| /* |
| * Copyright 2021-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.kubevirtnetworking.impl; |
| |
| import com.google.common.collect.ImmutableSet; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.kubevirtnetworking.api.DefaultKubevirtRouter; |
| import org.onosproject.kubevirtnetworking.api.KubevirtPeerRouter; |
| import org.onosproject.kubevirtnetworking.api.KubevirtRouter; |
| import org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent; |
| import org.onosproject.kubevirtnetworking.api.KubevirtRouterStore; |
| import org.onosproject.kubevirtnetworking.api.KubevirtRouterStoreDelegate; |
| import org.onosproject.store.AbstractStore; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.MapEvent; |
| import org.onosproject.store.service.MapEventListener; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.onosproject.store.service.Versioned; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| |
| import java.util.Collection; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent.Type.KUBEVIRT_ROUTER_CREATED; |
| import static org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent.Type.KUBEVIRT_ROUTER_REMOVED; |
| import static org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent.Type.KUBEVIRT_ROUTER_UPDATED; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Implementation of kubevirt router store using consistent map. |
| */ |
| @Component(immediate = true, service = KubevirtRouterStore.class) |
| public class DistributedKubevirtRouterStore |
| extends AbstractStore<KubevirtRouterEvent, KubevirtRouterStoreDelegate> |
| implements KubevirtRouterStore { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final String ERR_NOT_FOUND = " does not exist"; |
| private static final String ERR_DUPLICATE = " already exists"; |
| private static final String APP_ID = "org.onosproject.kubevirtnetwork"; |
| |
| private static final KryoNamespace |
| SERIALIZER_KUBEVIRT_ROUTER = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(KubevirtRouter.class) |
| .register(DefaultKubevirtRouter.class) |
| .register(KubevirtPeerRouter.class) |
| .register(Collection.class) |
| .build(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected StorageService storageService; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| |
| private final MapEventListener<String, KubevirtRouter> routerMapListener = |
| new KubevirtRouterMapListener(); |
| |
| private ConsistentMap<String, KubevirtRouter> routerStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication(APP_ID); |
| routerStore = storageService.<String, KubevirtRouter>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_KUBEVIRT_ROUTER)) |
| .withName("kubevirt-routerstore") |
| .withApplicationId(appId) |
| .build(); |
| routerStore.addListener(routerMapListener); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| routerStore.removeListener(routerMapListener); |
| eventExecutor.shutdown(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createRouter(KubevirtRouter router) { |
| routerStore.compute(router.name(), (name, existing) -> { |
| final String error = router.name() + ERR_DUPLICATE; |
| checkArgument(existing == null, error); |
| return router; |
| }); |
| } |
| |
| @Override |
| public void updateRouter(KubevirtRouter router) { |
| routerStore.compute(router.name(), (name, existing) -> { |
| final String error = router.name() + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return router; |
| }); |
| } |
| |
| @Override |
| public KubevirtRouter removeRouter(String name) { |
| Versioned<KubevirtRouter> router = routerStore.remove(name); |
| if (router == null) { |
| final String error = name + ERR_NOT_FOUND; |
| throw new IllegalArgumentException(error); |
| } |
| return router.value(); |
| } |
| |
| @Override |
| public KubevirtRouter router(String name) { |
| return routerStore.asJavaMap().get(name); |
| } |
| |
| @Override |
| public Set<KubevirtRouter> routers() { |
| return ImmutableSet.copyOf(routerStore.asJavaMap().values()); |
| } |
| |
| @Override |
| public void clear() { |
| routerStore.clear(); |
| } |
| |
| private class KubevirtRouterMapListener implements MapEventListener<String, KubevirtRouter> { |
| |
| @Override |
| public void event(MapEvent<String, KubevirtRouter> event) { |
| switch (event.type()) { |
| case INSERT: |
| log.debug("Kubevirt router created"); |
| eventExecutor.execute(() -> |
| notifyDelegate(new KubevirtRouterEvent( |
| KUBEVIRT_ROUTER_CREATED, event.newValue().value()))); |
| break; |
| case UPDATE: |
| log.debug("Kubevirt router updated"); |
| eventExecutor.execute(() -> |
| notifyDelegate(new KubevirtRouterEvent( |
| KUBEVIRT_ROUTER_UPDATED, event.newValue().value()))); |
| break; |
| case REMOVE: |
| log.debug("Kubevirt router removed"); |
| eventExecutor.execute(() -> |
| notifyDelegate(new KubevirtRouterEvent( |
| KUBEVIRT_ROUTER_REMOVED, event.oldValue().value()))); |
| break; |
| default: |
| // do nothing |
| break; |
| } |
| } |
| } |
| } |