bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/RouteTargetMembeshipUtil.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.rib.impl;
  10
  11 import java.util.Optional;
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.Route;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.route.target.constrain.rev180618.route.target.constrain.RouteTargetConstrainChoice;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.route.target.constrain.rev180618.route.target.constrain.route.target.constrain.choice.RouteTargetConstrainAs4ExtendedCommunityCase;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.route.target.constrain.rev180618.route.target.constrain.route.target.constrain.choice.RouteTargetConstrainDefaultCase;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.route.target.constrain.rev180618.route.target.constrain.route.target.constrain.choice.RouteTargetConstrainIpv4RouteCase;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.route.target.constrain.rev180618.route.target.constrain.route.target.constrain.choice.RouteTargetConstrainRouteCase;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.route.target.constrain.rev180618.route.target.constrain.routes.route.target.constrain.routes.RouteTargetConstrainRoute;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.RouteTarget;
  20
  21 final class RouteTargetMembeshipUtil {
  22     private RouteTargetMembeshipUtil() {
  23         throw new UnsupportedOperationException();
  24     }
  25
  26     static <R extends Route> Optional<RouteTarget> getRT(final R route) {
  27         if (!(route instanceof RouteTargetConstrainRoute)) {
  28             return Optional.empty();
  29         }
  30
  31         final RouteTargetConstrainChoice rtc = ((RouteTargetConstrainRoute) route).getRouteTargetConstrainChoice();
  32         RouteTarget rt;
  33         if (rtc instanceof RouteTargetConstrainDefaultCase) {
  34             rt = ((RouteTargetConstrainDefaultCase) rtc).getRouteTargetConstrainDefaultRoute();
  35         } else if (rtc instanceof RouteTargetConstrainAs4ExtendedCommunityCase) {
  36             rt = ((RouteTargetConstrainAs4ExtendedCommunityCase) rtc).getAs4RouteTargetExtendedCommunity();
  37         } else if (rtc instanceof RouteTargetConstrainIpv4RouteCase) {
  38             rt = ((RouteTargetConstrainIpv4RouteCase) rtc).getRouteTargetIpv4();
  39         } else {
  40             rt = ((RouteTargetConstrainRouteCase) rtc).getRouteTargetExtendedCommunity();
  41         }
  42         return Optional.of(rt);
  43     }
  44 }