bgp/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
   9 package org.opendaylight.protocol.bgp.mvpn.impl.attributes.tunnel.identifier;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import org.opendaylight.protocol.util.Ipv4Util;
  13 import org.opendaylight.protocol.util.Ipv6Util;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pmsi.tunnel.rev180329.PAddressPMulticastGroup;
  16 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;
  17
  18 final class PAddressPMulticastGroupUtil {
  19     private PAddressPMulticastGroupUtil() {
  20         throw new UnsupportedOperationException();
  21     }
  22
  23     static void serializeIpAddress(final IpAddress ipAddress, final ByteBuf byteBuf) {
  24         if (ipAddress.getIpv4Address() != null) {
  25             byteBuf.writeBytes(Ipv4Util.bytesForAddress(ipAddress.getIpv4Address()));
  26         } else {
  27             byteBuf.writeBytes(Ipv6Util.bytesForAddress(ipAddress.getIpv6Address()));
  28         }
  29     }
  30
  31     static IpAddress parseIpAddress(final int ipLength, final ByteBuf buffer) {
  32         if (ipLength == Ipv6Util.IPV6_LENGTH) {
  33             return new IpAddress(Ipv6Util.addressForByteBuf(buffer));
  34         } else if (ipLength == Ipv4Util.IP4_LENGTH) {
  35             return new IpAddress(Ipv4Util.addressForByteBuf(buffer));
  36         }
  37         return null;
  38     }
  39
  40     static void serializeSenderPMulticastGroup(final PAddressPMulticastGroup bidir, final ByteBuf byteBuf) {
  41         serializeIpAddress(bidir.getPAddress(), byteBuf);
  42         serializeIpAddress(bidir.getPMulticastGroup(), byteBuf);
  43     }
  44
  45     static PAddressPMulticastGroup parseSenderPMulticastGroup(final ByteBuf buffer) {
  46         final int ipLength = buffer.readableBytes() / 2;
  47         final IpAddress pSenderAddress = parseIpAddress(ipLength, buffer);
  48         final IpAddress pMulticastGroup = parseIpAddress(ipLength, buffer);
  49         return new BidirPimTreeBuilder().setPAddress(pSenderAddress).setPMulticastGroup(pMulticastGroup).build();
  50     }
  51
  52 }