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