protected void stopChildService(Route route, Set<Service> services, boolean shutdown)
throws Exception {
for (Service service : services) {
LOG.debug(
"{} child service on route: {} -> {}",
new Object[] {shutdown ? "Shutting down" : "Stopping", route.getId(), service});
if (service instanceof ErrorHandler) {
// special for error handlers
for (LifecycleStrategy strategy : camelContext.getLifecycleStrategies()) {
strategy.onErrorHandlerRemove(
route.getRouteContext(),
(Processor) service,
route.getRouteContext().getRoute().getErrorHandlerBuilder());
}
} else {
for (LifecycleStrategy strategy : camelContext.getLifecycleStrategies()) {
strategy.onServiceRemove(camelContext, service, route);
}
}
if (shutdown) {
ServiceHelper.stopAndShutdownService(service);
} else {
ServiceHelper.stopService(service);
}
removeChildService(service);
}
}
public synchronized void warmUp() throws Exception {
if (endpointDone.compareAndSet(false, true)) {
// endpoints should only be started once as they can be reused on other routes
// and whatnot, thus their lifecycle is to start once, and only to stop when Camel shutdown
for (Route route : routes) {
// ensure endpoint is started first (before the route services, such as the consumer)
ServiceHelper.startService(route.getEndpoint());
}
}
if (warmUpDone.compareAndSet(false, true)) {
for (Route route : routes) {
// warm up the route first
route.warmUp();
LOG.debug("Starting services on route: {}", route.getId());
List<Service> services = route.getServices();
// callback that we are staring these services
route.onStartingServices(services);
// gather list of services to start as we need to start child services as well
Set<Service> list = new LinkedHashSet<Service>();
for (Service service : services) {
list.addAll(ServiceHelper.getChildServices(service));
}
// split into consumers and child services as we need to start the consumers
// afterwards to avoid them being active while the others start
List<Service> childServices = new ArrayList<Service>();
for (Service service : list) {
// inject the route
if (service instanceof RouteAware) {
((RouteAware) service).setRoute(route);
}
if (service instanceof Consumer) {
inputs.put(route, (Consumer) service);
} else {
childServices.add(service);
}
}
startChildService(route, childServices);
// fire event
EventHelper.notifyRouteAdded(camelContext, route);
}
// ensure lifecycle strategy is invoked which among others enlist the route in JMX
for (LifecycleStrategy strategy : camelContext.getLifecycleStrategies()) {
strategy.onRoutesAdd(routes);
}
// add routes to camel context
camelContext.addRouteCollection(routes);
}
}
protected void startChildService(Route route, List<Service> services) throws Exception {
for (Service service : services) {
LOG.debug("Starting child service on route: {} -> {}", route.getId(), service);
for (LifecycleStrategy strategy : camelContext.getLifecycleStrategies()) {
strategy.onServiceAdd(camelContext, service, route);
}
ServiceHelper.startService(service);
addChildService(service);
}
}
@Override
protected void doShutdown() throws Exception {
for (Route route : routes) {
LOG.debug("Shutting down services on route: {}", route.getId());
// gather list of services to stop as we need to start child services as well
Set<Service> services = gatherChildServices(route, true);
// shutdown services
stopChildService(route, services, true);
// shutdown the route itself
ServiceHelper.stopAndShutdownServices(route);
// endpoints should only be stopped when Camel is shutting down
// see more details in the warmUp method
ServiceHelper.stopAndShutdownServices(route.getEndpoint());
// invoke callbacks on route policy
if (route.getRouteContext().getRoutePolicyList() != null) {
for (RoutePolicy routePolicy : route.getRouteContext().getRoutePolicyList()) {
routePolicy.onRemove(route);
}
}
// fire event
EventHelper.notifyRouteRemoved(camelContext, route);
}
// need to call onRoutesRemove when the CamelContext is shutting down or Route is shutdown
for (LifecycleStrategy strategy : camelContext.getLifecycleStrategies()) {
strategy.onRoutesRemove(routes);
}
// remove the routes from the inflight registry
for (Route route : routes) {
camelContext.getInflightRepository().removeRoute(route.getId());
}
// remove the routes from the collections
camelContext.removeRouteCollection(routes);
// clear inputs on shutdown
inputs.clear();
warmUpDone.set(false);
endpointDone.set(false);
}
protected void doStop() throws Exception {
// if we are stopping CamelContext then we are shutting down
boolean isShutdownCamelContext = camelContext.isStopping();
if (isShutdownCamelContext || isRemovingRoutes()) {
// need to call onRoutesRemove when the CamelContext is shutting down or Route is shutdown
for (LifecycleStrategy strategy : camelContext.getLifecycleStrategies()) {
strategy.onRoutesRemove(routes);
}
}
for (Route route : routes) {
LOG.debug("Stopping services on route: {}", route.getId());
// gather list of services to stop as we need to start child services as well
Set<Service> services = gatherChildServices(route, true);
// stop services
stopChildService(route, services, isShutdownCamelContext);
// stop the route itself
if (isShutdownCamelContext) {
ServiceHelper.stopAndShutdownServices(route);
} else {
ServiceHelper.stopServices(route);
}
// invoke callbacks on route policy
if (route.getRouteContext().getRoutePolicyList() != null) {
for (RoutePolicy routePolicy : route.getRouteContext().getRoutePolicyList()) {
routePolicy.onStop(route);
}
}
// fire event
EventHelper.notifyRouteStopped(camelContext, route);
}
if (isRemovingRoutes()) {
camelContext.removeRouteCollection(routes);
}
// need to warm up again
warmUpDone.set(false);
}
