bgp/openconfig-rp-statement/src/main/java/org/opendaylight/protocol/bgp/openconfig/routing/policy/statement/actions/NonTransitiveAttributesFilterHandler.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
   9 package org.opendaylight.protocol.bgp.openconfig.routing.policy.statement.actions;
  10
  11 import java.util.List;
  12 import java.util.stream.Collectors;
  13 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.RouteEntryBaseAttributes;
  14 import org.opendaylight.protocol.bgp.openconfig.routing.policy.spi.policy.action.BgpActionAugPolicy;
  15 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryExportParameters;
  16 import org.opendaylight.protocol.bgp.rib.spi.policy.BGPRouteEntryImportParameters;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.Attributes;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.AttributesBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.ExtendedCommunities;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.UnrecognizedAttributes;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.ExtendedCommunity;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.odl.bgp._default.policy.rev180329.NonTransitiveAttributesFilter;
  23
  24 /**
  25  * Removes non transitive attributes.
  26  */
  27 public final class NonTransitiveAttributesFilterHandler implements BgpActionAugPolicy<NonTransitiveAttributesFilter> {
  28     @Override
  29     public Attributes applyImportAction(
  30             final RouteEntryBaseAttributes routeEntryInfo,
  31             final BGPRouteEntryImportParameters routeEntryImportParameters,
  32             final Attributes attributes,
  33             final NonTransitiveAttributesFilter bgpActions) {
  34         return filterAttributes(attributes);
  35     }
  36
  37     private Attributes filterAttributes(final Attributes attributes) {
  38         final AttributesBuilder builder = new AttributesBuilder();
  39         builder.setCNextHop(attributes.getCNextHop());
  40         builder.setOrigin(attributes.getOrigin());
  41         builder.setAsPath(attributes.getAsPath());
  42         builder.setCommunities(attributes.getCommunities());
  43
  44         final List<UnrecognizedAttributes> oldAtt = attributes.getUnrecognizedAttributes();
  45         if (oldAtt != null) {
  46             builder.setUnrecognizedAttributes(attributes.getUnrecognizedAttributes().stream()
  47                     .filter(UnrecognizedAttributes::isTransitive)
  48                     .collect(Collectors.toList()));
  49         }
  50         final List<ExtendedCommunities> oldExt = attributes.getExtendedCommunities();
  51         if (oldExt != null) {
  52             builder.setExtendedCommunities(oldExt.stream()
  53                     .filter(ExtendedCommunity::isTransitive)
  54                     .collect(Collectors.toList()));
  55         }
  56         return builder.build();
  57     }
  58
  59     @Override
  60     public Attributes applyExportAction(final RouteEntryBaseAttributes routeEntryInfo,
  61             final BGPRouteEntryExportParameters routeEntryExportParameters,
  62             final Attributes attributes,
  63             final NonTransitiveAttributesFilter bgpActions) {
  64         return filterAttributes(attributes);
  65     }
  66 }