bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/extended/communities/RouteTargetIpv4EcHandler.java

   1 /*
   2  * Copyright (c) 2015 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.bgp.parser.impl.message.update.extended.communities;
  10
  11 import com.google.common.base.Preconditions;
  12 import io.netty.buffer.ByteBuf;
  13 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
  14 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
  15 import org.opendaylight.protocol.bgp.parser.spi.extended.community.AbstractIpv4ExtendedCommunity;
  16 import org.opendaylight.protocol.util.ByteBufWriteUtil;
  17 import org.opendaylight.protocol.util.Ipv4Util;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.ExtendedCommunity;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.RouteTargetIpv4Case;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.RouteTargetIpv4CaseBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.route.target.ipv4._case.RouteTargetIpv4;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.route.target.ipv4._case.RouteTargetIpv4Builder;
  23
  24 public final class RouteTargetIpv4EcHandler extends AbstractIpv4ExtendedCommunity {
  25
  26     private static final int SUBTYPE = 2;
  27
  28     @Override
  29     public void serializeExtendedCommunity(final ExtendedCommunity extendedCommunity, final ByteBuf byteAggregator) {
  30         Preconditions.checkArgument(extendedCommunity instanceof RouteTargetIpv4Case,
  31                 "The extended community %s is not RouteTargetAsTwoOctetCase type.", extendedCommunity);
  32         final RouteTargetIpv4 routeTarget = ((RouteTargetIpv4Case) extendedCommunity).getRouteTargetIpv4();
  33         ByteBufWriteUtil.writeIpv4Address(routeTarget.getGlobalAdministrator(), byteAggregator);
  34         ByteBufWriteUtil.writeUnsignedShort(routeTarget.getLocalAdministrator(), byteAggregator);
  35     }
  36
  37     @Override
  38     public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer) throws BGPDocumentedException, BGPParsingException {
  39         final RouteTargetIpv4 routeTarget = new RouteTargetIpv4Builder()
  40             .setGlobalAdministrator(Ipv4Util.addressForByteBuf(buffer))
  41             .setLocalAdministrator(buffer.readUnsignedShort())
  42             .build();
  43         return new RouteTargetIpv4CaseBuilder().setRouteTargetIpv4(routeTarget).build();
  44     }
  45
  46     @Override
  47     public int getSubType() {
  48         return SUBTYPE;
  49     }
  50 }