Examples with RoutesRefreshedEvent org.springframework.cloud.netflix.zuul.RoutesRefreshedEvent used on opensource projects

Example 1 with RoutesRefreshedEvent

use of org.springframework.cloud.netflix.zuul.RoutesRefreshedEvent in project jhipster-registry by jhipster.

the class ZuulUpdaterService method updateZuulRoutes.

@Scheduled(fixedDelay = 5_000)
public void updateZuulRoutes() {
    boolean isDirty = false;
    List<Application> applications = EurekaServerContextHolder.getInstance().getServerContext().getRegistry().getApplications().getRegisteredApplications();
    for (Application application : applications) {
        for (InstanceInfo instanceInfos : application.getInstances()) {
            if (!instanceInfos.getStatus().equals(InstanceInfo.InstanceStatus.UP) && !instanceInfos.getStatus().equals(InstanceInfo.InstanceStatus.STARTING))
                continue;
            String instanceId = instanceInfos.getId();
            String url = instanceInfos.getHomePageUrl();
            log.debug("Checking instance {} - {} ", instanceId, url);
            ZuulRouteDTO route = new ZuulRouteDTO(instanceId, application.getName().toLowerCase() + "/" + instanceId + "/**", null, url, zuulProperties.isStripPrefix(), zuulProperties.getRetryable(), null, instanceInfos.getStatus().toString());
            if (zuulProperties.getRoutes().containsKey(instanceId)) {
                log.debug("Instance '{}' already registered", instanceId);
                if (!zuulProperties.getRoutes().get(instanceId).getUrl().equals(url) || !((ZuulRouteDTO) zuulProperties.getRoutes().get(instanceId)).getStatus().equals(instanceInfos.getStatus().toString())) {
                    log.debug("Updating instance '{}' with new URL: {}", instanceId, url);
                    zuulProperties.getRoutes().put(instanceId, route);
                    isDirty = true;
                }
            } else {
                log.debug("Adding instance '{}' with URL: {}", instanceId, url);
                zuulProperties.getRoutes().put(instanceId, route);
                isDirty = true;
            }
        }
    }
    List<String> zuulRoutesToRemove = new ArrayList<>();
    for (String key : zuulProperties.getRoutes().keySet()) {
        if (applications.stream().flatMap(application -> application.getInstances().stream()).filter(instanceInfo -> instanceInfo.getId().equals(key)).count() == 0) {
            log.debug("Removing instance '{}'", key);
            zuulRoutesToRemove.add(key);
            isDirty = true;
        }
    }
    for (String key : zuulRoutesToRemove) {
        zuulProperties.getRoutes().remove(key);
    }
    if (isDirty) {
        log.info("Zuul routes have changed - refreshing the configuration");
        this.publisher.publishEvent(new RoutesRefreshedEvent(routeLocator));
    }
}