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/*
* Copyright 2015 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 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.store.serializers.KryoNamespaces;
import org.onosproject.store.service.EventuallyConsistentMap;
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.FlowClassifierService;
import org.slf4j.Logger;
import static org.slf4j.LoggerFactory.getLogger;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.ImmutableList;
/**
* Provides implementation of the Flow Classifier Service.
*/
@Component(immediate = true)
@Service
public class FlowClassifierManager implements FlowClassifierService {
private final Logger log = getLogger(FlowClassifierManager.class);
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 EventuallyConsistentMap<FlowClassifierId, FlowClassifier> flowClassifierStore;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected StorageService storageService;
@Activate
private void activate() {
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();
log.info("Flow Classifier service activated");
}
@Deactivate
private void deactivate() {
flowClassifierStore.destroy();
log.info("Flow Classifier service deactivated");
}
@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 Iterable<FlowClassifier> getFlowClassifiers() {
return ImmutableList.copyOf(flowClassifierStore.values());
}
@Override
public boolean hasFlowClassifier(FlowClassifierId id) {
checkNotNull(id, FLOW_CLASSIFIER_ID_NOT_NULL);
return flowClassifierStore.containsKey(id);
}
@Override
public FlowClassifier getFlowClassifier(FlowClassifierId id) {
checkNotNull(id, FLOW_CLASSIFIER_ID_NOT_NULL);
return flowClassifierStore.get(id);
}
@Override
public boolean updateFlowClassifier(FlowClassifier flowClassifier) {
checkNotNull(flowClassifier, FLOW_CLASSIFIER_NOT_NULL);
FlowClassifierId id = flowClassifier.flowClassifierId();
flowClassifierStore.put(id, flowClassifier);
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;
}
}
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