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 org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  11
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.topology.inventory.rev131030.InventoryNode;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.topology.inventory.rev131030.InventoryNodeBuilder;
  14 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  15 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  16 import java.util.Set;
  17 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20 import java.util.Map.Entry;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import java.util.Map;
  26 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  27 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  28 import org.opendaylight.yangtools.yang.binding.DataObject;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30
  31 public class NodeChangeListenerImpl extends DataChangeListenerImpl {
  32     private final static Logger LOG = LoggerFactory.getLogger(NodeChangeListenerImpl.class);
  33
  34     public NodeChangeListenerImpl(final DataBroker dataBroker, final OperationProcessor operationProcessor) {
  35         // TODO: listener on FlowCapableNode. what if node id in Node.class is changed (it won't be caught by this
  36         // listener)
  37         super(operationProcessor, dataBroker, InstanceIdentifier.builder(Nodes.class).child(Node.class)
  38                 .augmentation(FlowCapableNode.class).build());
  39     }
  40
  41     @Override
  42     public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  43         processAddedNode(change.getCreatedData());
  44         // processUpdatedNode(change.getUpdatedData());
  45         processRemovedNode(change.getRemovedPaths());
  46     }
  47
  48     /**
  49      * @param removedPaths
  50      */
  51     private void processRemovedNode(Set<InstanceIdentifier<?>> removedNodes) {
  52         for (InstanceIdentifier<?> removedNode : removedNodes) {
  53             final NodeId nodeId = provideTopologyNodeId(removedNode);
  54             final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> iiToTopologyRemovedNode = provideIIToTopologyNode(nodeId);
  55             if (iiToTopologyRemovedNode != null) {
  56                 operationProcessor.enqueueOperation(new TopologyOperation() {
  57
  58                     @Override
  59                     public void applyOperation(ReadWriteTransaction transaction) {
  60                         transaction.delete(LogicalDatastoreType.OPERATIONAL, iiToTopologyRemovedNode);
  61                         TopologyManagerUtil.removeAffectedLinks(nodeId, transaction, II_TO_TOPOLOGY);
  62                     }
  63                 });
  64             } else {
  65                 LOG.debug("Instance identifier to inventory wasn't translated to topology while deleting node.");
  66             }
  67         }
  68     }
  69
  70     /**
  71      * @param updatedData
  72      */
  73     // private void processUpdatedNode(Map<InstanceIdentifier<?>, DataObject> updatedData) {
  74     // //TODO: only node id is used from incomming data object.
  75     // //if it is changed what should happen? Listener is on FlocCapableNode so change
  76     // //of node id (only data which are used) isn't caught.
  77     // }
  78
  79     /**
  80      * @param createdData
  81      */
  82     private void processAddedNode(Map<InstanceIdentifier<?>, DataObject> addedDatas) {
  83         for (Entry<InstanceIdentifier<?>, DataObject> addedData : addedDatas.entrySet()) {
  84             createData(addedData.getKey());
  85         }
  86     }
  87
  88     protected void createData(InstanceIdentifier<?> iiToNodeInInventory) {
  89         final NodeId nodeIdInTopology = provideTopologyNodeId(iiToNodeInInventory);
  90         if (nodeIdInTopology != null) {
  91             final InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> iiToTopologyNode = provideIIToTopologyNode(nodeIdInTopology);
  92             sendToTransactionChain(prepareTopologyNode(nodeIdInTopology, iiToNodeInInventory), iiToTopologyNode);
  93         } else {
  94             LOG.debug("Inventory node key is null. Data can't be written to topology");
  95         }
  96     }
  97
  98     /**
  99      * @param nodeIdInTopology
 100      * @param iiToNodeInInventory
 101      * @return
 102      */
 103     private org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node prepareTopologyNode(NodeId nodeIdInTopology, InstanceIdentifier<?> iiToNodeInInventory) {
 104         final InventoryNode inventoryNode = new InventoryNodeBuilder()
 105         .setInventoryNodeRef(new NodeRef(iiToNodeInInventory.firstIdentifierOf(Node.class)))
 106         .build();
 107
 108         final NodeBuilder topologyNodeBuilder = new NodeBuilder();
 109         topologyNodeBuilder.setNodeId(nodeIdInTopology);
 110         topologyNodeBuilder.addAugmentation(InventoryNode.class, inventoryNode);
 111
 112         return topologyNodeBuilder.build();
 113     }
 114 }