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.Uni;
  24 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.UniBuilder;
  25 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.PhysicalLayersBuilder;
  26 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.physical.layers.LinksBuilder;
  27 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.physical.layers.links.Link;
  28 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.interfaces.rev150526.mef.interfaces.unis.uni.physical.layers.links.LinkBuilder;
  29 import org.opendaylight.yang.gen.v1.http.metroethernetforum.org.ns.yang.mef.topology.rev150526.mef.topology.devices.device.interfaces.Interface;
  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.yang.gen.v1.urn.opendaylight.netvirt.elan.config.rev150710.ElanConfig;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.config.rev150710.ElanConfigBuilder;
  39 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  40 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 import com.google.common.util.concurrent.CheckedFuture;
  45
  46 public class NodeConnectorListener extends UnimgrDataTreeChangeListener<FlowCapableNodeConnector> {
  47
  48     private static final String BRIDGE_PREFIX = "br-";
  49     private static final String TUNNEL_PREFIX = "tun";
  50     private static final Logger log = LoggerFactory.getLogger(NodeConnectorListener.class);
  51     private final UniPortManager uniPortManager;
  52     private ListenerRegistration<NodeConnectorListener> nodeConnectorListenerRegistration;
  53
  54     public NodeConnectorListener(final DataBroker dataBroker, final UniPortManager uniPortManager) {
  55         super(dataBroker);
  56         this.uniPortManager = uniPortManager;
  57         registerListener();
  58     }
  59
  60     public void registerListener() {
  61         try {
  62             final DataTreeIdentifier<FlowCapableNodeConnector> dataTreeIid = new DataTreeIdentifier<>(
  63                     LogicalDatastoreType.OPERATIONAL, getInstanceIdentifier());
  64             nodeConnectorListenerRegistration = dataBroker.registerDataTreeChangeListener(dataTreeIid, this);
  65             log.info("NodeConnectorListener created and registered");
  66         } catch (final Exception e) {
  67             log.error("Node connector listener registration failed !", e);
  68             throw new IllegalStateException("Node connector listener registration failed.", e);
  69         }
  70     }
  71
  72     @SuppressWarnings("deprecation")
  73     private InstanceIdentifier<FlowCapableNodeConnector> getInstanceIdentifier() {
  74         return InstanceIdentifier.create(Nodes.class).child(Node.class).child(NodeConnector.class)
  75                 .augmentation(FlowCapableNodeConnector.class);
  76     }
  77
  78     @Override
  79     public void close() throws Exception {
  80         nodeConnectorListenerRegistration.close();
  81     }
  82
  83     @Override
  84     public void add(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
  85         if (newDataObject.getRootPath() != null && newDataObject.getRootNode() != null) {
  86             log.info("node connector {} created", newDataObject.getRootNode().getIdentifier());
  87             addFlowCapableNodeConnector(newDataObject);
  88         }
  89     }
  90
  91     @Override
  92     public void remove(DataTreeModification<FlowCapableNodeConnector> removedDataObject) {
  93         if (removedDataObject.getRootPath() != null && removedDataObject.getRootNode() != null) {
  94             log.info("node connector {} deleted", removedDataObject.getRootNode().getIdentifier());
  95             removeFlowCapableNodeConnector(removedDataObject);
  96         }
  97     }
  98
  99     @Override
 100     public void update(DataTreeModification<FlowCapableNodeConnector> modifiedDataObject) {
 101         if (modifiedDataObject.getRootPath() != null && modifiedDataObject.getRootNode() != null) {
 102             log.info("node connector {} updated", modifiedDataObject.getRootNode().getIdentifier());
 103             updateFlowCapableNodeConnector(modifiedDataObject);
 104         }
 105     }
 106
 107     private void addFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
 108         try {
 109             FlowCapableNodeConnector data = newDataObject.getRootNode().getDataAfter();
 110
 111             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(newDataObject);
 112
 113             handleNodeConnectorAdded(dataBroker, dpnFromNodeConnectorId, data);
 114         } catch (final Exception e) {
 115             log.error("Add node connector failed !", e);
 116         }
 117     }
 118
 119     private void removeFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> removedDataObject) {
 120         try {
 121             FlowCapableNodeConnector data = removedDataObject.getRootNode().getDataBefore();
 122
 123             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(removedDataObject);
 124
 125             handleNodeConnectorRemoved(dataBroker, dpnFromNodeConnectorId, data);
 126         } catch (final Exception e) {
 127             log.error("Remove node connector failed !", e);
 128         }
 129     }
 130
 131     private void updateFlowCapableNodeConnector(DataTreeModification<FlowCapableNodeConnector> modifiedDataObject) {
 132         try {
 133             FlowCapableNodeConnector original = modifiedDataObject.getRootNode().getDataBefore();
 134             FlowCapableNodeConnector update = modifiedDataObject.getRootNode().getDataAfter();
 135
 136             String dpnFromNodeConnectorId = getDpnIdFromNodeConnector(modifiedDataObject);
 137
 138             handleNodeConnectorUpdated(dataBroker, dpnFromNodeConnectorId, original, update);
 139         } catch (final Exception e) {
 140             log.error("Update node connector failed !", e);
 141         }
 142     }
 143
 144     @SuppressWarnings("deprecation")
 145     private String getDpnIdFromNodeConnector(DataTreeModification<FlowCapableNodeConnector> newDataObject) {
 146         InstanceIdentifier<FlowCapableNodeConnector> key = newDataObject.getRootPath().getRootIdentifier();
 147         NodeConnectorId nodeConnectorId = InstanceIdentifier.keyOf(key.firstIdentifierOf(NodeConnector.class)).getId();
 148
 149         String dpnFromNodeConnectorId = getDpnFromNodeConnectorId(nodeConnectorId);
 150         return dpnFromNodeConnectorId;
 151     }
 152
 153     @SuppressWarnings("deprecation")
 154     private static String getDpnFromNodeConnectorId(NodeConnectorId portId) {
 155         /*
 156          * NodeConnectorId is of form 'openflow:dpnid:portnum'
 157          */
 158         String[] split = portId.getValue().split(IfmConstants.OF_URI_SEPARATOR);
 159         return split[1];
 160     }
 161
 162     private void handleNodeConnectorAdded(DataBroker dataBroker, String dpnId, FlowCapableNodeConnector nodeConnector) {
 163
 164         String uniName = MefInterfaceUtils.getDeviceInterfaceName(dpnId, nodeConnector.getName());
 165
 166         if (shouldFilterOutNodeConnector(uniName)) {
 167             log.info("filtered out interface {} with device {}", nodeConnector.getName(), dpnId);
 168             return;
 169         }
 170
 171         WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
 172
 173         log.info("Adding mef uni/device interface {} with device {}", nodeConnector.getName(), dpnId);
 174
 175         InstanceIdentifier<Interface> interfacePath = MefInterfaceUtils.getDeviceInterfaceInstanceIdentifier(dpnId,
 176                 uniName);
 177         InterfaceBuilder interfaceBuilder = new InterfaceBuilder();
 178         interfaceBuilder.setPhy(new Identifier45(uniName));
 179         Interface deviceInterface = interfaceBuilder.build();
 180         tx.merge(LogicalDatastoreType.OPERATIONAL, interfacePath, deviceInterface, true);
 181
 182         InstanceIdentifier<Uni> uniPath = MefInterfaceUtils.getUniInstanceIdentifier(uniName);
 183         UniBuilder uniBuilder = new UniBuilder();
 184         uniBuilder.setUniId(new Identifier45(uniName));
 185         uniBuilder.setMacAddress(nodeConnector.getHardwareAddress());
 186
 187         PhysicalLayersBuilder physicalLayersBuilder = new PhysicalLayersBuilder();
 188         LinksBuilder linksBuilder = new LinksBuilder();
 189         List<Link> links = new ArrayList<>();
 190         LinkBuilder linkBuilder = new LinkBuilder();
 191         linkBuilder.setDevice(new Identifier45(dpnId));
 192         linkBuilder.setInterface(uniName);
 193         links.add(linkBuilder.build());
 194         linksBuilder.setLink(links);
 195         physicalLayersBuilder.setLinks(linksBuilder.build());
 196         uniBuilder.setPhysicalLayers(physicalLayersBuilder.build());
 197         Uni uni = uniBuilder.build();
 198         tx.merge(LogicalDatastoreType.OPERATIONAL, uniPath, uni, true);
 199
 200         CheckedFuture<Void, TransactionCommitFailedException> futures = tx.submit();
 201         try {
 202             futures.get();
 203         } catch (InterruptedException | ExecutionException e) {
 204             log.error("Error writing to datastore (path, data) : ({}, {}), ({}, {})", interfacePath, deviceInterface,
 205                     uniPath, uni);
 206             throw new RuntimeException(e.getMessage());
 207         }
 208
 209         // Reply UNI port configuration
 210         uniPortManager.updateOperUni(uni.getUniId().getValue());
 211     }
 212
 213     private void handleNodeConnectorRemoved(DataBroker dataBroker, String dpnId,
 214             FlowCapableNodeConnector nodeConnector) {
 215
 216         String uniName = MefInterfaceUtils.getDeviceInterfaceName(dpnId, nodeConnector.getName());
 217         InstanceIdentifier<Interface> interfacePath = MefInterfaceUtils.getDeviceInterfaceInstanceIdentifier(dpnId,
 218                 uniName);
 219         if (MefInterfaceUtils.getInterface(dataBroker, dpnId, uniName, LogicalDatastoreType.OPERATIONAL) != null) {
 220             MdsalUtils.syncDelete(dataBroker, LogicalDatastoreType.OPERATIONAL, interfacePath);
 221         }
 222
 223         // Reply UNI port configuration
 224         uniPortManager.removeUniPorts(uniName);
 225         InstanceIdentifier<Uni> uniPath = MefInterfaceUtils.getUniInstanceIdentifier(uniName);
 226         if (MefInterfaceUtils.getUni(dataBroker, uniName, LogicalDatastoreType.OPERATIONAL) != null) {
 227             MdsalUtils.syncDelete(dataBroker, LogicalDatastoreType.OPERATIONAL, uniPath);
 228         }
 229     }
 230
 231     private void handleNodeConnectorUpdated(DataBroker dataBroker, String dpnFromNodeConnectorId,
 232             FlowCapableNodeConnector original, FlowCapableNodeConnector update) {
 233
 234     }
 235
 236     private boolean shouldFilterOutNodeConnector(String interfaceName) {
 237         String[] splits = interfaceName.split(":");
 238         return splits.length > 1 && (splits[1].startsWith(TUNNEL_PREFIX) || splits[1].startsWith(BRIDGE_PREFIX));
 239     }
 240 }