bgp/extensions/mvpn/src/main/java/org/opendaylight/protocol/bgp/mvpn/impl/AbstractMvpnRIBSupport.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 package org.opendaylight.protocol.bgp.mvpn.impl;
   9
  10 import com.google.common.collect.ImmutableCollection;
  11 import com.google.common.collect.ImmutableSet;
  12 import java.util.ArrayList;
  13 import java.util.Collection;
  14 import java.util.Collections;
  15 import java.util.List;
  16 import java.util.Optional;
  17 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  18 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
  19 import org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev200120.McastVpnSubsequentAddressFamily;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev200120.MvpnRoutes;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev200120.mvpn.MvpnChoice;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.mvpn.rev200120.mvpn.routes.MvpnRoute;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.Tables;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.AddressFamily;
  27 import org.opendaylight.yangtools.yang.binding.BindingObject;
  28 import org.opendaylight.yangtools.yang.binding.ChildOf;
  29 import org.opendaylight.yangtools.yang.binding.ChoiceIn;
  30 import org.opendaylight.yangtools.yang.binding.DataObject;
  31 import org.opendaylight.yangtools.yang.common.QName;
  32 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  33 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  34 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  35 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  36 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  37 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
  38 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
  39 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
  40 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 /**
  45  * Abstract Mvpn RIBSupport.
  46  *
  47  * @author Claudio D. Gasparini
  48  */
  49 abstract class AbstractMvpnRIBSupport<C extends Routes & DataObject & ChoiceIn<Tables>,
  50         S extends ChildOf<? super C> & MvpnRoutes> extends AbstractRIBSupport<C, S, MvpnRoute> {
  51     private static final Logger LOG = LoggerFactory.getLogger(AbstractMvpnRIBSupport.class);
  52     private final NodeIdentifier nlriRoutesList;
  53     private final ImmutableCollection<Class<? extends BindingObject>> cacheableNlriObjects;
  54
  55     /**
  56      * Default constructor. Requires the QName of the container augmented under the routes choice
  57      * node in instantiations of the rib grouping. It is assumed that this container is defined by
  58      * the same model which populates it with route grouping instantiation, and by extension with
  59      * the route attributes container.
  60      *
  61      * @param mappingService     Serialization service
  62      * @param cazeClass          Binding class of the AFI/SAFI-specific case statement, must not be null
  63      * @param afiClass           address Family Class
  64      * @param destContainerQname destination container Qname
  65      * @param destListQname      destinations list Qname
  66      */
  67     AbstractMvpnRIBSupport(
  68             final BindingNormalizedNodeSerializer mappingService,
  69             final Class<C> cazeClass,
  70             final Class<S> containerClass,
  71             final Class<? extends AddressFamily> afiClass,
  72             final QName destContainerQname,
  73             final QName destListQname) {
  74         super(mappingService, cazeClass, containerClass, MvpnRoute.class, afiClass,
  75                 McastVpnSubsequentAddressFamily.class, destContainerQname);
  76         this.nlriRoutesList = NodeIdentifier.create(destListQname);
  77         this.cacheableNlriObjects = ImmutableSet.of(cazeClass);
  78
  79     }
  80
  81     @Override
  82     public final ImmutableCollection<Class<? extends BindingObject>> cacheableNlriObjects() {
  83         return this.cacheableNlriObjects;
  84     }
  85
  86     final MvpnChoice extractMvpnChoice(final DataContainerNode<? extends PathArgument> route) {
  87         final DataObject nn = this.mappingService.fromNormalizedNode(this.routeDefaultYii, route).getValue();
  88         return ((MvpnRoute) nn).getMvpnChoice();
  89     }
  90
  91     @Override
  92     protected final Collection<NodeIdentifierWithPredicates> processDestination(
  93             final DOMDataTreeWriteTransaction tx,
  94             final YangInstanceIdentifier routesPath,
  95             final ContainerNode destination,
  96             final ContainerNode attributes,
  97             final ApplyRoute function) {
  98         if (destination != null) {
  99             final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes = destination
 100                     .getChild(this.nlriRoutesList);
 101             if (maybeRoutes.isPresent()) {
 102                 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
 103                 if (routes instanceof UnkeyedListNode) {
 104                     final YangInstanceIdentifier base = routesYangInstanceIdentifier(routesPath);
 105                     final Collection<UnkeyedListEntryNode> routesList = ((UnkeyedListNode) routes).getValue();
 106                     final List<NodeIdentifierWithPredicates> keys = new ArrayList<>(routesList.size());
 107                     for (final UnkeyedListEntryNode mvpnDest : routesList) {
 108                         final NodeIdentifierWithPredicates routeKey = createRouteKey(mvpnDest);
 109                         function.apply(tx, base, routeKey, mvpnDest, attributes);
 110                         keys.add(routeKey);
 111                     }
 112                     return keys;
 113                 }
 114                 LOG.warn("Routes {} are not a map", routes);
 115             }
 116         }
 117         return Collections.emptyList();
 118     }
 119
 120     abstract NodeIdentifierWithPredicates createRouteKey(UnkeyedListEntryNode mvpn);
 121 }