2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.bgpcep.bgp.topology.provider;
10 import java.util.ArrayList;
12 import org.opendaylight.controller.md.sal.common.api.data.DataModification;
13 import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.Route;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.route.Attributes;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.CNextHop;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv4NextHopCase;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv6NextHopCase;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv4.next.hop._case.Ipv4NextHop;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHop;
22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
26 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.Node1;
27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.Node1Builder;
28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.IgpNodeAttributesBuilder;
29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.igp.node.attributes.Prefix;
30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.igp.node.attributes.PrefixBuilder;
31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.igp.node.attributes.PrefixKey;
32 import org.opendaylight.yangtools.yang.binding.DataObject;
33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
40 abstract class AbstractReachabilityTopologyBuilder<T extends Route> extends AbstractTopologyBuilder<T> {
41 private static final Logger LOG = LoggerFactory.getLogger(AbstractReachabilityTopologyBuilder.class);
43 protected AbstractReachabilityTopologyBuilder(final DataProviderService dataProvider, final TopologyId topologyId,
44 final Class<T> idClass) {
45 super(dataProvider, topologyId, idClass);
48 private NodeId advertizingNode(final Attributes attrs) {
49 final CNextHop nh = attrs.getCNextHop();
50 if (nh instanceof Ipv4NextHopCase) {
51 final Ipv4NextHop ipv4 = ((Ipv4NextHopCase) nh).getIpv4NextHop();
53 return new NodeId(ipv4.getGlobal().getValue());
54 } else if (nh instanceof Ipv6NextHopCase) {
55 final Ipv6NextHop ipv6 = ((Ipv6NextHopCase) nh).getIpv6NextHop();
57 return new NodeId(ipv6.getGlobal().getValue());
59 LOG.warn("Unhandled next hop class {}", nh.getImplementedInterface());
64 private InstanceIdentifier<Node1> nodeInstanceId(final NodeId ni) {
65 return InstanceIdentifier.builder(getInstanceIdentifier()).child(Node.class, new NodeKey(ni)).augmentation(Node1.class).toInstance();
68 private InstanceIdentifier<Node1> ensureNodePresent(final DataModification<InstanceIdentifier<?>, DataObject> trans, final NodeId ni) {
69 final InstanceIdentifier<Node1> nii = nodeInstanceId(ni);
71 if (trans.readOperationalData(nii) == null) {
72 LOG.debug("Create a new node at {}", nii);
73 trans.putOperationalData(
75 new Node1Builder().setIgpNodeAttributes(new IgpNodeAttributesBuilder().setPrefix(new ArrayList<Prefix>()).build()).build());
81 private void removeEmptyNode(final DataModification<InstanceIdentifier<?>, DataObject> trans, final InstanceIdentifier<Node1> nii) {
82 final Node1 node = (Node1) trans.readOperationalData(nii);
83 if (node != null && node.getIgpNodeAttributes().getPrefix().isEmpty()) {
84 trans.removeOperationalData(nii);
88 protected abstract Attributes getAttributes(final T value);
90 protected abstract IpPrefix getPrefix(final T value);
93 protected final void createObject(final DataModification<InstanceIdentifier<?>, DataObject> trans, final InstanceIdentifier<T> id,
95 final NodeId ni = advertizingNode(getAttributes(value));
96 final InstanceIdentifier<Node1> nii = ensureNodePresent(trans, ni);
98 final IpPrefix prefix = getPrefix(value);
99 final PrefixKey pk = new PrefixKey(prefix);
101 trans.putOperationalData(
102 InstanceIdentifier.builder(nii).child(
103 org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.IgpNodeAttributes.class).child(
104 Prefix.class, pk).toInstance(), new PrefixBuilder().setKey(pk).setPrefix(prefix).build());
108 protected final void removeObject(final DataModification<InstanceIdentifier<?>, DataObject> trans, final InstanceIdentifier<T> id,
110 final NodeId ni = advertizingNode(getAttributes(value));
111 final InstanceIdentifier<Node1> nii = nodeInstanceId(ni);
113 final IpPrefix prefix = getPrefix(value);
114 final PrefixKey pk = new PrefixKey(prefix);
116 trans.removeOperationalData(InstanceIdentifier.builder(nii).child(
117 org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.IgpNodeAttributes.class).child(
118 Prefix.class, pk).toInstance());
120 removeEmptyNode(trans, nii);