Examples with ServerStartupEvent io.micronaut.runtime.server.event.ServerStartupEvent used on opensource projects

Example 1 with ServerStartupEvent

use of io.micronaut.runtime.server.event.ServerStartupEvent in project micronaut-core by micronaut-projects.

the class NettyHttpServer method fireStartupEvents.

private void fireStartupEvents() {
    Optional<String> applicationName = serverConfiguration.getApplicationConfiguration().getName();
    applicationContext.getEventPublisher(ServerStartupEvent.class).publishEvent(new ServerStartupEvent(this));
    applicationName.ifPresent(id -> {
        this.serviceInstance = applicationContext.createBean(NettyEmbeddedServerInstance.class, id, this);
        applicationContext.getEventPublisher(ServiceReadyEvent.class).publishEvent(new ServiceReadyEvent(serviceInstance));
    });
}

Example 2 with ServerStartupEvent

use of io.micronaut.runtime.server.event.ServerStartupEvent in project micronaut-core by micronaut-projects.

the class ServiceHttpClientFactory method healthCheckStarter.

/**
 * Creates a {@link ApplicationEventListener} that listens to {@link ServerStartupEvent} for each configured HTTP client
 * in order to register a health check if necessary.
 *
 * @param configuration The configuration
 * @param instanceList  The instance list
 * @return The event listener
 */
@EachBean(ServiceHttpClientConfiguration.class)
@Requires(condition = ServiceHttpClientCondition.class)
ApplicationEventListener<ServerStartupEvent> healthCheckStarter(@Parameter ServiceHttpClientConfiguration configuration, @Parameter StaticServiceInstanceList instanceList) {
    if (configuration.isHealthCheck()) {
        return event -> {
            final List<URI> originalURLs = configuration.getUrls();
            Collection<URI> loadBalancedURIs = instanceList.getLoadBalancedURIs();
            final HttpClient httpClient = clientFactory.get().getClient(configuration.getHttpVersion(), configuration.getServiceId(), configuration.getPath().orElse(null));
            final Duration initialDelay = configuration.getHealthCheckInterval();
            Duration delay = configuration.getHealthCheckInterval();
            taskScheduler.scheduleWithFixedDelay(initialDelay, delay, () -> Flux.fromIterable(originalURLs).flatMap(originalURI -> {
                URI healthCheckURI = originalURI.resolve(configuration.getHealthCheckUri());
                return Flux.from(httpClient.exchange(HttpRequest.GET(healthCheckURI))).onErrorResume(throwable -> {
                    if (throwable instanceof HttpClientResponseException) {
                        HttpClientResponseException responseException = (HttpClientResponseException) throwable;
                        return Flux.just((HttpResponse<ByteBuffer>) responseException.getResponse());
                    }
                    return Flux.just(HttpResponse.serverError());
                }).map(response -> Collections.singletonMap(originalURI, response.getStatus()));
            }).subscribe(uriToStatusMap -> {
                Map.Entry<URI, HttpStatus> entry = uriToStatusMap.entrySet().iterator().next();
                URI uri = entry.getKey();
                HttpStatus status = entry.getValue();
                if (status.getCode() >= 300) {
                    loadBalancedURIs.remove(uri);
                } else if (!loadBalancedURIs.contains(uri)) {
                    loadBalancedURIs.add(uri);
                }
            }));
        };
    }
    throw new DisabledBeanException("HTTP Client Health Check not enabled");
}

Example 3 with ServerStartupEvent

use of io.micronaut.runtime.server.event.ServerStartupEvent in project micronaut-grpc by micronaut-projects.

the class GrpcEmbeddedServer method start.

@Override
public EmbeddedServer start() {
    if (running.compareAndSet(false, true)) {
        try {
            server.start();
            eventPublisher.publishEvent(new ServerStartupEvent(this));
            getApplicationConfiguration().getName().ifPresent(id -> {
                Map<String, String> metadata = new LinkedHashMap<>();
                if (computeInstanceMetadataResolver != null) {
                    final Optional<ComputeInstanceMetadata> cim = computeInstanceMetadataResolver.resolve(applicationContext.getEnvironment());
                    cim.ifPresent(computeInstanceMetadata -> metadata.putAll(computeInstanceMetadata.getMetadata()));
                }
                this.serviceInstance = new GrpcServerInstance(this, id, getURI(), metadata, metadataContributors, grpcConfiguration);
                applicationContext.publishEvent(new ServiceReadyEvent(serviceInstance));
            });
        } catch (IOException e) {
            throw new ApplicationStartupException("Unable to start GRPC server: " + e.getMessage(), e);
        }
    }
    return this;
}