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

   1 /*
   2  * Copyright © 2017 Orange, 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 edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  11 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  12 import org.opendaylight.transportpce.common.OperationResult;
  13 import org.opendaylight.transportpce.pce.service.PathComputationService;
  14 import org.opendaylight.transportpce.renderer.provisiondevice.RendererServiceOperations;
  15 import org.opendaylight.transportpce.servicehandler.ModelMappingUtils;
  16 import org.opendaylight.transportpce.servicehandler.ServiceInput;
  17 import org.opendaylight.transportpce.servicehandler.service.PCEServiceWrapper;
  18 import org.opendaylight.transportpce.servicehandler.service.ServiceDataStoreOperations;
  19 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.PathComputationRequestOutputBuilder;
  20 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.ServicePathRpcResult;
  21 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.TransportpcePceListener;
  22 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.service.path.rpc.result.PathDescription;
  23 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev220808.service.path.rpc.result.PathDescriptionBuilder;
  24 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.renderer.rev210915.ServiceImplementationRequestInput;
  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.service.types.rev220118.RpcStatusEx;
  28 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev220118.response.parameters.sp.ResponseParametersBuilder;
  29 import org.opendaylight.yang.gen.v1.nbi.notifications.rev211013.PublishNotificationProcessService;
  30 import org.opendaylight.yang.gen.v1.nbi.notifications.rev211013.PublishNotificationProcessServiceBuilder;
  31 import org.opendaylight.yang.gen.v1.nbi.notifications.rev211013.notification.process.service.ServiceAEndBuilder;
  32 import org.opendaylight.yang.gen.v1.nbi.notifications.rev211013.notification.process.service.ServiceZEndBuilder;
  33 import org.osgi.service.component.annotations.Activate;
  34 import org.osgi.service.component.annotations.Component;
  35 import org.osgi.service.component.annotations.Reference;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 @Component
  40 public class PceListenerImpl implements TransportpcePceListener, PceListener {
  41
  42     private static final Logger LOG = LoggerFactory.getLogger(PceListenerImpl.class);
  43     private static final String PUBLISHER = "PceListener";
  44
  45     private ServicePathRpcResult servicePathRpcResult;
  46     private RendererServiceOperations rendererServiceOperations;
  47     private ServiceDataStoreOperations serviceDataStoreOperations;
  48     private PCEServiceWrapper pceServiceWrapper;
  49     private ServiceInput input;
  50     private Boolean serviceReconfigure;
  51     private Boolean tempService;
  52     private Boolean serviceFeasiblity;
  53     private NotificationPublishService notificationPublishService;
  54
  55     @Activate
  56     public PceListenerImpl(
  57             @Reference RendererServiceOperations rendererServiceOperations,
  58             @Reference PathComputationService pathComputationService,
  59             @Reference NotificationPublishService notificationPublishService,
  60             @Reference ServiceDataStoreOperations serviceDataStoreOperations) {
  61         this.rendererServiceOperations = rendererServiceOperations;
  62         this.pceServiceWrapper = new PCEServiceWrapper(pathComputationService, notificationPublishService);
  63         this.serviceDataStoreOperations = serviceDataStoreOperations;
  64         setServiceReconfigure(false);
  65         setInput(null);
  66         setTempService(false);
  67         setServiceFeasiblity(false);
  68         this.notificationPublishService = notificationPublishService;
  69     }
  70
  71     @Override
  72     public void onServicePathRpcResult(ServicePathRpcResult notification) {
  73         if (compareServicePathRpcResult(notification)) {
  74             LOG.warn("ServicePathRpcResult already wired !");
  75             return;
  76         }
  77         servicePathRpcResult = notification;
  78         switch (servicePathRpcResult.getNotificationType().getIntValue()) {
  79             /* path-computation-request. */
  80             case 1:
  81                 onPathComputationResult(notification);
  82                 break;
  83             /* cancel-resource-reserve. */
  84             case 2:
  85                 onCancelResourceResult();
  86                 break;
  87             default:
  88                 break;
  89         }
  90     }
  91
  92     /**
  93      * Process path computation request result.
  94      * @param notification the result notification.
  95      */
  96     private void onPathComputationResult(ServicePathRpcResult notification) {
  97         LOG.info("PCE '{}' Notification received : {}", servicePathRpcResult.getNotificationType().getName(),
  98                 notification);
  99
 100         if (!checkStatus(notification)) {
 101             return;
 102         }
 103         if (servicePathRpcResult.getPathDescription() == null) {
 104             LOG.error("'PathDescription' parameter is null ");
 105             return;
 106         }
 107         PathDescription pathDescription =
 108             new PathDescriptionBuilder()
 109                 .setAToZDirection(servicePathRpcResult.getPathDescription().getAToZDirection())
 110                 .setZToADirection(servicePathRpcResult.getPathDescription().getZToADirection())
 111                 .build();
 112         LOG.info("PathDescription gets : {}", pathDescription);
 113         if (serviceFeasiblity) {
 114             LOG.warn("service-feasibility-check RPC ");
 115             return;
 116         }
 117         if (input == null) {
 118             LOG.error("Input is null !");
 119             return;
 120         }
 121         OperationResult operationResult = null;
 122         if (tempService) {
 123             operationResult =
 124                     this.serviceDataStoreOperations.createTempService(
 125                             input.getTempServiceCreateInput(), pathDescription);
 126             if (!operationResult.isSuccess()) {
 127                 LOG.error("Temp Service not created in datastore !");
 128             }
 129         } else {
 130             operationResult = this.serviceDataStoreOperations.createService(input.getServiceCreateInput());
 131             if (!operationResult.isSuccess()) {
 132                 LOG.error("Service not created in datastore !");
 133             }
 134         }
 135         if (!this.serviceDataStoreOperations
 136                 .createServicePath(
 137                     input,
 138                     //pceResponse
 139                     new PathComputationRequestOutputBuilder()
 140                         .setResponseParameters(
 141                             new ResponseParametersBuilder()
 142                                 .setPathDescription(
 143                                     new org.opendaylight.yang.gen.v1
 144                                             .http.org.transportpce.b.c._interface.service.types.rev220118
 145                                                 .response.parameters.sp.response.parameters
 146                                                     .PathDescriptionBuilder(pathDescription)
 147                                         .build())
 148                                 .build())
 149                         .build())
 150                 .isSuccess()) {
 151             LOG.error("Service Path not created in datastore !");
 152         }
 153         ServiceImplementationRequestInput serviceImplementationRequest =
 154             ModelMappingUtils.createServiceImplementationRequest(input, pathDescription);
 155         LOG.info("Sending serviceImplementation request : {}", serviceImplementationRequest);
 156         this.rendererServiceOperations.serviceImplementation(serviceImplementationRequest);
 157     }
 158
 159     /**
 160      * Check status of notification and send nbi notification.
 161      * @param notification ServicePathRpcResult the notification to check.
 162      * @return true is status is Successful, false otherwise.
 163      */
 164     private boolean checkStatus(ServicePathRpcResult notification) {
 165         PublishNotificationProcessService nbiNotification = getPublishNotificationProcessService(notification);
 166         PublishNotificationProcessServiceBuilder publishNotificationProcessServiceBuilder =
 167                 new PublishNotificationProcessServiceBuilder(nbiNotification);
 168         //TODO is it worth to instantiate the 2 variables above if status is 'Pending' or 'Successful' ?
 169         switch (servicePathRpcResult.getStatus()) {
 170             case Failed:
 171                 LOG.error("PCE path computation failed !");
 172                 nbiNotification = publishNotificationProcessServiceBuilder
 173                         .setMessage("ServiceCreate request failed ...")
 174                         .setResponseFailed("PCE path computation failed !")
 175                         .setOperationalState(State.Degraded).build();
 176                 sendNbiNotification(nbiNotification);
 177                 return false;
 178             case Pending:
 179                 LOG.warn("PCE path computation returned a Pending RpcStatusEx code!");
 180                 return false;
 181             case Successful:
 182                 LOG.info("PCE calculation done OK !");
 183                 return true;
 184             default:
 185                 LOG.error("PCE path computation returned an unknown RpcStatusEx code {}",
 186                         servicePathRpcResult.getStatus());
 187                 nbiNotification = publishNotificationProcessServiceBuilder
 188                         .setMessage("ServiceCreate request failed ...")
 189                         .setResponseFailed("PCE path computation returned an unknown RpcStatusEx code!")
 190                         .setOperationalState(State.Degraded).build();
 191                 sendNbiNotification(nbiNotification);
 192                 return false;
 193         }
 194     }
 195
 196     private PublishNotificationProcessService getPublishNotificationProcessService(ServicePathRpcResult notification) {
 197         if (input == null) {
 198             return new PublishNotificationProcessServiceBuilder()
 199                 .setServiceName(notification.getServiceName())
 200                 .setPublisherName(PUBLISHER)
 201                 .build();
 202         }
 203         return new PublishNotificationProcessServiceBuilder()
 204             .setServiceName(input.getServiceName())
 205             .setServiceAEnd(new ServiceAEndBuilder(input.getServiceAEnd()).build())
 206             .setServiceZEnd(new ServiceZEndBuilder(input.getServiceZEnd()).build())
 207             .setCommonId(input.getCommonId())
 208             .setConnectionType(input.getConnectionType())
 209             .setPublisherName(PUBLISHER)
 210             .build();
 211     }
 212
 213     /**
 214      * Process cancel resource result.
 215      */
 216     private void onCancelResourceResult() {
 217         if (servicePathRpcResult.getStatus() == RpcStatusEx.Pending) {
 218             LOG.warn("PCE cancel returned a Pending RpcStatusEx code !");
 219             return;
 220         } else if (servicePathRpcResult.getStatus() != RpcStatusEx.Successful
 221                 && servicePathRpcResult.getStatus() != RpcStatusEx.Failed) {
 222             LOG.error("PCE cancel returned an unknown RpcStatusEx code !");
 223             return;
 224         }
 225         Services service = serviceDataStoreOperations.getService(input.getServiceName()).orElseThrow();
 226         PublishNotificationProcessServiceBuilder nbiNotificationBuilder =
 227             new PublishNotificationProcessServiceBuilder()
 228                 .setServiceName(service.getServiceName())
 229                 .setServiceAEnd(new ServiceAEndBuilder(service.getServiceAEnd()).build())
 230                 .setServiceZEnd(new ServiceZEndBuilder(service.getServiceZEnd()).build())
 231                 .setCommonId(service.getCommonId())
 232                 .setConnectionType(service.getConnectionType())
 233                 .setPublisherName(PUBLISHER);
 234         if (servicePathRpcResult.getStatus() == RpcStatusEx.Failed) {
 235             LOG.info("PCE cancel resource failed !");
 236             sendNbiNotification(
 237                 nbiNotificationBuilder
 238                     .setResponseFailed("PCE cancel resource failed !")
 239                     .setMessage("ServiceDelete request failed ...")
 240                     .setOperationalState(service.getOperationalState())
 241                     .build());
 242             return;
 243         }
 244         LOG.info("PCE cancel resource done OK !");
 245         OperationResult deleteServicePathOperationResult =
 246                 this.serviceDataStoreOperations.deleteServicePath(input.getServiceName());
 247         if (!deleteServicePathOperationResult.isSuccess()) {
 248             LOG.warn("Service path was not removed from datastore !");
 249         }
 250         OperationResult deleteServiceOperationResult;
 251         String serviceType = "";
 252         if (tempService) {
 253             deleteServiceOperationResult = this.serviceDataStoreOperations.deleteTempService(input.getServiceName());
 254             serviceType = "Temp ";
 255         } else {
 256             deleteServiceOperationResult = this.serviceDataStoreOperations.deleteService(input.getServiceName());
 257         }
 258         if (deleteServiceOperationResult.isSuccess()) {
 259             sendNbiNotification(
 260                 nbiNotificationBuilder
 261                     .setResponseFailed("")
 262                     .setMessage("Service deleted !")
 263                     .setOperationalState(State.Degraded)
 264                     .build());
 265         } else {
 266             LOG.warn("{}Service was not removed from datastore !", serviceType);
 267             sendNbiNotification(
 268                 nbiNotificationBuilder
 269                     .setResponseFailed(serviceType + "Service was not removed from datastore !")
 270                     .setMessage("ServiceDelete request failed ...")
 271                     .setOperationalState(service.getOperationalState())
 272                     .build());
 273         }
 274         /**
 275          * if it was an RPC serviceReconfigure, re-launch PCR.
 276          */
 277         if (this.serviceReconfigure) {
 278             LOG.info("cancel resource reserve done, relaunching PCE path computation ...");
 279             this.pceServiceWrapper.performPCE(input.getServiceCreateInput(), true);
 280             this.serviceReconfigure = false;
 281         }
 282     }
 283
 284     @SuppressFBWarnings(
 285         value = "ES_COMPARING_STRINGS_WITH_EQ",
 286         justification = "false positives, not strings but real object references comparisons")
 287     private Boolean compareServicePathRpcResult(ServicePathRpcResult notification) {
 288         if (servicePathRpcResult == null) {
 289             return false;
 290         }
 291         if (servicePathRpcResult.getNotificationType() != notification.getNotificationType()) {
 292             return false;
 293         }
 294         if (servicePathRpcResult.getServiceName() != notification.getServiceName()) {
 295             return false;
 296         }
 297         if (servicePathRpcResult.getStatus() != notification.getStatus()) {
 298             return false;
 299         }
 300         if (servicePathRpcResult.getStatusMessage() != notification.getStatusMessage()) {
 301             return false;
 302         }
 303         return true;
 304     }
 305
 306     @Override
 307     public void setInput(ServiceInput serviceInput) {
 308         this.input = serviceInput;
 309     }
 310
 311     @Override
 312     public void setServiceReconfigure(Boolean serv) {
 313         this.serviceReconfigure = serv;
 314     }
 315
 316     @Override
 317     public void setserviceDataStoreOperations(ServiceDataStoreOperations serviceData) {
 318         this.serviceDataStoreOperations = serviceData;
 319     }
 320
 321     @Override
 322     public void setTempService(Boolean tempService) {
 323         this.tempService = tempService;
 324     }
 325
 326     @Override
 327     public void setServiceFeasiblity(Boolean serviceFeasiblity) {
 328         this.serviceFeasiblity = serviceFeasiblity;
 329     }
 330
 331     /**
 332      * Send notification to NBI notification in order to publish message.
 333      * @param service PublishNotificationService
 334      */
 335     private void sendNbiNotification(PublishNotificationProcessService service) {
 336         try {
 337             notificationPublishService.putNotification(service);
 338         } catch (InterruptedException e) {
 339             LOG.warn("Cannot send notification to nbi", e);
 340             Thread.currentThread().interrupt();
 341         }
 342     }
 343 }