Initial implementation of kubevirt network with CRUD ops support
Change-Id: I6a366fcd301e67f62a74fb828eea1ac67f2a2128
diff --git a/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/impl/DistributedKubevirtNetworkStore.java b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/impl/DistributedKubevirtNetworkStore.java
new file mode 100644
index 0000000..74c6f03
--- /dev/null
+++ b/apps/kubevirt-networking/app/src/main/java/org/onosproject/kubevirtnetworking/impl/DistributedKubevirtNetworkStore.java
@@ -0,0 +1,186 @@
+/*
+ * 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.DefaultKubevirtNetwork;
+import org.onosproject.kubevirtnetworking.api.KubevirtHostRoute;
+import org.onosproject.kubevirtnetworking.api.KubevirtIpPool;
+import org.onosproject.kubevirtnetworking.api.KubevirtNetwork;
+import org.onosproject.kubevirtnetworking.api.KubevirtNetworkEvent;
+import org.onosproject.kubevirtnetworking.api.KubevirtNetworkStore;
+import org.onosproject.kubevirtnetworking.api.KubevirtNetworkStoreDelegate;
+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.KubevirtNetworkEvent.Type.KUBEVIRT_NETWORK_CREATED;
+import static org.onosproject.kubevirtnetworking.api.KubevirtNetworkEvent.Type.KUBEVIRT_NETWORK_REMOVED;
+import static org.onosproject.kubevirtnetworking.api.KubevirtNetworkEvent.Type.KUBEVIRT_NETWORK_UPDATED;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Implementation of kubevirt network store using consistent map.
+ */
+@Component(immediate = true, service = KubevirtNetworkStore.class)
+public class DistributedKubevirtNetworkStore
+ extends AbstractStore<KubevirtNetworkEvent, KubevirtNetworkStoreDelegate>
+ implements KubevirtNetworkStore {
+ 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_NETWORK = KryoNamespace.newBuilder()
+ .register(KryoNamespaces.API)
+ .register(KubevirtNetwork.class)
+ .register(KubevirtNetwork.Type.class)
+ .register(DefaultKubevirtNetwork.class)
+ .register(KubevirtIpPool.class)
+ .register(KubevirtHostRoute.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, KubevirtNetwork> networkMapListener =
+ new KubevirtNetworkMapListener();
+
+ private ConsistentMap<String, KubevirtNetwork> networkStore;
+
+ @Activate
+ protected void activate() {
+ ApplicationId appId = coreService.registerApplication(APP_ID);
+ networkStore = storageService.<String, KubevirtNetwork>consistentMapBuilder()
+ .withSerializer(Serializer.using(SERIALIZER_KUBEVIRT_NETWORK))
+ .withName("kubevirt-networkstore")
+ .withApplicationId(appId)
+ .build();
+
+ networkStore.addListener(networkMapListener);
+ log.info("Started");
+ }
+
+ @Deactivate
+ protected void deactivate() {
+ networkStore.removeListener(networkMapListener);
+ eventExecutor.shutdown();
+ log.info("Stopped");
+ }
+
+ @Override
+ public void createNetwork(KubevirtNetwork network) {
+ networkStore.compute(network.networkId(), (networkId, existing) -> {
+ final String error = network.networkId() + ERR_DUPLICATE;
+ checkArgument(existing == null, error);
+ return network;
+ });
+ }
+
+ @Override
+ public void updateNetwork(KubevirtNetwork network) {
+ networkStore.compute(network.networkId(), (networkId, existing) -> {
+ final String error = network.networkId() + ERR_NOT_FOUND;
+ checkArgument(existing != null, error);
+ return network;
+ });
+ }
+
+ @Override
+ public KubevirtNetwork removeNetwork(String networkId) {
+ Versioned<KubevirtNetwork> network = networkStore.remove(networkId);
+ if (network == null) {
+ final String error = networkId + ERR_NOT_FOUND;
+ throw new IllegalArgumentException(error);
+ }
+ return network.value();
+ }
+
+ @Override
+ public KubevirtNetwork network(String networkId) {
+ return networkStore.asJavaMap().get(networkId);
+ }
+
+ @Override
+ public Set<KubevirtNetwork> networks() {
+ return ImmutableSet.copyOf(networkStore.asJavaMap().values());
+ }
+
+ @Override
+ public void clear() {
+ networkStore.clear();
+ }
+
+ private class KubevirtNetworkMapListener implements MapEventListener<String, KubevirtNetwork> {
+
+ @Override
+ public void event(MapEvent<String, KubevirtNetwork> event) {
+
+ switch (event.type()) {
+ case INSERT:
+ log.debug("Kubevirt network created {}", event.newValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new KubevirtNetworkEvent(
+ KUBEVIRT_NETWORK_CREATED, event.newValue().value())));
+ break;
+ case UPDATE:
+ log.debug("Kubevirt network updated {}", event.newValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new KubevirtNetworkEvent(
+ KUBEVIRT_NETWORK_UPDATED, event.newValue().value())));
+ break;
+ case REMOVE:
+ log.debug("Kubevirt network removed {}", event.oldValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new KubevirtNetworkEvent(
+ KUBEVIRT_NETWORK_REMOVED, event.oldValue().value())));
+ break;
+ default:
+ // do nothing
+ break;
+ }
+ }
+ }
+}