bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/Ipv4AdjRIBsIn.java

   1 /*
   2  * Copyright (c) 2013 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.rib.impl;
   9
  10 import com.google.common.collect.Lists;
  11 import org.opendaylight.protocol.bgp.rib.spi.AbstractAdjRIBs;
  12 import org.opendaylight.protocol.bgp.rib.spi.AdjRIBsTransaction;
  13 import org.opendaylight.protocol.bgp.rib.spi.Peer;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.destination.destination.type.DestinationIpv4Case;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.destination.destination.type.DestinationIpv4CaseBuilder;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.destination.destination.type.destination.ipv4._case.DestinationIpv4Builder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlri;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlriBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlri;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlriBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.reach.nlri.AdvertizedRoutes;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.unreach.nlri.WithdrawnRoutes;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.routes.ipv4.routes._case.Ipv4Routes;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.routes.ipv4.routes._case.ipv4.routes.Ipv4Route;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.routes.ipv4.routes._case.ipv4.routes.Ipv4RouteBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.routes.ipv4.routes._case.ipv4.routes.Ipv4RouteKey;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.route.Attributes;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.route.AttributesBuilder;
  34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  35 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  36
  37 final class Ipv4AdjRIBsIn extends AbstractAdjRIBs<Ipv4Prefix, Ipv4Route, Ipv4RouteKey> {
  38     private final InstanceIdentifier<Ipv4Routes> routesBasePath;
  39
  40     Ipv4AdjRIBsIn(final KeyedInstanceIdentifier<Tables, TablesKey> basePath) {
  41         super(basePath);
  42         routesBasePath = basePath.builder().child(Ipv4Routes.class).build();
  43     }
  44
  45     @Override
  46     @Deprecated
  47     public KeyedInstanceIdentifier<Ipv4Route, Ipv4RouteKey> identifierForKey(final InstanceIdentifier<Tables> basePath, final Ipv4Prefix key) {
  48         return basePath.child(Ipv4Routes.class).child(Ipv4Route.class, new Ipv4RouteKey(key));
  49     }
  50
  51     @Override
  52     public KeyedInstanceIdentifier<Ipv4Route, Ipv4RouteKey> identifierForKey(final Ipv4Prefix key) {
  53         return routesBasePath.child(Ipv4Route.class, new Ipv4RouteKey(key));
  54     }
  55
  56     @Override
  57     public void addRoutes(final AdjRIBsTransaction trans, final Peer peer, final MpReachNlri nlri,
  58         final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributes attributes) {
  59         final RIBEntryData<Ipv4Prefix, Ipv4Route, Ipv4RouteKey> data = new RIBEntryData<Ipv4Prefix, Ipv4Route, Ipv4RouteKey>(peer, attributes) {
  60             @Override
  61             protected Ipv4Route getDataObject(final Ipv4Prefix key, final Ipv4RouteKey id) {
  62                 return new Ipv4RouteBuilder().setKey(id).setAttributes(new AttributesBuilder(attributes).build()).build();
  63             }
  64         };
  65
  66         for (final Ipv4Prefix id : ((DestinationIpv4Case) nlri.getAdvertizedRoutes().getDestinationType()).getDestinationIpv4().getIpv4Prefixes()) {
  67             super.add(trans, peer, id, data);
  68         }
  69     }
  70
  71     @Override
  72     public void removeRoutes(final AdjRIBsTransaction trans, final Peer peer, final MpUnreachNlri nlri) {
  73         for (final Ipv4Prefix id : ((DestinationIpv4Case) nlri.getWithdrawnRoutes().getDestinationType()).getDestinationIpv4().getIpv4Prefixes()) {
  74             super.remove(trans, peer, id);
  75         }
  76     }
  77
  78     @Override
  79     public void addAdvertisement(final MpReachNlriBuilder builder, final Ipv4Route data) {
  80         final Attributes a = data.getAttributes();
  81         if (a != null && a.getCNextHop() != null) {
  82             builder.setCNextHop(a.getCNextHop());
  83         }
  84         final AdvertizedRoutes ar = builder.getAdvertizedRoutes();
  85         if (ar == null) {
  86             builder.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(
  87                 new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(
  88                     Lists.newArrayList(data.getPrefix())).build()).build()).build());
  89         } else {
  90             ((DestinationIpv4Case) ar.getDestinationType()).getDestinationIpv4().getIpv4Prefixes().add(data.getPrefix());
  91         }
  92     }
  93
  94     @Override
  95     public void addWithdrawal(final MpUnreachNlriBuilder builder, final Ipv4Prefix id) {
  96         final WithdrawnRoutes wr = builder.getWithdrawnRoutes();
  97         if (wr == null) {
  98             builder.setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(
  99                 new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(
 100                     Lists.newArrayList(id)).build()).build()).build());
 101         } else {
 102             ((DestinationIpv4Case) wr.getDestinationType()).getDestinationIpv4().getIpv4Prefixes().add(id);
 103         }
 104     }
 105
 106     @SuppressWarnings("unchecked")
 107     @Override
 108     public KeyedInstanceIdentifier<Ipv4Route, Ipv4RouteKey> routeIdentifier(final InstanceIdentifier<?> id) {
 109         return (KeyedInstanceIdentifier<Ipv4Route, Ipv4RouteKey>)id.firstIdentifierOf(Ipv4Route.class);
 110     }
 111
 112     @Override
 113     public Ipv4Prefix keyForIdentifier(final KeyedInstanceIdentifier<Ipv4Route, Ipv4RouteKey> id) {
 114         return id.getKey().getPrefix();
 115     }
 116 }