pce/src/main/java/org/opendaylight/transportpce/pce/service/PathComputationServiceImpl.java

   1 /*
   2  * Copyright © 2017 AT&T, 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.pce.service;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import com.google.common.util.concurrent.ListeningExecutorService;
  12 import com.google.common.util.concurrent.MoreExecutors;
  13
  14 import java.util.ArrayList;
  15 import java.util.List;
  16 import java.util.concurrent.Callable;
  17 import java.util.concurrent.Executors;
  18
  19 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  20 import org.opendaylight.transportpce.common.network.NetworkTransactionService;
  21 import org.opendaylight.transportpce.pce.PceComplianceCheck;
  22 import org.opendaylight.transportpce.pce.PceComplianceCheckResult;
  23 import org.opendaylight.transportpce.pce.PceSendingPceRPCs;
  24 import org.opendaylight.transportpce.pce.gnpy.GnpyResult;
  25 import org.opendaylight.yang.gen.v1.gnpy.path.rev190502.result.Response;
  26 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.CancelResourceReserveInput;
  27 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.CancelResourceReserveOutput;
  28 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.CancelResourceReserveOutputBuilder;
  29 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.PathComputationRequestInput;
  30 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.PathComputationRequestOutput;
  31 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.PathComputationRequestOutputBuilder;
  32 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.ServicePathRpcResult;
  33 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.ServicePathRpcResultBuilder;
  34 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.gnpy.GnpyResponse;
  35 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.gnpy.GnpyResponseBuilder;
  36 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.gnpy.gnpy.response.ResponseType;
  37 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.gnpy.gnpy.response.response.type.NoPathCase;
  38 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.gnpy.gnpy.response.response.type.NoPathCaseBuilder;
  39 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.gnpy.gnpy.response.response.type.PathCase;
  40 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.gnpy.gnpy.response.response.type.PathCaseBuilder;
  41 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.path.performance.PathProperties;
  42 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.path.performance.PathPropertiesBuilder;
  43 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.path.performance.path.properties.PathMetric;
  44 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.path.performance.path.properties.PathMetricBuilder;
  45 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.service.path.rpc.result.PathDescription;
  46 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.pce.rev190624.service.path.rpc.result.PathDescriptionBuilder;
  47 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.service.types.rev190531.configuration.response.common.ConfigurationResponseCommonBuilder;
  48 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev171017.path.description.AToZDirection;
  49 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.pathdescription.rev171017.path.description.ZToADirection;
  50 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev191009.RpcStatusEx;
  51 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev191009.ServicePathNotificationTypes;
  52 import org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev191009.response.parameters.sp.ResponseParametersBuilder;
  53 import org.slf4j.Logger;
  54 import org.slf4j.LoggerFactory;
  55
  56 public class PathComputationServiceImpl implements PathComputationService {
  57
  58     private static final Logger LOG = LoggerFactory.getLogger(PathComputationServiceImpl.class);
  59     private final NotificationPublishService notificationPublishService;
  60     private NetworkTransactionService networkTransactionService;
  61     private final ListeningExecutorService executor;
  62     ServicePathRpcResult notification = null;
  63
  64     public PathComputationServiceImpl(NetworkTransactionService networkTransactionService,
  65                                       NotificationPublishService notificationPublishService) {
  66         this.notificationPublishService = notificationPublishService;
  67         this.networkTransactionService = networkTransactionService;
  68         this.executor = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(5));
  69     }
  70
  71     public void init() {
  72         LOG.info("init ...");
  73     }
  74
  75     public void close() {
  76         LOG.info("close.");
  77     }
  78
  79     private void sendNotifications(ServicePathNotificationTypes servicePathNotificationTypes, String serviceName,
  80             RpcStatusEx rpcStatusEx, String message, PathDescription pathDescription) {
  81         ServicePathRpcResultBuilder servicePathRpcResultBuilder =
  82                 new ServicePathRpcResultBuilder().setNotificationType(servicePathNotificationTypes)
  83                         .setServiceName(serviceName).setStatus(rpcStatusEx).setStatusMessage(message);
  84         if (pathDescription != null) {
  85             servicePathRpcResultBuilder.setPathDescription(pathDescription);
  86         }
  87         this.notification = servicePathRpcResultBuilder.build();
  88         try {
  89             notificationPublishService.putNotification(this.notification);
  90         } catch (InterruptedException e) {
  91             LOG.info("notification offer rejected : ", e.getMessage());
  92         }
  93     }
  94
  95     @Override
  96     public ListenableFuture<CancelResourceReserveOutput> cancelResourceReserve(CancelResourceReserveInput input) {
  97         LOG.info("cancelResourceReserve");
  98         return executor.submit(new Callable<CancelResourceReserveOutput>() {
  99
 100             @Override
 101             public CancelResourceReserveOutput call() throws Exception {
 102                 String message = "";
 103                 sendNotifications(ServicePathNotificationTypes.CancelResourceReserve, input.getServiceName(),
 104                         RpcStatusEx.Pending, "Service compliant, submitting cancelResourceReserve Request ...", null);
 105                 PceSendingPceRPCs sendingPCE = new PceSendingPceRPCs();
 106                 sendingPCE.cancelResourceReserve();
 107                 if (sendingPCE.getSuccess()) {
 108                     message = "ResourceReserve cancelled !";
 109                 } else {
 110                     message = "Cancelling ResourceReserve failed !";
 111                 }
 112                 LOG.info(message);
 113                 sendNotifications(ServicePathNotificationTypes.CancelResourceReserve, input.getServiceName(),
 114                         RpcStatusEx.Successful, "cancel Resource Reserve successful!", null);
 115                 ConfigurationResponseCommonBuilder configurationResponseCommon =
 116                         new ConfigurationResponseCommonBuilder();
 117                 configurationResponseCommon.setAckFinalIndicator("Yes")
 118                         .setRequestId(input.getServiceHandlerHeader().getRequestId()).setResponseCode("200")
 119                         .setResponseMessage("");
 120                 CancelResourceReserveOutputBuilder output = new CancelResourceReserveOutputBuilder();
 121                 output.setConfigurationResponseCommon(configurationResponseCommon.build());
 122                 return output.build();
 123             }
 124         });
 125     }
 126
 127     @Override
 128     public ListenableFuture<PathComputationRequestOutput> pathComputationRequest(PathComputationRequestInput input) {
 129         LOG.info("pathComputationRequest");
 130         return executor.submit(new Callable<PathComputationRequestOutput>() {
 131
 132             @Override
 133             public PathComputationRequestOutput call() throws Exception {
 134                 PathComputationRequestOutputBuilder output = new PathComputationRequestOutputBuilder();
 135                 ConfigurationResponseCommonBuilder configurationResponseCommon =
 136                         new ConfigurationResponseCommonBuilder();
 137                 PceComplianceCheckResult check = PceComplianceCheck.check(input);
 138                 if (!check.hasPassed()) {
 139                     LOG.error("Path not calculated, service not compliant : {}", check.getMessage());
 140                     sendNotifications(ServicePathNotificationTypes.PathComputationRequest, input.getServiceName(),
 141                             RpcStatusEx.Failed, "Path not calculated, service not compliant", null);
 142                     configurationResponseCommon.setAckFinalIndicator("Yes")
 143                             .setRequestId(input.getServiceHandlerHeader().getRequestId())
 144                             .setResponseCode("Path not calculated").setResponseMessage(check.getMessage());
 145                     output.setConfigurationResponseCommon(configurationResponseCommon.build())
 146                             .setResponseParameters(null);
 147                     return output.build();
 148                 }
 149                 sendNotifications(ServicePathNotificationTypes.PathComputationRequest, input.getServiceName(),
 150                         RpcStatusEx.Pending, "Service compliant, submitting pathComputation Request ...", null);
 151                 String message = "";
 152                 String responseCode = "";
 153                 PceSendingPceRPCs sendingPCE = new PceSendingPceRPCs(input, networkTransactionService);
 154                 sendingPCE.pathComputation();
 155                 message = sendingPCE.getMessage();
 156                 responseCode = sendingPCE.getResponseCode();
 157                 PathDescriptionBuilder path = null;
 158                 path = sendingPCE.getPathDescription();
 159                 LOG.info("PCE response: {} {}", message, responseCode);
 160
 161                 //add the GNPy result
 162                 GnpyResult gnpyAtoZ = sendingPCE.getGnpyAtoZ();
 163                 GnpyResult gnpyZtoA = sendingPCE.getGnpyZtoA();
 164                 List<GnpyResponse> listResponse = new ArrayList<>();
 165                 if (gnpyAtoZ != null) {
 166                     GnpyResponse respAtoZ = generateGnpyResponse(gnpyAtoZ.getResponse(),"A-to-Z");
 167                     listResponse.add(respAtoZ);
 168                 }
 169                 if (gnpyZtoA != null) {
 170                     GnpyResponse respZtoA = generateGnpyResponse(gnpyZtoA.getResponse(),"Z-to-A");
 171                     listResponse.add(respZtoA);
 172                 }
 173                 output.setGnpyResponse(listResponse);
 174
 175                 if (!(sendingPCE.getSuccess()) || (path == null)) {
 176                     configurationResponseCommon.setAckFinalIndicator("Yes")
 177                             .setRequestId(input.getServiceHandlerHeader().getRequestId()).setResponseCode(responseCode)
 178                             .setResponseMessage(message);
 179                     output.setConfigurationResponseCommon(configurationResponseCommon.build());
 180                     sendNotifications(ServicePathNotificationTypes.PathComputationRequest, input.getServiceName(),
 181                             RpcStatusEx.Failed, "Path not calculated", null);
 182                     return output.build();
 183                 }
 184                 // Path calculator returned Success
 185                 configurationResponseCommon.setAckFinalIndicator("Yes")
 186                         .setRequestId(input.getServiceHandlerHeader().getRequestId()).setResponseCode(responseCode)
 187                         .setResponseMessage(message);
 188                 PathDescription pathDescription = new org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce
 189                         .pce.rev190624.service.path.rpc.result.PathDescriptionBuilder()
 190                                 .setAToZDirection(path.getAToZDirection()).setZToADirection(path.getZToADirection())
 191                                 .build();
 192                 sendNotifications(ServicePathNotificationTypes.PathComputationRequest, input.getServiceName(),
 193                         RpcStatusEx.Successful, message, pathDescription);
 194                 org.opendaylight.yang.gen.v1.http.org.transportpce.b.c._interface.service.types.rev191009.response
 195                     .parameters.sp.response.parameters.PathDescription pathDescription1 = new org.opendaylight.yang.gen
 196                         .v1.http.org.transportpce.b.c._interface.service.types.rev191009.response.parameters.sp
 197                         .response.parameters.PathDescriptionBuilder()
 198                                 .setAToZDirection(path.getAToZDirection()).setZToADirection(path.getZToADirection())
 199                                 .build();
 200                 ResponseParametersBuilder rpb = new ResponseParametersBuilder().setPathDescription(pathDescription1);
 201                 output.setConfigurationResponseCommon(configurationResponseCommon.build())
 202                         .setResponseParameters(rpb.build());
 203
 204                 //debug prints
 205                 AToZDirection atoz = pathDescription.getAToZDirection();
 206                 if ((atoz != null) && (atoz.getAToZ() != null)) {
 207                     LOG.debug("Impl AtoZ Notification: [{}] elements in description", atoz.getAToZ().size());
 208                     for (int i = 0; i < atoz.getAToZ().size(); i++) {
 209                         LOG.debug("Impl AtoZ Notification: [{}] {}", i, atoz.getAToZ().get(i));
 210                     }
 211                 }
 212                 ZToADirection ztoa = pathDescription.getZToADirection();
 213                 if ((ztoa != null) && (ztoa.getZToA() != null)) {
 214                     LOG.debug("Impl ZtoA Notification: [{}] elements in description", ztoa.getZToA().size());
 215                     for (int i = 0; i < ztoa.getZToA().size(); i++) {
 216                         LOG.debug("Impl ZtoA Notification: [{}] {}", i, ztoa.getZToA().get(i));
 217                     }
 218                 }
 219                 return output.build();
 220             }
 221         });
 222     }
 223
 224     public GnpyResponse generateGnpyResponse(Response responseGnpy, String pathDir) {
 225         ResponseType respType = null;
 226         boolean feasible = true;
 227         if (responseGnpy != null) {
 228             if (responseGnpy.getResponseType() instanceof org.opendaylight.yang.gen.v1.gnpy.path.rev190502.result
 229                     .response.response.type.NoPathCase) {
 230                 LOG.info("GNPy : path is not feasible");
 231                 org.opendaylight.yang.gen.v1.gnpy.path.rev190502.result.response.response.type.NoPathCase
 232                     noPathGnpy = (org.opendaylight.yang.gen.v1.gnpy.path.rev190502.result.response.response.type
 233                     .NoPathCase) responseGnpy.getResponseType();
 234                 NoPathCase noPathCase = new NoPathCaseBuilder().setNoPath(noPathGnpy.getNoPath()).build();
 235                 respType = noPathCase;
 236                 feasible = false;
 237             } else if (responseGnpy.getResponseType() instanceof org.opendaylight.yang.gen.v1.gnpy.path.rev190502.result
 238                     .response.response.type.PathCase) {
 239                 LOG.info("GNPy : path is feasible");
 240                 org.opendaylight.yang.gen.v1.gnpy.path.rev190502.result.response.response.type.PathCase pathCase =
 241                         (org.opendaylight.yang.gen.v1.gnpy.path.rev190502.result.response.response.type.PathCase)
 242                         responseGnpy.getResponseType();
 243                 List<org.opendaylight.yang.gen.v1.gnpy.path.rev190502.generic.path.properties.path.properties
 244                     .PathMetric> pathMetricList = pathCase.getPathProperties().getPathMetric();
 245                 List<PathMetric> gnpyPathMetricList = new ArrayList<>();
 246                 for (org.opendaylight.yang.gen.v1.gnpy.path.rev190502.generic.path.properties.path.properties.PathMetric
 247                         pathMetricGnpy : pathMetricList) {
 248                     PathMetric pathMetric = new PathMetricBuilder().setMetricType(pathMetricGnpy.getMetricType())
 249                             .setAccumulativeValue(pathMetricGnpy.getAccumulativeValue()).build();
 250                     gnpyPathMetricList.add(pathMetric);
 251                 }
 252                 PathProperties pathProperties = new PathPropertiesBuilder().setPathMetric(gnpyPathMetricList).build();
 253                 PathCase gnpyPathCase = new PathCaseBuilder().setPathProperties(pathProperties).build();
 254                 respType = gnpyPathCase;
 255                 feasible = true;
 256             }
 257         }
 258         GnpyResponse gnpypResp = new GnpyResponseBuilder().setPathDir(pathDir).setResponseType(respType)
 259                 .setFeasibility(feasible).build();
 260         return gnpypResp;
 261     }
 262
 263 }