pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/message/PCEPRequestMessageParser.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.protocol.pcep.impl.message;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Preconditions;
  12 import io.netty.buffer.ByteBuf;
  13 import io.netty.buffer.Unpooled;
  14 import java.util.ArrayList;
  15 import java.util.List;
  16 import org.opendaylight.protocol.pcep.spi.AbstractMessageParser;
  17 import org.opendaylight.protocol.pcep.spi.MessageUtil;
  18 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
  19 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
  20 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
  21 import org.opendaylight.protocol.pcep.spi.VendorInformationObjectRegistry;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.Pcreq;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.PcreqBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.classtype.object.ClassType;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.endpoints.object.EndpointsObj;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.Xro;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.gc.object.Gc;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.load.balancing.object.LoadBalancing;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.monitoring.object.Monitoring;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.of.object.Of;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.path.key.object.PathKey;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcc.id.req.object.PccIdReq;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pce.id.object.PceId;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.PcreqMessage;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.PcreqMessageBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.MonitoringRequest;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.MonitoringRequestBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.Requests;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.RequestsBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.Svec;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.SvecBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.monitoring.request.PceIdList;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.monitoring.request.PceIdListBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.PathKeyExpansionBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputation;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputationBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2p;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2pBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRoute;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRouteBuilder;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.Rro;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vendor.information.objects.VendorInformationObject;
  62
  63 /**
  64  * Parser for {@link Pcreq}
  65  */
  66 public class PCEPRequestMessageParser extends AbstractMessageParser {
  67
  68     public static final int TYPE = 3;
  69
  70     public PCEPRequestMessageParser(final ObjectRegistry registry, final VendorInformationObjectRegistry viRegistry) {
  71         super(registry, viRegistry);
  72     }
  73
  74     @Override
  75     public void serializeMessage(final Message message, final ByteBuf out) {
  76         Preconditions.checkArgument(message instanceof Pcreq, "Wrong instance of Message. Passed instance of %s. Need Pcreq.", message.getClass());
  77         final PcreqMessage msg = ((Pcreq) message).getPcreqMessage();
  78         if (msg.getRequests() == null || msg.getRequests().isEmpty()) {
  79             throw new IllegalArgumentException("Requests cannot be null or empty.");
  80         }
  81         final ByteBuf buffer = Unpooled.buffer();
  82         if (msg.getMonitoringRequest() != null) {
  83             serializeMonitoringRequest(msg.getMonitoringRequest(), buffer);
  84         }
  85         if (msg.getSvec() != null) {
  86             serializeSvec(msg, buffer);
  87         }
  88         serializeRequest(msg, buffer);
  89         MessageUtil.formatMessage(TYPE, buffer, out);
  90     }
  91
  92     protected void serializeRequest(final PcreqMessage msg, final ByteBuf buffer) {
  93         for (final Requests req : msg.getRequests()) {
  94             serializeObject(req.getRp(), buffer);
  95             serializeVendorInformationObjects(req.getVendorInformationObject(), buffer);
  96             if (req.getPathKeyExpansion() != null) {
  97                 serializeObject(req.getPathKeyExpansion().getPathKey(), buffer);
  98             }
  99             if (req.getSegmentComputation() != null) {
 100                 final SegmentComputation sc = req.getSegmentComputation();
 101                 if (sc.getP2p() != null) {
 102                     serializeP2P(buffer, sc.getP2p());
 103                 }
 104             }
 105         }
 106     }
 107
 108     protected void serializeSvec(final PcreqMessage msg, final ByteBuf buffer) {
 109         for (final Svec s : msg.getSvec()) {
 110             serializeObject(s.getSvec(), buffer);
 111             serializeObject(s.getOf(), buffer);
 112             serializeObject(s.getGc(), buffer);
 113             serializeObject(s.getXro(), buffer);
 114             if (s.getMetric() != null) {
 115                 for (final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.svec.Metric m : s.getMetric()) {
 116                     serializeObject(m.getMetric(), buffer);
 117                 }
 118             }
 119             serializeVendorInformationObjects(s.getVendorInformationObject(), buffer);
 120         }
 121     }
 122
 123     protected void serializeP2P(final ByteBuf buffer, final P2p p2p) {
 124         serializeObject(p2p.getEndpointsObj(), buffer);
 125         serializeVendorInformationObjects(p2p.getVendorInformationObject(), buffer);
 126         if (p2p.getReportedRoute() != null) {
 127             final ReportedRoute rr = p2p.getReportedRoute();
 128             if (rr != null) {
 129                 serializeObject(rr.getRro(), buffer);
 130                 serializeObject(rr.getBandwidth(), buffer);
 131             }
 132         }
 133         serializeObject(p2p.getLoadBalancing(), buffer);
 134         serializeObject(p2p.getLspa(), buffer);
 135         serializeObject(p2p.getBandwidth(), buffer);
 136         if (p2p.getMetrics() != null) {
 137             for (final Metrics m : p2p.getMetrics()) {
 138                 serializeObject(m.getMetric(), buffer);
 139             }
 140         }
 141         serializeObject(p2p.getIro(), buffer);
 142         serializeObject(p2p.getRro(), buffer);
 143         serializeObject(p2p.getXro(), buffer);
 144         serializeObject(p2p.getOf(), buffer);
 145         serializeObject(p2p.getClassType(), buffer);
 146     }
 147
 148     protected void serializeMonitoringRequest(final MonitoringRequest monReq, final ByteBuf out) {
 149         serializeObject(monReq.getMonitoring(), out);
 150         serializeObject(monReq.getPccIdReq(), out);
 151         if (monReq.getPceIdList() != null) {
 152             for (final PceIdList pceId : monReq.getPceIdList()) {
 153                 serializeObject(pceId.getPceId(), out);
 154             }
 155         }
 156     }
 157
 158     @Override
 159     protected Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
 160         if (objects == null) {
 161             throw new IllegalArgumentException("Passed list can't be null.");
 162         }
 163         if (objects.isEmpty()) {
 164             throw new PCEPDeserializerException("Pcrep message cannot be empty.");
 165         }
 166         final PcreqMessageBuilder mBuilder = new PcreqMessageBuilder();
 167         mBuilder.setMonitoringRequest(getMonitoring(objects));
 168         final List<Svec> svecs = getSvecs(objects, errors);
 169         if (!svecs.isEmpty()) {
 170             mBuilder.setSvec(svecs);
 171         }
 172         final List<Requests> requests = getRequests(objects, errors);
 173         if (requests != null && !requests.isEmpty()) {
 174             mBuilder.setRequests(requests);
 175         } else {
 176             errors.add(createErrorMsg(PCEPErrors.RP_MISSING, Optional.<Rp>absent()));
 177         }
 178         if (!objects.isEmpty()) {
 179             throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
 180         }
 181         return new PcreqBuilder().setPcreqMessage(mBuilder.build()).build();
 182     }
 183
 184     protected List<Svec> getSvecs(final List<Object> objects, final List<Message> errors) {
 185         final List<Svec> svecList = new ArrayList<>();
 186         while (!objects.isEmpty()) {
 187             final SvecBuilder sBuilder = new SvecBuilder();
 188             final Svec svecComp = getValidSvec(sBuilder, objects);
 189             if (svecComp == null) {
 190                 break;
 191             }
 192             svecList.add(svecComp);
 193         }
 194         return svecList;
 195     }
 196
 197     protected List<Requests> getRequests(final List<Object> objects, final List<Message> errors) {
 198         final List<Requests> requests = new ArrayList<>();
 199         while (!objects.isEmpty()) {
 200             final RequestsBuilder rBuilder = new RequestsBuilder();
 201             Rp rpObj = null;
 202             if (objects.get(0) instanceof Rp) {
 203                 rpObj = (Rp) objects.get(0);
 204                 objects.remove(0);
 205                 if (!rpObj.isProcessingRule()) {
 206                     errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.<Rp>absent()));
 207                 } else {
 208                     rBuilder.setRp(rpObj);
 209                 }
 210             } else {
 211                 // if RP obj is missing return error only
 212                 errors.add(createErrorMsg(PCEPErrors.RP_MISSING, Optional.<Rp>absent()));
 213                 return null;
 214             }
 215             final List<VendorInformationObject> vendorInfo = addVendorInformationObjects(objects);
 216             if (!vendorInfo.isEmpty()) {
 217                 rBuilder.setVendorInformationObject(vendorInfo);
 218             }
 219             // expansion
 220             if (rpObj.isPathKey()) {
 221                 if (objects.get(0) instanceof PathKey) {
 222                     rBuilder.setPathKeyExpansion(new PathKeyExpansionBuilder().setPathKey((PathKey) objects.get(0)).build());
 223                 }
 224                 continue;
 225             }
 226
 227             final P2pBuilder p2pBuilder = new P2pBuilder();
 228
 229             if (!objects.isEmpty() && objects.get(0) instanceof EndpointsObj) {
 230                 final EndpointsObj ep = (EndpointsObj) objects.get(0);
 231                 objects.remove(0);
 232                 if (!ep.isProcessingRule()) {
 233                     errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.of(rpObj)));
 234                 } else {
 235                     p2pBuilder.setEndpointsObj(ep);
 236                 }
 237             } else {
 238                 errors.add(createErrorMsg(PCEPErrors.END_POINTS_MISSING, Optional.of(rpObj)));
 239                 return null;
 240             }
 241             // p2p
 242             if (!rpObj.isP2mp()) {
 243                 final SegmentComputation segm = getSegmentComputation(p2pBuilder, objects, errors, rpObj);
 244                 if (segm != null) {
 245                     rBuilder.setSegmentComputation(segm);
 246                 }
 247             }
 248             requests.add(rBuilder.build());
 249         }
 250         return requests;
 251     }
 252
 253     protected SegmentComputation getSegmentComputation(final P2pBuilder builder, final List<Object> objects, final List<Message> errors,
 254             final Rp rp) {
 255         final List<Metrics> metrics = new ArrayList<>();
 256         final List<VendorInformationObject> viObjects = new ArrayList<>();
 257
 258         State state = State.INIT;
 259         while (!objects.isEmpty() && state != State.END) {
 260             Object obj = objects.get(0);
 261
 262             switch (state) {
 263             case INIT:
 264                 state = State.REPORTED_IN;
 265                 if (obj instanceof Rro) {
 266                     final ReportedRouteBuilder rrBuilder = new ReportedRouteBuilder();
 267                     rrBuilder.setRro((Rro) obj);
 268                     objects.remove(0);
 269                     obj = objects.get(0);
 270                     if (obj instanceof Bandwidth) {
 271                         rrBuilder.setBandwidth((Bandwidth) obj);
 272                     }
 273                     break;
 274                 }
 275             case REPORTED_IN:
 276                 state = State.VENDOR_INFO_LIST;
 277                 if (obj instanceof VendorInformationObject) {
 278                     viObjects.add((VendorInformationObject) obj);
 279                     state = State.REPORTED_IN;
 280                     break;
 281                 }
 282             case VENDOR_INFO_LIST:
 283                 state = State.LOAD_BIN;
 284                 if (obj instanceof LoadBalancing) {
 285                     builder.setLoadBalancing((LoadBalancing) obj);
 286                     break;
 287                 }
 288             case LOAD_BIN:
 289                 state = State.LSPA_IN;
 290                 if (obj instanceof Lspa) {
 291                     builder.setLspa((Lspa) obj);
 292                     break;
 293                 }
 294             case LSPA_IN:
 295                 state = State.BANDWIDTH_IN;
 296                 if (obj instanceof Bandwidth) {
 297                     builder.setBandwidth((Bandwidth) obj);
 298                     break;
 299                 }
 300             case BANDWIDTH_IN:
 301                 state = State.METRIC_IN;
 302                 if (obj instanceof Metric) {
 303                     metrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
 304                     state = State.BANDWIDTH_IN;
 305                     break;
 306                 }
 307             case METRIC_IN:
 308                 state = State.IRO_IN;
 309                 if (obj instanceof Iro) {
 310                     builder.setIro((Iro) obj);
 311                     break;
 312                 }
 313             case IRO_IN:
 314                 state = State.RRO_IN;
 315                 if (obj instanceof Rro) {
 316                     builder.setRro((Rro) obj);
 317                     break;
 318                 }
 319             case RRO_IN:
 320                 state = State.XRO_IN;
 321                 if (obj instanceof Xro) {
 322                     builder.setXro((Xro) obj);
 323                     break;
 324                 }
 325             case XRO_IN:
 326                 state = State.OF_IN;
 327                 if (obj instanceof Of) {
 328                     builder.setOf((Of) obj);
 329                     break;
 330                 }
 331             case OF_IN:
 332                 state = State.CT_IN;
 333                 if (obj instanceof ClassType) {
 334                     final ClassType classType = (ClassType) obj;
 335                     if (!classType.isProcessingRule()) {
 336                         errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.of(rp)));
 337                     } else {
 338                         builder.setClassType(classType);
 339                     }
 340                     break;
 341                 }
 342             case CT_IN:
 343                 state = State.END;
 344                 break;
 345             case END:
 346                 break;
 347             default:
 348                 break;
 349             }
 350             if (!state.equals(State.END)) {
 351                 objects.remove(0);
 352             }
 353         }
 354         if (!metrics.isEmpty()) {
 355             builder.setMetrics(metrics);
 356         }
 357         if (!viObjects.isEmpty()) {
 358             builder.setVendorInformationObject(viObjects);
 359         }
 360
 361         if (rp.isReoptimization()
 362                 && builder.getBandwidth() != null
 363                 && !builder.getReportedRoute().getBandwidth().getBandwidth().equals(
 364                         new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth(new byte[] { 0 }))
 365                 && builder.getReportedRoute().getRro() == null) {
 366             errors.add(createErrorMsg(PCEPErrors.RRO_MISSING, Optional.of(rp)));
 367             return null;
 368         }
 369         return new SegmentComputationBuilder().setP2p(builder.build()).build();
 370     }
 371
 372     private enum State {
 373         INIT, REPORTED_IN, VENDOR_INFO_LIST, LOAD_BIN, LSPA_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, RRO_IN, XRO_IN, OF_IN, CT_IN, END
 374     }
 375
 376     private Svec getValidSvec(final SvecBuilder builder, final List<Object> objects) {
 377         if (objects == null || objects.isEmpty()) {
 378             throw new IllegalArgumentException("List cannot be null or empty.");
 379         }
 380
 381         if (objects.get(0) instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.svec.object.Svec) {
 382             builder.setSvec((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.svec.object.Svec) objects.get(0));
 383             objects.remove(0);
 384         } else {
 385             return null;
 386         }
 387
 388         final List<Metrics> metrics = new ArrayList<>();
 389         final List<VendorInformationObject> viObjects = new ArrayList<>();
 390
 391         Object obj = null;
 392         SvecState state = SvecState.INIT;
 393         while (!objects.isEmpty() && !state.equals(SvecState.END)) {
 394             obj = objects.get(0);
 395
 396             switch (state) {
 397             case INIT:
 398                 state = SvecState.OF_IN;
 399                 if (obj instanceof Of) {
 400                     builder.setOf((Of) obj);
 401                     break;
 402                 }
 403             case OF_IN:
 404                 state = SvecState.GC_IN;
 405                 if (obj instanceof Gc) {
 406                     builder.setGc((Gc) obj);
 407                     break;
 408                 }
 409             case GC_IN:
 410                 state = SvecState.XRO_IN;
 411                 if (obj instanceof Xro) {
 412                     builder.setXro((Xro) obj);
 413                     break;
 414                 }
 415             case XRO_IN:
 416                 state = SvecState.METRIC_IN;
 417                 if (obj instanceof Metric) {
 418                     metrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
 419                     state = SvecState.XRO_IN;
 420                     break;
 421                 }
 422             case METRIC_IN:
 423                 state = SvecState.VENDOR_INFO;
 424                 if (obj instanceof VendorInformationObject) {
 425                     viObjects.add((VendorInformationObject) obj);
 426                     state = SvecState.METRIC_IN;
 427                     break;
 428                 }
 429             case VENDOR_INFO:
 430                 state = SvecState.END;
 431                 break;
 432             case END:
 433                 break;
 434             default:
 435                 break;
 436             }
 437             if (!state.equals(SvecState.END)) {
 438                 objects.remove(0);
 439             }
 440         }
 441         if (!viObjects.isEmpty()) {
 442             builder.setVendorInformationObject(viObjects);
 443         }
 444         return builder.build();
 445     }
 446
 447     private enum SvecState {
 448         INIT, OF_IN, GC_IN, XRO_IN, METRIC_IN, VENDOR_INFO, END
 449     }
 450
 451     protected MonitoringRequest getMonitoring(final List<Object> objects) {
 452         final MonitoringRequestBuilder builder = new MonitoringRequestBuilder();
 453         if (!objects.isEmpty() && objects.get(0) instanceof Monitoring) {
 454             builder.setMonitoring((Monitoring) objects.get(0));
 455             objects.remove(0);
 456         } else {
 457             return null;
 458         }
 459         if (!objects.isEmpty() && objects.get(0) instanceof PccIdReq) {
 460             builder.setPccIdReq((PccIdReq) objects.get(0));
 461             objects.remove(0);
 462         }
 463         final List<PceIdList> pceIdList = new ArrayList<>();
 464         while(!objects.isEmpty() && objects.get(0) instanceof PceId) {
 465             pceIdList.add(new PceIdListBuilder().setPceId((PceId) objects.get(0)).build());
 466             objects.remove(0);
 467         }
 468         if (!pceIdList.isEmpty()) {
 469             builder.setPceIdList(pceIdList);
 470         }
 471         return builder.build();
 472     }
 473 }