| /* |
| * 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.onosproject.ofagent.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.incubator.net.virtual.NetworkId; |
| import org.onosproject.net.TenantId; |
| import org.onosproject.ofagent.api.OFAgent; |
| import org.onosproject.ofagent.api.OFAgentEvent; |
| import org.onosproject.ofagent.api.OFAgentEvent.Type; |
| import org.onosproject.ofagent.api.OFAgentStore; |
| import org.onosproject.ofagent.api.OFAgentStoreDelegate; |
| import org.onosproject.ofagent.api.OFController; |
| 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.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.onosproject.ofagent.api.OFAgent.State.STARTED; |
| import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_CONTROLLER_ADDED; |
| import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_CONTROLLER_REMOVED; |
| import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_STARTED; |
| import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_STOPPED; |
| import static org.onosproject.ofagent.api.OFAgentService.APPLICATION_NAME; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Implementation of the {@link OFAgentStore} with consistent map. |
| */ |
| @Component(immediate = true, service = OFAgentStore.class) |
| public class DistributedOFAgentStore extends AbstractStore<OFAgentEvent, OFAgentStoreDelegate> |
| implements OFAgentStore { |
| |
| 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 KryoNamespace SERIALIZER_OFAGENT = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(OFAgent.class) |
| .register(OFAgent.State.class) |
| .register(NetworkId.class) |
| .register(TenantId.class) |
| .register(DefaultOFAgent.class) |
| .register(OFController.class) |
| .register(DefaultOFController.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<NetworkId, OFAgent> ofAgentMapListener = new OFAgentMapListener(); |
| |
| private ConsistentMap<NetworkId, OFAgent> ofAgentStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication(APPLICATION_NAME); |
| ofAgentStore = storageService.<NetworkId, OFAgent>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_OFAGENT)) |
| .withName("ofagentstore") |
| .withApplicationId(appId) |
| .build(); |
| ofAgentStore.addListener(ofAgentMapListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| ofAgentStore.removeListener(ofAgentMapListener); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void createOfAgent(OFAgent ofAgent) { |
| ofAgentStore.compute(ofAgent.networkId(), (id, existing) -> { |
| final String error = ofAgent.networkId() + ERR_DUPLICATE; |
| checkArgument(existing == null, error); |
| return ofAgent; |
| }); |
| } |
| |
| @Override |
| public void updateOfAgent(OFAgent ofAgent) { |
| ofAgentStore.compute(ofAgent.networkId(), (id, existing) -> { |
| final String error = ofAgent.networkId() + ERR_NOT_FOUND; |
| checkArgument(existing != null, error); |
| return ofAgent; |
| }); |
| } |
| |
| @Override |
| public OFAgent removeOfAgent(NetworkId networkId) { |
| Versioned<OFAgent> ofAgent = ofAgentStore.remove(networkId); |
| return ofAgent == null ? null : ofAgent.value(); |
| } |
| |
| @Override |
| public OFAgent ofAgent(NetworkId networkId) { |
| Versioned<OFAgent> ofAgent = ofAgentStore.get(networkId); |
| return ofAgent == null ? null : ofAgent.value(); |
| } |
| |
| @Override |
| public Set<OFAgent> ofAgents() { |
| Set<OFAgent> ofAgents = ofAgentStore.values().stream() |
| .map(Versioned::value) |
| .collect(Collectors.toSet()); |
| return ImmutableSet.copyOf(ofAgents); |
| } |
| |
| private class OFAgentMapListener implements MapEventListener<NetworkId, OFAgent> { |
| |
| @Override |
| public void event(MapEvent<NetworkId, OFAgent> event) { |
| switch (event.type()) { |
| case INSERT: |
| eventExecutor.execute(() -> { |
| log.debug(OFAgent.TRACER_LOG_TENANT_ID_PREFIX + event.newValue().value().tenantId() |
| + " OFAgent for network {} created", event.key()); |
| notifyDelegate(new OFAgentEvent( |
| Type.OFAGENT_CREATED, |
| event.newValue().value())); |
| }); |
| break; |
| case UPDATE: |
| eventExecutor.execute(() -> { |
| log.debug(OFAgent.TRACER_LOG_TENANT_ID_PREFIX + event.newValue().value().tenantId() |
| + " OFAgent for network {} updated", event.key()); |
| processUpdated(event.oldValue().value(), event.newValue().value()); |
| }); |
| break; |
| case REMOVE: |
| eventExecutor.execute(() -> { |
| log.debug(OFAgent.TRACER_LOG_TENANT_ID_PREFIX + event.oldValue().value().tenantId() |
| + " OFAgent for network {} removed", event.key()); |
| notifyDelegate(new OFAgentEvent( |
| Type.OFAGENT_REMOVED, |
| event.oldValue().value())); |
| }); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void processUpdated(OFAgent oldValue, OFAgent newValue) { |
| if (!oldValue.controllers().equals(newValue.controllers())) { |
| oldValue.controllers().stream() |
| .filter(controller -> !newValue.controllers().contains(controller)) |
| .forEach(controller -> notifyDelegate(new OFAgentEvent( |
| OFAGENT_CONTROLLER_REMOVED, |
| newValue, |
| controller) |
| )); |
| |
| newValue.controllers().stream() |
| .filter(controller -> !oldValue.controllers().contains(controller)) |
| .forEach(controller -> notifyDelegate(new OFAgentEvent( |
| OFAGENT_CONTROLLER_ADDED, |
| newValue, |
| controller |
| ))); |
| } |
| |
| if (oldValue.state() != newValue.state()) { |
| Type eventType = newValue.state() == STARTED ? OFAGENT_STARTED : OFAGENT_STOPPED; |
| notifyDelegate(new OFAgentEvent(eventType, newValue)); |
| } |
| } |
| } |
| } |