| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.onosproject.routeservice.impl; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.routeservice.Route; |
| import org.onosproject.routeservice.RouteAdminService; |
| import org.onosproject.routeservice.RouteConfig; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.basics.SubjectFactories; |
| |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Route source that installs static routes configured in the network configuration. |
| */ |
| @Component(immediate = true) |
| public class ConfigurationRouteSource { |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry netcfgRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected RouteAdminService routeService; |
| |
| private final ConfigFactory<ApplicationId, RouteConfig> routeConfigFactory = |
| new ConfigFactory<ApplicationId, RouteConfig>( |
| SubjectFactories.APP_SUBJECT_FACTORY, |
| RouteConfig.class, "routes", true) { |
| @Override |
| public RouteConfig createConfig() { |
| return new RouteConfig(); |
| } |
| }; |
| private final InternalNetworkConfigListener netcfgListener = |
| new InternalNetworkConfigListener(); |
| |
| @Activate |
| protected void activate() { |
| netcfgRegistry.addListener(netcfgListener); |
| netcfgRegistry.registerConfigFactory(routeConfigFactory); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| netcfgRegistry.removeListener(netcfgListener); |
| netcfgRegistry.unregisterConfigFactory(routeConfigFactory); |
| } |
| |
| private void processRouteConfigAdded(NetworkConfigEvent event) { |
| Set<Route> routes = ((RouteConfig) event.config().get()).getRoutes(); |
| routeService.update(routes); |
| } |
| |
| private void processRouteConfigUpdated(NetworkConfigEvent event) { |
| Set<Route> routes = ((RouteConfig) event.config().get()).getRoutes(); |
| Set<Route> prevRoutes = ((RouteConfig) event.prevConfig().get()).getRoutes(); |
| Set<Route> pendingRemove = prevRoutes.stream() |
| .filter(prevRoute -> routes.stream() |
| .noneMatch(route -> route.prefix().equals(prevRoute.prefix()))) |
| .collect(Collectors.toSet()); |
| Set<Route> pendingUpdate = routes.stream() |
| .filter(route -> !pendingRemove.contains(route)).collect(Collectors.toSet()); |
| routeService.update(pendingUpdate); |
| routeService.withdraw(pendingRemove); |
| } |
| |
| private void processRouteConfigRemoved(NetworkConfigEvent event) { |
| Set<Route> prevRoutes = ((RouteConfig) event.prevConfig().get()).getRoutes(); |
| routeService.withdraw(prevRoutes); |
| } |
| |
| private class InternalNetworkConfigListener implements |
| NetworkConfigListener { |
| @Override |
| public void event(NetworkConfigEvent event) { |
| if (event.configClass().equals(RouteConfig.class)) { |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| processRouteConfigAdded(event); |
| break; |
| case CONFIG_UPDATED: |
| processRouteConfigUpdated(event); |
| break; |
| case CONFIG_REMOVED: |
| processRouteConfigRemoved(event); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |
| } |