netconf/netconf-topology/src/main/java/org/opendaylight/netconf/topology/impl/NetconfTopologyImpl.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
   9 package org.opendaylight.netconf.topology.impl;
  10
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import com.google.common.util.concurrent.Futures;
  13 import io.netty.util.concurrent.EventExecutor;
  14 import java.util.Collection;
  15 import javax.annotation.Nonnull;
  16 import org.opendaylight.controller.config.threadpool.ScheduledThreadPool;
  17 import org.opendaylight.controller.config.threadpool.ThreadPool;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  20 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
  21 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  22 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  23 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
  26 import org.opendaylight.netconf.client.NetconfClientDispatcher;
  27 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceHandler;
  28 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  29 import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalFacade;
  30 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  31 import org.opendaylight.netconf.topology.AbstractNetconfTopology;
  32 import org.opendaylight.netconf.topology.api.SchemaRepositoryProvider;
  33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopologyBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
  36 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  37 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  39 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  40 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  41 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 public class NetconfTopologyImpl extends AbstractNetconfTopology
  46         implements DataTreeChangeListener<Node>, AutoCloseable {
  47
  48     private static final Logger LOG = LoggerFactory.getLogger(NetconfTopologyImpl.class);
  49
  50     private ListenerRegistration<NetconfTopologyImpl> datastoreListenerRegistration = null;
  51
  52     public NetconfTopologyImpl(final String topologyId, final NetconfClientDispatcher clientDispatcher,
  53                                final EventExecutor eventExecutor, final ScheduledThreadPool keepaliveExecutor,
  54                                final ThreadPool processingExecutor,
  55                                final SchemaRepositoryProvider schemaRepositoryProvider, final DataBroker dataBroker,
  56                                final DOMMountPointService mountPointService) {
  57         super(topologyId, clientDispatcher, eventExecutor, keepaliveExecutor, processingExecutor,
  58                 schemaRepositoryProvider, dataBroker, mountPointService);
  59     }
  60
  61     @Override
  62     public void close() throws Exception {
  63         // close all existing connectors, delete whole topology in datastore?
  64         for (final NetconfConnectorDTO connectorDTO : activeConnectors.values()) {
  65             connectorDTO.close();
  66         }
  67         activeConnectors.clear();
  68
  69         if (datastoreListenerRegistration != null) {
  70             datastoreListenerRegistration.close();
  71             datastoreListenerRegistration = null;
  72         }
  73     }
  74
  75     @Override
  76     protected RemoteDeviceHandler<NetconfSessionPreferences> createSalFacade(final RemoteDeviceId id) {
  77         return new NetconfDeviceSalFacade(id, mountPointService, dataBroker);
  78     }
  79
  80     /**
  81      * Invoked by blueprint.
  82      */
  83     public void init() {
  84         final WriteTransaction wtx = dataBroker.newWriteOnlyTransaction();
  85         initTopology(wtx, LogicalDatastoreType.CONFIGURATION);
  86         initTopology(wtx, LogicalDatastoreType.OPERATIONAL);
  87         Futures.addCallback(wtx.submit(), new FutureCallback<Void>() {
  88             @Override
  89             public void onSuccess(final Void result) {
  90                 LOG.debug("topology initialization successful");
  91             }
  92
  93             @Override
  94             public void onFailure(final Throwable throwable) {
  95                 LOG.error("Unable to initialize netconf-topology, {}", throwable);
  96             }
  97         });
  98
  99         LOG.debug("Registering datastore listener");
 100         datastoreListenerRegistration =
 101                 dataBroker.registerDataTreeChangeListener(
 102                         new DataTreeIdentifier<>(LogicalDatastoreType.CONFIGURATION,
 103                                 TopologyUtil.createTopologyListPath(topologyId).child(Node.class)), this);
 104
 105
 106     }
 107
 108     @Override
 109     public void onDataTreeChanged(@Nonnull final Collection<DataTreeModification<Node>> collection) {
 110         for (final DataTreeModification<Node> change : collection) {
 111             final DataObjectModification<Node> rootNode = change.getRootNode();
 112             switch (rootNode.getModificationType()) {
 113                 case SUBTREE_MODIFIED:
 114                     LOG.debug("Config for node {} updated", TopologyUtil.getNodeId(rootNode.getIdentifier()));
 115                     disconnectNode(TopologyUtil.getNodeId(rootNode.getIdentifier()));
 116                     connectNode(TopologyUtil.getNodeId(rootNode.getIdentifier()), rootNode.getDataAfter());
 117                     break;
 118                 case WRITE:
 119                     LOG.debug("Config for node {} created", TopologyUtil.getNodeId(rootNode.getIdentifier()));
 120                     if (activeConnectors.containsKey(TopologyUtil.getNodeId(rootNode.getIdentifier()))) {
 121                         LOG.warn("RemoteDevice{{}} was already configured, reconfiguring..",
 122                                 TopologyUtil.getNodeId(rootNode.getIdentifier()));
 123                         disconnectNode(TopologyUtil.getNodeId(rootNode.getIdentifier()));
 124                     }
 125                     connectNode(TopologyUtil.getNodeId(rootNode.getIdentifier()), rootNode.getDataAfter());
 126                     break;
 127                 case DELETE:
 128                     LOG.debug("Config for node {} deleted", TopologyUtil.getNodeId(rootNode.getIdentifier()));
 129                     disconnectNode(TopologyUtil.getNodeId(rootNode.getIdentifier()));
 130                     break;
 131                 default:
 132                     LOG.debug("Unsupported modification type: {}.", rootNode.getModificationType());
 133             }
 134         }
 135     }
 136
 137     private void initTopology(final WriteTransaction wtx, final LogicalDatastoreType datastoreType) {
 138         final NetworkTopology networkTopology = new NetworkTopologyBuilder().build();
 139         final InstanceIdentifier<NetworkTopology> networkTopologyId =
 140                 InstanceIdentifier.builder(NetworkTopology.class).build();
 141         wtx.merge(datastoreType, networkTopologyId, networkTopology);
 142         final Topology topology = new TopologyBuilder().setTopologyId(new TopologyId(topologyId)).build();
 143         wtx.merge(datastoreType,
 144                 networkTopologyId.child(Topology.class, new TopologyKey(new TopologyId(topologyId))), topology);
 145     }
 146
 147 }