Implement kubevirt router store, manager and codec with unit tests
Change-Id: Ib93a71326aa35b4817f0e6b6c97d5f57b26fe470
diff --git a/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/impl/KubevirtRouterManager.java b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/impl/KubevirtRouterManager.java
new file mode 100644
index 0000000..bae3ff9
--- /dev/null
+++ b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/impl/KubevirtRouterManager.java
@@ -0,0 +1,172 @@
+/*
+ * 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.base.Strings;
+import com.google.common.collect.ImmutableSet;
+import org.onlab.packet.MacAddress;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.event.ListenerRegistry;
+import org.onosproject.kubevirtnetworking.api.KubevirtPeerRouter;
+import org.onosproject.kubevirtnetworking.api.KubevirtRouter;
+import org.onosproject.kubevirtnetworking.api.KubevirtRouterAdminService;
+import org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent;
+import org.onosproject.kubevirtnetworking.api.KubevirtRouterListener;
+import org.onosproject.kubevirtnetworking.api.KubevirtRouterService;
+import org.onosproject.kubevirtnetworking.api.KubevirtRouterStore;
+import org.onosproject.kubevirtnetworking.api.KubevirtRouterStoreDelegate;
+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.Set;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onosproject.kubevirtnetworking.api.Constants.KUBEVIRT_NETWORKING_APP_ID;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Provides implementation of administering and interfacing kubevirt router.
+ */
+@Component(
+ immediate = true,
+ service = {KubevirtRouterAdminService.class, KubevirtRouterService.class }
+)
+public class KubevirtRouterManager
+ extends ListenerRegistry<KubevirtRouterEvent, KubevirtRouterListener>
+ implements KubevirtRouterAdminService, KubevirtRouterService {
+
+ protected final Logger log = getLogger(getClass());
+
+ private static final String MSG_ROUTER = "Kubevirt router %s %s";
+ private static final String MSG_CREATED = "created";
+ private static final String MSG_UPDATED = "updated";
+ private static final String MSG_REMOVED = "removed";
+
+ private static final String ERR_NULL_ROUTER = "Kubevirt router cannot be null";
+ private static final String ERR_NULL_ROUTER_NAME = "Kubevirt router name cannot be null";
+ private static final String ERR_IN_USE = " still in use";
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY)
+ protected CoreService coreService;
+
+ @Reference(cardinality = ReferenceCardinality.MANDATORY)
+ protected KubevirtRouterStore kubevirtRouterStore;
+
+ private final InternalRouterStorageDelegate delegate = new InternalRouterStorageDelegate();
+
+ private ApplicationId appId;
+
+ @Activate
+ protected void activate() {
+ appId = coreService.registerApplication(KUBEVIRT_NETWORKING_APP_ID);
+
+ kubevirtRouterStore.setDelegate(delegate);
+ log.info("Started");
+ }
+
+ @Deactivate
+ protected void deactivate() {
+ kubevirtRouterStore.unsetDelegate(delegate);
+ log.info("Stopped");
+ }
+
+ @Override
+ public void createRouter(KubevirtRouter router) {
+ checkNotNull(router, ERR_NULL_ROUTER);
+ checkArgument(!Strings.isNullOrEmpty(router.name()), ERR_NULL_ROUTER_NAME);
+
+ kubevirtRouterStore.createRouter(router);
+ log.info(String.format(MSG_ROUTER, router.name(), MSG_CREATED));
+ }
+
+ @Override
+ public void updateRouter(KubevirtRouter router) {
+ checkNotNull(router, ERR_NULL_ROUTER);
+ checkArgument(!Strings.isNullOrEmpty(router.name()), ERR_NULL_ROUTER_NAME);
+
+ kubevirtRouterStore.updateRouter(router);
+ log.info(String.format(MSG_ROUTER, router.name(), MSG_UPDATED));
+ }
+
+ @Override
+ public void removeRouter(String name) {
+ checkArgument(name != null, ERR_NULL_ROUTER_NAME);
+ synchronized (this) {
+ if (isRouterInUse(name)) {
+ final String error = String.format(MSG_ROUTER, name, ERR_IN_USE);
+ throw new IllegalStateException(error);
+ }
+
+ KubevirtRouter router = kubevirtRouterStore.removeRouter(name);
+ if (router != null) {
+ log.info(String.format(MSG_ROUTER, router.name(), MSG_REMOVED));
+ }
+ }
+ }
+
+ @Override
+ public void updatePeerRouterMac(String name, MacAddress mac) {
+ KubevirtRouter router = kubevirtRouterStore.router(name);
+ if (router == null) {
+ log.warn("The router is not found with the given name {}", name);
+ return;
+ }
+
+ KubevirtPeerRouter existing = router.peerRouter();
+ if (existing == null) {
+ log.warn("The peer router is not found with the given name {}", name);
+ return;
+ }
+
+ KubevirtPeerRouter updated = new KubevirtPeerRouter(existing.ipAddress(), mac);
+ kubevirtRouterStore.updateRouter(router.updatePeerRouter(updated));
+ }
+
+ @Override
+ public void clear() {
+ kubevirtRouterStore.clear();
+ }
+
+ @Override
+ public KubevirtRouter router(String name) {
+ checkArgument(name != null, ERR_NULL_ROUTER_NAME);
+ return kubevirtRouterStore.router(name);
+ }
+
+ @Override
+ public Set<KubevirtRouter> routers() {
+ return ImmutableSet.copyOf(kubevirtRouterStore.routers());
+ }
+
+ private boolean isRouterInUse(String name) {
+ return false;
+ }
+
+ private class InternalRouterStorageDelegate implements KubevirtRouterStoreDelegate {
+
+ @Override
+ public void notify(KubevirtRouterEvent event) {
+ log.trace("send kubevirt router event {}", event);
+ process(event);
+ }
+ }
+}