bgp/extensions/mvpn/src/main/java/org/opendaylight/protocol/bgp/mvpn/impl/attributes/tunnel/identifier/PAddressPMulticastGroupUtil.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.mvpn.impl.attributes.tunnel.identifier;
   9
  10 import io.netty.buffer.ByteBuf;
  11 import org.opendaylight.protocol.util.Ipv4Util;
  12 import org.opendaylight.protocol.util.Ipv6Util;
  13 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pmsi.tunnel.rev180329.PAddressPMulticastGroup;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pmsi.tunnel.rev180329.pmsi.tunnel.pmsi.tunnel.tunnel.identifier.bidir.pim.tree.BidirPimTreeBuilder;
  16
  17 final class PAddressPMulticastGroupUtil {
  18     private PAddressPMulticastGroupUtil() {
  19         // Hidden on purpose
  20     }
  21
  22     static void serializeIpAddress(final IpAddress ipAddress, final ByteBuf byteBuf) {
  23         if (ipAddress.getIpv4Address() != null) {
  24             byteBuf.writeBytes(Ipv4Util.bytesForAddress(ipAddress.getIpv4Address()));
  25         } else {
  26             byteBuf.writeBytes(Ipv6Util.bytesForAddress(ipAddress.getIpv6Address()));
  27         }
  28     }
  29
  30     static IpAddress parseIpAddress(final int ipLength, final ByteBuf buffer) {
  31         if (ipLength == Ipv6Util.IPV6_LENGTH) {
  32             return new IpAddress(Ipv6Util.addressForByteBuf(buffer));
  33         } else if (ipLength == Ipv4Util.IP4_LENGTH) {
  34             return new IpAddress(Ipv4Util.addressForByteBuf(buffer));
  35         }
  36         return null;
  37     }
  38
  39     static void serializeSenderPMulticastGroup(final PAddressPMulticastGroup bidir, final ByteBuf byteBuf) {
  40         serializeIpAddress(bidir.getPAddress(), byteBuf);
  41         serializeIpAddress(bidir.getPMulticastGroup(), byteBuf);
  42     }
  43
  44     static PAddressPMulticastGroup parseSenderPMulticastGroup(final ByteBuf buffer) {
  45         final int ipLength = buffer.readableBytes() / 2;
  46         final IpAddress pSenderAddress = parseIpAddress(ipLength, buffer);
  47         final IpAddress pMulticastGroup = parseIpAddress(ipLength, buffer);
  48         return new BidirPimTreeBuilder().setPAddress(pSenderAddress).setPMulticastGroup(pMulticastGroup).build();
  49     }
  50 }