applications/topology-manager/src/main/java/org/opendaylight/openflowplugin/applications/topology/manager/TerminationPointChangeListenerImpl.java

   1 /*
   2  * Copyright (c) 2015 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 java.util.List;
  11 import java.util.Optional;
  12 import java.util.concurrent.ExecutionException;
  13 import javax.annotation.PreDestroy;
  14 import javax.inject.Inject;
  15 import javax.inject.Singleton;
  16 import org.opendaylight.mdsal.binding.api.DataBroker;
  17 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  18 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.topology.inventory.rev131030.InventoryNodeConnectorBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.osgi.service.component.annotations.Activate;
  33 import org.osgi.service.component.annotations.Component;
  34 import org.osgi.service.component.annotations.Deactivate;
  35 import org.osgi.service.component.annotations.Reference;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 @Singleton
  40 @Component(service = { })
  41 public class TerminationPointChangeListenerImpl extends DataTreeChangeListenerImpl<FlowCapableNodeConnector> {
  42     private static final Logger LOG = LoggerFactory.getLogger(TerminationPointChangeListenerImpl.class);
  43
  44     @Inject
  45     @Activate
  46     public TerminationPointChangeListenerImpl(@Reference final DataBroker dataBroker,
  47             @Reference final OperationProcessor operationProcessor) {
  48         super(operationProcessor, dataBroker,
  49               InstanceIdentifier.builder(Nodes.class).child(Node.class).child(NodeConnector.class)
  50                       .augmentation(FlowCapableNodeConnector.class).build());
  51     }
  52
  53     @Override
  54     public void onDataTreeChanged(final List<DataTreeModification<FlowCapableNodeConnector>> modifications) {
  55         for (DataTreeModification<FlowCapableNodeConnector> modification : modifications) {
  56             switch (modification.getRootNode().modificationType()) {
  57                 case WRITE:
  58                     processAddedTerminationPoints(modification);
  59                     break;
  60                 case SUBTREE_MODIFIED:
  61                     processUpdatedTerminationPoints(modification);
  62                     break;
  63                 case DELETE:
  64                     processRemovedTerminationPoints(modification);
  65                     break;
  66                 default:
  67                     throw new IllegalArgumentException(
  68                             "Unhandled modification type: {}" + modification.getRootNode().modificationType());
  69             }
  70         }
  71     }
  72
  73     @Deactivate
  74     @PreDestroy
  75     @Override
  76     public void close() {
  77         super.close();
  78     }
  79
  80     private void processRemovedTerminationPoints(final DataTreeModification<FlowCapableNodeConnector> modification) {
  81         final InstanceIdentifier<FlowCapableNodeConnector> removedNode = modification.getRootPath().path();
  82         final TpId terminationPointId = provideTopologyTerminationPointId(removedNode);
  83         final InstanceIdentifier<TerminationPoint> iiToTopologyTerminationPoint = provideIIToTopologyTerminationPoint(
  84                 terminationPointId, removedNode);
  85
  86         if (iiToTopologyTerminationPoint != null) {
  87             final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology
  88                     .rev131021.network.topology.topology.Node>
  89                     node = iiToTopologyTerminationPoint.firstIdentifierOf(
  90                     org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network
  91                             .topology.topology.Node.class);
  92             operationProcessor.enqueueOperation(manager -> {
  93                 Optional<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network
  94                         .topology.topology.Node>
  95                         nodeOptional = Optional.empty();
  96                 try {
  97                     nodeOptional = manager.readFromTransaction(LogicalDatastoreType.OPERATIONAL, node).get();
  98                 } catch (InterruptedException | ExecutionException e) {
  99                     LOG.warn("Error occurred when trying to read NodeConnector: {}", e.getMessage());
 100                     LOG.debug("Error occurred when trying to read NodeConnector.. ", e);
 101                 }
 102                 if (nodeOptional.isPresent()) {
 103                     TopologyManagerUtil.removeAffectedLinks(terminationPointId, manager, II_TO_TOPOLOGY);
 104                     manager.addDeleteOperationToTxChain(LogicalDatastoreType.OPERATIONAL,
 105                                                          iiToTopologyTerminationPoint);
 106                 }
 107             });
 108         } else {
 109             LOG.debug(
 110                     "Instance identifier to inventory wasn't translated to topology while deleting termination point.");
 111         }
 112     }
 113
 114     private void processUpdatedTerminationPoints(final DataTreeModification<FlowCapableNodeConnector> modification) {
 115         // TODO Auto-generated method stub
 116     }
 117
 118     private void processAddedTerminationPoints(final DataTreeModification<FlowCapableNodeConnector> modification) {
 119         final InstanceIdentifier<FlowCapableNodeConnector> iiToNodeInInventory = modification.getRootPath().path();
 120         TpId terminationPointIdInTopology = provideTopologyTerminationPointId(iiToNodeInInventory);
 121         if (terminationPointIdInTopology != null) {
 122             InstanceIdentifier<TerminationPoint> iiToTopologyTerminationPoint = provideIIToTopologyTerminationPoint(
 123                     terminationPointIdInTopology, iiToNodeInInventory);
 124             TerminationPoint point = prepareTopologyTerminationPoint(terminationPointIdInTopology, iiToNodeInInventory);
 125             sendToTransactionChain(point, iiToTopologyTerminationPoint);
 126             removeLinks(modification.getRootNode().dataAfter(), point);
 127         } else {
 128             LOG.debug("Inventory node connector key is null. Data can't be written to topology termination point");
 129         }
 130     }
 131
 132     private void removeLinks(final FlowCapableNodeConnector flowCapNodeConnector, final TerminationPoint point) {
 133         operationProcessor.enqueueOperation(manager -> {
 134             if (flowCapNodeConnector.getState() != null && flowCapNodeConnector.getState().getLinkDown()
 135                     || flowCapNodeConnector.getConfiguration() != null
 136                         && flowCapNodeConnector.getConfiguration().getPORTDOWN()) {
 137                 TopologyManagerUtil.removeAffectedLinks(point.getTpId(), manager, II_TO_TOPOLOGY);
 138             }
 139         });
 140     }
 141
 142     private static TerminationPoint prepareTopologyTerminationPoint(final TpId terminationPointIdInTopology,
 143                                                                     final
 144                                                                     InstanceIdentifier<FlowCapableNodeConnector>
 145                                                                             iiToNodeInInventory) {
 146         return new TerminationPointBuilder()
 147                 .setTpId(terminationPointIdInTopology)
 148                 .addAugmentation(new InventoryNodeConnectorBuilder()
 149                     .setInventoryNodeConnectorRef(
 150                         new NodeConnectorRef(iiToNodeInInventory.firstIdentifierOf(NodeConnector.class)))
 151                     .build())
 152                 .build();
 153     }
 154
 155     private InstanceIdentifier<TerminationPoint> provideIIToTopologyTerminationPoint(
 156             final TpId terminationPointIdInTopology,
 157             final InstanceIdentifier<FlowCapableNodeConnector> iiToNodeInInventory) {
 158         NodeId nodeIdInTopology = provideTopologyNodeId(iiToNodeInInventory);
 159         if (terminationPointIdInTopology != null && nodeIdInTopology != null) {
 160             InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology
 161                     .rev131021.network.topology.topology.Node>
 162                     iiToTopologyNode = provideIIToTopologyNode(nodeIdInTopology);
 163             return iiToTopologyNode.builder()
 164                     .child(TerminationPoint.class, new TerminationPointKey(terminationPointIdInTopology)).build();
 165         } else {
 166             LOG.debug(
 167                     "Value of termination point ID in topology is null. Instance identifier to topology can't be "
 168                             + "built");
 169             return null;
 170         }
 171     }
 172
 173     private static TpId provideTopologyTerminationPointId(
 174             final InstanceIdentifier<FlowCapableNodeConnector> iiToNodeInInventory) {
 175         NodeConnectorKey inventoryNodeConnectorKey = iiToNodeInInventory.firstKeyOf(NodeConnector.class);
 176         if (inventoryNodeConnectorKey != null) {
 177             return new TpId(inventoryNodeConnectorKey.getId().getValue());
 178         }
 179         return null;
 180     }
 181
 182 }