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