networkmodel/src/main/java/org/opendaylight/transportpce/networkmodel/R2RLinkDiscovery.java

   1 /*
   2  * Copyright © 2016 AT&T 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.transportpce.networkmodel;
   9
  10 import static org.opendaylight.transportpce.common.StringConstants.OPENROADM_DEVICE_VERSION_1_2_1;
  11 import static org.opendaylight.transportpce.common.StringConstants.OPENROADM_DEVICE_VERSION_2_2_1;
  12
  13 import java.util.Collection;
  14 import java.util.Optional;
  15 import java.util.concurrent.ExecutionException;
  16 import java.util.stream.Collectors;
  17 import java.util.stream.Stream;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.opendaylight.mdsal.binding.api.DataBroker;
  20 import org.opendaylight.mdsal.binding.api.MountPoint;
  21 import org.opendaylight.mdsal.binding.api.ReadTransaction;
  22 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  23 import org.opendaylight.transportpce.common.Timeouts;
  24 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
  25 import org.opendaylight.transportpce.common.network.NetworkTransactionService;
  26 import org.opendaylight.transportpce.networkmodel.util.TopologyUtils;
  27 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkutils.rev170818.InitRoadmNodesInputBuilder;
  28 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210315.Network;
  29 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210315.cp.to.degree.CpToDegree;
  30 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210315.mapping.Mapping;
  31 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210315.network.Nodes;
  32 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210315.network.NodesKey;
  33 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev170929.Direction;
  34 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.OrgOpenroadmDevice;
  35 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.Protocols;
  36 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.Protocols1;
  37 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.lldp.container.lldp.NbrList;
  38 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.lldp.container.lldp.nbr.list.IfName;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NodeId;
  40 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  41 import org.opendaylight.yangtools.yang.common.Uint8;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 public class R2RLinkDiscovery {
  46
  47     private static final Logger LOG = LoggerFactory.getLogger(R2RLinkDiscovery.class);
  48
  49     private final DataBroker dataBroker;
  50     private final NetworkTransactionService networkTransactionService;
  51     private final DeviceTransactionManager deviceTransactionManager;
  52
  53     public R2RLinkDiscovery(final DataBroker dataBroker, DeviceTransactionManager deviceTransactionManager,
  54         NetworkTransactionService networkTransactionService) {
  55         this.dataBroker = dataBroker;
  56         this.deviceTransactionManager = deviceTransactionManager;
  57         this.networkTransactionService = networkTransactionService;
  58     }
  59
  60     public boolean readLLDP(NodeId nodeId, String nodeVersion) {
  61
  62         if (nodeVersion.equals(OPENROADM_DEVICE_VERSION_1_2_1)) {
  63             InstanceIdentifier<Protocols> protocolsIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
  64                     .child(Protocols.class);
  65             Optional<Protocols> protocolObject = this.deviceTransactionManager.getDataFromDevice(nodeId.getValue(),
  66                 LogicalDatastoreType.OPERATIONAL, protocolsIID, Timeouts.DEVICE_READ_TIMEOUT,
  67                 Timeouts.DEVICE_READ_TIMEOUT_UNIT);
  68             if (!protocolObject.isPresent() || (protocolObject.get().augmentation(Protocols1.class) == null)) {
  69                 LOG.warn("LLDP subtree is missing : isolated openroadm device");
  70                 return false;
  71             }
  72             NbrList nbrList = protocolObject.get().augmentation(Protocols1.class).getLldp().getNbrList();
  73             LOG.info("LLDP subtree is present. Device has {} neighbours", nbrList.getIfName().size());
  74             boolean success = true;
  75             for (IfName ifName : nbrList.nonnullIfName().values()) {
  76                 if (ifName.getRemoteSysName() == null) {
  77                     LOG.warn("LLDP subtree neighbour is empty for nodeId: {}, ifName: {}",
  78                         nodeId.getValue(),ifName.getIfName());
  79                 } else {
  80                     Optional<MountPoint> mps = this.deviceTransactionManager.getDeviceMountPoint(ifName
  81                         .getRemoteSysName());
  82                     if (!mps.isPresent()) {
  83                         LOG.warn("Neighbouring nodeId: {} is not mounted yet", ifName.getRemoteSysName());
  84                         // The controller raises a warning rather than an error because the first node to
  85                         // mount cannot see its neighbors yet. The link will be detected when processing
  86                         // the neighbor node.
  87                     } else {
  88                         if (!createR2RLink(nodeId, ifName.getIfName(), ifName.getRemoteSysName(),
  89                             ifName.getRemotePortId())) {
  90                             LOG.error("Link Creation failed between {} and {} nodes.", nodeId.getValue(),
  91                                 ifName.getRemoteSysName());
  92                             success = false;
  93                         }
  94                     }
  95                 }
  96             }
  97             return success;
  98         }
  99         else if (nodeVersion.equals(OPENROADM_DEVICE_VERSION_2_2_1)) {
 100             InstanceIdentifier<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.org.openroadm.device
 101                 .container.org.openroadm.device.Protocols> protocolsIID = InstanceIdentifier.create(org.opendaylight
 102                 .yang.gen.v1.http.org.openroadm.device.rev181019.org.openroadm.device.container
 103                 .OrgOpenroadmDevice.class).child(org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019
 104                 .org.openroadm.device.container.org.openroadm.device.Protocols.class);
 105             Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.org.openroadm.device
 106                 .container.org.openroadm.device.Protocols> protocolObject = this.deviceTransactionManager
 107                 .getDataFromDevice(nodeId.getValue(), LogicalDatastoreType.OPERATIONAL, protocolsIID,
 108                 Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
 109             if (!protocolObject.isPresent() || (protocolObject.get().augmentation(org.opendaylight.yang.gen.v1.http.org
 110                 .openroadm.lldp.rev181019.Protocols1.class) == null)) {
 111                 LOG.warn("LLDP subtree is missing : isolated openroadm device");
 112                 return false;
 113             }
 114             org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev181019.lldp.container.lldp.@Nullable NbrList nbrList
 115                 = protocolObject.get().augmentation(org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev181019
 116                 .Protocols1.class).getLldp().getNbrList();
 117             LOG.info("LLDP subtree is present. Device has {} neighbours", nbrList.getIfName().size());
 118             boolean success = true;
 119             for (org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev181019.lldp.container.lldp.nbr.list.IfName
 120                 ifName : nbrList.nonnullIfName().values()) {
 121                 if (ifName.getRemoteSysName() == null) {
 122                     LOG.warn("LLDP subtree neighbour is empty for nodeId: {}, ifName: {}",
 123                         nodeId.getValue(),ifName.getIfName());
 124                 } else {
 125                     Optional<MountPoint> mps = this.deviceTransactionManager.getDeviceMountPoint(ifName
 126                         .getRemoteSysName());
 127                     if (!mps.isPresent()) {
 128                         LOG.warn("Neighbouring nodeId: {} is not mounted yet", ifName.getRemoteSysName());
 129                         // The controller raises a warning rather than an error because the first node to
 130                         // mount cannot see its neighbors yet. The link will be detected when processing
 131                         // the neighbor node.
 132                     } else {
 133                         if (!createR2RLink(nodeId, ifName.getIfName(), ifName.getRemoteSysName(),
 134                             ifName.getRemotePortId())) {
 135                             LOG.error("Link Creation failed between {} and {} nodes.", nodeId, ifName
 136                                 .getRemoteSysName());
 137                             success = false;
 138                         }
 139                     }
 140                 }
 141             }
 142             return success;
 143         }
 144         else {
 145             LOG.error("Unable to read LLDP data for unmanaged openroadm device version");
 146             return false;
 147         }
 148     }
 149
 150     public Direction getDegreeDirection(Integer degreeCounter, NodeId nodeId) {
 151         InstanceIdentifier<Nodes> nodesIID = InstanceIdentifier.builder(Network.class)
 152             .child(Nodes.class, new NodesKey(nodeId.getValue())).build();
 153         try (ReadTransaction readTx = this.dataBroker.newReadOnlyTransaction()) {
 154             Optional<Nodes> nodesObject = readTx.read(LogicalDatastoreType.CONFIGURATION, nodesIID).get();
 155             if (nodesObject.isPresent() && (nodesObject.get().getMapping() != null)) {
 156                 Collection<Mapping> mappingList = nodesObject.get().nonnullMapping().values();
 157                 mappingList = mappingList.stream().filter(mp -> mp.getLogicalConnectionPoint().contains("DEG"
 158                     + degreeCounter)).collect(Collectors.toList());
 159                 if (mappingList.size() == 1) {
 160                     return Direction.Bidirectional;
 161                 } else if (mappingList.size() > 1) {
 162                     return Direction.Tx;
 163                 } else {
 164                     return Direction.NotApplicable;
 165                 }
 166             }
 167         } catch (InterruptedException | ExecutionException e) {
 168             LOG.error("Failed getting Mapping data from portMapping",e);
 169         }
 170         return Direction.NotApplicable;
 171     }
 172
 173     public boolean createR2RLink(NodeId nodeId, String interfaceName, String remoteSystemName,
 174                                  String remoteInterfaceName) {
 175         String srcTpTx = null;
 176         String srcTpRx = null;
 177         String destTpTx = null;
 178         String destTpRx = null;
 179         // Find which degree is associated with ethernet interface
 180         Integer srcDegId = getDegFromInterface(nodeId, interfaceName);
 181         if (srcDegId == null) {
 182             LOG.error("Couldnt find degree connected to Ethernet interface for nodeId: {}", nodeId);
 183             return false;
 184         }
 185         // Check whether degree is Unidirectional or Bidirectional by counting
 186         // number of
 187         // circuit-packs under degree subtree
 188         Direction sourceDirection = getDegreeDirection(srcDegId, nodeId);
 189         if (Direction.NotApplicable == sourceDirection) {
 190             LOG.error("Couldnt find degree direction for nodeId: {} and degree: {}", nodeId, srcDegId);
 191             return false;
 192         } else if (Direction.Bidirectional == sourceDirection) {
 193             srcTpTx = "DEG" + srcDegId + "-TTP-TXRX";
 194             srcTpRx = "DEG" + srcDegId + "-TTP-TXRX";
 195         } else {
 196             srcTpTx = "DEG" + srcDegId + "-TTP-TX";
 197             srcTpRx = "DEG" + srcDegId + "-TTP-RX";
 198         }
 199         // Find degree for which Ethernet interface is created on other end
 200         NodeId destNodeId = new NodeId(remoteSystemName);
 201         Integer destDegId = getDegFromInterface(destNodeId, remoteInterfaceName);
 202         if (destDegId == null) {
 203             LOG.error("Couldnt find degree connected to Ethernet interface for nodeId: {}", nodeId);
 204             return false;
 205         }
 206         // Check whether degree is Unidirectional or Bidirectional by counting
 207         // number of
 208         // circuit-packs under degree subtree
 209         Direction destinationDirection = getDegreeDirection(destDegId, destNodeId);
 210         if (Direction.NotApplicable == destinationDirection) {
 211             LOG.error("Couldnt find degree direction for nodeId: {} and degree: {}", destNodeId, destDegId);
 212             return false;
 213         } else if (Direction.Bidirectional == destinationDirection) {
 214             destTpTx = "DEG" + destDegId + "-TTP-TXRX";
 215             destTpRx = "DEG" + destDegId + "-TTP-TXRX";
 216         } else {
 217             destTpTx = "DEG" + destDegId + "-TTP-TX";
 218             destTpRx = "DEG" + destDegId + "-TTP-RX";
 219         }
 220         // A->Z
 221         LOG.debug(
 222             "Found a neighbor SrcNodeId: {} , SrcDegId: {} , SrcTPId: {}, DestNodeId:{} , DestDegId: {}, DestTPId: {}",
 223             nodeId.getValue(), srcDegId, srcTpTx, destNodeId, destDegId, destTpRx);
 224         InitRoadmNodesInputBuilder r2rlinkBuilderAToZ = new InitRoadmNodesInputBuilder();
 225         r2rlinkBuilderAToZ.setRdmANode(nodeId.getValue()).setDegANum(Uint8.valueOf(srcDegId))
 226             .setTerminationPointA(srcTpTx).setRdmZNode(destNodeId.getValue()).setDegZNum(Uint8.valueOf(destDegId))
 227             .setTerminationPointZ(destTpRx);
 228         if (!OrdLink.createRdm2RdmLinks(r2rlinkBuilderAToZ.build(), this.dataBroker)) {
 229             LOG.error("OMS Link creation failed between node: {} and nodeId: {} in A->Z direction", nodeId.getValue(),
 230                 destNodeId.getValue());
 231             return false;
 232         }
 233         // Z->A
 234         LOG.debug(
 235             "Found a neighbor SrcNodeId: {} , SrcDegId: {}"
 236                 + ", SrcTPId: {}, DestNodeId:{} , DestDegId: {}, DestTPId: {}",
 237             destNodeId, destDegId, destTpTx, nodeId.getValue(), srcDegId, srcTpRx);
 238
 239         InitRoadmNodesInputBuilder r2rlinkBuilderZToA = new InitRoadmNodesInputBuilder()
 240             .setRdmANode(destNodeId.getValue())
 241             .setDegANum(Uint8.valueOf(destDegId))
 242             .setTerminationPointA(destTpTx)
 243             .setRdmZNode(nodeId.getValue())
 244             .setDegZNum(Uint8.valueOf(srcDegId))
 245             .setTerminationPointZ(srcTpRx);
 246         if (!OrdLink.createRdm2RdmLinks(r2rlinkBuilderZToA.build(), this.dataBroker)) {
 247             LOG.error("OMS Link creation failed between node: {} and nodeId: {} in Z->A direction",
 248                 destNodeId.getValue(), nodeId.getValue());
 249             return false;
 250         }
 251         return true;
 252     }
 253
 254     public boolean deleteR2RLink(NodeId nodeId, String interfaceName, String remoteSystemName,
 255                                  String remoteInterfaceName) {
 256         String srcTpTx = null;
 257         String srcTpRx = null;
 258         String destTpTx = null;
 259         String destTpRx = null;
 260         // Find which degree is associated with ethernet interface
 261         Integer srcDegId = getDegFromInterface(nodeId, interfaceName);
 262         if (srcDegId == null) {
 263             LOG.error("Couldnt find degree connected to Ethernet interface for nodeId: {}", nodeId);
 264             return false;
 265         }
 266         // Check whether degree is Unidirectional or Bidirectional by counting number of
 267         // circuit-packs under degree subtree
 268         Direction sourceDirection = getDegreeDirection(srcDegId, nodeId);
 269         if (Direction.NotApplicable == sourceDirection) {
 270             LOG.error("Couldnt find degree direction for nodeId: {} and degree: {}", nodeId, srcDegId);
 271             return false;
 272         } else if (Direction.Bidirectional == sourceDirection) {
 273             srcTpTx = "DEG" + srcDegId + "-TTP-TXRX";
 274             srcTpRx = "DEG" + srcDegId + "-TTP-TXRX";
 275         } else {
 276             srcTpTx = "DEG" + srcDegId + "-TTP-TX";
 277             srcTpRx = "DEG" + srcDegId + "-TTP-RX";
 278         }
 279         // Find degree for which Ethernet interface is created on other end
 280         NodeId destNodeId = new NodeId(remoteSystemName);
 281         Integer destDegId = getDegFromInterface(destNodeId, remoteInterfaceName);
 282         if (destDegId == null) {
 283             LOG.error("Couldnt find degree connected to Ethernet interface for nodeId: {}", nodeId);
 284             return false;
 285         }
 286         // Check whether degree is Unidirectional or Bidirectional by counting number of
 287         // circuit-packs under degree subtree
 288         Direction destinationDirection = getDegreeDirection(destDegId, destNodeId);
 289         if (Direction.NotApplicable == destinationDirection) {
 290             LOG.error("Couldnt find degree direction for nodeId: {} and degree: {}", destNodeId, destDegId);
 291             return false;
 292         } else if (Direction.Bidirectional == destinationDirection) {
 293             destTpTx = "DEG" + destDegId + "-TTP-TXRX";
 294             destTpRx = "DEG" + destDegId + "-TTP-TXRX";
 295         } else {
 296             destTpTx = "DEG" + destDegId + "-TTP-TX";
 297             destTpRx = "DEG" + destDegId + "-TTP-RX";
 298         }
 299         return TopologyUtils.deleteLink(nodeId.getValue() + "-" + srcDegId, destNodeId.getValue() + "-" + destDegId,
 300             srcTpTx, destTpRx, networkTransactionService)
 301             && TopologyUtils.deleteLink(destNodeId.getValue() + "-" + destDegId, nodeId.getValue() + "-" + srcDegId,
 302                 destTpTx, srcTpRx, networkTransactionService);
 303     }
 304
 305     private Integer getDegFromInterface(NodeId nodeId, String interfaceName) {
 306         InstanceIdentifier<Nodes> nodesIID = InstanceIdentifier.builder(Network.class)
 307             .child(Nodes.class, new NodesKey(nodeId.getValue())).build();
 308         try (ReadTransaction readTx = this.dataBroker.newReadOnlyTransaction()) {
 309             Optional<Nodes> nodesObject = readTx.read(LogicalDatastoreType.CONFIGURATION, nodesIID).get();
 310             if (nodesObject.isPresent() && (nodesObject.get().getCpToDegree() != null)) {
 311                 Collection<CpToDegree> cpToDeg = nodesObject.get().nonnullCpToDegree().values();
 312                 Stream<CpToDegree> cpToDegStream = cpToDeg.stream().filter(cp -> cp.getInterfaceName() != null)
 313                     .filter(cp -> cp.getInterfaceName().equals(interfaceName));
 314                 if (cpToDegStream != null) {
 315                     @SuppressWarnings("unchecked") Optional<CpToDegree> firstCpToDegree = cpToDegStream.findFirst();
 316                     if (firstCpToDegree.isPresent() && (firstCpToDegree != null)) {
 317                         LOG.debug("Found and returning {}",firstCpToDegree.get().getDegreeNumber().intValue());
 318                         return firstCpToDegree.get().getDegreeNumber().intValue();
 319                     } else {
 320                         LOG.debug("Not found so returning nothing");
 321                         return null;
 322                     }
 323                 } else {
 324                     LOG.warn("CircuitPack stream couldnt find anything for nodeId: {} and interfaceName: {}",
 325                         nodeId.getValue(),interfaceName);
 326                 }
 327             } else {
 328                 LOG.warn("Could not find mapping for Interface {} for nodeId {}", interfaceName,
 329                     nodeId.getValue());
 330             }
 331         } catch (InterruptedException | ExecutionException ex) {
 332             LOG.error("Unable to read mapping for Interface : {} for nodeId {}", interfaceName, nodeId, ex);
 333         }
 334         return null;
 335     }
 336 }