netconf/sal-netconf-connector/src/main/java/org/opendaylight/netconf/sal/connect/netconf/sal/NetconfDeviceSalFacade.java

   1 /*
   2  * Copyright (c) 2014 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.netconf.sal.connect.netconf.sal;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import com.google.common.collect.Lists;
  12 import java.util.ArrayList;
  13 import java.util.List;
  14 import org.opendaylight.mdsal.binding.api.DataBroker;
  15 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  17 import org.opendaylight.mdsal.dom.api.DOMActionService;
  18 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  19 import org.opendaylight.mdsal.dom.api.DOMNotification;
  20 import org.opendaylight.mdsal.dom.api.DOMRpcService;
  21 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceHandler;
  22 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCapabilities;
  23 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  24 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.NetconfNodeFieldsOptional;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.netconf.node.fields.optional.Topology;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.netconf.node.fields.optional.TopologyKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.netconf.node.fields.optional.topology.Node;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.netconf.node.fields.optional.topology.NodeKey;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.netconf.node.fields.optional.topology.node.DatastoreLock;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeConnectionStatus.ConnectionStatus;
  33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
  35 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  36 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  37 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 public final class NetconfDeviceSalFacade implements AutoCloseable, RemoteDeviceHandler<NetconfSessionPreferences> {
  42
  43     private static final Logger LOG = LoggerFactory.getLogger(NetconfDeviceSalFacade.class);
  44
  45     private final RemoteDeviceId id;
  46     private final NetconfDeviceSalProvider salProvider;
  47     private final List<AutoCloseable> salRegistrations = new ArrayList<>();
  48     private final DataBroker dataBroker;
  49     private final String topologyId;
  50
  51     private ListenerRegistration<LockChangeListener> listenerRegistration = null;
  52
  53     public NetconfDeviceSalFacade(final RemoteDeviceId id, final DOMMountPointService mountPointService,
  54             final DataBroker dataBroker, final String topologyId) {
  55         this(id, new NetconfDeviceSalProvider(id, mountPointService, dataBroker), dataBroker, topologyId);
  56     }
  57
  58     @VisibleForTesting
  59     NetconfDeviceSalFacade(final RemoteDeviceId id, final NetconfDeviceSalProvider salProvider,
  60             final DataBroker dataBroker, final String topologyId) {
  61         this.id = id;
  62         this.salProvider = salProvider;
  63         this.dataBroker = dataBroker;
  64         this.topologyId = topologyId;
  65     }
  66
  67     @Override
  68     public synchronized void onNotification(final DOMNotification domNotification) {
  69         salProvider.getMountInstance().publish(domNotification);
  70     }
  71
  72     @Override
  73     public synchronized void onDeviceConnected(final SchemaContext schemaContext,
  74                                                final NetconfSessionPreferences netconfSessionPreferences,
  75                                                final DOMRpcService deviceRpc, final DOMActionService deviceAction) {
  76
  77         final NetconfDeviceDataBroker netconfDeviceDataBroker =
  78                 new NetconfDeviceDataBroker(id, schemaContext, deviceRpc, netconfSessionPreferences);
  79         registerLockListener(netconfDeviceDataBroker);
  80         final NetconfDeviceNotificationService notificationService = new NetconfDeviceNotificationService();
  81
  82         salProvider.getMountInstance()
  83                 .onTopologyDeviceConnected(schemaContext, netconfDeviceDataBroker, deviceRpc, notificationService,
  84                         deviceAction);
  85         salProvider.getTopologyDatastoreAdapter()
  86                 .updateDeviceData(true, netconfSessionPreferences.getNetconfDeviceCapabilities());
  87     }
  88
  89     @Override
  90     public synchronized void onDeviceReconnected(final NetconfSessionPreferences netconfSessionPreferences,
  91             final NetconfNode node) {
  92         this.salProvider.getTopologyDatastoreAdapter().updateDeviceData(ConnectionStatus.Connecting,
  93                 netconfSessionPreferences.getNetconfDeviceCapabilities(), LogicalDatastoreType.CONFIGURATION, node);
  94     }
  95
  96     @Override
  97     public synchronized void onDeviceDisconnected() {
  98         salProvider.getTopologyDatastoreAdapter().updateDeviceData(false, new NetconfDeviceCapabilities());
  99         salProvider.getMountInstance().onTopologyDeviceDisconnected();
 100         closeLockChangeListener();
 101     }
 102
 103     @Override
 104     public synchronized void onDeviceFailed(final Throwable throwable) {
 105         salProvider.getTopologyDatastoreAdapter().setDeviceAsFailed(throwable);
 106         salProvider.getMountInstance().onTopologyDeviceDisconnected();
 107         closeLockChangeListener();
 108     }
 109
 110     @Override
 111     public synchronized void close() {
 112         for (final AutoCloseable reg : Lists.reverse(salRegistrations)) {
 113             closeGracefully(reg);
 114         }
 115         closeGracefully(salProvider);
 116         closeLockChangeListener();
 117     }
 118
 119     @SuppressWarnings("checkstyle:IllegalCatch")
 120     private void closeGracefully(final AutoCloseable resource) {
 121         if (resource != null) {
 122             try {
 123                 resource.close();
 124             } catch (final Exception e) {
 125                 LOG.warn("{}: Ignoring exception while closing {}", id, resource, e);
 126             }
 127         }
 128     }
 129
 130     private void closeLockChangeListener() {
 131         if (listenerRegistration != null) {
 132             listenerRegistration.close();
 133         }
 134     }
 135
 136     private void registerLockListener(final NetconfDeviceDataBroker netconfDeviceDataBroker) {
 137         listenerRegistration = dataBroker.registerDataTreeChangeListener(
 138                 DataTreeIdentifier.create(LogicalDatastoreType.CONFIGURATION, createTopologyListPath()),
 139                 new LockChangeListener(netconfDeviceDataBroker));
 140     }
 141
 142     private InstanceIdentifier<DatastoreLock> createTopologyListPath() {
 143         return InstanceIdentifier.create(NetconfNodeFieldsOptional.class)
 144                 .child(Topology.class, new TopologyKey(new TopologyId(topologyId)))
 145                 .child(Node.class, new NodeKey(new NodeId(id.getName())))
 146                 .child(DatastoreLock.class);
 147
 148     }
 149 }