applications/topology-manager/src/main/java/org/opendaylight/openflowplugin/applications/topology/manager/NodeChangeListenerImpl.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.Map;
  11 import java.util.Map.Entry;
  12 import java.util.Set;
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  15 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.topology.inventory.rev131030.InventoryNode;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.topology.inventory.rev131030.InventoryNodeBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  25 import org.opendaylight.yangtools.yang.binding.DataObject;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 public class NodeChangeListenerImpl extends DataChangeListenerImpl {
  31     private static final Logger LOG = LoggerFactory.getLogger(NodeChangeListenerImpl.class);
  32
  33     public NodeChangeListenerImpl(final DataBroker dataBroker, final OperationProcessor operationProcessor) {
  34         // TODO: listener on FlowCapableNode. what if node id in Node.class is changed (it won't be caught by this
  35         // listener)
  36         super(operationProcessor, dataBroker, InstanceIdentifier.builder(Nodes.class).child(Node.class)
  37                 .augmentation(FlowCapableNode.class).build());
  38     }
  39
  40     @Override
  41     public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  42         processAddedNode(change.getCreatedData());
  43         // processUpdatedNode(change.getUpdatedData());
  44         processRemovedNode(change.getRemovedPaths());
  45     }
  46
  47     /**
  48      * @param removedNodes
  49      */
  50     private void processRemovedNode(final Set<InstanceIdentifier<?>> removedNodes) {
  51         for (InstanceIdentifier<?> removedNode : removedNodes) {
  52             final NodeId nodeId = provideTopologyNodeId(removedNode);
  53             final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> iiToTopologyRemovedNode = provideIIToTopologyNode(nodeId);
  54             if (iiToTopologyRemovedNode != null) {
  55                 operationProcessor.enqueueOperation(new TopologyOperation() {
  56
  57                     @Override
  58                     public void applyOperation(final ReadWriteTransaction transaction) {
  59                         transaction.delete(LogicalDatastoreType.OPERATIONAL, iiToTopologyRemovedNode);
  60                         TopologyManagerUtil.removeAffectedLinks(nodeId, transaction, II_TO_TOPOLOGY);
  61                     }
  62                 });
  63             } else {
  64                 LOG.debug("Instance identifier to inventory wasn't translated to topology while deleting node.");
  65             }
  66         }
  67     }
  68
  69 //    /**
  70 //     * @param updatedData
  71 //     */
  72 //     private void processUpdatedNode(Map<InstanceIdentifier<?>, DataObject> updatedData) {
  73 //         //TODO: only node id is used from incoming data object.
  74 //         //if it is changed what should happen? Listener is on FlowCapableNode so change
  75 //         //of node id (only data which are used) isn't caught.
  76 //     }
  77
  78     /**
  79      * @param addedDatas
  80      */
  81     private void processAddedNode(final Map<InstanceIdentifier<?>, DataObject> addedDatas) {
  82         for (Entry<InstanceIdentifier<?>, DataObject> addedData : addedDatas.entrySet()) {
  83             createData(addedData.getKey());
  84         }
  85     }
  86
  87     protected void createData(final InstanceIdentifier<?> iiToNodeInInventory) {
  88         final NodeId nodeIdInTopology = provideTopologyNodeId(iiToNodeInInventory);
  89         if (nodeIdInTopology != null) {
  90             final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> iiToTopologyNode = provideIIToTopologyNode(nodeIdInTopology);
  91             sendToTransactionChain(prepareTopologyNode(nodeIdInTopology, iiToNodeInInventory), iiToTopologyNode);
  92         } else {
  93             LOG.debug("Inventory node key is null. Data can't be written to topology");
  94         }
  95     }
  96
  97     /**
  98      * @param nodeIdInTopology
  99      * @param iiToNodeInInventory
 100      * @return Node
 101      */
 102     private static org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node prepareTopologyNode(final NodeId nodeIdInTopology, final InstanceIdentifier<?> iiToNodeInInventory) {
 103         final InventoryNode inventoryNode = new InventoryNodeBuilder()
 104         .setInventoryNodeRef(new NodeRef(iiToNodeInInventory.firstIdentifierOf(Node.class)))
 105         .build();
 106
 107         final NodeBuilder topologyNodeBuilder = new NodeBuilder();
 108         topologyNodeBuilder.setNodeId(nodeIdInTopology);
 109         topologyNodeBuilder.addAugmentation(InventoryNode.class, inventoryNode);
 110
 111         return topologyNodeBuilder.build();
 112     }
 113 }