bgp/extensions/flowspec/src/main/java/org/opendaylight/protocol/bgp/flowspec/AbstractFlowspecRIBSupport.java

   1 /*
   2  * Copyright (c) 2015 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.flowspec;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.annotations.Beta;
  13 import com.google.common.collect.Iterables;
  14 import java.util.Collection;
  15 import java.util.Collections;
  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.parser.spi.PathIdUtil;
  20 import org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.PathId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.destination.DestinationType;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.Route;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.AddressFamily;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.SubsequentAddressFamily;
  27 import org.opendaylight.yangtools.yang.binding.ChildOf;
  28 import org.opendaylight.yangtools.yang.binding.DataObject;
  29 import org.opendaylight.yangtools.yang.binding.Identifiable;
  30 import org.opendaylight.yangtools.yang.binding.Identifier;
  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.NodeIdentifierWithPredicates;
  34 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  35 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  36 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
  37 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  38
  39 @Beta
  40 public abstract class AbstractFlowspecRIBSupport<
  41         T extends AbstractFlowspecNlriParser,
  42         C extends Routes & DataObject,
  43         S extends ChildOf<? super C>,
  44         R extends Route & ChildOf<? super S> & Identifiable<I>,
  45         I extends Identifier<R>> extends AbstractRIBSupport<C, S, R, I> {
  46     protected final T nlriParser;
  47
  48     protected AbstractFlowspecRIBSupport(
  49             final BindingNormalizedNodeSerializer mappingService,
  50             final Class<C> cazeClass,
  51             final Class<S> containerClass,
  52             final Class<R> listClass,
  53             final Class<? extends AddressFamily> afiClass,
  54             final Class<? extends SubsequentAddressFamily> safiClass,
  55             final QName dstContainerClassQName,
  56             final T nlriParser
  57     ) {
  58         super(mappingService, cazeClass, containerClass, listClass, afiClass, safiClass, dstContainerClassQName);
  59
  60         this.nlriParser = requireNonNull(nlriParser);
  61     }
  62
  63     @Override
  64     protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
  65         final MapEntryNode routesCont = Iterables.getOnlyElement(routes);
  66         final PathId pathId = PathIdUtil.buildPathId(routesCont, routePathIdNid());
  67         return this.nlriParser.createAdvertizedRoutesDestinationType(
  68             new Object[] {this.nlriParser.extractFlowspec(routesCont)},
  69             pathId
  70         );
  71     }
  72
  73     @Override
  74     protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
  75         final MapEntryNode routesCont = Iterables.getOnlyElement(routes);
  76         final PathId pathId = PathIdUtil.buildPathId(routesCont, routePathIdNid());
  77         return this.nlriParser.createWithdrawnDestinationType(
  78             new Object[] {this.nlriParser.extractFlowspec(Iterables.getOnlyElement(routes))},
  79             pathId
  80         );
  81     }
  82
  83     @Override
  84     protected final Collection<NodeIdentifierWithPredicates> processDestination(
  85         final DOMDataTreeWriteTransaction tx,
  86         final YangInstanceIdentifier routesPath,
  87         final ContainerNode destination,
  88         final ContainerNode attributes,
  89         final ApplyRoute function
  90     ) {
  91         if (destination == null) {
  92             return Collections.emptyList();
  93         }
  94         final YangInstanceIdentifier base = routesYangInstanceIdentifier(routesPath);
  95
  96         final Optional<DataContainerChild<? extends PathArgument, ?>> maybePathIdLeaf
  97                 = destination.getChild(routePathIdNid());
  98         final String routeKeyValue = this.nlriParser.stringNlri(destination);
  99         final NodeIdentifierWithPredicates routeKey = PathIdUtil.createNidKey(routeQName(), routeKeyQName(),
 100                 pathIdQName(), routeKeyValue, maybePathIdLeaf);
 101         function.apply(tx, base, routeKey, destination, attributes);
 102
 103         return Collections.singletonList(routeKey);
 104     }
 105 }