bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/ApplicationPeer.java

   1 /*
   2  * Copyright (c) 2014 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.rib.impl;
   9
  10 import com.google.common.base.Preconditions;
  11 import com.google.common.net.InetAddresses;
  12 import java.util.Arrays;
  13 import java.util.Map.Entry;
  14 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  15 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  16 import org.opendaylight.protocol.bgp.rib.spi.AbstractAdjRIBs;
  17 import org.opendaylight.protocol.bgp.rib.spi.AdjRIBsIn;
  18 import org.opendaylight.protocol.bgp.rib.spi.Peer;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.UpdateBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributesBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes1;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes1Builder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes2;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes2Builder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlriBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlriBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.ApplicationRibId;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.Route;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.route.Attributes;
  34 import org.opendaylight.yangtools.yang.binding.DataObject;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 public class ApplicationPeer implements AutoCloseable, Peer, DataChangeListener {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(ApplicationPeer.class);
  42
  43     private final byte[] rawIdentifier;
  44     private final RIBImpl targetRib;
  45     private final String name;
  46
  47     public ApplicationPeer(final ApplicationRibId applicationRibId, final Ipv4Address ipAddress, final RIBImpl targetRib) {
  48         this.name = applicationRibId.getValue().toString();
  49         this.targetRib = Preconditions.checkNotNull(targetRib);
  50         this.rawIdentifier = InetAddresses.forString(ipAddress.getValue()).getAddress();
  51     }
  52
  53     @Override
  54     public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  55         final UpdateBuilder ub = new UpdateBuilder();
  56         for (final Entry<InstanceIdentifier<?>, DataObject> data : change.getCreatedData().entrySet()) {
  57             fillMpReach(ub, data);
  58         }
  59         for (final Entry<InstanceIdentifier<?>, DataObject> data : change.getUpdatedData().entrySet()) {
  60             fillMpReach(ub, data);
  61         }
  62         for (final InstanceIdentifier<?> data : change.getRemovedPaths()) {
  63             final MpUnreachNlriBuilder unreachBuilder = new MpUnreachNlriBuilder();
  64             final TablesKey key = data.firstKeyOf(Tables.class, TablesKey.class);
  65             unreachBuilder.setAfi(key.getAfi());
  66             unreachBuilder.setSafi(key.getSafi());
  67             final AbstractAdjRIBs<?,?,?> ribsIn = (AbstractAdjRIBs<?,?,?>)this.targetRib.getTable(key);
  68             ribsIn.addWith(unreachBuilder, data);
  69             ub.setPathAttributes(new PathAttributesBuilder().addAugmentation(PathAttributes2.class, new PathAttributes2Builder().setMpUnreachNlri(unreachBuilder.build()).build()).build());
  70             LOG.debug("Updating RIB with {}", ub.build());
  71             this.targetRib.updateTables(this, ub.build());
  72         }
  73
  74     }
  75
  76     private void fillMpReach(final UpdateBuilder ub, final Entry<InstanceIdentifier<?>, DataObject> data) {
  77         if (data.getValue() instanceof Route) {
  78             final Route r = (Route) data.getValue();
  79             final MpReachNlriBuilder reachBuilder = new MpReachNlriBuilder();
  80             final TablesKey key = data.getKey().firstKeyOf(Tables.class, TablesKey.class);
  81             reachBuilder.setAfi(key.getAfi());
  82             reachBuilder.setSafi(key.getSafi());
  83             final AdjRIBsIn<?,Route> ribsIn = this.targetRib.getTable(key);
  84             ribsIn.addAdvertisement(reachBuilder, (Route)data.getValue());
  85             final PathAttributesBuilder pa = new PathAttributesBuilder();
  86             pa.addAugmentation(PathAttributes1.class, new PathAttributes1Builder().setMpReachNlri(reachBuilder.build()).build());
  87             this.addAttributes(pa, r.getAttributes());
  88             pa.setCNextHop(reachBuilder.getCNextHop());
  89             ub.setPathAttributes(pa.build());
  90             LOG.debug("Updating RIB with {}", ub.build());
  91             this.targetRib.updateTables(this, ub.build());
  92         }
  93     }
  94
  95     private void addAttributes(final PathAttributesBuilder pa, final Attributes a) {
  96         if (a != null) {
  97             pa.setAggregator(a.getAggregator());
  98             pa.setAsPath(a.getAsPath());
  99             pa.setAtomicAggregate(a.getAtomicAggregate());
 100             pa.setClusterId(a.getClusterId());
 101             pa.setCommunities(a.getCommunities());
 102             pa.setExtendedCommunities(a.getExtendedCommunities());
 103             pa.setLocalPref(a.getLocalPref());
 104             pa.setMultiExitDisc(a.getMultiExitDisc());
 105             pa.setOrigin(a.getOrigin());
 106             pa.setOriginatorId(a.getOriginatorId());
 107         }
 108     }
 109
 110     @Override
 111     public String getName() {
 112         return this.name;
 113     }
 114
 115     @Override
 116     public void close() {
 117         for (final BgpTableType t : this.targetRib.getLocalTables()) {
 118             this.targetRib.clearTable(this, new TablesKey(t.getAfi(), t.getSafi()));
 119         }
 120     }
 121
 122     @Override
 123     public byte[] getRawIdentifier() {
 124         return Arrays.copyOf(this.rawIdentifier, this.rawIdentifier.length);
 125     }
 126 }