bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/extended/communities/four/octect/as/specific/SourceAS4OctectHandler.java

   1 /*
   2  * Copyright (c) 2018 AT&T Intellectual Property. 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.bgp.parser.impl.message.update.extended.communities.four.octect.as.specific;
  10
  11 import com.google.common.base.Preconditions;
  12 import io.netty.buffer.ByteBuf;
  13 import org.opendaylight.protocol.bgp.parser.spi.extended.community.Abstract4OctetAsExtendedCommunity;
  14 import org.opendaylight.protocol.util.ByteBufUtils;
  15 import org.opendaylight.protocol.util.ByteBufWriteUtil;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.ExtendedCommunity;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.SourceAs4ExtendedCommunityCase;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.SourceAs4ExtendedCommunityCaseBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.source.as._4.extended.community._case.SourceAs4ExtendedCommunityBuilder;
  21
  22 public final class SourceAS4OctectHandler extends Abstract4OctetAsExtendedCommunity {
  23     private static final short SUBTYPE = 209;
  24     private static final int LOCAL_ADMIN = 0;
  25     private static final short LOCAL_LENGTH = 2;
  26
  27     @Override
  28     public ExtendedCommunity parseExtendedCommunity(final ByteBuf body) {
  29         final SourceAs4ExtendedCommunityBuilder builder = new SourceAs4ExtendedCommunityBuilder();
  30         builder.setGlobalAdministrator(new AsNumber(ByteBufUtils.readUint32(body)));
  31         body.skipBytes(LOCAL_LENGTH);
  32         return new SourceAs4ExtendedCommunityCaseBuilder().setSourceAs4ExtendedCommunity(
  33                 builder.build()).build();
  34     }
  35
  36     @Override
  37     public void serializeExtendedCommunity(final ExtendedCommunity extendedCommunity, final ByteBuf body) {
  38         Preconditions.checkArgument(extendedCommunity instanceof SourceAs4ExtendedCommunityCase,
  39                 "The extended community %s is not SourceAs4ExtendedCommunityCase type.",
  40                 extendedCommunity);
  41
  42         body.writeInt(((SourceAs4ExtendedCommunityCase) extendedCommunity).getSourceAs4ExtendedCommunity()
  43                 .getGlobalAdministrator().getValue().intValue());
  44         ByteBufWriteUtil.writeUnsignedShort(LOCAL_ADMIN, body);
  45     }
  46
  47     @Override
  48     public int getSubType() {
  49         return SUBTYPE;
  50     }
  51 }