bgp/flowspec/src/main/java/org/opendaylight/protocol/bgp/flowspec/extended/communities/RedirectIpv6EcHandler.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 package org.opendaylight.protocol.bgp.flowspec.extended.communities;
   9
  10 import com.google.common.base.Preconditions;
  11 import io.netty.buffer.ByteBuf;
  12 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
  13 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
  14 import org.opendaylight.protocol.bgp.parser.spi.extended.community.ExtendedCommunityParser;
  15 import org.opendaylight.protocol.bgp.parser.spi.extended.community.ExtendedCommunitySerializer;
  16 import org.opendaylight.protocol.util.ByteBufWriteUtil;
  17 import org.opendaylight.protocol.util.Ipv6Util;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.RedirectIpv6ExtendedCommunity;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.redirect.ipv6.extended.community.RedirectIpv6;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.redirect.ipv6.extended.community.RedirectIpv6Builder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev180329.update.attributes.extended.communities.extended.community.RedirectIpv6ExtendedCommunityCaseBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.ExtendedCommunity;
  23
  24 public final class RedirectIpv6EcHandler implements ExtendedCommunityParser, ExtendedCommunitySerializer {
  25
  26     private static final int TYPE = 128;
  27
  28     private static final int SUBTYPE = 11;
  29
  30     @Override
  31     public void serializeExtendedCommunity(final ExtendedCommunity extendedCommunity, final ByteBuf byteAggregator) {
  32         Preconditions.checkArgument(extendedCommunity instanceof RedirectIpv6ExtendedCommunity,
  33             "The extended community %s is not RedirectIpv6ExtendedCommunity type.", extendedCommunity);
  34         final RedirectIpv6 redirectIpv6 = ((RedirectIpv6ExtendedCommunity) extendedCommunity).getRedirectIpv6();
  35         byteAggregator.writeBytes(Ipv6Util.byteBufForAddress(redirectIpv6.getGlobalAdministrator()));
  36         ByteBufWriteUtil.writeUnsignedShort(redirectIpv6.getLocalAdministrator(), byteAggregator);
  37     }
  38
  39     @Override
  40     public int getType(final boolean isTransitive) {
  41         return TYPE;
  42     }
  43
  44     @Override
  45     public int getSubType() {
  46         return SUBTYPE;
  47     }
  48
  49     @Override
  50     public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer) throws BGPDocumentedException, BGPParsingException {
  51         return new RedirectIpv6ExtendedCommunityCaseBuilder().setRedirectIpv6(
  52                 new RedirectIpv6Builder()
  53                     .setGlobalAdministrator(Ipv6Util.addressForByteBuf(buffer))
  54                     .setLocalAdministrator(buffer.readUnsignedShort())
  55                     .build()).build();
  56     }
  57
  58 }