| /* |
| * 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.optical; |
| |
| import com.google.common.collect.Lists; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.mastership.MastershipService; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.Host; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.Path; |
| import org.onosproject.net.host.HostService; |
| import org.onosproject.net.intent.HostToHostIntent; |
| import org.onosproject.net.intent.Intent; |
| import org.onosproject.net.intent.IntentEvent; |
| import org.onosproject.net.intent.IntentListener; |
| import org.onosproject.net.intent.IntentService; |
| import org.onosproject.net.intent.IntentState; |
| import org.onosproject.net.intent.OpticalConnectivityIntent; |
| import org.onosproject.net.intent.PointToPointIntent; |
| import org.onosproject.net.topology.LinkWeight; |
| import org.onosproject.net.topology.PathService; |
| import org.onosproject.net.topology.TopologyEdge; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import static org.onosproject.net.intent.IntentState.INSTALLED; |
| |
| /** |
| * OpticalPathProvisioner listens event notifications from the Intent F/W. |
| * It generates one or more opticalConnectivityIntent(s) and submits (or withdraws) to Intent F/W |
| * for adding/releasing capacity at the packet layer. |
| * |
| */ |
| |
| @Component(immediate = true) |
| public class OpticalPathProvisioner { |
| |
| protected static final Logger log = LoggerFactory |
| .getLogger(OpticalPathProvisioner.class); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private IntentService intentService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected PathService pathService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected HostService hostService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected MastershipService mastershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ClusterService clusterService; |
| |
| private ApplicationId appId; |
| |
| // TODO use a shared map for distributed operation |
| protected final Map<ConnectPoint, OpticalConnectivityIntent> inStatusTportMap = |
| new ConcurrentHashMap<>(); |
| protected final Map<ConnectPoint, OpticalConnectivityIntent> outStatusTportMap = |
| new ConcurrentHashMap<>(); |
| |
| protected final Map<ConnectPoint, Map<ConnectPoint, Intent>> intentMap = |
| new ConcurrentHashMap<>(); |
| |
| private final InternalOpticalPathProvisioner pathProvisioner = new InternalOpticalPathProvisioner(); |
| |
| @Activate |
| protected void activate() { |
| intentService.addListener(pathProvisioner); |
| appId = coreService.registerApplication("org.onosproject.optical"); |
| initTport(); |
| log.info("Starting optical path provisioning..."); |
| } |
| |
| protected void initTport() { |
| inStatusTportMap.clear(); |
| outStatusTportMap.clear(); |
| for (Intent intent : intentService.getIntents()) { |
| if (intentService.getIntentState(intent.key()) == INSTALLED) { |
| if (intent instanceof OpticalConnectivityIntent) { |
| inStatusTportMap.put(((OpticalConnectivityIntent) intent).getSrc(), |
| (OpticalConnectivityIntent) intent); |
| outStatusTportMap.put(((OpticalConnectivityIntent) intent).getDst(), |
| (OpticalConnectivityIntent) intent); |
| } |
| } |
| } |
| } |
| |
| protected void deactivate() { |
| intentService.removeListener(pathProvisioner); |
| } |
| |
| public class InternalOpticalPathProvisioner implements IntentListener { |
| @Override |
| public void event(IntentEvent event) { |
| switch (event.type()) { |
| case INSTALL_REQ: |
| break; |
| case INSTALLED: |
| break; |
| case FAILED: |
| log.info("packet intent {} failed, calling optical path provisioning APP.", event.subject()); |
| setupLightpath(event.subject()); |
| break; |
| case WITHDRAWN: |
| log.info("intent {} withdrawn.", event.subject()); |
| //FIXME |
| //teardownLightpath(event.subject()); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void reserveTport(Intent intent) { |
| // TODO move to resourceManager |
| if (intent instanceof OpticalConnectivityIntent) { |
| OpticalConnectivityIntent opticalIntent = |
| (OpticalConnectivityIntent) intent; |
| if (inStatusTportMap.containsKey(opticalIntent.getSrc()) || |
| outStatusTportMap.containsKey(opticalIntent.getDst())) { |
| //TODO throw an exception, perhaps |
| log.warn("Overlapping reservation: {}", opticalIntent); |
| } |
| inStatusTportMap.put(opticalIntent.getSrc(), opticalIntent); |
| outStatusTportMap.put(opticalIntent.getDst(), opticalIntent); |
| } |
| } |
| |
| /** |
| * Registers an intent from src to dst. |
| * @param src source point |
| * @param dst destination point |
| * @param intent intent to be registered |
| * @return true if intent has not been previously added, false otherwise |
| */ |
| private boolean addIntent(ConnectPoint src, ConnectPoint dst, Intent intent) { |
| Map<ConnectPoint, Intent> srcMap = intentMap.get(src); |
| if (srcMap == null) { |
| srcMap = new ConcurrentHashMap<>(); |
| intentMap.put(src, srcMap); |
| } |
| if (srcMap.containsKey(dst)) { |
| return false; |
| } else { |
| srcMap.put(dst, intent); |
| return true; |
| } |
| } |
| |
| private void setupLightpath(Intent intent) { |
| // TODO change the coordination approach between packet intents and optical intents |
| // Low speed LLDP may cause multiple calls which are not expected |
| |
| if (!IntentState.FAILED.equals(intentService.getIntentState(intent.key()))) { |
| return; |
| } |
| |
| NodeId localNode = clusterService.getLocalNode().id(); |
| |
| List<Intent> intents = Lists.newArrayList(); |
| if (intent instanceof HostToHostIntent) { |
| HostToHostIntent hostToHostIntent = (HostToHostIntent) intent; |
| |
| Host one = hostService.getHost(hostToHostIntent.one()); |
| Host two = hostService.getHost(hostToHostIntent.two()); |
| if (one == null || two == null) { |
| return; //FIXME |
| } |
| |
| // Ignore if we're not the master for the intent's origin device |
| NodeId sourceMaster = mastershipService.getMasterFor(one.location().deviceId()); |
| if (!localNode.equals(sourceMaster)) { |
| return; |
| } |
| |
| // provision both directions |
| intents.addAll(getOpticalPath(one.location(), two.location())); |
| // note: bi-directional intent is set up |
| // HostToHost Intent requires symmetric path! |
| //intents.addAll(getOpticalPath(two.location(), one.location())); |
| } else if (intent instanceof PointToPointIntent) { |
| PointToPointIntent p2pIntent = (PointToPointIntent) intent; |
| |
| // Ignore if we're not the master for the intent's origin device |
| NodeId sourceMaster = mastershipService.getMasterFor(p2pIntent.ingressPoint().deviceId()); |
| if (!localNode.equals(sourceMaster)) { |
| return; |
| } |
| |
| intents.addAll(getOpticalPath(p2pIntent.ingressPoint(), p2pIntent.egressPoint())); |
| } else { |
| log.info("Unsupported intent type: {}", intent.getClass()); |
| } |
| |
| // Create the intents |
| for (Intent i : intents) { |
| // TODO: don't allow duplicate intents between the same points for now |
| // we may want to allow this carefully in future to increase capacity |
| if (i instanceof OpticalConnectivityIntent) { |
| OpticalConnectivityIntent oi = (OpticalConnectivityIntent) i; |
| if (addIntent(oi.getSrc(), oi.getDst(), oi)) { |
| intentService.submit(i); |
| reserveTport(i); |
| } |
| } else { |
| log.warn("Invalid intent type: {} for {}", i.getClass(), i); |
| } |
| } |
| } |
| |
| private List<Intent> getOpticalPath(ConnectPoint ingress, ConnectPoint egress) { |
| Set<Path> paths = pathService.getPaths(ingress.deviceId(), |
| egress.deviceId(), |
| new OpticalLinkWeight()); |
| |
| if (paths.isEmpty()) { |
| return Lists.newArrayList(); |
| } |
| |
| List<Intent> connectionList = Lists.newArrayList(); |
| |
| Iterator<Path> itrPath = paths.iterator(); |
| while (itrPath.hasNext()) { |
| boolean usedTportFound = false; |
| Path nextPath = itrPath.next(); |
| log.info(nextPath.links().toString()); // TODO drop log level |
| |
| Iterator<Link> itrLink = nextPath.links().iterator(); |
| while (itrLink.hasNext()) { |
| ConnectPoint srcWdmPoint, dstWdmPoint; |
| Link link1 = itrLink.next(); |
| if (!isOpticalLink(link1)) { |
| continue; |
| } else { |
| srcWdmPoint = link1.dst(); |
| dstWdmPoint = srcWdmPoint; |
| } |
| |
| while (itrLink.hasNext()) { |
| Link link2 = itrLink.next(); |
| if (isOpticalLink(link2)) { |
| dstWdmPoint = link2.src(); |
| } else { |
| break; |
| } |
| } |
| |
| if (inStatusTportMap.get(srcWdmPoint) != null || |
| outStatusTportMap.get(dstWdmPoint) != null) { |
| usedTportFound = true; |
| // log.info("used ConnectPoint {} to {} were found", srcWdmPoint, dstWdmPoint); |
| break; |
| } |
| |
| Intent opticalIntent = OpticalConnectivityIntent.builder() |
| .appId(appId) |
| .src(srcWdmPoint) |
| .dst(dstWdmPoint) |
| .build(); |
| Intent opticalIntent2 = OpticalConnectivityIntent.builder() |
| .appId(appId) |
| .src(dstWdmPoint) |
| .dst(srcWdmPoint) |
| .build(); |
| log.info("Creating optical intent from {} to {}", srcWdmPoint, dstWdmPoint); |
| log.info("Creating optical intent from {} to {}", dstWdmPoint, srcWdmPoint); |
| connectionList.add(opticalIntent); |
| connectionList.add(opticalIntent2); |
| |
| break; |
| } |
| |
| if (!usedTportFound) { |
| break; |
| } else { |
| // reset the connection list |
| connectionList = Lists.newArrayList(); |
| } |
| |
| } |
| |
| return connectionList; |
| } |
| |
| private void teardownLightpath(Intent intent) { |
| /* FIXME this command doesn't make much sense. we need to define the semantics |
| // TODO move to resourceManager |
| if (intent instanceof OpticalConnectivityIntent) { |
| inStatusTportMap.remove(((OpticalConnectivityIntent) intent).getSrc()); |
| outStatusTportMap.remove(((OpticalConnectivityIntent) intent).getDst()); |
| // TODO tear down the idle lightpath if the utilization is zero. |
| |
| } |
| */ //end-FIXME |
| } |
| |
| } |
| |
| private static boolean isOpticalLink(Link link) { |
| boolean isOptical = false; |
| Link.Type lt = link.type(); |
| if (lt == Link.Type.OPTICAL) { |
| isOptical = true; |
| } |
| return isOptical; |
| } |
| |
| private static class OpticalLinkWeight implements LinkWeight { |
| @Override |
| public double weight(TopologyEdge edge) { |
| if (edge.link().state() == Link.State.INACTIVE) { |
| return -1; // ignore inactive links |
| } |
| if (isOpticalLink(edge.link())) { |
| return 1000; // optical links |
| } else { |
| return 1; // packet links |
| } |
| } |
| } |
| |
| } |