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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.store.flowobjective.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.net.behaviour.DefaultNextGroup;
import org.onosproject.net.behaviour.NextGroup;
import org.onosproject.net.flowobjective.FlowObjectiveStore;
import org.onosproject.net.flowobjective.FlowObjectiveStoreDelegate;
import org.onosproject.net.flowobjective.ObjectiveEvent;
import org.onosproject.store.AbstractStore;
import org.onosproject.store.service.AtomicCounter;
import org.onosproject.store.service.ConsistentMap;
import org.onosproject.store.service.Serializer;
import org.onosproject.store.service.StorageService;
import org.onosproject.store.service.Versioned;
import org.slf4j.Logger;
import static org.slf4j.LoggerFactory.getLogger;
/**
* Manages the inventory of created next groups.
*/
@Component(immediate = true, enabled = true)
@Service
public class DistributedFlowObjectiveStore
extends AbstractStore<ObjectiveEvent, FlowObjectiveStoreDelegate>
implements FlowObjectiveStore {
private final Logger log = getLogger(getClass());
private ConsistentMap<Integer, byte[]> nextGroups;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected StorageService storageService;
private AtomicCounter nextIds;
@Activate
public void activate() {
nextGroups = storageService.<Integer, byte[]>consistentMapBuilder()
.withName("flowobjective-groups")
.withSerializer(Serializer.using(
new KryoNamespace.Builder()
.register(byte[].class)
.register(Versioned.class)
.build()))
.build();
nextIds = storageService.atomicCounterBuilder()
.withName("next-objective-counter")
.build();
log.info("Started");
}
@Deactivate
public void deactivate() {
log.info("Stopped");
}
@Override
public void putNextGroup(Integer nextId, NextGroup group) {
nextGroups.putIfAbsent(nextId, group.data());
notifyDelegate(new ObjectiveEvent(ObjectiveEvent.Type.ADD, nextId));
}
@Override
public NextGroup getNextGroup(Integer nextId) {
Versioned<byte[]> versionGroup = nextGroups.get(nextId);
if (versionGroup != null) {
return new DefaultNextGroup(versionGroup.value());
}
return null;
}
@Override
public int allocateNextId() {
return (int) nextIds.incrementAndGet();
}
}
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