bgp/openconfig-rp-statement/src/main/java/org/opendaylight/protocol/bgp/openconfig/routing/policy/statement/conditions/MatchOriginatorIdSetHandler.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 static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.cache.CacheBuilder;
  13 import com.google.common.cache.CacheLoader;
  14 import com.google.common.cache.LoadingCache;
  15 import java.util.Optional;
  16 import java.util.concurrent.ExecutionException;
  17 import org.apache.commons.lang3.StringUtils;
  18 import org.opendaylight.mdsal.binding.api.DataBroker;
  19 import org.opendaylight.mdsal.binding.api.ReadTransaction;
  20 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  21 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.RouteEntryBaseAttributes;
  22 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.policy.condition.BgpConditionsAugmentationPolicy;
  23 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryExportParameters;
  24 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryImportParameters;
  25 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.policy.rev151009.DefinedSets1;
  26 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.policy.rev151009.routing.policy.defined.sets.BgpDefinedSets;
  27 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.bgp.types.rev151009.AfiSafiType;
  28 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.policy.types.rev151009.MatchSetOptionsRestrictedType;
  29 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.routing.policy.rev151009.routing.policy.top.RoutingPolicy;
  30 import org.opendaylight.yang.gen.v1.http.openconfig.net.yang.routing.policy.rev151009.routing.policy.top.routing.policy.DefinedSets;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.OriginatorId;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.BgpOriginatorIdSets;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.MatchOriginatorIdSetCondition;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.originator.id.set.OriginatorIdSet;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.originator.id.set.OriginatorIdSetKey;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.routing.policy.defined.sets.bgp.defined.sets.OriginatorIdSets;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40
  41 /**
  42  * Match an Originator Id(ANY, INVERT).
  43  */
  44 public final class MatchOriginatorIdSetHandler
  45         implements BgpConditionsAugmentationPolicy<MatchOriginatorIdSetCondition, OriginatorId> {
  46     private static final InstanceIdentifier<OriginatorIdSets> ORIGINATOR_ID_SETS_IID
  47             = InstanceIdentifier.create(RoutingPolicy.class).child(DefinedSets.class)
  48             .augmentation(DefinedSets1.class).child(BgpDefinedSets.class)
  49             .augmentation(BgpOriginatorIdSets.class).child(OriginatorIdSets.class);
  50     private final DataBroker dataBroker;
  51     private final LoadingCache<String, OriginatorIdSet> sets = CacheBuilder.newBuilder()
  52             .build(new CacheLoader<String, OriginatorIdSet>() {
  53                 @Override
  54                 public OriginatorIdSet load(final String key) throws ExecutionException, InterruptedException {
  55                     return loadSets(key);
  56                 }
  57             });
  58
  59     public MatchOriginatorIdSetHandler(final DataBroker dataBroker) {
  60         this.dataBroker = requireNonNull(dataBroker);
  61     }
  62
  63     private OriginatorIdSet loadSets(final String key) throws ExecutionException, InterruptedException {
  64         final ReadTransaction tr = this.dataBroker.newReadOnlyTransaction();
  65         final Optional<OriginatorIdSet> result = tr.read(LogicalDatastoreType.CONFIGURATION,
  66                 ORIGINATOR_ID_SETS_IID.child(OriginatorIdSet.class, new OriginatorIdSetKey(key))).get();
  67         return result.orElse(null);
  68     }
  69
  70     @Override
  71     public boolean matchImportCondition(
  72             final Class<? extends AfiSafiType> afiSafi,
  73             final RouteEntryBaseAttributes routeEntryInfo,
  74             final BGPRouteEntryImportParameters routeEntryImportParameters,
  75             final OriginatorId originatorId,
  76             final MatchOriginatorIdSetCondition conditions) {
  77
  78         return matchOriginatorCondition(routeEntryInfo.getOriginatorId(), originatorId,
  79                 conditions.getMatchOriginatorIdSetCondition());
  80     }
  81
  82     @Override
  83     public boolean matchExportCondition(
  84             final Class<? extends AfiSafiType> afiSafi,
  85             final RouteEntryBaseAttributes routeEntryInfo,
  86             final BGPRouteEntryExportParameters routeEntryExportParameters,
  87             final OriginatorId originatorId,
  88             final MatchOriginatorIdSetCondition conditions) {
  89         return matchOriginatorCondition(routeEntryInfo.getOriginatorId(), originatorId,
  90                 conditions.getMatchOriginatorIdSetCondition());
  91     }
  92
  93     @Override
  94     public OriginatorId getConditionParameter(final Attributes attributes) {
  95         return attributes.getOriginatorId();
  96     }
  97
  98     private boolean matchOriginatorCondition(
  99             final Ipv4Address localOriginatorId,
 100             final OriginatorId originatorId, final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl
 101             .bgp._default.policy.rev180329.match.originator.id.set.condition.grouping
 102             .MatchOriginatorIdSetCondition condition) {
 103
 104         final OriginatorIdSet originatorIdSet = this.sets.getUnchecked(StringUtils
 105                 .substringBetween(condition.getOriginatorIdSet(), "=\"", "\""));
 106
 107         if (originatorIdSet == null) {
 108             return false;
 109         }
 110         boolean found = false;
 111         if (originatorId != null) {
 112             final Ipv4Address remOrigin = originatorId.getOriginator();
 113
 114             if (originatorIdSet.getLocal() != null && localOriginatorId.equals(remOrigin)) {
 115                 found = true;
 116             }
 117             if (!found && originatorIdSet.getOriginatorId() != null) {
 118                 found = originatorIdSet.getOriginatorId().contains(remOrigin);
 119             }
 120         }
 121         final MatchSetOptionsRestrictedType matchOption = condition.getMatchSetOptions();
 122         return matchOption.equals(MatchSetOptionsRestrictedType.ANY) && found
 123                 || matchOption.equals(MatchSetOptionsRestrictedType.INVERT) && !found;
 124     }
 125 }