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 org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  11 import com.google.common.base.Optional;
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.topology.inventory.rev131030.InventoryNodeConnector;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.topology.inventory.rev131030.InventoryNodeConnectorBuilder;
  15 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25 import java.util.Map.Entry;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  29 import org.opendaylight.yangtools.yang.binding.DataObject;
  30 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36
  37 public class TerminationPointChangeListenerImpl extends DataChangeListenerImpl {
  38     private final static Logger LOG = LoggerFactory.getLogger(TerminationPointChangeListenerImpl.class);
  39
  40     public TerminationPointChangeListenerImpl(final DataBroker dataBroker, final OperationProcessor operationProcessor) {
  41         super(operationProcessor, dataBroker, InstanceIdentifier.builder(Nodes.class).child(Node.class)
  42                 .child(NodeConnector.class).augmentation(FlowCapableNodeConnector.class).build());
  43         this.operationProcessor = operationProcessor;
  44     }
  45
  46     @Override
  47     public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  48         processAddedTerminationPoints(change.getCreatedData());
  49         processUpdatedTerminationPoints(change.getUpdatedData());
  50         processRemovedTerminationPoints(change.getRemovedPaths());
  51     }
  52
  53     /**
  54      * @param removedPaths
  55      */
  56     private void processRemovedTerminationPoints(Set<InstanceIdentifier<?>> removedNodes) {
  57         for (final InstanceIdentifier<?> removedNode : removedNodes) {
  58             final TpId terminationPointId = provideTopologyTerminationPointId(removedNode);
  59             final InstanceIdentifier<TerminationPoint> iiToTopologyTerminationPoint = provideIIToTopologyTerminationPoint(
  60                     terminationPointId, removedNode);
  61             final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> node = iiToTopologyTerminationPoint.firstIdentifierOf(org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node.class);
  62
  63
  64             if (iiToTopologyTerminationPoint != null) {
  65                 operationProcessor.enqueueOperation(new TopologyOperation() {
  66
  67                     @Override
  68                     public void applyOperation(ReadWriteTransaction transaction) {
  69                         Optional<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> nodeOptional = Optional.absent();
  70                         try {
  71                             nodeOptional = transaction.read(LogicalDatastoreType.OPERATIONAL, node).checkedGet();
  72                         } catch (ReadFailedException e) {
  73                             LOG.error("Error occured when trying to read NodeConnector ", e);
  74                         }
  75                         if (nodeOptional.isPresent()) {
  76                             TopologyManagerUtil.removeAffectedLinks(terminationPointId, transaction, II_TO_TOPOLOGY);
  77                             transaction.delete(LogicalDatastoreType.OPERATIONAL, iiToTopologyTerminationPoint);
  78                         }
  79                     }
  80                 });
  81
  82             } else {
  83                 LOG.debug("Instance identifier to inventory wasn't translated to topology while deleting termination point.");
  84             }
  85         }
  86     }
  87
  88     /**
  89      * @param updatedData
  90      */
  91     private void processUpdatedTerminationPoints(Map<InstanceIdentifier<?>, DataObject> updatedData) {
  92         // TODO Auto-generated method stub
  93     }
  94
  95     private void processAddedTerminationPoints(Map<InstanceIdentifier<?>, DataObject> addedDatas) {
  96         for (Entry<InstanceIdentifier<?>, DataObject> addedData : addedDatas.entrySet()) {
  97             createData(addedData.getKey(), addedData.getValue());
  98         }
  99     }
 100
 101     protected void createData(InstanceIdentifier<?> iiToNodeInInventory, final DataObject data) {
 102         TpId terminationPointIdInTopology = provideTopologyTerminationPointId(iiToNodeInInventory);
 103         if (terminationPointIdInTopology != null) {
 104             InstanceIdentifier<TerminationPoint> iiToTopologyTerminationPoint = provideIIToTopologyTerminationPoint(
 105                     terminationPointIdInTopology, iiToNodeInInventory);
 106             TerminationPoint point = prepareTopologyTerminationPoint(terminationPointIdInTopology, iiToNodeInInventory);
 107             sendToTransactionChain(point, iiToTopologyTerminationPoint);
 108             if (data instanceof FlowCapableNodeConnector) {
 109                 removeLinks((FlowCapableNodeConnector) data, point);
 110             }
 111
 112         } else {
 113             LOG.debug("Inventory node connector key is null. Data can't be written to topology termination point");
 114         }
 115     }
 116
 117     /**
 118      * @param data
 119      */
 120     private void removeLinks(final FlowCapableNodeConnector flowCapNodeConnector, final TerminationPoint point) {
 121         operationProcessor.enqueueOperation(new TopologyOperation() {
 122
 123             @Override
 124             public void applyOperation(ReadWriteTransaction transaction) {
 125                 if ((flowCapNodeConnector.getState() != null && flowCapNodeConnector.getState().isLinkDown())
 126                         || (flowCapNodeConnector.getConfiguration() != null && flowCapNodeConnector.getConfiguration().isPORTDOWN())) {
 127                     TopologyManagerUtil.removeAffectedLinks(point.getTpId(), transaction, II_TO_TOPOLOGY);
 128                 }
 129             }
 130         });
 131     }
 132
 133     private TerminationPoint prepareTopologyTerminationPoint(final TpId terminationPointIdInTopology,
 134             final InstanceIdentifier<?> iiToNodeInInventory) {
 135         final InventoryNodeConnector inventoryNodeConnector = new InventoryNodeConnectorBuilder()
 136                 .setInventoryNodeConnectorRef(
 137                         new NodeConnectorRef(iiToNodeInInventory.firstIdentifierOf(NodeConnector.class))).build();
 138
 139         final TerminationPointBuilder terminationPointBuilder = new TerminationPointBuilder();
 140         terminationPointBuilder.setTpId(terminationPointIdInTopology);
 141         terminationPointBuilder.addAugmentation(InventoryNodeConnector.class, inventoryNodeConnector);
 142         return terminationPointBuilder.build();
 143     }
 144
 145     /**
 146      * @param terminationPointIdInTopology
 147      * @return
 148      */
 149     private InstanceIdentifier<TerminationPoint> provideIIToTopologyTerminationPoint(TpId terminationPointIdInTopology,
 150             InstanceIdentifier<?> iiToNodeInInventory) {
 151         NodeId nodeIdInTopology = provideTopologyNodeId(iiToNodeInInventory);
 152         if (terminationPointIdInTopology != null && nodeIdInTopology != null) {
 153             InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> iiToTopologyNode = provideIIToTopologyNode(nodeIdInTopology);
 154             return iiToTopologyNode.builder().child(TerminationPoint.class, new TerminationPointKey(terminationPointIdInTopology)).build();
 155         } else {
 156             LOG.debug("Value of termination point ID in topology is null. Instance identifier to topology can't be built");
 157             return null;
 158         }
 159     }
 160
 161     /**
 162      * @param iiToNodeInInventory
 163      * @return
 164      */
 165     private TpId provideTopologyTerminationPointId(InstanceIdentifier<?> iiToNodeInInventory) {
 166         NodeConnectorKey inventoryNodeConnectorKey = iiToNodeInInventory.firstKeyOf(NodeConnector.class,
 167                 NodeConnectorKey.class);
 168         if (inventoryNodeConnectorKey != null) {
 169             return new TpId(inventoryNodeConnectorKey.getId().getValue());
 170         }
 171         return null;
 172     }
 173
 174 }