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.rev200128.PathComputationRequestOutput;
  20 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev200128.PathComputationRequestOutputBuilder;
  21 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev200128.ServicePathRpcResult;
  22 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev200128.TransportpcePceListener;
  23 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev200128.service.path.rpc.result.PathDescription;
  24 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev200128.service.path.rpc.result.PathDescriptionBuilder;
  25 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.renderer.rev201125.ServiceImplementationRequestInput;
  26 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.state.types.rev181130.State;
  27 import org.opendaylight.yang.gen.v1.http.org.openroadm.service.rev190531.service.list.Services;
  28 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev200128.RpcStatusEx;
  29 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev200128.response.parameters.sp.ResponseParameters;
  30 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev200128.response.parameters.sp.ResponseParametersBuilder;
  31 import org.opendaylight.yang.gen.v1.nbi.notifications.rev201130.PublishNotificationService;
  32 import org.opendaylight.yang.gen.v1.nbi.notifications.rev201130.PublishNotificationServiceBuilder;
  33 import org.opendaylight.yang.gen.v1.nbi.notifications.rev201130.notification.service.ServiceAEndBuilder;
  34 import org.opendaylight.yang.gen.v1.nbi.notifications.rev201130.notification.service.ServiceZEndBuilder;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 public class PceListenerImpl implements TransportpcePceListener {
  39
  40     private static final Logger LOG = LoggerFactory.getLogger(PceListenerImpl.class);
  41     private static final String TOPIC = "PceListener";
  42
  43     private ServicePathRpcResult servicePathRpcResult;
  44     private RendererServiceOperations rendererServiceOperations;
  45     private ServiceDataStoreOperations serviceDataStoreOperations;
  46     private PCEServiceWrapper pceServiceWrapper;
  47     private ServiceInput input;
  48     private Boolean serviceReconfigure;
  49     private Boolean tempService;
  50     private Boolean serviceFeasiblity;
  51     private NotificationPublishService notificationPublishService;
  52
  53     public PceListenerImpl(RendererServiceOperations rendererServiceOperations,
  54             PathComputationService pathComputationService, NotificationPublishService notificationPublishService,
  55             ServiceDataStoreOperations serviceDataStoreOperations) {
  56         this.rendererServiceOperations = rendererServiceOperations;
  57         this.pceServiceWrapper = new PCEServiceWrapper(pathComputationService, notificationPublishService);
  58         this.serviceDataStoreOperations = serviceDataStoreOperations;
  59         setServiceReconfigure(false);
  60         setInput(null);
  61         setTempService(false);
  62         setServiceFeasiblity(false);
  63         this.notificationPublishService = notificationPublishService;
  64     }
  65
  66     @Override
  67     public void onServicePathRpcResult(ServicePathRpcResult notification) {
  68         if (compareServicePathRpcResult(notification)) {
  69             LOG.warn("ServicePathRpcResult already wired !");
  70             return;
  71         }
  72         servicePathRpcResult = notification;
  73         switch (servicePathRpcResult.getNotificationType().getIntValue()) {
  74             /* path-computation-request. */
  75             case 1:
  76                 onPathComputationResult(notification);
  77                 break;
  78             /* cancel-resource-reserve. */
  79             case 2:
  80                 onCancelResourceResult();
  81                 break;
  82             default:
  83                 break;
  84         }
  85     }
  86
  87     /**
  88      * Process path computation request result.
  89      * @param notification the result notification.
  90      */
  91     private void onPathComputationResult(ServicePathRpcResult notification) {
  92         LOG.info("PCE '{}' Notification received : {}", servicePathRpcResult.getNotificationType().getName(),
  93                 notification);
  94         if (!checkStatus(notification)) {
  95             return;
  96         }
  97         if (servicePathRpcResult.getPathDescription() == null) {
  98             LOG.error("'PathDescription' parameter is null ");
  99             return;
 100         }
 101         PathDescription pathDescription = new PathDescriptionBuilder()
 102                 .setAToZDirection(servicePathRpcResult.getPathDescription().getAToZDirection())
 103                 .setZToADirection(servicePathRpcResult.getPathDescription().getZToADirection())
 104                 .build();
 105         LOG.info("PathDescription gets : {}", pathDescription);
 106         if (serviceFeasiblity) {
 107             LOG.warn("service-feasibility-check RPC ");
 108             return;
 109         }
 110         if (input == null) {
 111             LOG.error("Input is null !");
 112             return;
 113         }
 114         OperationResult operationResult = null;
 115         if (tempService) {
 116             operationResult = this.serviceDataStoreOperations.createTempService(input.getTempServiceCreateInput());
 117             if (!operationResult.isSuccess()) {
 118                 LOG.error("Temp Service not created in datastore !");
 119             }
 120         } else {
 121             operationResult = this.serviceDataStoreOperations.createService(input.getServiceCreateInput());
 122             if (!operationResult.isSuccess()) {
 123                 LOG.error("Service not created in datastore !");
 124             }
 125         }
 126         ResponseParameters responseParameters = new ResponseParametersBuilder()
 127                 .setPathDescription(new org.opendaylight.yang.gen.v1.http
 128                         .org.transportpce.b.c._interface.service.types.rev200128
 129                         .response.parameters.sp.response.parameters.PathDescriptionBuilder(pathDescription).build())
 130                 .build();
 131         PathComputationRequestOutput pceResponse = new PathComputationRequestOutputBuilder()
 132                 .setResponseParameters(responseParameters).build();
 133         OperationResult operationServicePathSaveResult = this.serviceDataStoreOperations
 134                 .createServicePath(input, pceResponse);
 135         if (!operationServicePathSaveResult.isSuccess()) {
 136             LOG.error("Service Path not created in datastore !");
 137         }
 138         ServiceImplementationRequestInput serviceImplementationRequest = ModelMappingUtils
 139                 .createServiceImplementationRequest(input, pathDescription);
 140         LOG.info("Sending serviceImplementation request : {}", serviceImplementationRequest);
 141         this.rendererServiceOperations.serviceImplementation(serviceImplementationRequest);
 142     }
 143
 144     /**
 145      * Check status of notification and send nbi notification.
 146      * @param notification ServicePathRpcResult the notification to check.
 147      * @return true is status is Successful, false otherwise.
 148      */
 149     private boolean checkStatus(ServicePathRpcResult notification) {
 150         PublishNotificationService nbiNotification = getPublishNotificationService(notification);
 151         PublishNotificationServiceBuilder publishNotificationServiceBuilder = new PublishNotificationServiceBuilder(
 152                 nbiNotification);
 153         switch (servicePathRpcResult.getStatus()) {
 154             case Failed:
 155                 LOG.error("PCE path computation failed !");
 156                 nbiNotification = publishNotificationServiceBuilder.setMessage("ServiceCreate request failed ...")
 157                         .setResponseFailed("PCE path computation failed !")
 158                         .setOperationalState(State.Degraded).build();
 159                 sendNbiNotification(nbiNotification);
 160                 return false;
 161             case Pending:
 162                 LOG.warn("PCE path computation returned a Pending RpcStatusEx code!");
 163                 return false;
 164             case Successful:
 165                 LOG.info("PCE calculation done OK !");
 166                 return true;
 167             default:
 168                 LOG.error("PCE path computation returned an unknown RpcStatusEx code {}",
 169                         servicePathRpcResult.getStatus());
 170                 nbiNotification = publishNotificationServiceBuilder.setMessage("ServiceCreate request failed ...")
 171                         .setResponseFailed("PCE path computation returned an unknown RpcStatusEx code!")
 172                         .setOperationalState(State.Degraded).build();
 173                 sendNbiNotification(nbiNotification);
 174                 return false;
 175         }
 176     }
 177
 178     private PublishNotificationService getPublishNotificationService(ServicePathRpcResult notification) {
 179         PublishNotificationServiceBuilder nbiNotificationBuilder = new PublishNotificationServiceBuilder();
 180         if (input != null) {
 181             nbiNotificationBuilder.setServiceName(input.getServiceName())
 182                     .setServiceAEnd(new ServiceAEndBuilder(input.getServiceAEnd()).build())
 183                     .setServiceZEnd(new ServiceZEndBuilder(input.getServiceZEnd()).build())
 184                     .setCommonId(input.getCommonId()).setConnectionType(input.getConnectionType());
 185         } else {
 186             nbiNotificationBuilder.setServiceName(notification.getServiceName());
 187         }
 188         nbiNotificationBuilder.setTopic(TOPIC);
 189         return nbiNotificationBuilder.build();
 190     }
 191
 192     /**
 193      * Process cancel resource result.
 194      */
 195     private void onCancelResourceResult() {
 196         if (servicePathRpcResult.getStatus() == RpcStatusEx.Pending) {
 197             LOG.warn("PCE cancel returned a Pending RpcStatusEx code !");
 198             return;
 199         } else if (servicePathRpcResult.getStatus() != RpcStatusEx.Successful
 200                 && servicePathRpcResult.getStatus() != RpcStatusEx.Failed) {
 201             LOG.error("PCE cancel returned an unknown RpcStatusEx code !");
 202             return;
 203         }
 204         Services service = serviceDataStoreOperations.getService(input.getServiceName()).get();
 205         PublishNotificationServiceBuilder nbiNotificationBuilder = new PublishNotificationServiceBuilder()
 206                 .setServiceName(service.getServiceName())
 207                 .setServiceAEnd(new ServiceAEndBuilder(service.getServiceAEnd()).build())
 208                 .setServiceZEnd(new ServiceZEndBuilder(service.getServiceZEnd()).build())
 209                 .setCommonId(service.getCommonId())
 210                 .setConnectionType(service.getConnectionType())
 211                 .setTopic(TOPIC);
 212         if (servicePathRpcResult.getStatus() == RpcStatusEx.Failed) {
 213             LOG.info("PCE cancel resource failed !");
 214             sendNbiNotification(nbiNotificationBuilder
 215                     .setResponseFailed("PCE cancel resource failed !")
 216                     .setMessage("ServiceDelete request failed ...")
 217                     .setOperationalState(service.getOperationalState())
 218                     .build());
 219             return;
 220         }
 221         LOG.info("PCE cancel resource done OK !");
 222         OperationResult deleteServicePathOperationResult =
 223                 this.serviceDataStoreOperations.deleteServicePath(input.getServiceName());
 224         if (!deleteServicePathOperationResult.isSuccess()) {
 225             LOG.warn("Service path was not removed from datastore !");
 226         }
 227         OperationResult deleteServiceOperationResult;
 228         String serviceType = "";
 229         if (tempService) {
 230             deleteServiceOperationResult = this.serviceDataStoreOperations.deleteTempService(input.getServiceName());
 231             serviceType = "Temp ";
 232         } else {
 233             deleteServiceOperationResult = this.serviceDataStoreOperations.deleteService(input.getServiceName());
 234         }
 235         if (deleteServiceOperationResult.isSuccess()) {
 236             sendNbiNotification(nbiNotificationBuilder
 237                     .setResponseFailed("")
 238                     .setMessage("Service deleted !")
 239                     .setOperationalState(State.Degraded)
 240                     .build());
 241         } else {
 242             LOG.warn("{}Service was not removed from datastore !", serviceType);
 243             sendNbiNotification(nbiNotificationBuilder
 244                     .setResponseFailed(serviceType + "Service was not removed from datastore !")
 245                     .setMessage("ServiceDelete request failed ...")
 246                     .setOperationalState(service.getOperationalState())
 247                     .build());
 248         }
 249         /**
 250          * if it was an RPC serviceReconfigure, re-launch PCR.
 251          */
 252         if (this.serviceReconfigure) {
 253             LOG.info("cancel resource reserve done, relaunching PCE path computation ...");
 254             this.pceServiceWrapper.performPCE(input.getServiceCreateInput(), true);
 255             this.serviceReconfigure = false;
 256         }
 257     }
 258
 259     @SuppressFBWarnings(
 260         value = "ES_COMPARING_STRINGS_WITH_EQ",
 261         justification = "false positives, not strings but real object references comparisons")
 262     private Boolean compareServicePathRpcResult(ServicePathRpcResult notification) {
 263         if (servicePathRpcResult == null) {
 264             return false;
 265         }
 266         if (servicePathRpcResult.getNotificationType() != notification.getNotificationType()) {
 267             return false;
 268         }
 269         if (servicePathRpcResult.getServiceName() != notification.getServiceName()) {
 270             return false;
 271         }
 272         if (servicePathRpcResult.getStatus() != notification.getStatus()) {
 273             return false;
 274         }
 275         if (servicePathRpcResult.getStatusMessage() != notification.getStatusMessage()) {
 276             return false;
 277         }
 278         return true;
 279     }
 280
 281     public void setInput(ServiceInput serviceInput) {
 282         this.input = serviceInput;
 283     }
 284
 285     public void setServiceReconfigure(Boolean serv) {
 286         this.serviceReconfigure = serv;
 287     }
 288
 289     public void setserviceDataStoreOperations(ServiceDataStoreOperations serviceData) {
 290         this.serviceDataStoreOperations = serviceData;
 291     }
 292
 293     public void setTempService(Boolean tempService) {
 294         this.tempService = tempService;
 295     }
 296
 297     public void setServiceFeasiblity(Boolean serviceFeasiblity) {
 298         this.serviceFeasiblity = serviceFeasiblity;
 299     }
 300
 301     /**
 302      * Send notification to NBI notification in order to publish message.
 303      * @param service PublishNotificationService
 304      */
 305     private void sendNbiNotification(PublishNotificationService service) {
 306         try {
 307             notificationPublishService.putNotification(service);
 308         } catch (InterruptedException e) {
 309             LOG.warn("Cannot send notification to nbi", e);
 310             Thread.currentThread().interrupt();
 311         }
 312     }
 313 }