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.collect.Lists;
  11
  12 import io.netty.buffer.ByteBuf;
  13
  14 import java.util.List;
  15
  16 import org.opendaylight.protocol.pcep.impl.message.PCEPRequestMessageParser;
  17 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
  18 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.P2p1;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.P2p1Builder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.lsp.object.Lsp;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.BandwidthBuilder;
  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.exclude.route.object.Xro;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.load.balancing.object.LoadBalancing;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.of.object.Of;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputation;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.SegmentComputationBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2p;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.P2pBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRoute;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcreq.message.pcreq.message.requests.segment.computation.p2p.ReportedRouteBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.Rro;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
  43
  44 /**
  45  * Parser for Pcreq
  46  */
  47 public final class Stateful02PCRequestMessageParser extends PCEPRequestMessageParser {
  48
  49     public Stateful02PCRequestMessageParser(final ObjectRegistry registry) {
  50         super(registry);
  51     }
  52
  53     @Override
  54     protected void serializeP2P(final ByteBuf buffer, final P2p p2p) {
  55         if (p2p.getEndpointsObj() != null) {
  56             serializeObject(p2p.getEndpointsObj(), buffer);
  57         }
  58         if (p2p.getAugmentation(P2p1.class) != null && p2p.getAugmentation(P2p1.class).getLsp() != null) {
  59             serializeObject(p2p.getAugmentation(P2p1.class).getLsp(), buffer);
  60         }
  61         if (p2p.getReportedRoute() != null) {
  62             final ReportedRoute rr = p2p.getReportedRoute();
  63             if (rr.getRro() != null) {
  64                 serializeObject(rr.getRro(), buffer);
  65             }
  66             if (rr.getBandwidth() != null) {
  67                 serializeObject(rr.getBandwidth(), buffer);
  68             }
  69         }
  70         if (p2p.getLoadBalancing() != null) {
  71             serializeObject(p2p.getLoadBalancing(), buffer);
  72         }
  73         if (p2p.getLspa() != null) {
  74             serializeObject(p2p.getLspa(), buffer);
  75         }
  76         if (p2p.getBandwidth() != null) {
  77             serializeObject(p2p.getBandwidth(), buffer);
  78         }
  79         if (p2p.getMetrics() != null) {
  80             for (final Metrics m : p2p.getMetrics()) {
  81                 serializeObject(m.getMetric(), buffer);
  82             }
  83         }
  84         if (p2p.getIro() != null) {
  85             serializeObject(p2p.getIro(), buffer);
  86         }
  87         if (p2p.getRro() != null) {
  88             serializeObject(p2p.getRro(), buffer);
  89         }
  90         if (p2p.getXro() != null) {
  91             serializeObject(p2p.getXro(), buffer);
  92         }
  93         if (p2p.getOf() != null) {
  94             serializeObject(p2p.getOf(), buffer);
  95         }
  96         if (p2p.getClassType() != null) {
  97             serializeObject(p2p.getClassType(), buffer);
  98         }
  99     }
 100
 101     @Override
 102     protected SegmentComputation getSegmentComputation(final P2pBuilder builder, final List<Object> objects, final List<Message> errors,
 103             final Rp rp) {
 104         final List<Metrics> metrics = Lists.newArrayList();
 105
 106         State state = State.Init;
 107         while (!objects.isEmpty() && state != State.End) {
 108             Object obj = objects.get(0);
 109
 110             switch (state) {
 111             case Init:
 112                 state = State.LspIn;
 113                 if (obj instanceof Lsp) {
 114                     builder.addAugmentation(P2p1.class, new P2p1Builder().setLsp((Lsp) obj).build());
 115                     break;
 116                 }
 117             case LspIn:
 118                 state = State.ReportedIn;
 119                 if (obj instanceof Rro) {
 120                     final ReportedRouteBuilder rrBuilder = new ReportedRouteBuilder();
 121                     rrBuilder.setRro((Rro) obj);
 122                     objects.remove(0);
 123                     obj = objects.get(0);
 124                     if (obj instanceof Bandwidth) {
 125                         rrBuilder.setBandwidth((Bandwidth) obj);
 126                     }
 127                     break;
 128                 }
 129             case ReportedIn:
 130                 state = State.LoadBIn;
 131                 if (obj instanceof LoadBalancing) {
 132                     builder.setLoadBalancing((LoadBalancing) obj);
 133                     break;
 134                 }
 135             case LoadBIn:
 136                 state = State.LspaIn;
 137                 if (obj instanceof Lspa) {
 138                     builder.setLspa((Lspa) obj);
 139                     break;
 140                 }
 141             case LspaIn:
 142                 state = State.BandwidthIn;
 143                 if (obj instanceof Bandwidth) {
 144                     builder.setBandwidth((Bandwidth) obj);
 145                     break;
 146                 }
 147             case BandwidthIn:
 148                 state = State.MetricIn;
 149                 if (obj instanceof Metric) {
 150                     metrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
 151                     state = State.BandwidthIn;
 152                     break;
 153                 }
 154             case MetricIn:
 155                 state = State.IroIn;
 156                 if (obj instanceof Iro) {
 157                     builder.setIro((Iro) obj);
 158                     break;
 159                 }
 160             case IroIn:
 161                 state = State.RroIn;
 162                 if (obj instanceof Rro) {
 163                     builder.setRro((Rro) obj);
 164                     break;
 165                 }
 166             case RroIn:
 167                 state = State.XroIn;
 168                 if (obj instanceof Xro) {
 169                     builder.setXro((Xro) obj);
 170                     break;
 171                 }
 172             case XroIn:
 173                 state = State.OfIn;
 174                 if (obj instanceof Of) {
 175                     builder.setOf((Of) obj);
 176                     break;
 177                 }
 178             case OfIn:
 179                 state = State.CtIn;
 180                 if (obj instanceof ClassType) {
 181                     final ClassType classType = (ClassType) obj;
 182                     if (!classType.isProcessingRule()) {
 183                         errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, rp));
 184                     } else {
 185                         builder.setClassType(classType);
 186                     }
 187                     break;
 188                 }
 189             case CtIn:
 190                 state = State.End;
 191                 break;
 192             case End:
 193                 break;
 194             }
 195             if (!state.equals(State.End)) {
 196                 objects.remove(0);
 197             }
 198         }
 199         if (!metrics.isEmpty()) {
 200             builder.setMetrics(metrics);
 201         }
 202
 203         if (rp.isReoptimization()
 204                 && builder.getBandwidth() != null
 205                 && builder.getReportedRoute().getBandwidth().getBandwidth() != new BandwidthBuilder().setBandwidth(
 206                         new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth(new byte[] { 0 })).build()
 207                         && builder.getReportedRoute().getRro() == null) {
 208             errors.add(createErrorMsg(PCEPErrors.RRO_MISSING, rp));
 209             return null;
 210         }
 211         return new SegmentComputationBuilder().setP2p(builder.build()).build();
 212     }
 213
 214     private enum State {
 215         Init, LspIn, ReportedIn, LoadBIn, LspaIn, BandwidthIn, MetricIn, IroIn, RroIn, XroIn, OfIn, CtIn, End
 216     }
 217 }