bgp/extensions/mvpn/src/main/java/org/opendaylight/protocol/bgp/mvpn/impl/nlri/CMulticastUtil.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 package org.opendaylight.protocol.bgp.mvpn.impl.nlri;
   9
  10 import io.netty.buffer.ByteBuf;
  11 import io.netty.buffer.Unpooled;
  12 import org.opendaylight.bgp.concepts.IpAddressUtil;
  13 import org.opendaylight.bgp.concepts.RouteDistinguisherUtil;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev200120.c.multicast.grouping.CMulticast;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev200120.c.multicast.grouping.CMulticastBuilder;
  17 import org.opendaylight.yangtools.yang.common.netty.ByteBufUtils;
  18
  19 /**
  20  * Common CMulticast Handler.
  21  *
  22  * @author Claudio D. Gasparini
  23  */
  24 final class CMulticastUtil {
  25     private CMulticastUtil() {
  26         // Hidden on purpose
  27     }
  28
  29     static CMulticast parseCMulticastGrouping(final ByteBuf buffer) {
  30         return new CMulticastBuilder()
  31             .setRouteDistinguisher(RouteDistinguisherUtil.parseRouteDistinguisher(buffer))
  32             .setSourceAs(new AsNumber(ByteBufUtils.readUint32(buffer)))
  33             .setMulticastSource(IpAddressUtil.addressForByteBuf(buffer))
  34             .setMulticastGroup(MulticastGroupOpaqueUtil.multicastGroupForByteBuf(buffer))
  35             .build();
  36     }
  37
  38     static ByteBuf serializeCMulticast(final CMulticast route) {
  39         final ByteBuf nlriByteBuf = Unpooled.buffer();
  40         RouteDistinguisherUtil.serializeRouteDistinquisher(route.getRouteDistinguisher(), nlriByteBuf);
  41         nlriByteBuf.writeInt(route.getSourceAs().getValue().intValue());
  42         nlriByteBuf.writeBytes(IpAddressUtil.bytesFor(route.getMulticastSource()));
  43         MulticastGroupOpaqueUtil.bytesForMulticastGroup(route.getMulticastGroup(), nlriByteBuf);
  44         return nlriByteBuf;
  45     }
  46 }