| /* |
| * Copyright 2020-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.kubevirtnode.impl; |
| |
| /** |
| * Implementation of kubevirt node store using consistent map. |
| */ |
| |
| import com.google.common.collect.ImmutableSet; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.kubevirtnode.api.DefaultKubevirtNode; |
| import org.onosproject.kubevirtnode.api.DefaultKubevirtPhyInterface; |
| import org.onosproject.kubevirtnode.api.KubevirtNode; |
| import org.onosproject.kubevirtnode.api.KubevirtNodeEvent; |
| import org.onosproject.kubevirtnode.api.KubevirtNodeState; |
| import org.onosproject.kubevirtnode.api.KubevirtNodeStore; |
| import org.onosproject.kubevirtnode.api.KubevirtNodeStoreDelegate; |
| import org.onosproject.kubevirtnode.api.KubevirtPhyInterface; |
| 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.kubevirtnode.api.KubevirtNodeEvent.Type.KUBEVIRT_NODE_COMPLETE; |
| import static org.onosproject.kubevirtnode.api.KubevirtNodeEvent.Type.KUBEVIRT_NODE_CREATED; |
| import static org.onosproject.kubevirtnode.api.KubevirtNodeEvent.Type.KUBEVIRT_NODE_INCOMPLETE; |
| import static org.onosproject.kubevirtnode.api.KubevirtNodeEvent.Type.KUBEVIRT_NODE_REMOVED; |
| import static org.onosproject.kubevirtnode.api.KubevirtNodeEvent.Type.KUBEVIRT_NODE_UPDATED; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| @Component(immediate = true, service = KubevirtNodeStore.class) |
| public class DistributedKubevirtNodeStore |
| extends AbstractStore<KubevirtNodeEvent, KubevirtNodeStoreDelegate> |
| implements KubevirtNodeStore { |
| |
| 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.kubevirtnode"; |
| |
| private static final KryoNamespace |
| SERIALIZER_KUBEVIRT_NODE = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(KubevirtNode.class) |
| .register(DefaultKubevirtNode.class) |
| .register(KubevirtPhyInterface.class) |
| .register(DefaultKubevirtPhyInterface.class) |
| .register(KubevirtNode.Type.class) |
| .register(KubevirtNodeState.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, KubevirtNode> nodeMapEventListener = |
| new KubevirtNodeMapListener(); |
| |
| private ConsistentMap<String, KubevirtNode> nodeStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication(APP_ID); |
| nodeStore = storageService.<String, KubevirtNode>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_KUBEVIRT_NODE)) |
| .withName("kubevirt-nodestore") |
| .withApplicationId(appId) |
| .build(); |
| nodeStore.addListener(nodeMapEventListener); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| nodeStore.removeListener(nodeMapEventListener); |
| eventExecutor.shutdown(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createNode(KubevirtNode node) { |
| nodeStore.compute(node.hostname(), (hostname, existing) -> { |
| final String error = node.hostname() + ERR_DUPLICATE; |
| checkArgument(existing == null, error); |
| return node; |
| }); |
| } |
| |
| @Override |
| public void updateNode(KubevirtNode node) { |
| nodeStore.compute(node.hostname(), (hostname, existing) -> { |
| final String error = node.hostname() + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return node; |
| }); |
| } |
| |
| @Override |
| public KubevirtNode removeNode(String hostname) { |
| Versioned<KubevirtNode> node = nodeStore.remove(hostname); |
| if (node == null) { |
| final String error = hostname + ERR_NOT_FOUND; |
| throw new IllegalArgumentException(error); |
| } |
| return node.value(); |
| } |
| |
| @Override |
| public Set<KubevirtNode> nodes() { |
| return ImmutableSet.copyOf(nodeStore.asJavaMap().values()); |
| } |
| |
| @Override |
| public KubevirtNode node(String hostname) { |
| return nodeStore.asJavaMap().get(hostname); |
| } |
| |
| private class KubevirtNodeMapListener |
| implements MapEventListener<String, KubevirtNode> { |
| |
| @Override |
| public void event(MapEvent<String, KubevirtNode> event) { |
| switch (event.type()) { |
| case INSERT: |
| log.debug("Kubevirt node created {}", event.newValue()); |
| eventExecutor.execute(() -> processNodeCreation(event)); |
| break; |
| case UPDATE: |
| log.debug("Kubevirt node updated {}", event.newValue()); |
| eventExecutor.execute(() -> processNodeUpdate(event)); |
| break; |
| case REMOVE: |
| log.debug("Kubevirt node removed {}", event.oldValue()); |
| eventExecutor.execute(() -> processNodeRemoval(event)); |
| break; |
| default: |
| // do nothing |
| break; |
| } |
| } |
| |
| private void processNodeCreation(MapEvent<String, KubevirtNode> event) { |
| notifyDelegate(new KubevirtNodeEvent( |
| KUBEVIRT_NODE_CREATED, event.newValue().value())); |
| } |
| |
| private void processNodeUpdate(MapEvent<String, KubevirtNode> event) { |
| notifyDelegate(new KubevirtNodeEvent( |
| KUBEVIRT_NODE_UPDATED, event.newValue().value())); |
| |
| if (event.newValue().value().state() == KubevirtNodeState.COMPLETE) { |
| notifyDelegate(new KubevirtNodeEvent( |
| KUBEVIRT_NODE_COMPLETE, event.newValue().value())); |
| } else if (event.newValue().value().state() == KubevirtNodeState.INCOMPLETE) { |
| notifyDelegate(new KubevirtNodeEvent( |
| KUBEVIRT_NODE_INCOMPLETE, event.newValue().value())); |
| } |
| } |
| |
| private void processNodeRemoval(MapEvent<String, KubevirtNode> event) { |
| notifyDelegate(new KubevirtNodeEvent( |
| KUBEVIRT_NODE_REMOVED, event.oldValue().value())); |
| } |
| } |
| } |