[ONOS-7905] Add manager and store for k8s network and ports with unit tests
Change-Id: Idd7a8762edbc4bc6d14fd7b22d2218897e7ea0c0
diff --git a/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/impl/DistributedK8sNetworkStore.java b/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/impl/DistributedK8sNetworkStore.java
new file mode 100644
index 0000000..8e54bef
--- /dev/null
+++ b/apps/k8s-networking/app/src/main/java/org/onosproject/k8snetworking/impl/DistributedK8sNetworkStore.java
@@ -0,0 +1,276 @@
+/*
+ * Copyright 2019-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.k8snetworking.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.k8snetworking.api.DefaultK8sNetwork;
+import org.onosproject.k8snetworking.api.DefaultK8sPort;
+import org.onosproject.k8snetworking.api.K8sNetwork;
+import org.onosproject.k8snetworking.api.K8sNetworkEvent;
+import org.onosproject.k8snetworking.api.K8sNetworkStore;
+import org.onosproject.k8snetworking.api.K8sNetworkStoreDelegate;
+import org.onosproject.k8snetworking.api.K8sPort;
+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.k8snetworking.api.K8sNetworkEvent.Type.K8S_NETWORK_CREATED;
+import static org.onosproject.k8snetworking.api.K8sNetworkEvent.Type.K8S_NETWORK_REMOVED;
+import static org.onosproject.k8snetworking.api.K8sNetworkEvent.Type.K8S_NETWORK_UPDATED;
+import static org.onosproject.k8snetworking.api.K8sNetworkEvent.Type.K8S_PORT_CREATED;
+import static org.onosproject.k8snetworking.api.K8sNetworkEvent.Type.K8S_PORT_REMOVED;
+import static org.onosproject.k8snetworking.api.K8sNetworkEvent.Type.K8S_PORT_UPDATED;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Implementation of kubernetes network store using consistent map.
+ */
+@Component(immediate = true, service = K8sNetworkStore.class)
+public class DistributedK8sNetworkStore
+ extends AbstractStore<K8sNetworkEvent, K8sNetworkStoreDelegate>
+ implements K8sNetworkStore {
+
+ 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.k8snetwork";
+
+ private static final KryoNamespace
+ SERIALIZER_K8S_NETWORK_PORT = KryoNamespace.newBuilder()
+ .register(KryoNamespaces.API)
+ .register(K8sNetwork.class)
+ .register(K8sNetwork.Type.class)
+ .register(DefaultK8sNetwork.class)
+ .register(K8sPort.class)
+ .register(K8sPort.State.class)
+ .register(DefaultK8sPort.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, K8sNetwork> networkMapListener =
+ new K8sNetworkMapListener();
+ private final MapEventListener<String, K8sPort> portMapListener =
+ new K8sPortMapListener();
+
+ private ConsistentMap<String, K8sNetwork> networkStore;
+ private ConsistentMap<String, K8sPort> portStore;
+
+ @Activate
+ protected void activate() {
+ ApplicationId appId = coreService.registerApplication(APP_ID);
+ networkStore = storageService.<String, K8sNetwork>consistentMapBuilder()
+ .withSerializer(Serializer.using(SERIALIZER_K8S_NETWORK_PORT))
+ .withName("k8s-networkstore")
+ .withApplicationId(appId)
+ .build();
+ portStore = storageService.<String, K8sPort>consistentMapBuilder()
+ .withSerializer(Serializer.using(SERIALIZER_K8S_NETWORK_PORT))
+ .withName("k8s-portstore")
+ .withApplicationId(appId)
+ .build();
+ networkStore.addListener(networkMapListener);
+ portStore.addListener(portMapListener);
+ log.info("Started");
+ }
+
+ @Deactivate
+ protected void deactivate() {
+ networkStore.removeListener(networkMapListener);
+ portStore.removeListener(portMapListener);
+ eventExecutor.shutdown();
+ log.info("Stopped");
+ }
+
+ @Override
+ public void createNetwork(K8sNetwork network) {
+ networkStore.compute(network.networkId(), (networkId, existing) -> {
+ final String error = network.networkId() + ERR_DUPLICATE;
+ checkArgument(existing == null, error);
+ return network;
+ });
+ }
+
+ @Override
+ public void updateNetwork(K8sNetwork network) {
+ networkStore.compute(network.networkId(), (networkId, existing) -> {
+ final String error = network.networkId() + ERR_NOT_FOUND;
+ checkArgument(existing != null, error);
+ return network;
+ });
+ }
+
+ @Override
+ public K8sNetwork removeNetwork(String networkId) {
+ Versioned<K8sNetwork> network = networkStore.remove(networkId);
+ if (network == null) {
+ final String error = networkId + ERR_NOT_FOUND;
+ throw new IllegalArgumentException(error);
+ }
+ return network.value();
+ }
+
+ @Override
+ public K8sNetwork network(String networkId) {
+ return networkStore.asJavaMap().get(networkId);
+ }
+
+ @Override
+ public Set<K8sNetwork> networks() {
+ return ImmutableSet.copyOf(networkStore.asJavaMap().values());
+ }
+
+ @Override
+ public void createPort(K8sPort port) {
+ portStore.compute(port.portId(), (portId, existing) -> {
+ final String error = port.portId() + ERR_DUPLICATE;
+ checkArgument(existing == null, error);
+ return port;
+ });
+ }
+
+ @Override
+ public void updatePort(K8sPort port) {
+ portStore.compute(port.portId(), (portId, existing) -> {
+ final String error = port.portId() + ERR_NOT_FOUND;
+ checkArgument(existing != null, error);
+ return port;
+ });
+ }
+
+ @Override
+ public K8sPort removePort(String portId) {
+ Versioned<K8sPort> port = portStore.remove(portId);
+ if (port == null) {
+ final String error = portId + ERR_NOT_FOUND;
+ throw new IllegalArgumentException(error);
+ }
+ return port.value();
+ }
+
+ @Override
+ public Set<K8sPort> ports() {
+ return ImmutableSet.copyOf(portStore.asJavaMap().values());
+ }
+
+ @Override
+ public K8sPort port(String portId) {
+ return portStore.asJavaMap().get(portId);
+ }
+
+ @Override
+ public void clear() {
+ portStore.clear();
+ networkStore.clear();
+ }
+
+ private class K8sNetworkMapListener implements MapEventListener<String, K8sNetwork> {
+
+ @Override
+ public void event(MapEvent<String, K8sNetwork> event) {
+
+ switch (event.type()) {
+ case INSERT:
+ log.debug("Kubernetes network created {}", event.newValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sNetworkEvent(
+ K8S_NETWORK_CREATED, event.newValue().value())));
+ break;
+ case UPDATE:
+ log.debug("Kubernetes network updated {}", event.newValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sNetworkEvent(
+ K8S_NETWORK_UPDATED, event.newValue().value())));
+ break;
+ case REMOVE:
+ log.debug("Kubernetes network removed {}", event.oldValue());
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sNetworkEvent(
+ K8S_NETWORK_REMOVED, event.oldValue().value())));
+ break;
+ default:
+ // do nothing
+ break;
+ }
+ }
+ }
+
+ private class K8sPortMapListener implements MapEventListener<String, K8sPort> {
+
+ @Override
+ public void event(MapEvent<String, K8sPort> event) {
+
+ switch (event.type()) {
+ case INSERT:
+ log.debug("Kubernetes port created");
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sNetworkEvent(
+ K8S_PORT_CREATED,
+ network(event.newValue().value().networkId()),
+ event.newValue().value())));
+ break;
+ case UPDATE:
+ log.debug("Kubernetes port updated");
+ eventExecutor.execute(() ->
+ notifyDelegate(new K8sNetworkEvent(
+ K8S_PORT_UPDATED,
+ network(event.newValue().value().networkId()),
+ event.newValue().value())));
+ break;
+ case REMOVE:
+ log.debug("Kubernetes port removed");
+ notifyDelegate(new K8sNetworkEvent(
+ K8S_PORT_REMOVED,
+ network(event.oldValue().value().networkId()),
+ event.oldValue().value()));
+ break;
+ default:
+ // do nothing
+ break;
+ }
+ }
+ }
+}