| /* |
| * Copyright 2017-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.opencord.cordvtn.impl; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSet; |
| 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.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.opencord.cordvtn.api.core.ServiceNetworkEvent; |
| import org.opencord.cordvtn.api.core.ServiceNetworkStore; |
| import org.opencord.cordvtn.api.core.ServiceNetworkStoreDelegate; |
| import org.opencord.cordvtn.api.net.AddressPair; |
| import org.opencord.cordvtn.api.net.NetworkId; |
| import org.opencord.cordvtn.api.net.PortId; |
| import org.opencord.cordvtn.api.net.Provider; |
| import org.opencord.cordvtn.api.net.SegmentId; |
| import org.opencord.cordvtn.api.net.ServiceNetwork; |
| import org.opencord.cordvtn.api.net.ServiceNetwork.DependencyType; |
| import org.opencord.cordvtn.api.net.ServicePort; |
| import org.slf4j.Logger; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| import java.util.stream.Collectors; |
| |
| 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.opencord.cordvtn.api.Constants.CORDVTN_APP_ID; |
| import static org.opencord.cordvtn.api.core.ServiceNetworkEvent.Type.*; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Manages the inventory of VTN networks using a {@code ConsistentMap}. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class DistributedServiceNetworkStore extends AbstractStore<ServiceNetworkEvent, ServiceNetworkStoreDelegate> |
| implements ServiceNetworkStore { |
| |
| protected 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 KryoNamespace SERIALIZER_SERVICE = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(ServiceNetwork.class) |
| .register(DefaultServiceNetwork.class) |
| .register(NetworkId.class) |
| .register(SegmentId.class) |
| .register(ServiceNetwork.NetworkType.class) |
| .register(DependencyType.class) |
| .register(ServicePort.class) |
| .register(DefaultServicePort.class) |
| .register(PortId.class) |
| .register(AddressPair.class) |
| .register(Collections.EMPTY_MAP.getClass()) |
| .register(Collections.EMPTY_SET.getClass()) |
| .build(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| private final MapEventListener<PortId, ServicePort> servicePortListener = |
| new ServicePortMapListener(); |
| private final MapEventListener<NetworkId, ServiceNetwork> serviceNetworkListener = |
| new ServiceNetworkMapListener(); |
| |
| private ConsistentMap<NetworkId, ServiceNetwork> serviceNetworkStore; |
| private ConsistentMap<PortId, ServicePort> servicePortStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication(CORDVTN_APP_ID); |
| serviceNetworkStore = storageService.<NetworkId, ServiceNetwork>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_SERVICE)) |
| .withName("cordvtn-servicenetstore") |
| .withApplicationId(appId) |
| .build(); |
| serviceNetworkStore.addListener(serviceNetworkListener); |
| |
| servicePortStore = storageService.<PortId, ServicePort>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_SERVICE)) |
| .withName("cordvtn-serviceportstore") |
| .withApplicationId(appId) |
| .build(); |
| servicePortStore.addListener(servicePortListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| serviceNetworkStore.removeListener(serviceNetworkListener); |
| servicePortStore.removeListener(servicePortListener); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void clear() { |
| synchronized (this) { |
| serviceNetworkStore.clear(); |
| servicePortStore.clear(); |
| } |
| } |
| |
| @Override |
| public void createServiceNetwork(ServiceNetwork snet) { |
| serviceNetworkStore.compute(snet.id(), (id, existing) -> { |
| final String error = snet.name() + ERR_DUPLICATE; |
| checkArgument(existing == null || existing.equals(snet), error); |
| return snet; |
| }); |
| } |
| |
| @Override |
| public void updateServiceNetwork(ServiceNetwork snet) { |
| serviceNetworkStore.compute(snet.id(), (id, existing) -> { |
| final String error = snet.name() + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return snet; |
| }); |
| } |
| |
| @Override |
| public ServiceNetwork removeServiceNetwork(NetworkId netId) { |
| synchronized (this) { |
| Versioned<ServiceNetwork> snet = serviceNetworkStore.remove(netId); |
| return snet == null ? null : snet.value(); |
| } |
| } |
| |
| @Override |
| public ServiceNetwork serviceNetwork(NetworkId netId) { |
| Versioned<ServiceNetwork> versioned = serviceNetworkStore.get(netId); |
| return versioned == null ? null : versioned.value(); |
| } |
| |
| @Override |
| public Set<ServiceNetwork> serviceNetworks() { |
| Set<ServiceNetwork> snets = serviceNetworkStore.values().stream() |
| .map(Versioned::value) |
| .collect(Collectors.toSet()); |
| return ImmutableSet.copyOf(snets); |
| } |
| |
| @Override |
| public void createServicePort(ServicePort sport) { |
| servicePortStore.compute(sport.id(), (id, existing) -> { |
| final String error = sport.id().id() + ERR_DUPLICATE; |
| checkArgument(existing == null || existing.equals(sport), error); |
| return sport; |
| }); |
| } |
| |
| @Override |
| public void updateServicePort(ServicePort sport) { |
| servicePortStore.compute(sport.id(), (id, existing) -> { |
| final String error = sport.id().id() + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return sport; |
| }); |
| } |
| |
| @Override |
| public ServicePort removeServicePort(PortId portId) { |
| Versioned<ServicePort> sport = servicePortStore.remove(portId); |
| return sport.value(); |
| } |
| |
| @Override |
| public ServicePort servicePort(PortId portId) { |
| Versioned<ServicePort> versioned = servicePortStore.get(portId); |
| return versioned == null ? null : versioned.value(); |
| } |
| |
| @Override |
| public Set<ServicePort> servicePorts() { |
| Set<ServicePort> sports = servicePortStore.values().stream() |
| .map(Versioned::value) |
| .collect(Collectors.toSet()); |
| return ImmutableSet.copyOf(sports); |
| } |
| |
| private class ServiceNetworkMapListener implements MapEventListener<NetworkId, ServiceNetwork> { |
| |
| @Override |
| public void event(MapEvent<NetworkId, ServiceNetwork> event) { |
| switch (event.type()) { |
| case UPDATE: |
| log.debug("Service network updated {}", event.newValue()); |
| eventExecutor.execute(() -> { |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_NETWORK_UPDATED, |
| event.newValue().value())); |
| notifyProviderUpdate( |
| event.oldValue().value(), |
| event.newValue().value()); |
| }); |
| break; |
| case INSERT: |
| log.debug("Service network created {}", event.newValue()); |
| eventExecutor.execute(() -> { |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_NETWORK_CREATED, |
| event.newValue().value())); |
| notifyProviderUpdate(null, event.newValue().value()); |
| }); |
| break; |
| case REMOVE: |
| log.debug("Service network removed {}", event.oldValue()); |
| eventExecutor.execute(() -> { |
| notifyProviderUpdate(event.oldValue().value(), null); |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_NETWORK_REMOVED, |
| event.oldValue().value())); |
| }); |
| break; |
| default: |
| log.error("Unsupported event type"); |
| break; |
| } |
| } |
| |
| private void notifyProviderUpdate(ServiceNetwork oldValue, ServiceNetwork newValue) { |
| Map<NetworkId, DependencyType> oldp = |
| oldValue != null ? oldValue.providers() : ImmutableMap.of(); |
| Map<NetworkId, DependencyType> newp = |
| newValue != null ? newValue.providers() : ImmutableMap.of(); |
| |
| oldp.entrySet().stream().filter(p -> !newp.keySet().contains(p.getKey())) |
| .forEach(p -> { |
| Provider providerNet = Provider.builder() |
| .provider(serviceNetwork(p.getKey())) |
| .type(p.getValue()) |
| .build(); |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_NETWORK_PROVIDER_REMOVED, |
| oldValue, |
| providerNet |
| )); |
| }); |
| |
| newp.entrySet().stream().filter(p -> !oldp.keySet().contains(p.getKey())) |
| .forEach(p -> { |
| Provider providerNet = Provider.builder() |
| .provider(serviceNetwork(p.getKey())) |
| .type(p.getValue()) |
| .build(); |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_NETWORK_PROVIDER_ADDED, |
| newValue, |
| providerNet)); |
| }); |
| } |
| } |
| |
| private class ServicePortMapListener implements MapEventListener<PortId, ServicePort> { |
| |
| @Override |
| public void event(MapEvent<PortId, ServicePort> event) { |
| switch (event.type()) { |
| case UPDATE: |
| log.debug("Service port updated {}", event.newValue()); |
| eventExecutor.execute(() -> { |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_PORT_UPDATED, |
| serviceNetwork(event.newValue().value().networkId()), |
| event.newValue().value())); |
| }); |
| break; |
| case INSERT: |
| log.debug("Service port created {}", event.newValue()); |
| eventExecutor.execute(() -> { |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_PORT_CREATED, |
| serviceNetwork(event.newValue().value().networkId()), |
| event.newValue().value())); |
| }); |
| break; |
| case REMOVE: |
| log.debug("Service port removed {}", event.oldValue()); |
| eventExecutor.execute(() -> { |
| notifyDelegate(new ServiceNetworkEvent( |
| SERVICE_PORT_REMOVED, |
| serviceNetwork(event.oldValue().value().networkId()), |
| event.oldValue().value())); |
| }); |
| break; |
| default: |
| log.error("Unsupported event type"); |
| break; |
| } |
| } |
| } |
| } |