applications/topology-manager/src/main/java/org/opendaylight/openflowplugin/applications/topology/manager/FlowCapableTopologyExporter.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.openflowplugin.applications.topology.manager;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Preconditions;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnectorUpdated;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeUpdated;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.FlowTopologyDiscoveryListener;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkDiscovered;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkOverutilized;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkRemoved;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkUtilizationNormal;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRemoved;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorUpdated;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRemoved;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeUpdated;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.OpendaylightInventoryListener;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
  33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
  35 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  36 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  37 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  38 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.getNodeConnectorKey;
  44 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.getNodeKey;
  45 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTerminationPoint;
  46 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTerminationPointId;
  47 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTopologyLink;
  48 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTopologyNode;
  49 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTopologyNodeId;
  50
  51 class FlowCapableTopologyExporter implements FlowTopologyDiscoveryListener, OpendaylightInventoryListener {
  52
  53     private static final Logger LOG = LoggerFactory.getLogger(FlowCapableTopologyExporter.class);
  54     private final InstanceIdentifier<Topology> topology;
  55     private final OperationProcessor processor;
  56
  57     FlowCapableTopologyExporter(final OperationProcessor processor,
  58             final InstanceIdentifier<Topology> topology) {
  59         this.processor = Preconditions.checkNotNull(processor);
  60         this.topology = Preconditions.checkNotNull(topology);
  61     }
  62
  63     @Override
  64     public void onNodeRemoved(final NodeRemoved notification) {
  65
  66         final NodeId nodeId = toTopologyNodeId(getNodeKey(notification.getNodeRef()).getId());
  67         final InstanceIdentifier<Node> nodeInstance = toNodeIdentifier(notification.getNodeRef());
  68
  69         processor.enqueueOperation(new TopologyOperation() {
  70             @Override
  71             public void applyOperation(ReadWriteTransaction transaction) {
  72                     TopologyManagerUtil.removeAffectedLinks(nodeId, transaction, topology);
  73                     transaction.delete(LogicalDatastoreType.OPERATIONAL, nodeInstance);
  74             }
  75
  76             @Override
  77             public String toString() {
  78                 return "onNodeRemoved";
  79             }
  80         });
  81     }
  82
  83     @Override
  84     public void onNodeUpdated(final NodeUpdated notification) {
  85         FlowCapableNodeUpdated fcnu = notification.getAugmentation(FlowCapableNodeUpdated.class);
  86         if (fcnu != null) {
  87             processor.enqueueOperation(new TopologyOperation() {
  88                 @Override
  89                 public void applyOperation(final ReadWriteTransaction transaction) {
  90                     final Node node = toTopologyNode(toTopologyNodeId(notification.getId()), notification.getNodeRef());
  91                     final InstanceIdentifier<Node> path = getNodePath(toTopologyNodeId(notification.getId()));
  92                     transaction.merge(LogicalDatastoreType.OPERATIONAL, path, node, true);
  93                 }
  94
  95                 @Override
  96                 public String toString() {
  97                     return "onNodeUpdated";
  98                 }
  99             });
 100         }
 101     }
 102
 103     @Override
 104     public void onNodeConnectorRemoved(final NodeConnectorRemoved notification) {
 105
 106         final InstanceIdentifier<TerminationPoint> tpInstance = toTerminationPointIdentifier(
 107                 notification.getNodeConnectorRef());
 108
 109         final InstanceIdentifier<Node> node = tpInstance.firstIdentifierOf(Node.class);
 110
 111         final TpId tpId = toTerminationPointId(getNodeConnectorKey(
 112                 notification.getNodeConnectorRef()).getId());
 113
 114         processor.enqueueOperation(new TopologyOperation() {
 115             @Override
 116             public void applyOperation(ReadWriteTransaction transaction) {
 117                 Optional<Node> nodeOptional = Optional.absent();
 118                 try {
 119                     nodeOptional = transaction.read(LogicalDatastoreType.OPERATIONAL, node).checkedGet();
 120                 } catch (ReadFailedException e) {
 121                     LOG.error("Error occured when trying to read NodeConnector ", e);
 122                 }
 123                 if (nodeOptional.isPresent()) {
 124                     TopologyManagerUtil.removeAffectedLinks(tpId, transaction, topology);
 125                     transaction.delete(LogicalDatastoreType.OPERATIONAL, tpInstance);
 126                 }
 127             }
 128
 129             @Override
 130             public String toString() {
 131                 return "onNodeConnectorRemoved";
 132             }
 133         });
 134     }
 135
 136     @Override
 137     public void onNodeConnectorUpdated(final NodeConnectorUpdated notification) {
 138         final FlowCapableNodeConnectorUpdated fcncu = notification.getAugmentation(
 139                 FlowCapableNodeConnectorUpdated.class);
 140         if (fcncu != null) {
 141             processor.enqueueOperation(new TopologyOperation() {
 142                 @Override
 143                 public void applyOperation(final ReadWriteTransaction transaction) {
 144                     final NodeId nodeId = toTopologyNodeId(getNodeKey(notification.getNodeConnectorRef()).getId());
 145                     TerminationPoint point = toTerminationPoint(toTerminationPointId(notification.getId()),
 146                             notification.getNodeConnectorRef());
 147                     final InstanceIdentifier<TerminationPoint> path = tpPath(nodeId, point.getKey().getTpId());
 148                     transaction.merge(LogicalDatastoreType.OPERATIONAL, path, point, true);
 149                     if ((fcncu.getState() != null && fcncu.getState().isLinkDown())
 150                             || (fcncu.getConfiguration() != null && fcncu.getConfiguration().isPORTDOWN())) {
 151                         TopologyManagerUtil.removeAffectedLinks(point.getTpId(), transaction, topology);
 152                     }
 153                 }
 154
 155                 @Override
 156                 public String toString() {
 157                     return "onNodeConnectorUpdated";
 158                 }
 159             });
 160         }
 161     }
 162
 163     @Override
 164     public void onLinkDiscovered(final LinkDiscovered notification) {
 165         processor.enqueueOperation(new TopologyOperation() {
 166             @Override
 167             public void applyOperation(final ReadWriteTransaction transaction) {
 168                 final Link link = toTopologyLink(notification);
 169                 final InstanceIdentifier<Link> path = TopologyManagerUtil.linkPath(link, topology);
 170                 transaction.merge(LogicalDatastoreType.OPERATIONAL, path, link, true);
 171             }
 172
 173             @Override
 174             public String toString() {
 175                 return "onLinkDiscovered";
 176             }
 177         });
 178     }
 179
 180     @Override
 181     public void onLinkOverutilized(final LinkOverutilized notification) {
 182         // NOOP
 183     }
 184
 185     @Override
 186     public void onLinkRemoved(final LinkRemoved notification) {
 187         processor.enqueueOperation(new TopologyOperation() {
 188             @Override
 189             public void applyOperation(final ReadWriteTransaction transaction) {
 190                 Optional<Link> linkOptional = Optional.absent();
 191                 try {
 192                     // read that checks if link exists (if we do not do this we might get an exception on delete)
 193                     linkOptional = transaction.read(LogicalDatastoreType.OPERATIONAL,
 194                             TopologyManagerUtil.linkPath(toTopologyLink(notification), topology)).checkedGet();
 195                 } catch (ReadFailedException e) {
 196                     LOG.error("Error occured when trying to read Link ", e);
 197                 }
 198                 if (linkOptional.isPresent()) {
 199                     transaction.delete(LogicalDatastoreType.OPERATIONAL, TopologyManagerUtil.linkPath(toTopologyLink(notification), topology));
 200                 }
 201             }
 202
 203             @Override
 204             public String toString() {
 205                 return "onLinkRemoved";
 206             }
 207         });
 208     }
 209
 210     @Override
 211     public void onLinkUtilizationNormal(final LinkUtilizationNormal notification) {
 212         // NOOP
 213     }
 214
 215     private InstanceIdentifier<Node> toNodeIdentifier(final NodeRef ref) {
 216         org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey invNodeKey = getNodeKey(ref);
 217         NodeKey nodeKey = new NodeKey(toTopologyNodeId(invNodeKey.getId()));
 218         return topology.child(Node.class, nodeKey);
 219     }
 220
 221     private InstanceIdentifier<TerminationPoint> toTerminationPointIdentifier(final NodeConnectorRef ref) {
 222         org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey invNodeKey = getNodeKey(ref);
 223         NodeConnectorKey invNodeConnectorKey = getNodeConnectorKey(ref);
 224         return tpPath(toTopologyNodeId(invNodeKey.getId()), toTerminationPointId(invNodeConnectorKey.getId()));
 225     }
 226
 227
 228
 229     private InstanceIdentifier<Node> getNodePath(final NodeId nodeId) {
 230         return topology.child(Node.class, new NodeKey(nodeId));
 231     }
 232
 233     private InstanceIdentifier<TerminationPoint> tpPath(final NodeId nodeId, final TpId tpId) {
 234         NodeKey nodeKey = new NodeKey(nodeId);
 235         TerminationPointKey tpKey = new TerminationPointKey(tpId);
 236         return topology.child(Node.class, nodeKey).child(TerminationPoint.class, tpKey);
 237     }
 238
 239 }