Examples with EventSourceInitializer io.javaoperatorsdk.operator.api.reconciler.EventSourceInitializer used on opensource projects

Example 1 with EventSourceInitializer

use of io.javaoperatorsdk.operator.api.reconciler.EventSourceInitializer in project java-operator-sdk by java-operator-sdk.

the class Controller method start.

/**
 * Registers the specified controller with this operator, overriding its default configuration by
 * the specified one (usually created via
 * {@link io.javaoperatorsdk.operator.api.config.ControllerConfigurationOverrider#override(ControllerConfiguration)},
 * passing it the controller's original configuration.
 *
 * @throws OperatorException if a problem occurred during the registration process
 */
public void start() throws OperatorException {
    final Class<R> resClass = configuration.getResourceClass();
    final String controllerName = configuration.getName();
    final var crdName = configuration.getResourceTypeName();
    final var specVersion = "v1";
    // fail early if we're missing the current namespace information
    failOnMissingCurrentNS();
    try {
        // check that the custom resource is known by the cluster if configured that way
        // todo: check proper CRD spec version based on config
        final CustomResourceDefinition crd;
        if (configurationService().checkCRDAndValidateLocalModel() && CustomResource.class.isAssignableFrom(resClass)) {
            crd = kubernetesClient.apiextensions().v1().customResourceDefinitions().withName(crdName).get();
            if (crd == null) {
                throwMissingCRDException(crdName, specVersion, controllerName);
            }
            // Apply validations that are not handled by fabric8
            CustomResourceUtils.assertCustomResource(resClass, crd);
        }
        eventSourceManager = new EventSourceManager<>(this);
        if (reconciler instanceof EventSourceInitializer) {
            ((EventSourceInitializer<R>) reconciler).prepareEventSources(new EventSourceContext<>(eventSourceManager.getControllerResourceEventSource(), configurationService(), kubernetesClient)).forEach(eventSourceManager::registerEventSource);
        }
        eventSourceManager.start();
    } catch (MissingCRDException e) {
        throwMissingCRDException(crdName, specVersion, controllerName);
    }
}