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.CIpv4NextHop;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.CIpv6NextHop;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.c.ipv4.next.hop.Ipv4NextHop;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.c.ipv6.next.hop.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, final Class<T> idClass) {
44 super(dataProvider, topologyId, idClass);
47 private NodeId advertizingNode(final Attributes attrs) {
48 final CNextHop nh = attrs.getCNextHop();
49 if (nh instanceof CIpv4NextHop) {
50 final Ipv4NextHop ipv4 = ((CIpv4NextHop) nh).getIpv4NextHop();
52 return new NodeId(ipv4.getGlobal().getValue());
53 } else if (nh instanceof CIpv6NextHop) {
54 final Ipv6NextHop ipv6 = ((CIpv6NextHop) nh).getIpv6NextHop();
56 return new NodeId(ipv6.getGlobal().getValue());
58 LOG.warn("Unhandled next hop class {}", nh.getImplementedInterface());
63 private InstanceIdentifier<Node1> nodeInstanceId(final NodeId ni) {
64 return InstanceIdentifier.builder(getInstanceIdentifier()).child(Node.class, new NodeKey(ni)).augmentation(Node1.class).toInstance();
67 private InstanceIdentifier<Node1> ensureNodePresent(final DataModification<InstanceIdentifier<?>, DataObject> trans,
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(nii, new Node1Builder().setIgpNodeAttributes(
74 new IgpNodeAttributesBuilder().setPrefix(new ArrayList<Prefix>()).build()).build());
80 private void removeEmptyNode(final DataModification<InstanceIdentifier<?>, DataObject> trans, final InstanceIdentifier<Node1> nii) {
81 final Node1 node = (Node1) trans.readOperationalData(nii);
82 if (node != null && node.getIgpNodeAttributes().getPrefix().isEmpty()) {
83 trans.removeOperationalData(nii);
87 protected abstract Attributes getAttributes(final T value);
88 protected abstract IpPrefix getPrefix(final T value);
91 protected final void createObject(final DataModification<InstanceIdentifier<?>, DataObject> trans,
92 final InstanceIdentifier<T> id, final T value) {
93 final NodeId ni = advertizingNode(getAttributes(value));
94 final InstanceIdentifier<Node1> nii = ensureNodePresent(trans, ni);
96 final IpPrefix prefix = getPrefix(value);
97 final PrefixKey pk = new PrefixKey(prefix);
99 trans.putOperationalData(InstanceIdentifier.builder(nii).
100 child(org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.IgpNodeAttributes.class).
101 child(Prefix.class, pk).toInstance(),
102 new PrefixBuilder().setKey(pk).setPrefix(prefix).build());
107 protected final void removeObject(final DataModification<InstanceIdentifier<?>, DataObject> trans,
108 final InstanceIdentifier<T> id, final T value) {
109 final NodeId ni = advertizingNode(getAttributes(value));
110 final InstanceIdentifier<Node1> nii = nodeInstanceId(ni);
112 final IpPrefix prefix = getPrefix(value);
113 final PrefixKey pk = new PrefixKey(prefix);
115 trans.removeOperationalData(InstanceIdentifier.builder(nii).
116 child(org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.node.attributes.IgpNodeAttributes.class).
117 child(Prefix.class, pk).toInstance());
119 removeEmptyNode(trans, nii);