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 boolean handleRemovedNodeConnectors = false;
  49     private ListenerRegistration<NodeConnectorListener> evcListenerRegistration;
  50
  51     public NodeConnectorListener(final DataBroker dataBroker) {
  52         super(dataBroker);
  53
  54         registerListener();
  55     }
  56
  57     public void registerListener() {
  58         try {
  59             final DataTreeIdentifier<FlowCapableNodeConnector> dataTreeIid = new DataTreeIdentifier<>(
  60                     LogicalDatastoreType.OPERATIONAL, getInstanceIdentifier());
  61             evcListenerRegistration = dataBroker.registerDataTreeChangeListener(dataTreeIid, this);
  62             log.info("NodeConnectorListener created and registered");
  63         } catch (final Exception e) {
  64             log.error("Node connector listener registration failed !", e);
  65             throw new IllegalStateException("Node connector listener registration failed.", e);
  66         }
  67     }
  68
  69     private InstanceIdentifier<FlowCapableNodeConnector> getInstanceIdentifier() {
  70         return InstanceIdentifier.create(Nodes.class).child(Node.class).child(NodeConnector.class)
  71                 .augmentation(FlowCapableNodeConnector.class);
  72     }
  73
  74     @Override
  75     public void close() throws Exception {
  76         evcListenerRegistration.close();
  77     }
  78
  79     @Override
  80     public void add(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
  81         if (newDataObject.getRootPath() != null && newDataObject.getRootNode() != null) {
  82             log.info("node connector {} created", newDataObject.getRootNode().getIdentifier());
  83             addFlowCapableNodeConnector(newDataObject);
  84         }
  85     }
  86
  87     @Override
  88     public void remove(DataTreeModification<FlowCapableNodeConnector> removedDataObject) {
  89         if (removedDataObject.getRootPath() != null && removedDataObject.getRootNode() != null) {
  90             log.info("node connector {} deleted", removedDataObject.getRootNode().getIdentifier());
  91             removeFlowCapableNodeConnector(removedDataObject);
  92         }
  93     }
  94
  95     @Override
  96     public void update(DataTreeModification<FlowCapableNodeConnector> modifiedDataObject) {
  97         if (modifiedDataObject.getRootPath() != null && modifiedDataObject.getRootNode() != null) {
  98             log.info("node connector {} updated", modifiedDataObject.getRootNode().getIdentifier());
  99             updateFlowCapableNodeConnector(modifiedDataObject);
 100         }
 101     }
 102
 103     private void addFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
 104         try {
 105             FlowCapableNodeConnector data = newDataObject.getRootNode().getDataAfter();
 106
 107             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(newDataObject);
 108
 109             handleNodeConnectorAdded(dataBroker, dpnFromNodeConnectorId, data);
 110         } catch (final Exception e) {
 111             log.error("Add node connector failed !", e);
 112         }
 113     }
 114
 115     private void removeFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> removedDataObject) {
 116         try {
 117             FlowCapableNodeConnector data = removedDataObject.getRootNode().getDataBefore();
 118
 119             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(removedDataObject);
 120
 121             handleNodeConnectorRemoved(dataBroker, dpnFromNodeConnectorId, data);
 122         } catch (final Exception e) {
 123             log.error("Remove node connector failed !", e);
 124         }
 125     }
 126
 127     private void updateFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> modifiedDataObject) {
 128         try {
 129             FlowCapableNodeConnector original = modifiedDataObject.getRootNode().getDataBefore();
 130             FlowCapableNodeConnector update = modifiedDataObject.getRootNode().getDataAfter();
 131
 132             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(modifiedDataObject);
 133
 134             handleNodeConnectorUpdated(dataBroker, dpnFromNodeConnectorId, original, update);
 135         } catch (final Exception e) {
 136             log.error("Update node connector failed !", e);
 137         }
 138     }
 139
 140     private String getDpnIdFromNodeConnector(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
 141         InstanceIdentifier<FlowCapableNodeConnector> key = newDataObject.getRootPath().getRootIdentifier();
 142         NodeConnectorId nodeConnectorId = InstanceIdentifier.keyOf(key.firstIdentifierOf(NodeConnector.class)).getId();
 143
 144         String dpnFromNodeConnectorId = getDpnFromNodeConnectorId(nodeConnectorId);
 145         return dpnFromNodeConnectorId;
 146     }
 147
 148     private static String getDpnFromNodeConnectorId(NodeConnectorId portId) {
 149         /*
 150          * NodeConnectorId is of form 'openflow:dpnid:portnum'
 151          */
 152         String[] split = portId.getValue().split(IfmConstants.OF_URI_SEPARATOR);
 153         return split[1];
 154     }
 155
 156     private void handleNodeConnectorAdded(DataBroker dataBroker, String dpnId, FlowCapableNodeConnector nodeConnector) {
 157
 158         WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
 159
 160         log.info("Adding mef uni/device interface {} with device {}", nodeConnector.getName(), dpnId);
 161
 162         String uniName = NetvirtUtils.getDeviceInterfaceName(dpnId, nodeConnector.getName());
 163         InstanceIdentifier interfacePath = MefUtils.getDeviceInterfaceInstanceIdentifier(dpnId, uniName);
 164         InterfaceBuilder interfaceBuilder = new InterfaceBuilder();
 165         interfaceBuilder.setPhy(new Identifier45(uniName));
 166         DataObject deviceInterface = interfaceBuilder.build();
 167
 168         tx.merge(LogicalDatastoreType.CONFIGURATION, interfacePath, deviceInterface, true);
 169
 170         InstanceIdentifier uniPath = MefUtils.getUniInstanceIdentifier(uniName);
 171         UniBuilder uniBuilder = new UniBuilder();
 172         uniBuilder.setUniId(new Identifier45(uniName));
 173         uniBuilder.setMacAddress(nodeConnector.getHardwareAddress());
 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(uniName);
 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             log.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         String uniName = NetvirtUtils.getDeviceInterfaceName(dpnId, nodeConnector.getName());
 203
 204         if (!handleRemovedNodeConnectors) {
 205             return;
 206         }
 207
 208         MdsalUtils.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION,
 209                 MefUtils.getDeviceInterfaceInstanceIdentifier(dpnId, uniName));
 210
 211         MdsalUtils.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION,
 212                 MefUtils.getUniLinkInstanceIdentifier(nodeConnector.getName(), dpnId, uniName));
 213     }
 214
 215     private void handleNodeConnectorUpdated(DataBroker dataBroker, String dpnFromNodeConnectorId,
 216             FlowCapableNodeConnector original, FlowCapableNodeConnector update) {
 217
 218     }
 219 }