* This is because GradleBuild uses a discrete tree (which is intended to change later).
 */
@ServiceScope(Scope.CrossBuildSession.class)
public interface BuildOperationNotificationValve {

    void start();

    void stop();

                                                  BuildOperationNotificationValve buildOperationNotificationValve) {
        this.delegate = delegate;
        this.buildOperationRunner = buildOperationRunner;
        this.loggingBuildOperationProgressBroadcaster = loggingBuildOperationProgressBroadcaster;
        this.buildOperationNotificationValve = buildOperationNotificationValve;
    }

    @Override

            BuildStartedTime buildStartedTime,
            Clock clock,
            LoggingBuildOperationProgressBroadcaster loggingBuildOperationProgressBroadcaster,
            BuildOperationNotificationValve buildOperationNotificationValve,
            BuildTreeModelControllerServices buildModelServices,
            WorkerLeaseService workerLeaseService,
            BuildLayoutValidator buildLayoutValidator,

import org.gradle.internal.operations.logging.LoggingBuildOperationProgressBroadcaster;
import org.gradle.internal.operations.notify.BuildOperationNotificationBridge;
import org.gradle.internal.operations.notify.BuildOperationNotificationValve;
import org.gradle.internal.operations.trace.BuildOperationTrace;
import org.gradle.internal.resources.DefaultResourceLockCoordinationService;
import org.gradle.internal.resources.ResourceLockCoordinationService;

            listenerManager.removeListener(buildListener);
        }
    }

    private State state;

    private final BuildOperationNotificationValve valve = new BuildOperationNotificationValve() {
        @Override
        public void start() {
            if (state != null) {
                throw new IllegalStateException("build operation notification valve already started");