bgp/extensions/linkstate/src/main/java/org/opendaylight/protocol/bgp/linkstate/impl/attribute/sr/binding/sid/sub/tlvs/Ipv4PrefixSidParser.java

   1 /*
   2  * Copyright (c) 2016 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.bgp.linkstate.impl.attribute.sr.binding.sid.sub.tlvs;
   9
  10 import static com.google.common.base.Preconditions.checkArgument;
  11
  12 import io.netty.buffer.ByteBuf;
  13 import io.netty.buffer.Unpooled;
  14 import org.opendaylight.protocol.bgp.linkstate.impl.attribute.sr.SrPrefixAttributesParser;
  15 import org.opendaylight.protocol.bgp.linkstate.spi.BindingSubTlvsParser;
  16 import org.opendaylight.protocol.bgp.linkstate.spi.BindingSubTlvsSerializer;
  17 import org.opendaylight.protocol.bgp.linkstate.spi.TlvUtil;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.ProtocolId;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.prefix.state.SrPrefix;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.BindingSubTlv;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.PrefixSidCase;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.PrefixSidCaseBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.prefix.sid._case.PrefixSid;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.prefix.sid._case.PrefixSidBuilder;
  25
  26 public final class Ipv4PrefixSidParser implements BindingSubTlvsParser, BindingSubTlvsSerializer {
  27     public static final int PREFIX_SID = 1158;
  28
  29     @Override
  30     public BindingSubTlv parseSubTlv(final ByteBuf slice, final ProtocolId protocolId) {
  31         final SrPrefix prefix = SrPrefixAttributesParser.parseSrPrefix(slice, protocolId);
  32         return new PrefixSidCaseBuilder()
  33                 .setPrefixSid(new PrefixSidBuilder()
  34                     .setAlgorithm(prefix.getAlgorithm())
  35                     .setFlags(prefix.getFlags())
  36                     .setSidLabelIndex(prefix.getSidLabelIndex())
  37                     .build())
  38                 .build();
  39     }
  40
  41     @Override
  42     public int getType() {
  43         return PREFIX_SID;
  44     }
  45
  46     @Override
  47     public void serializeSubTlv(final BindingSubTlv bindingSubTlv, final ByteBuf aggregator) {
  48         checkArgument(bindingSubTlv instanceof PrefixSidCase, "Wrong BindingSubTlv instance expected",
  49             bindingSubTlv);
  50         final PrefixSid prefix = ((PrefixSidCase) bindingSubTlv).getPrefixSid();
  51         final ByteBuf buffer = Unpooled.buffer();
  52         SrPrefixAttributesParser.serializePrefixAttributes(prefix.getFlags(), prefix.getAlgorithm(),
  53             prefix.getSidLabelIndex(), buffer);
  54         TlvUtil.writeTLV(getType(), buffer, aggregator);
  55     }
  56 }