bgp/openconfig-rp-statement/src/main/java/org/opendaylight/protocol/bgp/openconfig/routing/policy/statement/conditions/MatchExtCommunitySetHandler.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.openconfig.routing.policy.statement.conditions;
   9
  10 import java.util.Collections;
  11 import java.util.List;
  12 import org.apache.commons.lang3.StringUtils;
  13 import org.opendaylight.mdsal.binding.api.DataBroker;
  14 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.RouteEntryBaseAttributes;
  15 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.policy.condition.BgpConditionsPolicy;
  16 import org.opendaylight.protocol.bgp.openconfig.routing.policy.statement.AbstractExtCommunityHandler;
  17 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryExportParameters;
  18 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryImportParameters;
  19 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.policy.rev151009.bgp.match.conditions.MatchExtCommunitySet;
  20 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.AfiSafiType;
  21 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.policy.types.rev151009.MatchSetOptionsType;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.ExtendedCommunities;
  24
  25 /**
  26  * Math a set of External Communities (ALL, ANY, INVERT).
  27  */
  28 public final class MatchExtCommunitySetHandler extends AbstractExtCommunityHandler
  29         implements BgpConditionsPolicy<MatchExtCommunitySet, List<ExtendedCommunities>> {
  30
  31     public MatchExtCommunitySetHandler(final DataBroker databroker) {
  32         super(databroker);
  33     }
  34
  35     private boolean matchCondition(final List<ExtendedCommunities> extendedCommunities,
  36             final String matchExtCommunitySetName, final MatchSetOptionsType matchSetOptions) {
  37
  38         final String setKey = StringUtils
  39                 .substringBetween(matchExtCommunitySetName, "=\"", "\"");
  40         final List<ExtendedCommunities> extCommunityfilter = this.extCommunitySets.getUnchecked(setKey);
  41
  42         if (extCommunityfilter == null || extCommunityfilter.isEmpty()) {
  43             return false;
  44         }
  45
  46         List<ExtendedCommunities> extCommList;
  47         if (extendedCommunities == null) {
  48             extCommList = Collections.emptyList();
  49         } else {
  50             extCommList = extendedCommunities;
  51         }
  52
  53
  54         if (matchSetOptions.equals(MatchSetOptionsType.ALL)) {
  55             return extCommList.containsAll(extCommunityfilter)
  56                     && extCommunityfilter.containsAll(extCommList);
  57         }
  58         final boolean noneInCommon = Collections.disjoint(extCommList, extCommunityfilter);
  59         if (matchSetOptions.equals(MatchSetOptionsType.ANY)) {
  60             return !noneInCommon;
  61         }
  62         //(matchSetOptions.equals(MatchSetOptionsType.INVERT))
  63         return noneInCommon;
  64     }
  65
  66     @Override
  67     public boolean matchImportCondition(
  68             final Class<? extends AfiSafiType> afiSafi,
  69             final RouteEntryBaseAttributes routeEntryInfo,
  70             final BGPRouteEntryImportParameters routeEntryImportParameters,
  71             final List<ExtendedCommunities> extendedCommunities,
  72             final MatchExtCommunitySet conditions) {
  73         return matchCondition(extendedCommunities, conditions.getExtCommunitySet(),
  74                 conditions.getMatchSetOptions());
  75     }
  76
  77     @Override
  78     public boolean matchExportCondition(
  79             final Class<? extends AfiSafiType> afiSafi,
  80             final RouteEntryBaseAttributes routeEntryInfo,
  81             final BGPRouteEntryExportParameters routeEntryExportParameters,
  82             final List<ExtendedCommunities> extendedCommunities,
  83             final MatchExtCommunitySet conditions) {
  84         return matchCondition(extendedCommunities, conditions.getExtCommunitySet(),
  85                 conditions.getMatchSetOptions());
  86     }
  87
  88     @Override
  89     public List<ExtendedCommunities> getConditionParameter(final Attributes attributes) {
  90         return attributes.getExtendedCommunities();
  91     }
  92 }