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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.domain.impl;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
import com.google.common.collect.Sets;
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.graph.AdjacencyListsGraph;
import org.onlab.graph.Graph;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.net.config.NetworkConfigEvent;
import org.onosproject.net.config.NetworkConfigListener;
import org.onosproject.net.config.NetworkConfigService;
import org.onosproject.incubator.net.domain.DomainEdge;
import org.onosproject.incubator.net.domain.DomainVertex;
import org.onosproject.incubator.net.domain.IntentDomain;
import org.onosproject.incubator.net.domain.IntentDomainAdminService;
import org.onosproject.incubator.net.domain.IntentDomainConfig;
import org.onosproject.incubator.net.domain.IntentDomainId;
import org.onosproject.incubator.net.domain.IntentDomainListener;
import org.onosproject.incubator.net.domain.IntentDomainProvider;
import org.onosproject.incubator.net.domain.IntentDomainService;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.DeviceId;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentMap;
import java.util.stream.Collectors;
/**
* Implementation of the intent domain service.
*/
@Component(immediate = true)
@Service
public class IntentDomainManager
implements IntentDomainService, IntentDomainAdminService {
private final Logger log = LoggerFactory.getLogger(getClass());
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected CoreService coreService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected NetworkConfigService configService;
private NetworkConfigListener cfgListener = new InternalConfigListener();
private final ConcurrentMap<IntentDomainId, IntentDomain> domains = Maps.newConcurrentMap();
private final Multimap<String, IntentDomainId> appToDomain =
Multimaps.synchronizedSetMultimap(HashMultimap.<String, IntentDomainId>create());
private Graph<DomainVertex, DomainEdge> graph;
@Activate
protected void activate() {
configService.addListener(cfgListener);
configService.getSubjects(IntentDomainId.class, IntentDomainConfig.class)
.forEach(this::processConfig);
graph = buildGraph();
log.debug("Graph: {}", graph);
log.info("Started");
}
private void processConfig(IntentDomainId intentDomainId) {
IntentDomainConfig cfg = configService.getConfig(intentDomainId,
IntentDomainConfig.class);
domains.put(intentDomainId, createDomain(intentDomainId, cfg));
appToDomain.put(cfg.applicationName(), intentDomainId);
}
private IntentDomain createDomain(IntentDomainId id, IntentDomainConfig cfg) {
return new IntentDomain(id, cfg.domainName(), cfg.internalDevices(), cfg.edgePorts());
}
private Graph<DomainVertex, DomainEdge> buildGraph() {
Set<DomainVertex> vertices = Sets.newHashSet();
Set<DomainEdge> edges = Sets.newHashSet();
Map<DeviceId, DomainVertex> deviceVertices = Maps.newHashMap();
domains.forEach((id, domain) -> {
DomainVertex domainVertex = new DomainVertex(id);
// Add vertex for domain
vertices.add(domainVertex);
// Add vertices for connection devices
domain.edgePorts().stream()
.map(ConnectPoint::deviceId)
.collect(Collectors.toSet())
.forEach(did -> deviceVertices.putIfAbsent(did, new DomainVertex(did)));
// Add bi-directional edges between each domain and connection device
domain.edgePorts().forEach(cp -> {
DomainVertex deviceVertex = deviceVertices.get(cp.deviceId());
edges.add(new DomainEdge(domainVertex, deviceVertex, cp));
edges.add(new DomainEdge(deviceVertex, domainVertex, cp));
});
});
vertices.addAll(deviceVertices.values());
//FIXME verify graph integrity...
return new AdjacencyListsGraph<>(vertices, edges);
}
@Deactivate
protected void deactivate() {
configService.removeListener(cfgListener);
log.info("Stopped");
}
@Override
public IntentDomain getDomain(IntentDomainId id) {
return domains.get(id);
}
@Override
public Set<IntentDomain> getDomains() {
return ImmutableSet.copyOf(domains.values());
}
@Override
public Set<IntentDomain> getDomains(DeviceId deviceId) {
return domains.values().stream()
.filter(domain ->
domain.internalDevices().contains(deviceId) ||
domain.edgePorts().stream()
.map(ConnectPoint::deviceId)
.anyMatch(d -> d.equals(deviceId)))
.collect(Collectors.toSet());
}
@Override
public Graph<DomainVertex, DomainEdge> getDomainGraph() {
return graph;
}
@Override
public void addListener(IntentDomainListener listener) {
//TODO slide in AbstractListenerManager
}
@Override
public void removeListener(IntentDomainListener listener) {
//TODO slide in AbstractListenerManager
}
@Override
public void registerApplication(ApplicationId applicationId, IntentDomainProvider provider) {
appToDomain.get(applicationId.name()).forEach(d -> domains.get(d).setProvider(provider));
}
@Override
public void unregisterApplication(ApplicationId applicationId) {
appToDomain.get(applicationId.name()).forEach(d -> domains.get(d).unsetProvider());
}
private class InternalConfigListener implements NetworkConfigListener {
@Override
public void event(NetworkConfigEvent event) {
switch (event.type()) {
case CONFIG_ADDED:
case CONFIG_UPDATED:
processConfig((IntentDomainId) event.subject());
graph = buildGraph();
log.debug("Graph: {}", graph);
break;
case CONFIG_REGISTERED:
case CONFIG_UNREGISTERED:
case CONFIG_REMOVED:
default:
//TODO
break;
}
}
@Override
public boolean isRelevant(NetworkConfigEvent event) {
return event.configClass().equals(IntentDomainConfig.class);
}
}
}
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