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         if (p2p.getEndpointsObj() != null) {
  54             serializeObject(p2p.getEndpointsObj(), buffer);
  55         }
  56         if (p2p.getAugmentation(P2p1.class) != null && p2p.getAugmentation(P2p1.class).getLsp() != null) {
  57             serializeObject(p2p.getAugmentation(P2p1.class).getLsp(), buffer);
  58         }
  59         if (p2p.getReportedRoute() != null) {
  60             final ReportedRoute rr = p2p.getReportedRoute();
  61             if (rr.getRro() != null) {
  62                 serializeObject(rr.getRro(), buffer);
  63             }
  64             if (rr.getBandwidth() != null) {
  65                 serializeObject(rr.getBandwidth(), buffer);
  66             }
  67         }
  68         if (p2p.getLoadBalancing() != null) {
  69             serializeObject(p2p.getLoadBalancing(), buffer);
  70         }
  71         if (p2p.getLspa() != null) {
  72             serializeObject(p2p.getLspa(), buffer);
  73         }
  74         if (p2p.getBandwidth() != null) {
  75             serializeObject(p2p.getBandwidth(), buffer);
  76         }
  77         if (p2p.getMetrics() != null) {
  78             for (final Metrics m : p2p.getMetrics()) {
  79                 serializeObject(m.getMetric(), buffer);
  80             }
  81         }
  82         if (p2p.getIro() != null) {
  83             serializeObject(p2p.getIro(), buffer);
  84         }
  85         if (p2p.getRro() != null) {
  86             serializeObject(p2p.getRro(), buffer);
  87         }
  88         if (p2p.getXro() != null) {
  89             serializeObject(p2p.getXro(), buffer);
  90         }
  91         if (p2p.getOf() != null) {
  92             serializeObject(p2p.getOf(), buffer);
  93         }
  94         if (p2p.getClassType() != null) {
  95             serializeObject(p2p.getClassType(), buffer);
  96         }
  97     }
  98
  99     @Override
 100     protected SegmentComputation getSegmentComputation(final P2pBuilder builder, final List<Object> objects, final List<Message> errors,
 101             final Rp rp) {
 102         final List<Metrics> metrics = Lists.newArrayList();
 103
 104         State state = State.Init;
 105         while (!objects.isEmpty() && state != State.End) {
 106             Object obj = objects.get(0);
 107
 108             switch (state) {
 109             case Init:
 110                 state = State.LspIn;
 111                 if (obj instanceof Lsp) {
 112                     builder.addAugmentation(P2p1.class, new P2p1Builder().setLsp((Lsp) obj).build());
 113                     break;
 114                 }
 115             case LspIn:
 116                 state = State.ReportedIn;
 117                 if (obj instanceof Rro) {
 118                     final ReportedRouteBuilder rrBuilder = new ReportedRouteBuilder();
 119                     rrBuilder.setRro((Rro) obj);
 120                     objects.remove(0);
 121                     obj = objects.get(0);
 122                     if (obj instanceof Bandwidth) {
 123                         rrBuilder.setBandwidth((Bandwidth) obj);
 124                     }
 125                     break;
 126                 }
 127             case ReportedIn:
 128                 state = State.LoadBIn;
 129                 if (obj instanceof LoadBalancing) {
 130                     builder.setLoadBalancing((LoadBalancing) obj);
 131                     break;
 132                 }
 133             case LoadBIn:
 134                 state = State.LspaIn;
 135                 if (obj instanceof Lspa) {
 136                     builder.setLspa((Lspa) obj);
 137                     break;
 138                 }
 139             case LspaIn:
 140                 state = State.BandwidthIn;
 141                 if (obj instanceof Bandwidth) {
 142                     builder.setBandwidth((Bandwidth) obj);
 143                     break;
 144                 }
 145             case BandwidthIn:
 146                 state = State.MetricIn;
 147                 if (obj instanceof Metric) {
 148                     metrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
 149                     state = State.BandwidthIn;
 150                     break;
 151                 }
 152             case MetricIn:
 153                 state = State.IroIn;
 154                 if (obj instanceof Iro) {
 155                     builder.setIro((Iro) obj);
 156                     break;
 157                 }
 158             case IroIn:
 159                 state = State.RroIn;
 160                 if (obj instanceof Rro) {
 161                     builder.setRro((Rro) obj);
 162                     break;
 163                 }
 164             case RroIn:
 165                 state = State.XroIn;
 166                 if (obj instanceof Xro) {
 167                     builder.setXro((Xro) obj);
 168                     break;
 169                 }
 170             case XroIn:
 171                 state = State.OfIn;
 172                 if (obj instanceof Of) {
 173                     builder.setOf((Of) obj);
 174                     break;
 175                 }
 176             case OfIn:
 177                 state = State.CtIn;
 178                 if (obj instanceof ClassType) {
 179                     final ClassType classType = (ClassType) obj;
 180                     if (!classType.isProcessingRule()) {
 181                         errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.of(rp)));
 182                     } else {
 183                         builder.setClassType(classType);
 184                     }
 185                     break;
 186                 }
 187             case CtIn:
 188                 state = State.End;
 189                 break;
 190             case End:
 191                 break;
 192             }
 193             if (!state.equals(State.End)) {
 194                 objects.remove(0);
 195             }
 196         }
 197         if (!metrics.isEmpty()) {
 198             builder.setMetrics(metrics);
 199         }
 200
 201         if (rp.isReoptimization()
 202                 && builder.getBandwidth() != null
 203                 && !builder.getReportedRoute().getBandwidth().getBandwidth().equals(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth(new byte[] { 0 }))
 204                 && builder.getReportedRoute().getRro() == null) {
 205             errors.add(createErrorMsg(PCEPErrors.RRO_MISSING, Optional.of(rp)));
 206             return null;
 207         }
 208         return new SegmentComputationBuilder().setP2p(builder.build()).build();
 209     }
 210
 211     private enum State {
 212         Init, LspIn, ReportedIn, LoadBIn, LspaIn, BandwidthIn, MetricIn, IroIn, RroIn, XroIn, OfIn, CtIn, End
 213     }
 214 }