netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/MasterSalFacade.java

   1 /*
   2  * Copyright (c) 2016 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.topology.singleton.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import akka.actor.ActorRef;
  13 import akka.actor.ActorSystem;
  14 import akka.cluster.Cluster;
  15 import akka.dispatch.OnComplete;
  16 import akka.pattern.Patterns;
  17 import akka.util.Timeout;
  18 import java.util.List;
  19 import org.opendaylight.mdsal.binding.api.DataBroker;
  20 import org.opendaylight.mdsal.dom.api.DOMActionService;
  21 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  22 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  23 import org.opendaylight.mdsal.dom.api.DOMNotification;
  24 import org.opendaylight.mdsal.dom.api.DOMRpcService;
  25 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
  26 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceHandler;
  27 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCapabilities;
  28 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  29 import org.opendaylight.netconf.sal.connect.netconf.sal.AbstractNetconfDataTreeService;
  30 import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceDataBroker;
  31 import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceNotificationService;
  32 import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalProvider;
  33 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  34 import org.opendaylight.netconf.topology.singleton.messages.CreateInitialMasterActorData;
  35 import org.opendaylight.yangtools.rfc8528.data.api.MountPointContext;
  36 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
  37 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40 import scala.concurrent.Future;
  41
  42 class MasterSalFacade implements AutoCloseable, RemoteDeviceHandler<NetconfSessionPreferences> {
  43
  44     private static final Logger LOG = LoggerFactory.getLogger(MasterSalFacade.class);
  45
  46     private final RemoteDeviceId id;
  47     private final Timeout actorResponseWaitTime;
  48     private final NetconfDeviceSalProvider salProvider;
  49     private final ActorRef masterActorRef;
  50     private final ActorSystem actorSystem;
  51
  52     private MountPointContext currentMountContext = null;
  53     private NetconfSessionPreferences netconfSessionPreferences = null;
  54     private DOMRpcService deviceRpc = null;
  55     private DOMDataBroker deviceDataBroker = null;
  56     private NetconfDataTreeService netconfService = null;
  57     private DOMActionService deviceAction = null;
  58
  59     MasterSalFacade(final RemoteDeviceId id,
  60                     final ActorSystem actorSystem,
  61                     final ActorRef masterActorRef,
  62                     final Timeout actorResponseWaitTime,
  63                     final DOMMountPointService mountService,
  64                     final DataBroker dataBroker) {
  65         this.id = id;
  66         salProvider = new NetconfDeviceSalProvider(id, mountService, dataBroker);
  67         this.actorSystem = actorSystem;
  68         this.masterActorRef = masterActorRef;
  69         this.actorResponseWaitTime = actorResponseWaitTime;
  70     }
  71
  72     @Override
  73     public void onDeviceConnected(final MountPointContext mountContext,
  74                                   final NetconfSessionPreferences sessionPreferences,
  75                                   final DOMRpcService domRpcService, final DOMActionService domActionService) {
  76         deviceAction = domActionService;
  77         LOG.debug("{}: YANG 1.1 actions are supported in clustered netconf topology, "
  78             + "DOMActionService exposed for the device", id);
  79         onDeviceConnected(mountContext, sessionPreferences, domRpcService);
  80     }
  81
  82     @Override
  83     public void onDeviceConnected(final MountPointContext mountContext,
  84                                   final NetconfSessionPreferences sessionPreferences,
  85                                   final DOMRpcService domRpcService) {
  86         currentMountContext = mountContext;
  87         netconfSessionPreferences = sessionPreferences;
  88         deviceRpc = domRpcService;
  89
  90         LOG.info("Device {} connected - registering master mount point", id);
  91
  92         registerMasterMountPoint();
  93
  94         sendInitialDataToActor().onComplete(new OnComplete<>() {
  95             @Override
  96             public void onComplete(final Throwable failure, final Object success) {
  97                 if (failure == null) {
  98                     updateDeviceData();
  99                     return;
 100                 }
 101
 102                 LOG.error("{}: CreateInitialMasterActorData to {} failed", id, masterActorRef, failure);
 103             }
 104         }, actorSystem.dispatcher());
 105
 106     }
 107
 108     @Override
 109     public void onDeviceDisconnected() {
 110         LOG.info("Device {} disconnected - unregistering master mount point", id);
 111         salProvider.getTopologyDatastoreAdapter().updateDeviceData(false, new NetconfDeviceCapabilities());
 112         unregisterMasterMountPoint();
 113     }
 114
 115     @Override
 116     public void onDeviceFailed(final Throwable throwable) {
 117         salProvider.getTopologyDatastoreAdapter().setDeviceAsFailed(throwable);
 118         unregisterMasterMountPoint();
 119     }
 120
 121     @Override
 122     public void onNotification(final DOMNotification domNotification) {
 123         salProvider.getMountInstance().publish(domNotification);
 124     }
 125
 126     @Override
 127     public void close() {
 128         unregisterMasterMountPoint();
 129         closeGracefully(salProvider);
 130     }
 131
 132     private void registerMasterMountPoint() {
 133         requireNonNull(id);
 134         requireNonNull(currentMountContext, "Device has no remote schema context yet. Probably not fully connected.");
 135         requireNonNull(netconfSessionPreferences, "Device has no capabilities yet. Probably not fully connected.");
 136
 137         final NetconfDeviceNotificationService notificationService = new NetconfDeviceNotificationService();
 138         deviceDataBroker = newDeviceDataBroker();
 139         netconfService = newNetconfDataTreeService();
 140
 141         // We need to create ProxyDOMDataBroker so accessing mountpoint
 142         // on leader node would be same as on follower node
 143         final ProxyDOMDataBroker proxyDataBroker = new ProxyDOMDataBroker(id, masterActorRef, actorSystem.dispatcher(),
 144             actorResponseWaitTime);
 145         final NetconfDataTreeService proxyNetconfService = new ProxyNetconfDataTreeService(id, masterActorRef,
 146             actorSystem.dispatcher(), actorResponseWaitTime);
 147         salProvider.getMountInstance().onTopologyDeviceConnected(currentMountContext.getEffectiveModelContext(),
 148             proxyDataBroker, proxyNetconfService, deviceRpc, notificationService, deviceAction);
 149     }
 150
 151     protected DOMDataBroker newDeviceDataBroker() {
 152         return new NetconfDeviceDataBroker(id, currentMountContext, deviceRpc, netconfSessionPreferences);
 153     }
 154
 155     protected NetconfDataTreeService newNetconfDataTreeService() {
 156         return AbstractNetconfDataTreeService.of(id, currentMountContext, deviceRpc, netconfSessionPreferences);
 157     }
 158
 159     private Future<Object> sendInitialDataToActor() {
 160         final List<SourceIdentifier> sourceIdentifiers = List.copyOf(SchemaContextUtil.getConstituentModuleIdentifiers(
 161             currentMountContext.getEffectiveModelContext()));
 162
 163         LOG.debug("{}: Sending CreateInitialMasterActorData with sourceIdentifiers {} to {}", id, sourceIdentifiers,
 164             masterActorRef);
 165
 166         // send initial data to master actor
 167         return Patterns.ask(masterActorRef, new CreateInitialMasterActorData(deviceDataBroker, netconfService,
 168             sourceIdentifiers, deviceRpc, deviceAction), actorResponseWaitTime);
 169     }
 170
 171     private void updateDeviceData() {
 172         final String masterAddress = Cluster.get(actorSystem).selfAddress().toString();
 173         LOG.debug("{}: updateDeviceData with master address {}", id, masterAddress);
 174         salProvider.getTopologyDatastoreAdapter().updateClusteredDeviceData(true, masterAddress,
 175                 netconfSessionPreferences.getNetconfDeviceCapabilities());
 176     }
 177
 178     private void unregisterMasterMountPoint() {
 179         salProvider.getMountInstance().onTopologyDeviceDisconnected();
 180     }
 181
 182     @SuppressWarnings("checkstyle:IllegalCatch")
 183     private void closeGracefully(final AutoCloseable resource) {
 184         if (resource != null) {
 185             try {
 186                 resource.close();
 187             } catch (final Exception e) {
 188                 LOG.error("{}: Ignoring exception while closing {}", id, resource, e);
 189             }
 190         }
 191     }
 192 }