pcep/segment-routing/src/main/java/org/opendaylight/protocol/pcep/segment/routing02/SrPcInitiateMessageParser.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
   9 package org.opendaylight.protocol.pcep.segment.routing02;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import java.util.List;
  13 import org.opendaylight.protocol.pcep.ietf.initiated00.CInitiated00PCInitiateMessageParser;
  14 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.pcinitiate.message.pcinitiate.message.Requests;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.pcinitiate.message.pcinitiate.message.RequestsBuilder;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.Lsp;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.Srp;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.lsp.setup.type._01.rev140507.Tlvs5;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.lsp.setup.type._01.rev140507.Tlvs7;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.Ero;
  23
  24 public class SrPcInitiateMessageParser extends CInitiated00PCInitiateMessageParser {
  25
  26     public SrPcInitiateMessageParser(ObjectRegistry registry) {
  27         super(registry);
  28     }
  29
  30     @Override
  31     protected void serializeRequest(Requests req, ByteBuf buffer) {
  32         if (isSegmentRoutingPath(req.getSrp())) {
  33             serializeObject(req.getSrp(), buffer);
  34             if (req.getLsp() != null) {
  35                 serializeObject(req.getLsp(), buffer);
  36             }
  37             final Ero srEro = req.getEro();
  38             if (srEro != null) {
  39                 serializeObject(srEro, buffer);
  40             }
  41         } else {
  42             super.serializeRequest(req, buffer);
  43         }
  44     }
  45
  46     @Override
  47     protected Requests getValidRequest(List<Object> objects) {
  48         final Srp srp = (Srp) objects.get(0);
  49         if (isSegmentRoutingPath(srp)) {
  50             final RequestsBuilder builder = new RequestsBuilder();
  51             builder.setSrp(srp);
  52             objects.remove(0);
  53             builder.setLsp((Lsp) objects.get(0));
  54             objects.remove(0);
  55
  56             final Object obj = objects.get(0);
  57             if (obj instanceof Ero) {
  58                 builder.setEro((Ero) obj);
  59                 objects.remove(0);
  60             }
  61             return builder.build();
  62         }
  63         return super.getValidRequest(objects);
  64     }
  65
  66     private boolean isSegmentRoutingPath(final Srp srp) {
  67         if (srp != null && srp.getTlvs() != null) {
  68             return SrEroUtil.isPst(srp.getTlvs().getAugmentation(Tlvs5.class))
  69                     || SrEroUtil.isPst(srp.getTlvs().getAugmentation(Tlvs7.class));
  70         }
  71         return false;
  72     }
  73
  74 }