bgp/openconfig-rp-statement/src/main/java/org/opendaylight/protocol/bgp/openconfig/routing/policy/statement/SetLocalAddressAsNextHopHandler.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;
  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.policy.BGPRouteEntryExportParameters;
  14 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryImportParameters;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  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.types.rev180329.next.hop.c.next.hop.Ipv4NextHopCaseBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.ipv4.next.hop._case.Ipv4NextHopBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.SetLocalAddressAsNextHop;
  21
  22 /**
  23  * Local Address shall be set as next Hop.
  24  * https://tools.ietf.org/html/rfc4684
  25  *
  26  * @author Claudio D. Gasparini
  27  */
  28 public final class SetLocalAddressAsNextHopHandler implements BgpActionAugPolicy<SetLocalAddressAsNextHop> {
  29     private static final SetLocalAddressAsNextHopHandler INSTANCE = new SetLocalAddressAsNextHopHandler();
  30
  31     private SetLocalAddressAsNextHopHandler() {
  32
  33     }
  34
  35     public static SetLocalAddressAsNextHopHandler getInstance() {
  36         return INSTANCE;
  37     }
  38
  39     @Override
  40     public Attributes applyImportAction(
  41             final RouteEntryBaseAttributes routeEntryInfo,
  42             final BGPRouteEntryImportParameters routeBaseParameters,
  43             final Attributes attributes,
  44             final SetLocalAddressAsNextHop actions) {
  45         return setNextHop(attributes, routeEntryInfo.getOriginatorId());
  46     }
  47
  48     private Attributes setNextHop(final Attributes attributes, final Ipv4Address localAddress) {
  49         return new AttributesBuilder(attributes)
  50                 .setCNextHop(new Ipv4NextHopCaseBuilder()
  51                         .setIpv4NextHop(new Ipv4NextHopBuilder().setGlobal(localAddress).build())
  52                         .build()).build();
  53     }
  54
  55     @Override
  56     public Attributes applyExportAction(
  57             final RouteEntryBaseAttributes routeEntryInfo,
  58             final BGPRouteEntryExportParameters exportParameters,
  59             final Attributes attributes,
  60             final SetLocalAddressAsNextHop actions) {
  61         return setNextHop(attributes, routeEntryInfo.getOriginatorId());
  62     }
  63 }