options.addArguments("--no-sandbox");23        options.addArguments("--ignore-certificate-errors");24        options.addArguments("--allow-running-insecure-content");25        options.addArguments("--headless");26        options.addArguments("--disable-browser-side-navigation");27        options.addArguments("--disable-features=VizDisplayCompositor");28        options.addArguments("--disable-features=NetworkService");29        options.addArguments("--disable-features=VizDisplayCompositor");30        options.addArguments("--disable-features=NetworkService");31        options.addArguments("--disable-features=IsolateOrigins,site-per-process");32        options.addArguments("--disable-features=VizDisplayCompositor");33        options.addArguments("--disable-features=NetworkService");34        options.addArguments("--disable-features=IsolateOrigins,site-per-process");35        options.addArguments("--disable-features=VizDisplayCompositor");36        options.addArguments("--disable-features=NetworkService");37        options.addArguments("--disable-features=IsolateOrigins,site-per-process");38        options.addArguments("--disable-features=VizDisplayCompositor");39        options.addArguments("--disable-features=NetworkService");40        options.addArguments("--disable-features=IsolateOrigins,site-per-process");41        options.addArguments("--disable-features=VizDisplayCompositor");42        options.addArguments("--disable-features=NetworkService");43        options.addArguments("--disable-features

RetrySessionRequestException

Using AI Code Generation

1package com.selenium4beginners.java.webdriver;2import org.openqa.selenium.By;3import org.openqa.selenium.WebDriver;4import org.openqa.selenium.WebElement;5import org.openqa.selenium.chrome.ChromeDriver;6import org.openqa.selenium.support.ui.ExpectedConditions;7import org.openqa.selenium.support.ui.WebDriverWait;8public class RetrySessionRequestException {9	public static void main(String[] args) {10		System.setProperty("webdriver.chrome.driver", "C:\\Selenium\\chromedriver.exe");11		WebDriver driver = new ChromeDriver();12		WebDriverWait wait = new WebDriverWait(driver, 10);13		button.click();14		System.out.println(alert.getText());15		driver.close();16	}17}

RetrySessionRequestException

Using AI Code Generation

1package com.test;2import java.util.concurrent.TimeUnit;3import org.openqa.selenium.By;4import org.openqa.selenium.WebDriver;5import org.openqa.selenium.chrome.ChromeDriver;6import org.openqa.selenium.chrome.ChromeOptions;7import org.openqa.selenium.support.ui.ExpectedConditions;8import org.openqa.selenium.support.ui.WebDriverWait;9import org.testng.annotations.AfterTest;10import org.testng.annotations.BeforeTest;11import org.testng.annotations.Test;12public class TestClass {13    public static WebDriver driver;14    public void setup() {15        System.setProperty("webdriver.chrome.driver", "C:\\chromedriver.exe");16        ChromeOptions options = new ChromeOptions();17        options.addArguments("--disable-notifications");18        driver = new ChromeDriver(options);19        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);20        driver.manage().window().maximize();21    }22    public void test() throws InterruptedException {23        WebDriverWait wait = new WebDriverWait(driver, 10);24        wait.until(ExpectedConditions.elementToBeClickable(By.id("email"))).sendKeys("

RetrySessionRequestException

Using AI Code Generation

1import org.openqa.selenium.*;2import org.openqa.selenium.By;3import org.openqa.selenium.WebDriver;4import org.openqa.selenium.WebElement;5import org.openqa.selenium.chrome.ChromeDriver;6import org.openqa.selenium.chrome.ChromeOptions;7import org.openqa.selenium.support.ui.ExpectedConditions;8import org.openqa.selenium.support.ui.WebDriverWait;9import org.openqa.selenium.support.ui.ExpectedCondition;10import org.openqa.selenium.support.ui.Select;11import org.openqa.selenium.interactions.Actions;12import org.openqa.selenium.JavascriptExecutor;13import org.openqa.selenium.Keys;14import org.openqa.selenium.TimeoutException;15import org.openqa.selenium.NoSuchElementException;16import org.openqa.selenium.StaleElementReferenceException;17import org.openqa.selenium.WebDriverException;18import org.openqa.selenium.support.ui.FluentWait;19import org.openqa.selenium.support.ui.Wait;20import org.openqa.selenium.support.ui.Select;21import org.openqa.selenium.support.ui.ExpectedConditions;22import org.openqa.selenium.support.ui.FluentWait;23import org.openqa.selenium.support.ui.Wait;24import org.openqa.selenium.support.ui.Select;25import org.openqa.selenium.support.ui.ExpectedConditions;26import org.openqa.selenium.support.ui.FluentWait;27import org.openqa.selenium.support.ui.Wait;28import org.openqa.selenium.support.ui.Select;29import org.openqa.selenium.support.ui.ExpectedConditions;30import org.openqa.selenium.support.ui.FluentWait;31import org.openqa.selenium.support.ui.Wait;32import org.openqa.selenium.support.ui.Select;33import org.openqa.selenium.support.ui.ExpectedConditions;34import org.openqa.selenium.support.ui.FluentWait;35import org.openqa.selenium.support.ui.Wait;36import org.openqa.selenium.support.ui.Select;37import org.openqa.selenium.support.ui.ExpectedConditions;38import org.openqa.selenium.support.ui.FluentWait;39import org.openqa.selenium.support.ui.Wait;40import org.openqa.selenium.support.ui.Select;41import org.openqa.selenium.support.ui.ExpectedConditions;42import org.openqa.selenium.support.ui.FluentWait;43import org.openqa.selenium.support.ui.Wait;44import org.openqa.selenium.support.ui.Select;45import org.openqa.selenium.support.ui.ExpectedConditions;46import org.openqa.selenium.support.ui.FluentWait;47import org.openqa.selenium.support.ui.Wait;48import org.openqa.selenium.support.ui.Select;49import org.openqa.selenium.support.ui.ExpectedConditions;50import org.openqa.selenium.support.ui.FluentWait;51import org.openqa.selenium.support.ui.Wait;52import org.openqa.selenium.support.ui.Select;53import org.openqa.selenium.support.ui.ExpectedConditions;54import org.openqa.selenium.support.ui.FluentWait;55import org.openqa.selenium.support.ui.Wait;56import org.openqa.selenium.support.ui.Select;57import org.openqa.selenium.support.ui.Expected

RetrySessionRequestException

Using AI Code Generation

1import org.openqa.selenium.remote.SessionNotFoundException;2import org.openqa.selenium.remote.UnreachableBrowserException;3import org.openqa.selenium.remote.UnreachableBrowserException;4import org.openqa.selenium.remote.UnreachableBrowserException;5import org.openqa.selenium.remote.UnreachableBrowserException;6import org.openqa.selenium.remote.UnreachableBrowserException;7import org.openqa.selenium.remote.UnreachableBrowserException;8import org.openqa.selenium.remote.UnreachableBrowserException;9import org.openqa.selenium.remote.UnreachableBrowserException;10import org.openqa.selenium.remote.UnreachableBrowserException;11import org.openqa.selenium.remote.UnreachableBrowserException;12import org.openqa.selenium.remote.UnreachableBrowserException;13import org.openqa.selenium.remote.UnreachableBrowserException;14import org.openqa.selenium.remote.UnreachableBrowserException;15import org.openqa.selenium.remote.UnreachableBrowserException;16import org.openqa.selenium.remote.UnreachableBrowserException;17import org.openqa.selenium.remote.UnreachableBrowserException;18import org.openqa.selenium.remote.UnreachableBrowserException;19import org.openqa.selenium.remote.UnreachableBrowserException;20import org.openqa.selenium.remote.UnreachableBrowserException;21import org.openqa.selenium.remote.UnreachableBrowserException;22import org.openqa.selenium.remote.UnreachableBrowserException;23import org.openqa.selenium.remote.UnreachableBrowserException;24import org.openqa.selenium.remote.UnreachableBrowserException;25import org.openqa.selenium.remote.UnreachableBrowserException;26import org.openqa.selenium.remote.UnreachableBrowserException;27import org.openqa.selenium.remote.UnreachableBrowserException;28import org.openqa.selenium.remote.UnreachableBrowserException;29import org.openqa.selenium.remote.UnreachableBrowserException;30import org.openqa.selenium.remote.UnreachableBrowserException;31import org.openqa.selenium.remote.UnreachableBrowserException;32import org.openqa.selenium.remote.UnreachableBrowserException;33import org.openqa.selenium.remote.UnreachableBrowserException;34import org.openqa.selenium.remote.UnreachableBrowserException;35import org.openqa.selenium.remote.UnreachableBrowserException;36import org.openqa.selenium.remote.UnreachableBrowserException;37import org.openqa.selenium.remote.UnreachableBrowserException;38import org.openqa.selenium.remote.UnreachableBrowserException;39import org.openqa.selenium.remote.UnreachableBrowserException;40import org.openqa.selenium.remote.UnreachableBrowserException;41import org.openqa.selenium.remote.UnreachableBrowserException;42import org.openqa.selenium.remote.UnreachableBrowserException;43import org.openqa.selenium.remote.UnreachableBrowserException;44import org.openqa.selenium.remote.UnreachableBrowserException;45import org.openqa.selenium.remote.UnreachableBrowserException;46import org.openqa.selenium.remote.UnreachableBrowserException;47import org

RetrySessionRequestException

Using AI Code Generation

1import org.openqa.selenium.remote.RemoteWebDriver;2import org.openqa.selenium.remote.SessionNotFoundException;3import org.openqa.selenium.remote.http.HttpClient;4import org.openqa.selenium.remote.http.HttpRequest;5import org.openqa.selenium.remote.http.HttpResponse;6import org.openqa.selenium.remote.service.DriverService;7import java.io.IOException;8import java.net.URL;9import java.util.concurrent.TimeUnit;10public class RetrySessionRequestException {11    public static void main(String[] args) {12        RemoteWebDriver driver = new RemoteWebDriver(13                DesiredCapabilities.firefox()) {14            protected void startClient() {15                HttpClient.Factory factory = HttpClient.Factory.createDefault();16                HttpRequest request = new HttpRequest(HttpMethod.POST, "/session");17                request.setContent(ContentType.JSON, getCapabilities().asMap());18                DriverService service = getDriverService();19                int retries = 5;20                long interval = TimeUnit.SECONDS.toMillis(1);21                while (retries-- > 0) {22                    HttpResponse response = null;23                    try {24                        response = factory.createClient(service.getUrl()).execute(request, true);25                        if (response != null) {

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