servicehandler/src/main/java/org/opendaylight/transportpce/servicehandler/listeners/NetworkModelListenerImpl.java

   1 /*
   2  * Copyright © 2020 Nokia, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.transportpce.servicehandler.listeners;
   9
  10 import java.util.HashMap;
  11 import java.util.Iterator;
  12 import java.util.List;
  13 import java.util.Map;
  14 import java.util.Optional;
  15 import java.util.stream.Collectors;
  16 import org.eclipse.jdt.annotation.Nullable;
  17 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  18 import org.opendaylight.transportpce.common.OperationResult;
  19 import org.opendaylight.transportpce.servicehandler.service.ServiceDataStoreOperations;
  20 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.TopologyUpdateResult;
  21 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.TopologyUpdateResultBuilder;
  22 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.TransportpceNetworkmodelListener;
  23 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.topology.update.result.TopologyChanges;
  24 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.topology.update.result.TopologyChangesKey;
  25 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.state.types.rev191129.State;
  26 import org.opendaylight.yang.gen.v1.http.org.openroadm.service.rev211210.service.list.Services;
  27 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.AToZDirection;
  28 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.AToZDirectionBuilder;
  29 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.ZToADirection;
  30 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.ZToADirectionBuilder;
  31 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.atoz.direction.AToZ;
  32 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.atoz.direction.AToZBuilder;
  33 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.atoz.direction.AToZKey;
  34 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.ztoa.direction.ZToA;
  35 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.ztoa.direction.ZToABuilder;
  36 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.path.description.ztoa.direction.ZToAKey;
  37 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.pce.resource.Resource;
  38 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.pce.resource.ResourceBuilder;
  39 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev210705.pce.resource.resource.resource.TerminationPoint;
  40 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.service.path.PathDescription;
  41 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.service.path.PathDescriptionBuilder;
  42 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.servicepath.rev171017.ServicePathList;
  43 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.servicepath.rev171017.service.path.list.ServicePaths;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 public class NetworkModelListenerImpl implements TransportpceNetworkmodelListener {
  48
  49     private static final Logger LOG = LoggerFactory.getLogger(NetworkModelListenerImpl.class);
  50     private final NotificationPublishService notificationPublishService; // to be used for T-API notification
  51     private ServiceDataStoreOperations serviceDataStoreOperations;
  52     private TopologyUpdateResult topologyUpdateResult;
  53
  54     public NetworkModelListenerImpl(NotificationPublishService notificationPublishService,
  55                                     ServiceDataStoreOperations serviceDataStoreOperations) {
  56         this.notificationPublishService = notificationPublishService;
  57         this.serviceDataStoreOperations = serviceDataStoreOperations;
  58     }
  59
  60     @Override
  61     public void onTopologyUpdateResult(TopologyUpdateResult notification) {
  62         LOG.debug("Topology update notification: {}", notification);
  63         if (compareTopologyUpdateResult(notification)) {
  64             LOG.warn("TopologyUpdateResult already wired !");
  65             return;
  66         }
  67         topologyUpdateResult = new TopologyUpdateResultBuilder()
  68                 .setTopologyChanges(new HashMap<>(notification.getTopologyChanges()))
  69                 .build();
  70         // Update service datastore and service path description
  71         updateServicePaths(notification);
  72     }
  73
  74     /**
  75      * Process topology update result.
  76      * @param notification the result notification.
  77      */
  78     protected void updateServicePaths(TopologyUpdateResult notification) {
  79         @Nullable
  80         Map<TopologyChangesKey, TopologyChanges> topologyChanges = notification.getTopologyChanges();
  81         Optional<ServicePathList> servicePathListOptional = this.serviceDataStoreOperations.getServicePaths();
  82         if (servicePathListOptional.isEmpty()) {
  83             LOG.warn("Enable to retrieve service path list");
  84             return;
  85         }
  86         ServicePathList servicePathList = servicePathListOptional.get();
  87         for (ServicePaths servicePaths : servicePathList.getServicePaths().values()) {
  88             String serviceName = servicePaths.getServicePathName();
  89             PathDescription pathDescription = servicePaths.getPathDescription();
  90             // update path descriptions in the datastore
  91             Map<AToZKey, AToZ> updatedAtoZ = changePathElementStateAZ(topologyChanges, pathDescription);
  92             Map<ZToAKey, ZToA> updatedZtoA = changePathElementStateZA(topologyChanges, pathDescription);
  93             OperationResult operationResult = this.serviceDataStoreOperations
  94                     .modifyServicePath(buildNewPathDescription(pathDescription, updatedAtoZ, updatedZtoA), serviceName);
  95             if (!operationResult.isSuccess()) {
  96                 LOG.warn("Service Path not updated in datastore!");
  97                 continue;
  98             }
  99             // update service in the datastore. Only path description with all elements in service can have a service
 100             // in service. Therefore we check if all the states of the path description resources are inService
 101             Optional<Services> serviceOptional = this.serviceDataStoreOperations.getService(serviceName);
 102             if (serviceOptional.isEmpty()) {
 103                 LOG.error("Couldn't retrieve service");
 104                 continue;
 105             }
 106             Services services = serviceOptional.get();
 107             OperationResult operationResult1 = null;
 108             State newState;
 109             switch (services.getOperationalState()) {
 110                 case InService:
 111                     if (allElementsinPathinService(updatedAtoZ, updatedZtoA)) {
 112                         LOG.debug("Service {} state does not need to be modified", serviceName);
 113                         continue;
 114                     }
 115                     newState = State.OutOfService;
 116                     break;
 117                 case OutOfService:
 118                     if (!allElementsinPathinService(updatedAtoZ, updatedZtoA)) {
 119                         LOG.debug("Service {} state does not need to be modified", serviceName);
 120                         continue;
 121                     }
 122                     newState = State.InService;
 123                     break;
 124                 default:
 125                     LOG.warn("Service {} state not managed", serviceName);
 126                     continue;
 127             }
 128
 129
 130             LOG.debug("Service={} needs to be updated to {}", serviceName, newState);
 131             //if (operationResult1 != null && operationResult1.isSuccess()) {
 132             //null check probably no more needed
 133             if (this.serviceDataStoreOperations
 134                     .modifyService(serviceName, newState, services.getAdministrativeState())
 135                     .isSuccess()) {
 136                 LOG.info("Service state of {} correctly updated to {} in datastore", serviceName, newState);
 137                 continue;
 138             }
 139             LOG.error("Service state of {} cannot be updated to {} in datastore", serviceName, newState);
 140
 141         }
 142     }
 143
 144     protected Map<ZToAKey, ZToA> changePathElementStateZA(Map<TopologyChangesKey, TopologyChanges> topologyChanges,
 145         PathDescription pathDescription) {
 146         Map<ZToAKey, ZToA> newztoaMap = new HashMap<>(pathDescription.getZToADirection().getZToA());
 147         List<ZToA> tpResources = pathDescription.getZToADirection().getZToA().values().stream()
 148                 .filter(ele -> ele.getResource().getResource() instanceof TerminationPoint)
 149                 .collect(Collectors.toList());
 150         for (ZToA ztoA : tpResources) {
 151             String ztoAid = ztoA.getId();
 152             State ztoAState = ztoA.getResource().getState();
 153             TerminationPoint tp = (TerminationPoint) ztoA.getResource().getResource();
 154             if (topologyChanges.containsKey(new TopologyChangesKey(tp.getTpNodeId(), tp.getTpId()))
 155                 && !topologyChanges.get(new TopologyChangesKey(tp.getTpNodeId(), tp.getTpId())).getState()
 156                 .equals(ztoAState)) {
 157                 LOG.debug("updating ztoa tp {}", ztoA);
 158                 State updatedState = topologyChanges.get(new TopologyChangesKey(tp.getTpNodeId(), tp.getTpId()))
 159                     .getState();
 160                 Resource updatedResource = new ResourceBuilder()
 161                     .setResource(tp)
 162                     .setState(updatedState)
 163                     .build();
 164                 ZToA updatedZToA = new ZToABuilder(ztoA)
 165                     .setId(ztoAid)
 166                     .setResource(updatedResource)
 167                     .build();
 168                 newztoaMap.put(updatedZToA.key(), updatedZToA);
 169             }
 170         }
 171         return newztoaMap;
 172     }
 173
 174     protected Map<AToZKey, AToZ> changePathElementStateAZ(Map<TopologyChangesKey,
 175             TopologyChanges> topologyChanges, PathDescription pathDescription) {
 176
 177         Map<AToZKey, AToZ> newatozMap = new HashMap<>(pathDescription.getAToZDirection().getAToZ());
 178         List<AToZ> tpResources = pathDescription.getAToZDirection().getAToZ().values().stream()
 179             .filter(ele -> ele.getResource().getResource() instanceof TerminationPoint)
 180             .collect(Collectors.toList());
 181         for (AToZ atoZ : tpResources) {
 182             String atoZid = atoZ.getId();
 183             State atoZState = atoZ.getResource().getState();
 184             TerminationPoint tp = (TerminationPoint) atoZ.getResource().getResource();
 185             if (topologyChanges.containsKey(new TopologyChangesKey(tp.getTpNodeId(), tp.getTpId()))
 186                 && !topologyChanges.get(new TopologyChangesKey(tp.getTpNodeId(), tp.getTpId())).getState()
 187                 .equals(atoZState)) {
 188                 LOG.debug("updating atoz tp {}", atoZ);
 189                 State updatedState = topologyChanges.get(new TopologyChangesKey(tp.getTpNodeId(), tp.getTpId()))
 190                     .getState();
 191                 Resource updatedResource = new ResourceBuilder()
 192                     .setResource(tp)
 193                     .setState(updatedState)
 194                     .build();
 195                 AToZ updatedAToZ = new AToZBuilder(atoZ)
 196                     .setId(atoZid)
 197                     .setResource(updatedResource)
 198                     .build();
 199                 newatozMap.put(updatedAToZ.key(), updatedAToZ);
 200             }
 201         }
 202         return newatozMap;
 203     }
 204
 205     private PathDescription buildNewPathDescription(PathDescription pathDescription, Map<AToZKey, AToZ> updatedAtoZ,
 206                                                     Map<ZToAKey, ZToA> updatedZtoA) {
 207         AToZDirection atozDir = new AToZDirectionBuilder(pathDescription.getAToZDirection())
 208                 .setAToZ(updatedAtoZ)
 209                 .build();
 210         ZToADirection ztoaDir = new ZToADirectionBuilder(pathDescription.getZToADirection())
 211                 .setZToA(updatedZtoA)
 212                 .build();
 213         return new PathDescriptionBuilder()
 214             .setAToZDirection(atozDir)
 215             .setZToADirection(ztoaDir)
 216             .build();
 217     }
 218
 219     protected boolean allElementsinPathinService(Map<AToZKey, AToZ> updatedAtoZ, Map<ZToAKey, ZToA> updatedZtoA) {
 220         boolean allEleminService = true;
 221         Iterator<AToZ> i1 = updatedAtoZ.values().iterator();
 222         Iterator<ZToA> i2 = updatedZtoA.values().iterator();
 223         // TODO: both directions have same length?
 224         while (i1.hasNext() && i2.hasNext()) {
 225             if (State.OutOfService.getIntValue() == i1.next().getResource().getState().getIntValue()
 226                     || State.OutOfService.getIntValue() == i2.next().getResource().getState().getIntValue()) {
 227                 allEleminService = false;
 228                 break;
 229             }
 230         }
 231
 232         return allEleminService;
 233     }
 234
 235     private boolean compareTopologyUpdateResult(TopologyUpdateResult notification) {
 236         return topologyUpdateResult != null
 237                 && topologyUpdateResult.getTopologyChanges().equals(notification.getTopologyChanges());
 238     }
 239
 240     public void setserviceDataStoreOperations(ServiceDataStoreOperations serviceData) {
 241         this.serviceDataStoreOperations = serviceData;
 242     }
 243 }