bgp/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.Optional;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  17 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
  18 import org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.PathId;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.destination.DestinationType;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.Route;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.AddressFamily;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.SubsequentAddressFamily;
  25 import org.opendaylight.yangtools.yang.binding.DataObject;
  26 import org.opendaylight.yangtools.yang.binding.Identifier;
  27 import org.opendaylight.yangtools.yang.common.QName;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  31 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
  33 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  34
  35 @Beta
  36 public abstract class AbstractFlowspecRIBSupport<T extends AbstractFlowspecNlriParser,
  37         R extends Route, S extends Identifier> extends AbstractRIBSupport<R, S> {
  38     protected final T nlriParser;
  39
  40     protected AbstractFlowspecRIBSupport(
  41         final Class<? extends Routes> cazeClass,
  42         final Class<? extends DataObject> containerClass,
  43         final Class<? extends Route> listClass,
  44         final Class<? extends AddressFamily> afiClass,
  45         final Class<? extends SubsequentAddressFamily> safiClass,
  46         final QName dstContainerClassQName,
  47         final T nlriParser
  48     ) {
  49         super(cazeClass, containerClass, listClass, afiClass, safiClass, dstContainerClassQName);
  50
  51         this.nlriParser = requireNonNull(nlriParser);
  52     }
  53
  54     @Override
  55     protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
  56         final MapEntryNode routesCont = Iterables.getOnlyElement(routes);
  57         final PathId pathId = PathIdUtil.buildPathId(routesCont, routePathIdNid());
  58         return this.nlriParser.createAdvertizedRoutesDestinationType(
  59             new Object[] {this.nlriParser.extractFlowspec(routesCont)},
  60             pathId
  61         );
  62     }
  63
  64     @Override
  65     protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
  66         final MapEntryNode routesCont = Iterables.getOnlyElement(routes);
  67         final PathId pathId = PathIdUtil.buildPathId(routesCont, routePathIdNid());
  68         return this.nlriParser.createWithdrawnDestinationType(
  69             new Object[] {this.nlriParser.extractFlowspec(Iterables.getOnlyElement(routes))},
  70             pathId
  71         );
  72     }
  73
  74     @Override
  75     protected final void processDestination(
  76         final DOMDataWriteTransaction tx,
  77         final YangInstanceIdentifier routesPath,
  78         final ContainerNode destination,
  79         final ContainerNode attributes,
  80         final ApplyRoute function
  81     ) {
  82         if (destination != null) {
  83             final YangInstanceIdentifier base = routesPath.node(routesContainerIdentifier()).node(routeQName());
  84             final Optional<DataContainerChild<? extends PathArgument, ?>> maybePathIdLeaf
  85                     = destination.getChild(routePathIdNid());
  86             final String routeKeyValue = this.nlriParser.stringNlri(destination);
  87             final NodeIdentifierWithPredicates routeKey = PathIdUtil.createNidKey(routeQName(), routeKeyQName(),
  88                     pathIdQName(), routeKeyValue, maybePathIdLeaf);
  89             function.apply(tx, base, routeKey, destination, attributes);
  90         }
  91     }
  92 }