2 * Copyright (c) 2015 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
9 package org.opendaylight.bgpcep.pcep.tunnel.provider;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.base.Preconditions;
14 import com.google.common.util.concurrent.Futures;
15 import com.google.common.util.concurrent.ListenableFuture;
16 import com.google.common.util.concurrent.MoreExecutors;
17 import java.util.List;
18 import java.util.Optional;
19 import java.util.concurrent.ExecutionException;
20 import org.opendaylight.bgpcep.pcep.topology.spi.AbstractInstructionExecutor;
21 import org.opendaylight.bgpcep.programming.topology.TopologyProgrammingUtil;
22 import org.opendaylight.mdsal.binding.api.DataBroker;
23 import org.opendaylight.mdsal.binding.api.ReadTransaction;
24 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.AdministrativeStatus;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.Arguments2;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.Arguments2Builder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.PcepCreateP2pTunnelInput1;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.LspBuilder;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.bandwidth.object.BandwidthBuilder;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.classtype.object.ClassTypeBuilder;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.AddressFamily;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.Ipv4CaseBuilder;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.Ipv6CaseBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.ipv4._case.Ipv4Builder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.address.family.ipv6._case.Ipv6Builder;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.endpoints.object.EndpointsObjBuilder;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.lspa.object.LspaBuilder;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev181109.AddLspInput;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev181109.AddLspInputBuilder;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev181109.NetworkTopologyPcepService;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev181109.OperationResult;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev181109.add.lsp.args.Arguments;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev181109.add.lsp.args.ArgumentsBuilder;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.pcep.programming.rev181109.PcepCreateP2pTunnelInput;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.programming.rev130930.TpReference;
50 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
51 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
52 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
53 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
54 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
55 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
56 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.TerminationPoint1;
57 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.termination.point.attributes.igp.termination.point.attributes.TerminationPointType;
58 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.nt.l3.unicast.igp.topology.rev131021.igp.termination.point.attributes.igp.termination.point.attributes.termination.point.type.Ip;
59 import org.opendaylight.yangtools.yang.binding.DataObject;
60 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
61 import org.opendaylight.yangtools.yang.common.RpcResult;
63 final class CreateTunnelInstructionExecutor extends AbstractInstructionExecutor {
64 private final DataBroker dataProvider;
65 private final NetworkTopologyPcepService topologyService;
66 private final PcepCreateP2pTunnelInput p2pTunnelInput;
68 CreateTunnelInstructionExecutor(final PcepCreateP2pTunnelInput p2pTunnelInput, final DataBroker dataProvider,
69 final NetworkTopologyPcepService topologyService) {
70 super(p2pTunnelInput);
71 this.p2pTunnelInput = p2pTunnelInput;
72 this.dataProvider = dataProvider;
73 this.topologyService = topologyService;
76 private static void checkLinkIsnotExistent(final InstanceIdentifier<Topology> tii,
77 final AddLspInputBuilder addLspInput, final ReadTransaction rt) {
78 final InstanceIdentifier<Link> lii = NodeChangedListener.linkIdentifier(tii, addLspInput.getNode(),
79 addLspInput.getName());
81 Preconditions.checkState(!rt.read(LogicalDatastoreType.OPERATIONAL, lii).get().isPresent());
82 } catch (final InterruptedException | ExecutionException e) {
83 throw new IllegalStateException("Failed to ensure link existence.", e);
87 private static AddressFamily buildAddressFamily(final TerminationPoint sp, final TerminationPoint dp) {
88 // We need the IGP augmentation -- it has IP addresses
89 final TerminationPoint1 sp1 = requireNonNull(sp.augmentation(TerminationPoint1.class));
90 final TerminationPoint1 dp1 = requireNonNull(dp.augmentation(TerminationPoint1.class));
93 final TerminationPointType spt = sp1.getIgpTerminationPointAttributes().getTerminationPointType();
94 final TerminationPointType dpt = dp1.getIgpTerminationPointAttributes().getTerminationPointType();
96 // The types have to match
97 Preconditions.checkArgument(spt.getImplementedInterface().equals(dpt.getImplementedInterface()));
99 // And they have to actually be Ip
100 final Ip sips = (Ip) spt;
101 final Ip dips = (Ip) dpt;
104 * Now a bit of magic. We need to find 'like' addresses, e.g. both
105 * IPv4 or both IPv6. We are in IPv6-enabled world now, so let's
108 Optional<AddressFamily> ret = findIpv6(sips.getIpAddress(), dips.getIpAddress());
109 if (!ret.isPresent()) {
110 ret = findIpv4(sips.getIpAddress(), dips.getIpAddress());
113 // We need to have a ret now
114 Preconditions.checkArgument(ret != null, "Failed to find like Endpoint addresses");
119 private static Optional<AddressFamily> findIpv4(final List<IpAddress> srcs, final List<IpAddress> dsts) {
120 for (final IpAddress sc : srcs) {
121 if (sc.getIpv4Address() != null) {
122 for (final IpAddress dc : dsts) {
123 if (dc.getIpv4Address() != null) {
124 return Optional.of(new Ipv4CaseBuilder().setIpv4(new Ipv4Builder()
125 .setSourceIpv4Address(new Ipv4AddressNoZone(sc.getIpv4Address()))
126 .setDestinationIpv4Address(new Ipv4AddressNoZone(dc.getIpv4Address()))
133 return Optional.empty();
136 private static Optional<AddressFamily> findIpv6(final List<IpAddress> srcs, final List<IpAddress> dsts) {
137 for (final IpAddress sc : srcs) {
138 if (sc.getIpv6Address() != null) {
139 for (final IpAddress dc : dsts) {
140 if (dc.getIpv6Address() != null) {
141 return Optional.of(new Ipv6CaseBuilder().setIpv6(new Ipv6Builder()
142 .setSourceIpv6Address(new Ipv6AddressNoZone(sc.getIpv6Address()))
143 .setDestinationIpv6Address(new Ipv6AddressNoZone(dc.getIpv6Address()))
150 return Optional.empty();
154 protected ListenableFuture<OperationResult> invokeOperation() {
155 try (ReadTransaction transaction = this.dataProvider.newReadOnlyTransaction()) {
156 AddLspInput addLspInput = createAddLspInput(transaction);
158 return Futures.transform(
159 this.topologyService.addLsp(addLspInput),
160 RpcResult::getResult, MoreExecutors.directExecutor());
164 private AddLspInput createAddLspInput(final ReadTransaction transaction) {
165 final InstanceIdentifier<Topology> tii = TopologyProgrammingUtil.topologyForInput(this.p2pTunnelInput);
166 final TpReader dr = new TpReader(transaction, tii, this.p2pTunnelInput.getDestination());
167 final TerminationPoint dp = requireNonNull(dr.getTp());
169 final TpReader sr = new TpReader(transaction, tii, this.p2pTunnelInput.getSource());
170 final TerminationPoint sp = requireNonNull(sr.getTp());
172 final Node sn = requireNonNull(sr.getNode());
173 final AddLspInputBuilder ab = new AddLspInputBuilder();
174 ab.setNode(requireNonNull(TunelProgrammingUtil.supportingNode(sn)));
175 ab.setName(this.p2pTunnelInput.getSymbolicPathName());
177 checkLinkIsnotExistent(tii, ab, transaction);
179 ab.setArguments(buildArguments(sp, dp));
183 private Arguments buildArguments(final TerminationPoint sp, final TerminationPoint dp) {
184 final ArgumentsBuilder args = new ArgumentsBuilder();
185 if (this.p2pTunnelInput.getBandwidth() != null) {
186 args.setBandwidth(new BandwidthBuilder().setBandwidth(this.p2pTunnelInput.getBandwidth()).build());
188 if (this.p2pTunnelInput.getClassType() != null) {
189 args.setClassType(new ClassTypeBuilder().setClassType(this.p2pTunnelInput.getClassType()).build());
191 args.setEndpointsObj(new EndpointsObjBuilder().setAddressFamily(buildAddressFamily(sp, dp)).build());
192 args.setEro(TunelProgrammingUtil.buildEro(this.p2pTunnelInput.getExplicitHops()));
193 args.setLspa(new LspaBuilder(this.p2pTunnelInput).build());
195 final AdministrativeStatus adminStatus = this.p2pTunnelInput.augmentation(PcepCreateP2pTunnelInput1.class)
196 .getAdministrativeStatus();
197 if (adminStatus != null) {
198 args.addAugmentation(Arguments2.class, new Arguments2Builder().setLsp(new LspBuilder()
199 .setAdministrative(adminStatus == AdministrativeStatus.Active).build()).build());
204 private static final class TpReader {
205 private final ReadTransaction rt;
206 private final InstanceIdentifier<Node> nii;
207 private final InstanceIdentifier<TerminationPoint> tii;
209 TpReader(final ReadTransaction rt, final InstanceIdentifier<Topology> topo, final TpReference ref) {
210 this.rt = requireNonNull(rt);
212 this.nii = topo.child(Node.class, new NodeKey(ref.getNode()));
213 this.tii = this.nii.child(TerminationPoint.class, new TerminationPointKey(ref.getTp()));
216 private DataObject read(final InstanceIdentifier<?> id) {
218 return this.rt.read(LogicalDatastoreType.OPERATIONAL, id).get().get();
219 } catch (final InterruptedException | ExecutionException e) {
220 throw new IllegalStateException("Failed to read data.", e);
224 private Node getNode() {
225 return (Node) read(this.nii);
228 private TerminationPoint getTp() {
229 return (TerminationPoint) read(this.tii);