bgp/openconfig-rp-statement/src/main/java/org/opendaylight/protocol/bgp/openconfig/routing/policy/statement/actions/SetOriginatorIdToAdvertizerRouterIdHandler.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.openconfig.routing.policy.statement.actions;
  10
  11 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.RouteEntryBaseAttributes;
  12 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.policy.action.BgpActionAugPolicy;
  13 import org.opendaylight.protocol.bgp.rib.spi.RouterIds;
  14 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryExportParameters;
  15 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryImportParameters;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.AttributesBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.OriginatorIdBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.PeerId;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.SetOriginatorIdToAdvertizerRouterId;
  21
  22 /**
  23  * Originator attribute shall be set to the router-id of the advertiser.
  24  * https://tools.ietf.org/html/rfc4684
  25  *
  26  * @author Claudio D. Gasparini
  27  */
  28 public final class SetOriginatorIdToAdvertizerRouterIdHandler
  29         implements BgpActionAugPolicy<SetOriginatorIdToAdvertizerRouterId> {
  30     private static SetOriginatorIdToAdvertizerRouterIdHandler INSTANCE
  31             = new SetOriginatorIdToAdvertizerRouterIdHandler();
  32
  33     private SetOriginatorIdToAdvertizerRouterIdHandler() {
  34
  35     }
  36
  37     public static SetOriginatorIdToAdvertizerRouterIdHandler getInstance() {
  38         return INSTANCE;
  39     }
  40
  41     @Override
  42     public Attributes applyImportAction(
  43             final RouteEntryBaseAttributes routeEntryInfo,
  44             final BGPRouteEntryImportParameters routeBaseParameters,
  45             final Attributes attributes,
  46             final SetOriginatorIdToAdvertizerRouterId actions) {
  47         return setOriginatorId(attributes, routeBaseParameters.getFromPeerId());
  48     }
  49
  50     private Attributes setOriginatorId(final Attributes attributes, final PeerId peerId) {
  51         if (attributes.getOriginatorId() != null) {
  52             return attributes;
  53         }
  54         return new AttributesBuilder(attributes)
  55                 .setOriginatorId(new OriginatorIdBuilder()
  56                         .setOriginator(RouterIds.inetFromPeerId(peerId)).build()).build();
  57     }
  58
  59     @Override
  60     public Attributes applyExportAction(
  61             final RouteEntryBaseAttributes routeEntryInfo,
  62             final BGPRouteEntryExportParameters routeBaseParameters,
  63             final Attributes attributes,
  64             final SetOriginatorIdToAdvertizerRouterId actions) {
  65         return setOriginatorId(attributes, routeBaseParameters.getFromPeerId());
  66     }
  67 }