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/*
* Copyright 2014-2015 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.sdnip;
import static org.slf4j.LoggerFactory.getLogger;
import java.util.Objects;
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.onosproject.app.ApplicationService;
import org.onosproject.cluster.ClusterService;
import org.onosproject.cluster.ControllerNode;
import org.onosproject.cluster.LeadershipEvent;
import org.onosproject.cluster.LeadershipEventListener;
import org.onosproject.cluster.LeadershipService;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.incubator.net.intf.InterfaceService;
import org.onosproject.net.config.NetworkConfigService;
import org.onosproject.net.host.HostService;
import org.onosproject.net.intent.IntentService;
import org.onosproject.routing.IntentSynchronizationService;
import org.onosproject.routing.RoutingService;
import org.onosproject.routing.SdnIpService;
import org.onosproject.routing.config.RoutingConfigurationService;
import org.slf4j.Logger;
/**
* Component for the SDN-IP peering application.
*/
@Component(immediate = true)
@Service
public class SdnIp implements SdnIpService {
private static final String SDN_IP_APP = "org.onosproject.sdnip";
private final Logger log = getLogger(getClass());
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected CoreService coreService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected IntentService intentService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected ApplicationService applicationService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected HostService hostService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected ClusterService clusterService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected LeadershipService leadershipService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected RoutingService routingService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected RoutingConfigurationService config;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected NetworkConfigService networkConfigService;
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected InterfaceService interfaceService;
private IntentSynchronizer intentSynchronizer;
private PeerConnectivityManager peerConnectivity;
private SdnIpFib fib;
private LeadershipEventListener leadershipEventListener =
new InnerLeadershipEventListener();
private ApplicationId appId;
private ControllerNode localControllerNode;
@Activate
protected void activate() {
log.info("SDN-IP started");
appId = coreService.registerApplication(SDN_IP_APP);
localControllerNode = clusterService.getLocalNode();
intentSynchronizer = new IntentSynchronizer(appId, intentService);
intentSynchronizer.start();
peerConnectivity = new PeerConnectivityManager(appId,
intentSynchronizer,
networkConfigService,
coreService.getAppId(RoutingService.ROUTER_APP_ID),
interfaceService);
peerConnectivity.start();
fib = new SdnIpFib(appId, interfaceService, intentSynchronizer);
routingService.addFibListener(fib);
routingService.start();
leadershipService.addListener(leadershipEventListener);
leadershipService.runForLeadership(appId.name());
applicationService.registerDeactivateHook(appId,
intentSynchronizer::removeIntents);
}
@Deactivate
protected void deactivate() {
routingService.stop();
peerConnectivity.stop();
intentSynchronizer.stop();
leadershipService.withdraw(appId.name());
leadershipService.removeListener(leadershipEventListener);
log.info("SDN-IP Stopped");
}
@Override
public void modifyPrimary(boolean isPrimary) {
intentSynchronizer.leaderChanged(isPrimary);
}
@Override
public IntentSynchronizationService getIntentSynchronizationService() {
return intentSynchronizer;
}
/**
* Converts DPIDs of the form xx:xx:xx:xx:xx:xx:xx to OpenFlow provider
* device URIs.
*
* @param dpid the DPID string to convert
* @return the URI string for this device
*/
static String dpidToUri(String dpid) {
return "of:" + dpid.replace(":", "");
}
/**
* A listener for Leadership Events.
*/
private class InnerLeadershipEventListener
implements LeadershipEventListener {
@Override
public void event(LeadershipEvent event) {
log.debug("Leadership Event: time = {} type = {} event = {}",
event.time(), event.type(), event);
if (!event.subject().topic().equals(appId.name())) {
return; // Not our topic: ignore
}
if (!Objects.equals(event.subject().leader(), localControllerNode.id())) {
return; // The event is not about this instance: ignore
}
switch (event.type()) {
case LEADER_ELECTED:
log.info("SDN-IP Leader Elected");
intentSynchronizer.leaderChanged(true);
break;
case LEADER_BOOTED:
log.info("SDN-IP Leader Lost Election");
intentSynchronizer.leaderChanged(false);
break;
case LEADER_REELECTED:
break;
default:
break;
}
}
}
}
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