bgp/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
   9 package org.opendaylight.protocol.bgp.mvpn.impl.nlri;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import io.netty.buffer.Unpooled;
  13 import org.opendaylight.bgp.concepts.IpAddressUtil;
  14 import org.opendaylight.bgp.concepts.RouteDistinguisherUtil;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.c.multicast.grouping.CMulticast;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev180417.c.multicast.grouping.CMulticastBuilder;
  18
  19 /**
  20  * Common CMulticast Handler.
  21  *
  22  * @author Claudio D. Gasparini
  23  */
  24 final class CMulticastUtil {
  25     private CMulticastUtil() {
  26         throw new UnsupportedOperationException();
  27     }
  28
  29     static CMulticast parseCMulticastGrouping(final ByteBuf buffer) {
  30         final CMulticastBuilder builder = new CMulticastBuilder();
  31         builder.setRouteDistinguisher(RouteDistinguisherUtil.parseRouteDistinguisher(buffer));
  32         builder.setSourceAs(new AsNumber(buffer.readUnsignedInt()));
  33         builder.setMulticastSource(IpAddressUtil.addressForByteBuf(buffer));
  34         builder.setMulticastGroup(MulticastGroupOpaqueUtil.multicastGroupForByteBuf(buffer));
  35         return builder.build();
  36     }
  37
  38
  39     static ByteBuf serializeCMulticast(final CMulticast route) {
  40         final ByteBuf nlriByteBuf = Unpooled.buffer();
  41         RouteDistinguisherUtil.serializeRouteDistinquisher(route.getRouteDistinguisher(), nlriByteBuf);
  42         nlriByteBuf.writeInt(route.getSourceAs().getValue().intValue());
  43         nlriByteBuf.writeBytes(IpAddressUtil.bytesFor(route.getMulticastSource()));
  44         MulticastGroupOpaqueUtil.bytesForMulticastGroup(route.getMulticastGroup(), nlriByteBuf);
  45         return nlriByteBuf;
  46     }
  47 }