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