pcep/ietf-stateful02/src/main/java/org/opendaylight/protocol/pcep/ietf/stateful02/Stateful02PCRequestMessageParser.java

   1 /*
   2  * Copyright (c) 2014 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.ietf.stateful02;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.collect.Lists;
  12 import io.netty.buffer.ByteBuf;
  13 import java.util.List;
  14 import org.opendaylight.protocol.pcep.impl.message.PCEPRequestMessageParser;
  15 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
  16 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
  17 import org.opendaylight.protocol.pcep.spi.VendorInformationObjectRegistry;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.P2p1;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.P2p1Builder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.lsp.object.Lsp;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.classtype.object.ClassType;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.Xro;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.load.balancing.object.LoadBalancing;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.of.object.Of;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputation;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputationBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2p;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2pBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRoute;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRouteBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.Rro;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
  41
  42 /**
  43  * Parser for Pcreq
  44  */
  45 public final class Stateful02PCRequestMessageParser extends PCEPRequestMessageParser {
  46
  47     public Stateful02PCRequestMessageParser(final ObjectRegistry registry, final VendorInformationObjectRegistry viReg) {
  48         super(registry, viReg);
  49     }
  50
  51     @Override
  52     protected void serializeP2P(final ByteBuf buffer, final P2p p2p) {
  53         serializeObject(p2p.getEndpointsObj(), buffer);
  54         if (p2p.getAugmentation(P2p1.class) != null) {
  55             serializeObject(p2p.getAugmentation(P2p1.class).getLsp(), buffer);
  56         }
  57         final ReportedRoute rr = p2p.getReportedRoute();
  58         if (rr != null) {
  59             serializeObject(rr.getRro(), buffer);
  60             serializeObject(rr.getBandwidth(), buffer);
  61         }
  62         serializeObject(p2p.getLoadBalancing(), buffer);
  63         serializeObject(p2p.getLspa(), buffer);
  64         serializeObject(p2p.getBandwidth(), buffer);
  65         if (p2p.getMetrics() != null) {
  66             for (final Metrics m : p2p.getMetrics()) {
  67                 serializeObject(m.getMetric(), buffer);
  68             }
  69         }
  70         serializeObject(p2p.getIro(), buffer);
  71         serializeObject(p2p.getRro(), buffer);
  72         serializeObject(p2p.getXro(), buffer);
  73         serializeObject(p2p.getOf(), buffer);
  74         serializeObject(p2p.getClassType(), buffer);
  75     }
  76
  77     @Override
  78     protected SegmentComputation getSegmentComputation(final P2pBuilder builder, final List<Object> objects, final List<Message> errors,
  79             final Rp rp) {
  80         final List<Metrics> metrics = Lists.newArrayList();
  81
  82         State state = State.Init;
  83         while (!objects.isEmpty() && state != State.End) {
  84             Object obj = objects.get(0);
  85
  86             switch (state) {
  87             case Init:
  88                 state = State.LspIn;
  89                 if (obj instanceof Lsp) {
  90                     builder.addAugmentation(P2p1.class, new P2p1Builder().setLsp((Lsp) obj).build());
  91                     break;
  92                 }
  93             case LspIn:
  94                 state = State.ReportedIn;
  95                 if (obj instanceof Rro) {
  96                     final ReportedRouteBuilder rrBuilder = new ReportedRouteBuilder();
  97                     rrBuilder.setRro((Rro) obj);
  98                     objects.remove(0);
  99                     obj = objects.get(0);
 100                     if (obj instanceof Bandwidth) {
 101                         rrBuilder.setBandwidth((Bandwidth) obj);
 102                     }
 103                     break;
 104                 }
 105             case ReportedIn:
 106                 state = State.LoadBIn;
 107                 if (obj instanceof LoadBalancing) {
 108                     builder.setLoadBalancing((LoadBalancing) obj);
 109                     break;
 110                 }
 111             case LoadBIn:
 112                 state = State.LspaIn;
 113                 if (obj instanceof Lspa) {
 114                     builder.setLspa((Lspa) obj);
 115                     break;
 116                 }
 117             case LspaIn:
 118                 state = State.BandwidthIn;
 119                 if (obj instanceof Bandwidth) {
 120                     builder.setBandwidth((Bandwidth) obj);
 121                     break;
 122                 }
 123             case BandwidthIn:
 124                 state = State.MetricIn;
 125                 if (obj instanceof Metric) {
 126                     metrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
 127                     state = State.BandwidthIn;
 128                     break;
 129                 }
 130             case MetricIn:
 131                 state = State.IroIn;
 132                 if (obj instanceof Iro) {
 133                     builder.setIro((Iro) obj);
 134                     break;
 135                 }
 136             case IroIn:
 137                 state = State.RroIn;
 138                 if (obj instanceof Rro) {
 139                     builder.setRro((Rro) obj);
 140                     break;
 141                 }
 142             case RroIn:
 143                 state = State.XroIn;
 144                 if (obj instanceof Xro) {
 145                     builder.setXro((Xro) obj);
 146                     break;
 147                 }
 148             case XroIn:
 149                 state = State.OfIn;
 150                 if (obj instanceof Of) {
 151                     builder.setOf((Of) obj);
 152                     break;
 153                 }
 154             case OfIn:
 155                 state = State.CtIn;
 156                 if (obj instanceof ClassType) {
 157                     final ClassType classType = (ClassType) obj;
 158                     if (!classType.isProcessingRule()) {
 159                         errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.of(rp)));
 160                     } else {
 161                         builder.setClassType(classType);
 162                     }
 163                     break;
 164                 }
 165             case CtIn:
 166                 state = State.End;
 167                 break;
 168             case End:
 169                 break;
 170             }
 171             if (!state.equals(State.End)) {
 172                 objects.remove(0);
 173             }
 174         }
 175         if (!metrics.isEmpty()) {
 176             builder.setMetrics(metrics);
 177         }
 178
 179         if (rp.isReoptimization()
 180                 && builder.getBandwidth() != null
 181                 && !builder.getReportedRoute().getBandwidth().getBandwidth().equals(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth(new byte[] { 0 }))
 182                 && builder.getReportedRoute().getRro() == null) {
 183             errors.add(createErrorMsg(PCEPErrors.RRO_MISSING, Optional.of(rp)));
 184             return null;
 185         }
 186         return new SegmentComputationBuilder().setP2p(builder.build()).build();
 187     }
 188
 189     private enum State {
 190         Init, LspIn, ReportedIn, LoadBIn, LspaIn, BandwidthIn, MetricIn, IroIn, RroIn, XroIn, OfIn, CtIn, End
 191     }
 192 }