| /* |
| * Copyright 2015-present Open Networking Laboratory |
| * |
| * 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.vtnrsc.flowclassifier.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| 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.event.AbstractListenerManager; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.EventuallyConsistentMap; |
| import org.onosproject.store.service.EventuallyConsistentMapEvent; |
| import org.onosproject.store.service.EventuallyConsistentMapListener; |
| import org.onosproject.store.service.MultiValuedTimestamp; |
| import org.onosproject.store.service.StorageService; |
| import org.onosproject.store.service.WallClockTimestamp; |
| import org.onosproject.vtnrsc.FlowClassifierId; |
| import org.onosproject.vtnrsc.FlowClassifier; |
| import org.onosproject.vtnrsc.flowclassifier.FlowClassifierEvent; |
| import org.onosproject.vtnrsc.flowclassifier.FlowClassifierListener; |
| import org.onosproject.vtnrsc.flowclassifier.FlowClassifierService; |
| import org.slf4j.Logger; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| /** |
| * Provides implementation of the Flow Classifier Service. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class FlowClassifierManager extends AbstractListenerManager<FlowClassifierEvent, FlowClassifierListener> |
| implements FlowClassifierService { |
| |
| private static final String FLOW_CLASSIFIER_NOT_NULL = "Flow Classifier cannot be null"; |
| private static final String FLOW_CLASSIFIER_ID_NOT_NULL = "Flow Classifier Id cannot be null"; |
| private static final String LISTENER_NOT_NULL = "Listener cannot be null"; |
| private static final String EVENT_NOT_NULL = "event cannot be null"; |
| |
| private final Logger log = getLogger(FlowClassifierManager.class); |
| |
| private EventuallyConsistentMap<FlowClassifierId, FlowClassifier> flowClassifierStore; |
| |
| private EventuallyConsistentMapListener<FlowClassifierId, FlowClassifier> flowClassifierListener = |
| new InnerFlowClassifierStoreListener(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| @Activate |
| protected void activate() { |
| eventDispatcher.addSink(FlowClassifierEvent.class, listenerRegistry); |
| KryoNamespace.Builder serializer = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(MultiValuedTimestamp.class) |
| .register(FlowClassifier.class); |
| flowClassifierStore = storageService |
| .<FlowClassifierId, FlowClassifier>eventuallyConsistentMapBuilder() |
| .withName("flowclassifierstore").withSerializer(serializer) |
| .withTimestampProvider((k, v) -> new WallClockTimestamp()).build(); |
| flowClassifierStore.addListener(flowClassifierListener); |
| log.info("Flow Classifier service activated"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| eventDispatcher.removeSink(FlowClassifierEvent.class); |
| flowClassifierStore.destroy(); |
| log.info("Flow Classifier service deactivated"); |
| } |
| |
| @Override |
| public boolean exists(FlowClassifierId id) { |
| checkNotNull(id, FLOW_CLASSIFIER_ID_NOT_NULL); |
| return flowClassifierStore.containsKey(id); |
| } |
| |
| @Override |
| public int getFlowClassifierCount() { |
| return flowClassifierStore.size(); |
| } |
| |
| @Override |
| public Iterable<FlowClassifier> getFlowClassifiers() { |
| return ImmutableList.copyOf(flowClassifierStore.values()); |
| } |
| |
| @Override |
| public FlowClassifier getFlowClassifier(FlowClassifierId id) { |
| checkNotNull(id, FLOW_CLASSIFIER_ID_NOT_NULL); |
| return flowClassifierStore.get(id); |
| } |
| |
| @Override |
| public boolean createFlowClassifier(FlowClassifier flowClassifier) { |
| log.debug("createFlowClassifier"); |
| checkNotNull(flowClassifier, FLOW_CLASSIFIER_NOT_NULL); |
| FlowClassifierId id = flowClassifier.flowClassifierId(); |
| |
| flowClassifierStore.put(id, flowClassifier); |
| if (!flowClassifierStore.containsKey(id)) { |
| log.debug("Flow Classifier creation is failed whose identifier is {}.", id.toString()); |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean updateFlowClassifier(FlowClassifier flowClassifier) { |
| checkNotNull(flowClassifier, FLOW_CLASSIFIER_NOT_NULL); |
| |
| if (!flowClassifierStore.containsKey(flowClassifier.flowClassifierId())) { |
| log.debug("The flowClassifier is not exist whose identifier was {} ", flowClassifier.flowClassifierId() |
| .toString()); |
| return false; |
| } |
| |
| flowClassifierStore.put(flowClassifier.flowClassifierId(), flowClassifier); |
| |
| if (!flowClassifier.equals(flowClassifierStore.get(flowClassifier.flowClassifierId()))) { |
| log.debug("Updation of flowClassifier is failed whose identifier was {} ", flowClassifier |
| .flowClassifierId().toString()); |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean removeFlowClassifier(FlowClassifierId id) { |
| checkNotNull(id, FLOW_CLASSIFIER_ID_NOT_NULL); |
| flowClassifierStore.remove(id); |
| if (flowClassifierStore.containsKey(id)) { |
| log.debug("The Flow Classifier removal is failed whose identifier is {}", id.toString()); |
| return false; |
| } |
| return true; |
| } |
| |
| private class InnerFlowClassifierStoreListener |
| implements |
| EventuallyConsistentMapListener<FlowClassifierId, FlowClassifier> { |
| |
| @Override |
| public void event(EventuallyConsistentMapEvent<FlowClassifierId, FlowClassifier> event) { |
| checkNotNull(event, EVENT_NOT_NULL); |
| FlowClassifier flowClassifier = event.value(); |
| if (EventuallyConsistentMapEvent.Type.PUT == event.type()) { |
| notifyListeners(new FlowClassifierEvent( |
| FlowClassifierEvent.Type.FLOW_CLASSIFIER_PUT, |
| flowClassifier)); |
| } |
| if (EventuallyConsistentMapEvent.Type.REMOVE == event.type()) { |
| notifyListeners(new FlowClassifierEvent( |
| FlowClassifierEvent.Type.FLOW_CLASSIFIER_DELETE, |
| flowClassifier)); |
| } |
| } |
| } |
| |
| /** |
| * Notifies specify event to all listeners. |
| * |
| * @param event flow classifier event |
| */ |
| private void notifyListeners(FlowClassifierEvent event) { |
| checkNotNull(event, EVENT_NOT_NULL); |
| post(event); |
| } |
| } |