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