| /* |
| * Copyright 2018-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.openstacknetworking.impl; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.openstacknetworking.api.InstancePortAdminService; |
| import org.onosproject.openstacknetworking.api.OpenstackNetworkEvent; |
| import org.onosproject.openstacknetworking.api.OpenstackNetworkEvent.Type; |
| import org.onosproject.openstacknetworking.api.PreCommitPortService; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.slf4j.Logger; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| import static org.onosproject.openstacknetworking.api.Constants.OPENSTACK_NETWORKING_APP_ID; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Implementation of pre-commit service. |
| */ |
| @Service |
| @Component(immediate = true) |
| public class PreCommitPortManager implements PreCommitPortService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final KryoNamespace SERIALIZER_PRE_COMMIT = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(OpenstackNetworkEvent.Type.class) |
| .build(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| private ConsistentMap<String, Map<Type, Set<String>>> store; |
| |
| @Activate |
| protected void activate() { |
| |
| ApplicationId appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
| |
| store = storageService.<String, Map<Type, Set<String>>>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_PRE_COMMIT)) |
| .withName("openstack-pre-commit-store") |
| .withApplicationId(appId) |
| .build(); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void subscribePreCommit(String portId, Type eventType, String className) { |
| store.computeIfAbsent(portId, s -> new HashMap<>()); |
| |
| store.compute(portId, (k, v) -> { |
| |
| if (className == null || className.isEmpty()) { |
| return null; |
| } |
| |
| Objects.requireNonNull(v).computeIfAbsent(eventType, s -> new HashSet<>()); |
| |
| |
| Objects.requireNonNull(v).compute(eventType, (i, j) -> { |
| Objects.requireNonNull(j).add(className); |
| return j; |
| }); |
| |
| return v; |
| }); |
| } |
| |
| @Override |
| public void unsubscribePreCommit(String portId, Type eventType, |
| InstancePortAdminService service, String className) { |
| |
| store.computeIfPresent(portId, (k, v) -> { |
| |
| if (className == null || className.isEmpty()) { |
| return null; |
| } |
| |
| Objects.requireNonNull(v).computeIfPresent(eventType, (i, j) -> { |
| Objects.requireNonNull(j).remove(className); |
| return j; |
| }); |
| |
| return v; |
| }); |
| |
| if (subscriberCountByEventType(portId, eventType) == 0) { |
| service.removeInstancePort(portId); |
| } |
| } |
| |
| @Override |
| public int subscriberCountByEventType(String portId, Type eventType) { |
| |
| Map<Type, Set<String>> typeMap = store.asJavaMap().get(portId); |
| |
| if (typeMap == null || typeMap.isEmpty()) { |
| return 0; |
| } |
| |
| if (typeMap.get(eventType) == null || typeMap.get(eventType).isEmpty()) { |
| return 0; |
| } |
| |
| return typeMap.get(eventType).size(); |
| } |
| |
| @Override |
| public int subscriberCount(String portId) { |
| |
| Map<Type, Set<String>> typeMap = store.asJavaMap().get(portId); |
| |
| if (typeMap == null || typeMap.isEmpty()) { |
| return 0; |
| } |
| |
| return typeMap.values().stream() |
| .filter(Objects::nonNull) |
| .map(Set::size) |
| .reduce(0, Integer::sum); |
| } |
| } |