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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.incubator.net.mcast.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.packet.IpPrefix;
import org.onlab.util.KryoNamespace;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.event.AbstractListenerManager;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.mcast.McastEvent;
import org.onosproject.net.mcast.McastListener;
import org.onosproject.net.mcast.McastRoute;
import org.onosproject.net.mcast.MulticastRouteService;
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 java.util.List;
import java.util.concurrent.atomic.AtomicReference;
import static org.slf4j.LoggerFactory.getLogger;
/**
* An implementation of a multicast route table.
*/
@Component(immediate = true)
@Service
public class MulticastRouteManager
extends AbstractListenerManager<McastEvent, McastListener>
implements MulticastRouteService {
//TODO: add MulticastRouteAdminService
private static final String MCASTRIB = "mcast-rib-table";
private Logger log = getLogger(getClass());
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
private StorageService storageService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
private CoreService coreService;
protected ApplicationId appId;
protected ConsistentMap<McastRoute, MulticastData> mcastRoutes;
@Activate
public void activate() {
eventDispatcher.addSink(McastEvent.class, listenerRegistry);
appId = coreService.registerApplication("org.onosproject.mcastrib");
mcastRoutes = storageService.<McastRoute, MulticastData>consistentMapBuilder()
.withApplicationId(appId)
.withName(MCASTRIB)
.withSerializer(Serializer.using(KryoNamespace.newBuilder().register(
MulticastData.class,
McastRoute.class,
McastRoute.Type.class,
IpPrefix.class,
List.class,
ConnectPoint.class
).build())).build();
log.info("Started");
}
@Deactivate
public void deactivate() {
log.info("Stopped");
}
@Override
public void add(McastRoute route) {
mcastRoutes.put(route, MulticastData.empty());
post(new McastEvent(McastEvent.Type.ROUTE_ADDED, route, null, null));
}
@Override
public void remove(McastRoute route) {
mcastRoutes.remove(route);
post(new McastEvent(McastEvent.Type.ROUTE_REMOVED, route, null, null));
}
@Override
public void addSource(McastRoute route, ConnectPoint connectPoint) {
Versioned<MulticastData> d = mcastRoutes.compute(route, (k, v) -> {
if (v.isEmpty()) {
return new MulticastData(connectPoint);
} else {
log.warn("Route {} is already in use.", route);
return v;
}
});
if (d != null) {
post(new McastEvent(McastEvent.Type.SOURCE_ADDED,
route, null, connectPoint));
}
}
@Override
public void addSink(McastRoute route, ConnectPoint connectPoint) {
AtomicReference<ConnectPoint> source = new AtomicReference<>();
mcastRoutes.compute(route, (k, v) -> {
if (!v.isEmpty()) {
v.appendSink(connectPoint);
source.set(v.source());
} else {
log.warn("Route {} does not exist");
}
return v;
});
if (source.get() != null) {
post(new McastEvent(McastEvent.Type.SINK_ADDED, route,
connectPoint, source.get()));
}
}
@Override
public void removeSink(McastRoute route, ConnectPoint connectPoint) {
AtomicReference<ConnectPoint> source = new AtomicReference<>();
mcastRoutes.compute(route, (k, v) -> {
if (v.removeSink(connectPoint)) {
source.set(v.source());
}
return v;
});
if (source.get() != null) {
post(new McastEvent(McastEvent.Type.SINK_REMOVED, route,
connectPoint, source.get()));
}
}
@Override
public ConnectPoint fetchSource(McastRoute route) {
MulticastData d = mcastRoutes.asJavaMap().getOrDefault(route,
MulticastData.empty());
return d.source();
}
@Override
public List<ConnectPoint> fetchSinks(McastRoute route) {
MulticastData d = mcastRoutes.asJavaMap().getOrDefault(route,
MulticastData.empty());
return d.sinks();
}
}
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