bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/extended/communities/RouteOriginAsTwoOctetEcHandler.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.parser.impl.message.update.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.AbstractTwoOctetAsExtendedCommunity;
  15 import org.opendaylight.protocol.util.ByteArray;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.ShortAsNumber;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.ExtendedCommunity;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.RouteOriginExtendedCommunityCase;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.RouteOriginExtendedCommunityCaseBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.route.origin.extended.community._case.RouteOriginExtendedCommunity;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.extended.community.extended.community.route.origin.extended.community._case.RouteOriginExtendedCommunityBuilder;
  22 import org.opendaylight.yangtools.yang.common.Uint32;
  23
  24 public final class RouteOriginAsTwoOctetEcHandler extends AbstractTwoOctetAsExtendedCommunity {
  25
  26     private static final int SUBTYPE = 3;
  27
  28     @Override
  29     public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
  30             throws BGPDocumentedException, BGPParsingException {
  31         final RouteOriginExtendedCommunity targetOrigin = new RouteOriginExtendedCommunityBuilder()
  32             .setGlobalAdministrator(new ShortAsNumber(Uint32.valueOf(buffer.readUnsignedShort())))
  33             .setLocalAdministrator(ByteArray.readBytes(buffer, AS_LOCAL_ADMIN_LENGTH))
  34             .build();
  35         return new RouteOriginExtendedCommunityCaseBuilder().setRouteOriginExtendedCommunity(targetOrigin).build();
  36     }
  37
  38     @Override
  39     public void serializeExtendedCommunity(final ExtendedCommunity extendedCommunity, final ByteBuf byteAggregator) {
  40         Preconditions.checkArgument(extendedCommunity instanceof RouteOriginExtendedCommunityCase,
  41                 "The extended community %s is not RouteOriginExtendedCommunity type.",
  42                 extendedCommunity);
  43         final RouteOriginExtendedCommunity routeOrigin
  44                 = ((RouteOriginExtendedCommunityCase) extendedCommunity).getRouteOriginExtendedCommunity();
  45         byteAggregator.writeShort(routeOrigin.getGlobalAdministrator().getValue().intValue());
  46         byteAggregator.writeBytes(routeOrigin.getLocalAdministrator());
  47     }
  48
  49     @Override
  50     public int getSubType() {
  51         return SUBTYPE;
  52     }
  53 }