pcep/topology-provider/src/main/java/org/opendaylight/bgpcep/pcep/topology/provider/Stateful07TopologySessionListener.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, 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.bgpcep.pcep.topology.provider;
   9
  10 import com.google.common.base.Charsets;
  11 import com.google.common.base.Function;
  12 import com.google.common.base.Optional;
  13 import com.google.common.base.Preconditions;
  14 import com.google.common.util.concurrent.AsyncFunction;
  15 import com.google.common.util.concurrent.Futures;
  16 import com.google.common.util.concurrent.ListenableFuture;
  17 import java.net.InetAddress;
  18 import java.nio.ByteBuffer;
  19 import java.util.ArrayList;
  20 import java.util.Collections;
  21 import java.util.List;
  22 import java.util.concurrent.atomic.AtomicLong;
  23 import org.opendaylight.protocol.pcep.PCEPSession;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.PcinitiateBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.Srp1;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.Srp1Builder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.pcinitiate.message.PcinitiateMessageBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.pcinitiate.message.pcinitiate.message.Requests;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.pcinitiate.message.pcinitiate.message.RequestsBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Arguments1;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Arguments2;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Arguments3;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.OperationalStatus;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Path1;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Path1Builder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PcrptMessage;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PcupdBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PlspId;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.SrpIdNumber;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.StatefulTlv1;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.StatefulTlv1Builder;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.SymbolicPathName;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Tlvs1;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.Lsp;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.LspBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.lsp.TlvsBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcerr.pcerr.message.error.type.StatefulCase;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcerr.pcerr.message.error.type.stateful._case.stateful.Srps;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.pcrpt.message.Reports;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.PcupdMessageBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.UpdatesBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.updates.PathBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.Srp;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.SrpBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.stateful.capability.tlv.Stateful;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.symbolic.path.name.tlv.SymbolicPathNameBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PcerrMessage;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.open.Tlvs;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.LspId;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.AddLspArgs;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.EnsureLspOperationalInput;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.OperationResult;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.PccSyncState;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.RemoveLspArgs;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.UpdateLspArgs;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.PathComputationClientBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.ReportedLsp;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.ReportedLspBuilder;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.StatefulTlvBuilder;
  71 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  72 import org.slf4j.Logger;
  73 import org.slf4j.LoggerFactory;
  74
  75 final class Stateful07TopologySessionListener extends AbstractTopologySessionListener<SrpIdNumber, PlspId> {
  76     private static final Logger LOG = LoggerFactory.getLogger(Stateful07TopologySessionListener.class);
  77     private final AtomicLong requestId = new AtomicLong(1L);
  78
  79     /**
  80      * @param serverSessionManager
  81      */
  82     Stateful07TopologySessionListener(final ServerSessionManager serverSessionManager) {
  83         super(serverSessionManager);
  84     }
  85
  86     @Override
  87     protected void onSessionUp(final PCEPSession session, final PathComputationClientBuilder pccBuilder) {
  88         final InetAddress peerAddress = session.getRemoteAddress();
  89
  90         final Tlvs tlvs = session.getRemoteTlvs();
  91         if (tlvs != null && tlvs.getAugmentation(Tlvs1.class) != null) {
  92             final Stateful stateful = tlvs.getAugmentation(Tlvs1.class).getStateful();
  93             if (stateful != null) {
  94                 pccBuilder.setReportedLsp(Collections.<ReportedLsp> emptyList());
  95                 pccBuilder.setStateSync(PccSyncState.InitialResync);
  96                 pccBuilder.setStatefulTlv(new StatefulTlvBuilder().addAugmentation(StatefulTlv1.class,
  97                     new StatefulTlv1Builder(tlvs.getAugmentation(Tlvs1.class)).build()).build());
  98             } else {
  99                 LOG.debug("Peer {} does not advertise stateful TLV", peerAddress);
 100             }
 101         } else {
 102             LOG.debug("Peer {} does not advertise stateful TLV", peerAddress);
 103         }
 104     }
 105
 106     @Override
 107     protected boolean onMessage(final MessageContext ctx, final Message message) {
 108         if (message instanceof PcerrMessage) {
 109             final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessage errMsg = ((PcerrMessage) message).getPcerrMessage();
 110             if (errMsg.getErrorType() instanceof StatefulCase) {
 111                 final StatefulCase stat = (StatefulCase)errMsg.getErrorType();
 112                 for (final Srps srps : stat.getStateful().getSrps()) {
 113                     final SrpIdNumber id = srps.getSrp().getOperationId();
 114                     if (id.getValue() != 0) {
 115                         final PCEPRequest req = removeRequest(id);
 116                         if (req != null) {
 117                             req.done(OperationResults.createFailed(errMsg.getErrors()));
 118                         } else {
 119                             LOG.warn("Request ID {} not found in outstanding DB", id);
 120                         }
 121                     }
 122                 }
 123             } else {
 124                 LOG.warn("Unhandled PCErr message {}.", errMsg);
 125                 return true;
 126             }
 127             return false;
 128         }
 129         if (!(message instanceof PcrptMessage)) {
 130             return true;
 131         }
 132
 133         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.PcrptMessage rpt = ((PcrptMessage) message).getPcrptMessage();
 134         for (final Reports report : rpt.getReports()) {
 135             final Lsp lsp = report.getLsp();
 136             final PlspId plspid = lsp.getPlspId();
 137
 138             if (!lsp.isSync() && (lsp.getPlspId() == null || plspid.getValue() == 0)) {
 139                 stateSynchronizationAchieved(ctx);
 140                 continue;
 141             }
 142
 143             final ReportedLspBuilder rlb = new ReportedLspBuilder();
 144
 145             boolean solicited = false;
 146
 147             final Srp srp = report.getSrp();
 148             if (srp != null) {
 149                 final SrpIdNumber id = srp.getOperationId();
 150                 if (id.getValue() != 0) {
 151                     solicited = true;
 152
 153                     switch (lsp.getOperational()) {
 154                     case Active:
 155                     case Down:
 156                     case Up:
 157                         final PCEPRequest req = removeRequest(id);
 158                         if (req != null) {
 159                             LOG.debug("Request {} resulted in LSP operational state {}", id, lsp.getOperational());
 160                             rlb.setMetadata(req.getMetadata());
 161                             ctx.resolveRequest(req);
 162                         } else {
 163                             LOG.warn("Request ID {} not found in outstanding DB", id);
 164                         }
 165                         break;
 166                     case GoingDown:
 167                     case GoingUp:
 168                         // These are transitive states, so we don't have to do anything, as they will be followed
 169                         // up...
 170                         break;
 171                     }
 172                     // if remove flag is set in SRP object, remove the tunnel immediately
 173                     if (srp.getAugmentation(Srp1.class) != null) {
 174                         final Srp1 initiatedSrp = srp.getAugmentation(Srp1.class);
 175                         if (initiatedSrp.isRemove()) {
 176                             super.removeLsp(ctx, plspid);
 177                             return false;
 178                         }
 179                     }
 180                 }
 181             }
 182             final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.lsp.Tlvs tlvs = report.getLsp().getTlvs();
 183             final String name;
 184             if (tlvs != null && tlvs.getSymbolicPathName() != null) {
 185                 name = Charsets.UTF_8.decode(ByteBuffer.wrap(tlvs.getSymbolicPathName().getPathName().getValue())).toString();
 186             } else {
 187                 name = null;
 188             }
 189             LspId lspid = null;
 190             if (tlvs != null && tlvs.getLspIdentifiers() != null) {
 191                 lspid = tlvs.getLspIdentifiers().getLspId();
 192             }
 193             final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.reported.lsp.PathBuilder pb = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.reported.lsp.PathBuilder();
 194             if (report.getPath() != null) {
 195                 pb.fieldsFrom(report.getPath());
 196             }
 197             // LSP is mandatory (if there is none, parser will throw an exception)
 198             // this is to ensure a path will be created at any rate
 199             pb.addAugmentation(Path1.class, new Path1Builder().setLsp(report.getLsp()).build());
 200             pb.setLspId(lspid);
 201             rlb.setPath(Collections.singletonList(pb.build()));
 202             updateLsp(ctx, plspid, name, rlb, solicited, lsp.isRemove());
 203             LOG.debug("LSP {} updated", lsp);
 204         }
 205         return false;
 206     }
 207
 208     private SrpIdNumber nextRequest() {
 209         return new SrpIdNumber(this.requestId.getAndIncrement());
 210     }
 211
 212     @Override
 213     public synchronized ListenableFuture<OperationResult> addLsp(final AddLspArgs input) {
 214         Preconditions.checkArgument(input != null && input.getName() != null && input.getNode() != null && input.getArguments() != null, "Mandatory XML tags are missing.");
 215         LOG.trace("AddLspArgs {}", input);
 216         // Make sure there is no such LSP
 217         final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName());
 218         final ListenableFuture<Optional<ReportedLsp>> f = readOperationalData(lsp);
 219
 220         return Futures.transform(f, new AsyncFunction<Optional<ReportedLsp>, OperationResult>() {
 221             @Override
 222             public ListenableFuture<OperationResult> apply(final Optional<ReportedLsp> rep) {
 223                 if (rep.isPresent()) {
 224                     LOG.debug("Node {} already contains lsp {} at {}", input.getNode(), input.getName(), lsp);
 225                     return OperationResults.UNSENT.future();
 226                 }
 227
 228                 // Build the request
 229                 final RequestsBuilder rb = new RequestsBuilder();
 230                 final Arguments2 args = input.getArguments().getAugmentation(Arguments2.class);
 231                 Preconditions.checkArgument(args != null, "Input is missing operational tag.");
 232                 final Lsp inputLsp = args.getLsp();
 233                 Preconditions.checkArgument(inputLsp != null, "Reported LSP does not contain LSP object.");
 234
 235                 rb.fieldsFrom(input.getArguments());
 236
 237                 final TlvsBuilder tlvsBuilder = new TlvsBuilder();
 238                 tlvsBuilder.setSymbolicPathName(
 239                     new SymbolicPathNameBuilder().setPathName(new SymbolicPathName(input.getName().getBytes(Charsets.UTF_8))).build());
 240                 if (inputLsp.getTlvs() != null) {
 241                     tlvsBuilder.setVsTlv(inputLsp.getTlvs().getVsTlv());
 242                 }
 243
 244                 rb.setSrp(new SrpBuilder().setOperationId(nextRequest()).setProcessingRule(Boolean.TRUE).build());
 245                 rb.setLsp(new LspBuilder().setAdministrative(inputLsp.isAdministrative()).setDelegate(inputLsp.isDelegate()).setPlspId(
 246                     new PlspId(0L)).setTlvs(tlvsBuilder.build()).build());
 247
 248                 final PcinitiateMessageBuilder ib = new PcinitiateMessageBuilder(MESSAGE_HEADER);
 249                 ib.setRequests(Collections.singletonList(rb.build()));
 250
 251                 // Send the message
 252                 return sendMessage(new PcinitiateBuilder().setPcinitiateMessage(ib.build()).build(), rb.getSrp().getOperationId(),
 253                     input.getArguments().getMetadata());
 254             }
 255         });
 256     }
 257
 258     @Override
 259     public synchronized ListenableFuture<OperationResult> removeLsp(final RemoveLspArgs input) {
 260         Preconditions.checkArgument(input != null && input.getName() != null && input.getNode() != null, "Mandatory XML tags are missing.");
 261         LOG.trace("RemoveLspArgs {}", input);
 262         // Make sure the LSP exists, we need it for PLSP-ID
 263         final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName());
 264         final ListenableFuture<Optional<ReportedLsp>> f = readOperationalData(lsp);
 265
 266         return Futures.transform(f, new AsyncFunction<Optional<ReportedLsp>, OperationResult>() {
 267             @Override
 268             public ListenableFuture<OperationResult> apply(final Optional<ReportedLsp> rep) {
 269                 if (!rep.isPresent()) {
 270                     LOG.debug("Node {} does not contain LSP {}", input.getNode(), input.getName());
 271                     return OperationResults.UNSENT.future();
 272                 }
 273
 274                 // it doesn't matter how many lsps there are in the path list, we only need delegate & plspid that is the same in each path
 275                 final Path1 ra = rep.get().getPath().get(0).getAugmentation(Path1.class);
 276                 Preconditions.checkState(ra != null, "Reported LSP reported null from data-store.");
 277                 final Lsp reportedLsp = ra.getLsp();
 278                 Preconditions.checkState(reportedLsp != null, "Reported LSP does not contain LSP object.");
 279
 280                 // Build the request and send it
 281                 final RequestsBuilder rb = new RequestsBuilder();
 282                 rb.setSrp(new SrpBuilder().addAugmentation(Srp1.class, new Srp1Builder().setRemove(Boolean.TRUE).build()).setOperationId(nextRequest()).setProcessingRule(Boolean.TRUE).build());
 283                 rb.setLsp(new LspBuilder().setRemove(Boolean.FALSE).setPlspId(reportedLsp.getPlspId()).setDelegate(reportedLsp.isDelegate()).build());
 284
 285                 final PcinitiateMessageBuilder ib = new PcinitiateMessageBuilder(MESSAGE_HEADER);
 286                 ib.setRequests(Collections.singletonList(rb.build()));
 287                 return sendMessage(new PcinitiateBuilder().setPcinitiateMessage(ib.build()).build(), rb.getSrp().getOperationId(), null);
 288             }
 289         });
 290     }
 291
 292     @Override
 293     public synchronized ListenableFuture<OperationResult> updateLsp(final UpdateLspArgs input) {
 294         Preconditions.checkArgument(input != null && input.getName() != null && input.getNode() != null && input.getArguments() != null, "Mandatory XML tags are missing.");
 295         LOG.trace("UpdateLspArgs {}", input);
 296         // Make sure the LSP exists
 297         final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName());
 298         final ListenableFuture<Optional<ReportedLsp>> f = readOperationalData(lsp);
 299
 300         return Futures.transform(f, new AsyncFunction<Optional<ReportedLsp>, OperationResult>() {
 301             @Override
 302             public ListenableFuture<OperationResult> apply(final Optional<ReportedLsp> rep) {
 303                 if (!rep.isPresent()) {
 304                     LOG.debug("Node {} does not contain LSP {}", input.getNode(), input.getName());
 305                     return OperationResults.UNSENT.future();
 306                 }
 307
 308                 // it doesn't matter how many lsps there are in the path list, we only need plspid that is the same in each path
 309                 final Path1 ra = rep.get().getPath().get(0).getAugmentation(Path1.class);
 310                 Preconditions.checkState(ra != null, "Reported LSP reported null from data-store.");
 311                 final Lsp reportedLsp = ra.getLsp();
 312                 Preconditions.checkState(reportedLsp != null, "Reported LSP does not contain LSP object.");
 313
 314                 // create mandatory objects
 315                 final Srp srp = new SrpBuilder().setOperationId(nextRequest()).setProcessingRule(Boolean.TRUE).build();
 316
 317                 final Lsp inputLsp = input.getArguments().getAugmentation(Arguments3.class).getLsp();
 318                 Lsp lsp = null;
 319                 if (inputLsp != null) {
 320                     lsp = new LspBuilder().setPlspId(reportedLsp.getPlspId()).setDelegate((inputLsp.isDelegate() != null) ? inputLsp.isDelegate() : false).setTlvs(inputLsp.getTlvs()).setAdministrative((inputLsp.isAdministrative() != null) ? inputLsp.isAdministrative() : false).build();
 321                 } else {
 322                     lsp = new LspBuilder().setPlspId(reportedLsp.getPlspId()).build();
 323                 }
 324                 Message msg = null;
 325                 // the D bit that was reported decides the type of PCE message sent
 326                 Preconditions.checkNotNull(reportedLsp.isDelegate());
 327                 if (reportedLsp.isDelegate()) {
 328                     // we already have delegation, send update
 329                     final UpdatesBuilder rb = new UpdatesBuilder();
 330                     rb.setSrp(srp);
 331                     rb.setLsp(lsp);
 332                     final PathBuilder pb = new PathBuilder();
 333                     pb.fieldsFrom(input.getArguments());
 334                     rb.setPath(pb.build());
 335                     final PcupdMessageBuilder ub = new PcupdMessageBuilder(MESSAGE_HEADER);
 336                     ub.setUpdates(Collections.singletonList(rb.build()));
 337                     msg = new PcupdBuilder().setPcupdMessage(ub.build()).build();
 338                 } else {
 339                     // we want to revoke delegation, different type of message
 340                     // is sent because of specification by Siva
 341                     // this message is also sent, when input delegate bit is set to 0
 342                     // generating an error in PCC
 343                     final List<Requests> reqs = new ArrayList<>();
 344                     reqs.add(new RequestsBuilder().setSrp(srp).setLsp(lsp).build());
 345                     final PcinitiateMessageBuilder ib = new PcinitiateMessageBuilder();
 346                     ib.setRequests(reqs);
 347                     msg = new PcinitiateBuilder().setPcinitiateMessage(ib.build()).build();
 348                 }
 349                 return sendMessage(msg, srp.getOperationId(), input.getArguments().getMetadata());
 350             }
 351         });
 352     }
 353
 354     @Override
 355     public synchronized ListenableFuture<OperationResult> ensureLspOperational(final EnsureLspOperationalInput input) {
 356         Preconditions.checkArgument(input != null && input.getName() != null && input.getNode() != null && input.getArguments() != null, "Mandatory XML tags are missing.");
 357         final OperationalStatus op;
 358         final Arguments1 aa = input.getArguments().getAugmentation(Arguments1.class);
 359         if (aa != null) {
 360             op = aa.getOperational();
 361         } else {
 362             op = null;
 363         }
 364
 365         // Make sure the LSP exists
 366         final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName());
 367         LOG.debug("Checking if LSP {} has operational state {}", lsp, op);
 368         final ListenableFuture<Optional<ReportedLsp>> f = readOperationalData(lsp);
 369
 370         return Futures.transform(f, new Function<Optional<ReportedLsp>, OperationResult>() {
 371             @Override
 372             public OperationResult apply(final Optional<ReportedLsp> rep) {
 373                 if (!rep.isPresent()) {
 374                     LOG.debug("Node {} does not contain LSP {}", input.getNode(), input.getName());
 375                     return OperationResults.UNSENT;
 376                 }
 377
 378                 // check if at least one of the paths has the same status as requested
 379                 boolean operational = false;
 380                 for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.reported.lsp.Path p : rep.get().getPath()) {
 381                     final Path1 p1 = p.getAugmentation(Path1.class);
 382                     if (p1 == null) {
 383                         LOG.warn("Node {} LSP {} does not contain data", input.getNode(), input.getName());
 384                         return OperationResults.UNSENT;
 385                     }
 386                     final Lsp l = p1.getLsp();
 387                     if (l.getOperational().equals(op)) {
 388                         operational = true;
 389                     }
 390                 }
 391
 392                 return operational ? OperationResults.SUCCESS : OperationResults.UNSENT;
 393             }
 394         });
 395     }
 396 }