netvirt/src/main/java/org/opendaylight/unimgr/mef/netvirt/NodeConnectorListener.java

   1 /*
   2  * Copyright (c) 2016 Hewlett Packard Enterprise, Co. 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
   9 package org.opendaylight.unimgr.mef.netvirt;
  10
  11 import java.util.ArrayList;
  12 import java.util.List;
  13 import java.util.concurrent.ExecutionException;
  14
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  17 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  18 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  21 import org.opendaylight.genius.interfacemanager.globals.IfmConstants;
  22 import org.opendaylight.unimgr.api.UnimgrDataTreeChangeListener;
  23 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.UniBuilder;
  24 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.PhysicalLayersBuilder;
  25 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.physical.layers.LinksBuilder;
  26 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.physical.layers.links.Link;
  27 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.physical.layers.links.LinkBuilder;
  28 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.topology.rev150526.mef.topology.devices.Device;
  29 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.topology.rev150526.mef.topology.devices.DeviceBuilder;
  30 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.topology.rev150526.mef.topology.devices.device.interfaces.InterfaceBuilder;
  31 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.types.rev150526.Identifier45;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  37 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  38 import org.opendaylight.yangtools.yang.binding.DataObject;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 import com.google.common.util.concurrent.CheckedFuture;
  44
  45 public class NodeConnectorListener extends UnimgrDataTreeChangeListener<FlowCapableNodeConnector> {
  46
  47     private static final Logger log = LoggerFactory.getLogger(NodeConnectorListener.class);
  48     private static final Logger logger = LoggerFactory.getLogger(NodeConnectorListener.class);
  49     private static boolean handleRemovedNodeConnectors = false;
  50     private ListenerRegistration<NodeConnectorListener> evcListenerRegistration;
  51
  52     public NodeConnectorListener(final DataBroker dataBroker) {
  53         super(dataBroker);
  54
  55         registerListener();
  56     }
  57
  58     public void registerListener() {
  59         try {
  60             final DataTreeIdentifier<FlowCapableNodeConnector> dataTreeIid = new DataTreeIdentifier<>(
  61                     LogicalDatastoreType.OPERATIONAL, getInstanceIdentifier());
  62             evcListenerRegistration = dataBroker.registerDataTreeChangeListener(dataTreeIid, this);
  63             log.info("NodeConnectorListener created and registered");
  64         } catch (final Exception e) {
  65             log.error("Node connector listener registration failed !", e);
  66             throw new IllegalStateException("Node connector listener registration failed.", e);
  67         }
  68     }
  69
  70     private InstanceIdentifier<FlowCapableNodeConnector> getInstanceIdentifier() {
  71         return InstanceIdentifier.create(Nodes.class).child(Node.class).child(NodeConnector.class)
  72                 .augmentation(FlowCapableNodeConnector.class);
  73     }
  74
  75     @Override
  76     public void close() throws Exception {
  77         evcListenerRegistration.close();
  78     }
  79
  80     @Override
  81     public void add(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
  82         if (newDataObject.getRootPath() != null && newDataObject.getRootNode() != null) {
  83             log.info("node connector {} created", newDataObject.getRootNode().getIdentifier());
  84             addFlowCapableNodeConnector(newDataObject);
  85         }
  86     }
  87
  88     @Override
  89     public void remove(DataTreeModification<FlowCapableNodeConnector> removedDataObject) {
  90         if (removedDataObject.getRootPath() != null && removedDataObject.getRootNode() != null) {
  91             log.info("node connector {} deleted", removedDataObject.getRootNode().getIdentifier());
  92             removeFlowCapableNodeConnector(removedDataObject);
  93         }
  94     }
  95
  96     @Override
  97     public void update(DataTreeModification<FlowCapableNodeConnector> modifiedDataObject) {
  98         if (modifiedDataObject.getRootPath() != null && modifiedDataObject.getRootNode() != null) {
  99             log.info("node connector {} updated", modifiedDataObject.getRootNode().getIdentifier());
 100             updateFlowCapableNodeConnector(modifiedDataObject);
 101         }
 102     }
 103
 104     private void addFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
 105         try {
 106             FlowCapableNodeConnector data = newDataObject.getRootNode().getDataAfter();
 107
 108             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(newDataObject);
 109
 110             handleNodeConnectorAdded(dataBroker, dpnFromNodeConnectorId, data);
 111         } catch (final Exception e) {
 112             log.error("Add node connector failed !", e);
 113         }
 114     }
 115
 116     private void removeFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> removedDataObject) {
 117         try {
 118             FlowCapableNodeConnector data = removedDataObject.getRootNode().getDataBefore();
 119
 120             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(removedDataObject);
 121
 122             handleNodeConnectorRemoved(dataBroker, dpnFromNodeConnectorId, data);
 123         } catch (final Exception e) {
 124             log.error("Remove node connector failed !", e);
 125         }
 126     }
 127
 128     private void updateFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> modifiedDataObject) {
 129         try {
 130             FlowCapableNodeConnector original = modifiedDataObject.getRootNode().getDataBefore();
 131             FlowCapableNodeConnector update = modifiedDataObject.getRootNode().getDataAfter();
 132
 133             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(modifiedDataObject);
 134
 135             handleNodeConnectorUpdated(dataBroker, dpnFromNodeConnectorId, original, update);
 136         } catch (final Exception e) {
 137             log.error("Update node connector failed !", e);
 138         }
 139     }
 140
 141     private String getDpnIdFromNodeConnector(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
 142         InstanceIdentifier<FlowCapableNodeConnector> key = newDataObject.getRootPath().getRootIdentifier();
 143         NodeConnectorId nodeConnectorId = InstanceIdentifier.keyOf(key.firstIdentifierOf(NodeConnector.class)).getId();
 144
 145         String dpnFromNodeConnectorId = getDpnFromNodeConnectorId(nodeConnectorId);
 146         return dpnFromNodeConnectorId;
 147     }
 148
 149     private static String getDpnFromNodeConnectorId(NodeConnectorId portId) {
 150         /*
 151          * NodeConnectorId is of form 'openflow:dpnid:portnum'
 152          */
 153         String[] split = portId.getValue().split(IfmConstants.OF_URI_SEPARATOR);
 154         return split[1];
 155     }
 156
 157     private void handleNodeConnectorAdded(DataBroker dataBroker, String dpnId, FlowCapableNodeConnector nodeConnector) {
 158
 159         WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
 160
 161         logger.info("Adding mef uni/device interface {} with device {}", nodeConnector.getName(), dpnId);
 162
 163         InstanceIdentifier interfacePath = MefUtils.getDeviceInterfaceInstanceIdentifier(dpnId,
 164                 nodeConnector.getName());
 165         InterfaceBuilder interfaceBuilder = new InterfaceBuilder();
 166         interfaceBuilder.setPhy(new Identifier45(nodeConnector.getName()));
 167         DataObject deviceInterface = interfaceBuilder.build();
 168
 169         tx.merge(LogicalDatastoreType.CONFIGURATION, interfacePath, deviceInterface, true);
 170
 171         InstanceIdentifier uniPath = MefUtils.getUniInstanceIdentifier(nodeConnector.getName());
 172         UniBuilder uniBuilder = new UniBuilder();
 173         uniBuilder.setUniId(new Identifier45(nodeConnector.getName()));
 174
 175         PhysicalLayersBuilder physicalLayersBuilder = new PhysicalLayersBuilder();
 176         LinksBuilder linksBuilder = new LinksBuilder();
 177         List<Link> links = new ArrayList();
 178         LinkBuilder linkBuilder = new LinkBuilder();
 179         linkBuilder.setDevice(new Identifier45(dpnId));
 180         linkBuilder.setInterface(nodeConnector.getName());
 181         links.add(linkBuilder.build());
 182         linksBuilder.setLink(links);
 183         physicalLayersBuilder.setLinks(linksBuilder.build());
 184         uniBuilder.setPhysicalLayers(physicalLayersBuilder.build());
 185         DataObject uni = uniBuilder.build();
 186
 187         tx.merge(LogicalDatastoreType.CONFIGURATION, uniPath, uni, true);
 188         CheckedFuture<Void, TransactionCommitFailedException> futures = tx.submit();
 189
 190         try {
 191             futures.get();
 192         } catch (InterruptedException | ExecutionException e) {
 193             logger.error("Error writing to datastore (path, data) : ({}, {}), ({}, {})", interfacePath, deviceInterface,
 194                     uniPath, uni);
 195             throw new RuntimeException(e.getMessage());
 196         }
 197     }
 198
 199     private void handleNodeConnectorRemoved(DataBroker dataBroker, String dpnId,
 200             FlowCapableNodeConnector nodeConnector) {
 201
 202         if (!handleRemovedNodeConnectors) {
 203             return;
 204         }
 205
 206         MdsalUtils.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION,
 207                 MefUtils.getDeviceInterfaceInstanceIdentifier(dpnId, nodeConnector.getName()));
 208
 209         MdsalUtils.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION,
 210                 MefUtils.getUniLinkInstanceIdentifier(nodeConnector.getName(), dpnId, nodeConnector.getName()));
 211     }
 212
 213     private void handleNodeConnectorUpdated(DataBroker dataBroker, String dpnFromNodeConnectorId,
 214             FlowCapableNodeConnector original, FlowCapableNodeConnector update) {
 215
 216     }
 217 }