netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/RemoteDeviceConnectorImpl.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
   9 package org.opendaylight.netconf.topology.singleton.impl;
  10
  11 import akka.actor.ActorRef;
  12 import com.google.common.annotations.VisibleForTesting;
  13 import com.google.common.base.Preconditions;
  14 import com.google.common.base.Strings;
  15 import com.google.common.collect.Lists;
  16 import com.google.common.util.concurrent.FutureCallback;
  17 import com.google.common.util.concurrent.Futures;
  18 import com.google.common.util.concurrent.ListenableFuture;
  19 import io.netty.util.concurrent.EventExecutor;
  20 import java.io.File;
  21 import java.math.BigDecimal;
  22 import java.net.InetSocketAddress;
  23 import java.net.URL;
  24 import java.util.HashMap;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Optional;
  28 import javax.annotation.Nullable;
  29 import org.opendaylight.netconf.api.NetconfMessage;
  30 import org.opendaylight.netconf.client.NetconfClientSessionListener;
  31 import org.opendaylight.netconf.client.conf.NetconfClientConfiguration;
  32 import org.opendaylight.netconf.client.conf.NetconfReconnectingClientConfiguration;
  33 import org.opendaylight.netconf.client.conf.NetconfReconnectingClientConfigurationBuilder;
  34 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.AuthenticationHandler;
  35 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.LoginPassword;
  36 import org.opendaylight.netconf.sal.connect.api.RemoteDevice;
  37 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceHandler;
  38 import org.opendaylight.netconf.sal.connect.netconf.LibraryModulesSchemas;
  39 import org.opendaylight.netconf.sal.connect.netconf.NetconfDevice;
  40 import org.opendaylight.netconf.sal.connect.netconf.NetconfDeviceBuilder;
  41 import org.opendaylight.netconf.sal.connect.netconf.NetconfStateSchemasResolverImpl;
  42 import org.opendaylight.netconf.sal.connect.netconf.SchemalessNetconfDevice;
  43 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCapabilities;
  44 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCommunicator;
  45 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  46 import org.opendaylight.netconf.sal.connect.netconf.listener.UserPreferences;
  47 import org.opendaylight.netconf.sal.connect.netconf.sal.KeepaliveSalFacade;
  48 import org.opendaylight.netconf.sal.connect.netconf.schema.YangLibrarySchemaYangSourceProvider;
  49 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  50 import org.opendaylight.netconf.topology.singleton.api.RemoteDeviceConnector;
  51 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfConnectorDTO;
  52 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologySetup;
  53 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologyUtils;
  54 import org.opendaylight.protocol.framework.ReconnectStrategy;
  55 import org.opendaylight.protocol.framework.ReconnectStrategyFactory;
  56 import org.opendaylight.protocol.framework.TimedReconnectStrategy;
  57 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Host;
  58 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.Credentials;
  61 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  62 import org.opendaylight.yangtools.yang.model.repo.api.SchemaContextFactory;
  63 import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
  64 import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceFilter;
  65 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
  66 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
  67 import org.opendaylight.yangtools.yang.model.repo.spi.PotentialSchemaSource;
  68 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistration;
  69 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistry;
  70 import org.opendaylight.yangtools.yang.model.repo.util.FilesystemSchemaSourceCache;
  71 import org.opendaylight.yangtools.yang.parser.repo.SharedSchemaRepository;
  72 import org.opendaylight.yangtools.yang.parser.util.TextToASTTransformer;
  73 import org.slf4j.Logger;
  74 import org.slf4j.LoggerFactory;
  75
  76 public class RemoteDeviceConnectorImpl implements RemoteDeviceConnector {
  77
  78     private static final Logger LOG = LoggerFactory.getLogger(RemoteDeviceConnectorImpl.class);
  79
  80     /**
  81      * Keeps track of initialized Schema resources.  A Map is maintained in which the key represents the name
  82      * of the schema cache directory, and the value is a corresponding <code>SchemaResourcesDTO</code>.  The
  83      * <code>SchemaResourcesDTO</code> is essentially a container that allows for the extraction of the
  84      * <code>SchemaRegistry</code> and <code>SchemaContextFactory</code> which should be used for a particular
  85      * Netconf mount.  Access to <code>schemaResourcesDTOs</code> should be surrounded by appropriate
  86      * synchronization locks.
  87      */
  88     private static final Map<String, NetconfDevice.SchemaResourcesDTO> schemaResourcesDTOs = new HashMap<>();
  89
  90     private SchemaSourceRegistry schemaRegistry = NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY;
  91     private SchemaRepository schemaRepository = NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY;
  92
  93     private final NetconfTopologySetup netconfTopologyDeviceSetup;
  94     private final RemoteDeviceId remoteDeviceId;
  95
  96     private SchemaContextFactory schemaContextFactory = NetconfTopologyUtils.DEFAULT_SCHEMA_CONTEXT_FACTORY;
  97     private NetconfConnectorDTO deviceCommunicatorDTO;
  98
  99     // Initializes default constant instances for the case when the default schema repository
 100     // directory cache/schema is used.
 101     static {
 102         schemaResourcesDTOs.put(NetconfTopologyUtils.DEFAULT_CACHE_DIRECTORY,
 103                 new NetconfDevice.SchemaResourcesDTO(NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY,
 104                         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY,
 105                         NetconfTopologyUtils.DEFAULT_SCHEMA_CONTEXT_FACTORY,
 106                         new NetconfStateSchemasResolverImpl()));
 107         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY.registerSchemaSourceListener(NetconfTopologyUtils.DEFAULT_CACHE);
 108         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY.registerSchemaSourceListener(
 109                 TextToASTTransformer.create(NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY,
 110                         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY));
 111     }
 112
 113     public RemoteDeviceConnectorImpl(final NetconfTopologySetup netconfTopologyDeviceSetup,
 114                                      final RemoteDeviceId remoteDeviceId) {
 115
 116         this.netconfTopologyDeviceSetup = Preconditions.checkNotNull(netconfTopologyDeviceSetup);
 117         this.remoteDeviceId = remoteDeviceId;
 118     }
 119
 120     @Override
 121     public void startRemoteDeviceConnection(final ActorRef deviceContextActorRef) {
 122
 123         final NetconfNode netconfNode = netconfTopologyDeviceSetup.getNode().getAugmentation(NetconfNode.class);
 124         final NodeId nodeId = netconfTopologyDeviceSetup.getNode().getNodeId();
 125         Preconditions.checkNotNull(netconfNode.getHost());
 126         Preconditions.checkNotNull(netconfNode.getPort());
 127         Preconditions.checkNotNull(netconfNode.isTcpOnly());
 128
 129         this.deviceCommunicatorDTO = createDeviceCommunicator(nodeId, netconfNode, deviceContextActorRef);
 130         final NetconfDeviceCommunicator deviceCommunicator = deviceCommunicatorDTO.getCommunicator();
 131         final NetconfClientSessionListener netconfClientSessionListener = deviceCommunicatorDTO.getSessionListener();
 132         final NetconfReconnectingClientConfiguration clientConfig =
 133                 getClientConfig(netconfClientSessionListener, netconfNode);
 134         final ListenableFuture<NetconfDeviceCapabilities> future = deviceCommunicator
 135                 .initializeRemoteConnection(netconfTopologyDeviceSetup.getNetconfClientDispatcher(), clientConfig);
 136
 137         Futures.addCallback(future, new FutureCallback<NetconfDeviceCapabilities>() {
 138             @Override
 139             public void onSuccess(NetconfDeviceCapabilities result) {
 140                 LOG.debug("{}: Connector started successfully", remoteDeviceId);
 141             }
 142
 143             @Override
 144             public void onFailure(@Nullable Throwable throwable) {
 145                 LOG.error("{}: Connector failed, {}", remoteDeviceId, throwable);
 146             }
 147         });
 148     }
 149
 150     @Override
 151     public void stopRemoteDeviceConnection() {
 152         Preconditions.checkNotNull(deviceCommunicatorDTO, remoteDeviceId + ": Device communicator was not created.");
 153         try {
 154             deviceCommunicatorDTO.close();
 155         } catch (Exception e) {
 156             LOG.error("{}: Error at closing device communicator.", remoteDeviceId, e);
 157         }
 158     }
 159
 160     @VisibleForTesting
 161     NetconfConnectorDTO createDeviceCommunicator(final NodeId nodeId, final NetconfNode node,
 162                                                          final ActorRef deviceContextActorRef) {
 163         //setup default values since default value is not supported in mdsal
 164         final Long defaultRequestTimeoutMillis = node.getDefaultRequestTimeoutMillis() == null
 165                 ? NetconfTopologyUtils.DEFAULT_REQUEST_TIMEOUT_MILLIS : node.getDefaultRequestTimeoutMillis();
 166         final Long keepaliveDelay = node.getKeepaliveDelay() == null
 167                 ? NetconfTopologyUtils.DEFAULT_KEEPALIVE_DELAY : node.getKeepaliveDelay();
 168         final Boolean reconnectOnChangedSchema = node.isReconnectOnChangedSchema() == null
 169                 ? NetconfTopologyUtils.DEFAULT_RECONNECT_ON_CHANGED_SCHEMA : node.isReconnectOnChangedSchema();
 170
 171         RemoteDeviceHandler<NetconfSessionPreferences> salFacade =  new MasterSalFacade(remoteDeviceId,
 172                 netconfTopologyDeviceSetup.getDomBroker(), netconfTopologyDeviceSetup.getBindingAwareBroker(),
 173                 netconfTopologyDeviceSetup.getActorSystem(), deviceContextActorRef);
 174         if (keepaliveDelay > 0) {
 175             LOG.info("{}: Adding keepalive facade.", remoteDeviceId);
 176             salFacade = new KeepaliveSalFacade(remoteDeviceId, salFacade,
 177                     netconfTopologyDeviceSetup.getKeepaliveExecutor().getExecutor(), keepaliveDelay,
 178                     defaultRequestTimeoutMillis);
 179         }
 180
 181         // pre register yang library sources as fallback schemas to schema registry
 182         List<SchemaSourceRegistration<YangTextSchemaSource>> registeredYangLibSources = Lists.newArrayList();
 183         if (node.getYangLibrary() != null) {
 184             final String yangLibURL = node.getYangLibrary().getYangLibraryUrl().getValue();
 185             final String yangLibUsername = node.getYangLibrary().getUsername();
 186             final String yangLigPassword = node.getYangLibrary().getPassword();
 187
 188             LibraryModulesSchemas libraryModulesSchemas;
 189             if (yangLibURL != null) {
 190                 if (yangLibUsername != null && yangLigPassword != null) {
 191                     libraryModulesSchemas = LibraryModulesSchemas.create(yangLibURL, yangLibUsername, yangLigPassword);
 192                 } else {
 193                     libraryModulesSchemas = LibraryModulesSchemas.create(yangLibURL);
 194                 }
 195
 196                 for (Map.Entry<SourceIdentifier, URL> sourceIdentifierURLEntry :
 197                         libraryModulesSchemas.getAvailableModels().entrySet()) {
 198                     registeredYangLibSources
 199                             .add(schemaRegistry.registerSchemaSource(
 200                                     new YangLibrarySchemaYangSourceProvider(remoteDeviceId,
 201                                             libraryModulesSchemas.getAvailableModels()),
 202                                     PotentialSchemaSource
 203                                             .create(sourceIdentifierURLEntry.getKey(), YangTextSchemaSource.class,
 204                                                     PotentialSchemaSource.Costs.REMOTE_IO.getValue())));
 205                 }
 206             }
 207         }
 208
 209         final NetconfDevice.SchemaResourcesDTO schemaResourcesDTO = setupSchemaCacheDTO(nodeId, node);
 210         final RemoteDevice<NetconfSessionPreferences, NetconfMessage, NetconfDeviceCommunicator> device;
 211         if (node.isSchemaless()) {
 212             device = new SchemalessNetconfDevice(remoteDeviceId, salFacade);
 213         } else {
 214             device = new NetconfDeviceBuilder()
 215                     .setReconnectOnSchemasChange(reconnectOnChangedSchema)
 216                     .setSchemaResourcesDTO(schemaResourcesDTO)
 217                     .setGlobalProcessingExecutor(netconfTopologyDeviceSetup.getProcessingExecutor().getExecutor())
 218                     .setId(remoteDeviceId)
 219                     .setSalFacade(salFacade)
 220                     .build();
 221         }
 222
 223         final Optional<NetconfSessionPreferences> userCapabilities = getUserCapabilities(node);
 224         final int rpcMessageLimit =
 225                 node.getConcurrentRpcLimit() == null
 226                         ? NetconfTopologyUtils.DEFAULT_CONCURRENT_RPC_LIMIT : node.getConcurrentRpcLimit();
 227
 228         if (rpcMessageLimit < 1) {
 229             LOG.info("{}: Concurrent rpc limit is smaller than 1, no limit will be enforced.", remoteDeviceId);
 230         }
 231
 232         return new NetconfConnectorDTO(
 233                 userCapabilities.isPresent()
 234                         ? new NetconfDeviceCommunicator(
 235                                 remoteDeviceId, device, new UserPreferences(userCapabilities.get(),
 236                                 node.getYangModuleCapabilities().isOverride()), rpcMessageLimit) :
 237                         new NetconfDeviceCommunicator(remoteDeviceId, device, rpcMessageLimit), salFacade);
 238     }
 239
 240     private Optional<NetconfSessionPreferences> getUserCapabilities(final NetconfNode node) {
 241         if (node.getYangModuleCapabilities() == null) {
 242             return Optional.empty();
 243         }
 244
 245         final List<String> capabilities = node.getYangModuleCapabilities().getCapability();
 246         if (capabilities == null || capabilities.isEmpty()) {
 247             return Optional.empty();
 248         }
 249
 250         final NetconfSessionPreferences parsedOverrideCapabilities =
 251                 NetconfSessionPreferences.fromStrings(capabilities);
 252         Preconditions.checkState(parsedOverrideCapabilities.getNonModuleCaps().isEmpty(), remoteDeviceId +
 253                 ": Capabilities to override can only contain module based capabilities, non-module capabilities "
 254                         + "will be retrieved from the device, configured non-module capabilities: "
 255                         + parsedOverrideCapabilities.getNonModuleCaps());
 256
 257         return Optional.of(parsedOverrideCapabilities);
 258     }
 259
 260     private NetconfDevice.SchemaResourcesDTO setupSchemaCacheDTO(final NodeId nodeId, final NetconfNode node) {
 261         // Setup information related to the SchemaRegistry, SchemaResourceFactory, etc.
 262         NetconfDevice.SchemaResourcesDTO schemaResourcesDTO = null;
 263         final String moduleSchemaCacheDirectory = node.getSchemaCacheDirectory();
 264         // Only checks to ensure the String is not empty or null;  further checks related to directory accessibility
 265         // and file permissions are handled during the FilesystemSchemaSourceCache initialization.
 266         if (!Strings.isNullOrEmpty(moduleSchemaCacheDirectory)) {
 267             // If a custom schema cache directory is specified, create the backing DTO; otherwise, the SchemaRegistry
 268             // and SchemaContextFactory remain the default values.
 269             if (!moduleSchemaCacheDirectory.equals(NetconfTopologyUtils.DEFAULT_CACHE_DIRECTORY)) {
 270                 // Multiple modules may be created at once;  synchronize to avoid issues with data consistency among
 271                 // threads.
 272                 synchronized (schemaResourcesDTOs) {
 273                     // Look for the cached DTO to reuse SchemaRegistry and SchemaContextFactory variables if
 274                     // they already exist
 275                     schemaResourcesDTO = schemaResourcesDTOs.get(moduleSchemaCacheDirectory);
 276                     if (schemaResourcesDTO == null) {
 277                         schemaResourcesDTO = createSchemaResourcesDTO(moduleSchemaCacheDirectory);
 278                         schemaResourcesDTO.getSchemaRegistry().registerSchemaSourceListener(
 279                                 TextToASTTransformer.create((SchemaRepository) schemaResourcesDTO.getSchemaRegistry(),
 280                                         schemaResourcesDTO.getSchemaRegistry())
 281                         );
 282                         schemaResourcesDTOs.put(moduleSchemaCacheDirectory, schemaResourcesDTO);
 283                     }
 284                 }
 285                 LOG.info("{} : netconf connector will use schema cache directory {} instead of {}",
 286                         remoteDeviceId, moduleSchemaCacheDirectory, NetconfTopologyUtils.DEFAULT_CACHE_DIRECTORY);
 287             }
 288         } else {
 289             LOG.info("{} : using the default directory {}",
 290                     remoteDeviceId, NetconfTopologyUtils.QUALIFIED_DEFAULT_CACHE_DIRECTORY);
 291         }
 292
 293         if (schemaResourcesDTO == null) {
 294             schemaResourcesDTO =
 295                     new NetconfDevice.SchemaResourcesDTO(schemaRegistry, schemaRepository, schemaContextFactory,
 296                             new NetconfStateSchemasResolverImpl());
 297         }
 298
 299         return schemaResourcesDTO;
 300     }
 301
 302     /**
 303      * Creates the backing Schema classes for a particular directory.
 304      *
 305      * @param moduleSchemaCacheDirectory The string directory relative to "cache"
 306      * @return A DTO containing the Schema classes for the Netconf mount.
 307      */
 308     private NetconfDevice.SchemaResourcesDTO createSchemaResourcesDTO(final String moduleSchemaCacheDirectory) {
 309         final SharedSchemaRepository repository = new SharedSchemaRepository(moduleSchemaCacheDirectory);
 310         final SchemaContextFactory schemaContextFactory
 311                 = repository.createSchemaContextFactory(SchemaSourceFilter.ALWAYS_ACCEPT);
 312         this.schemaRegistry = repository;
 313         this.schemaContextFactory = schemaContextFactory;
 314
 315         final FilesystemSchemaSourceCache<YangTextSchemaSource> deviceCache =
 316                 createDeviceFilesystemCache(moduleSchemaCacheDirectory);
 317         repository.registerSchemaSourceListener(deviceCache);
 318         return new NetconfDevice.SchemaResourcesDTO(repository, repository, schemaContextFactory,
 319                 new NetconfStateSchemasResolverImpl());
 320     }
 321
 322     /**
 323      * Creates a <code>FilesystemSchemaSourceCache</code> for the custom schema cache directory.
 324      *
 325      * @param schemaCacheDirectory The custom cache directory relative to "cache"
 326      * @return A <code>FilesystemSchemaSourceCache</code> for the custom schema cache directory
 327      */
 328     private FilesystemSchemaSourceCache<YangTextSchemaSource> createDeviceFilesystemCache(
 329             final String schemaCacheDirectory) {
 330         final String relativeSchemaCacheDirectory =
 331                 NetconfTopologyUtils.CACHE_DIRECTORY + File.separator + schemaCacheDirectory;
 332         return new FilesystemSchemaSourceCache<>(schemaRegistry, YangTextSchemaSource.class,
 333                 new File(relativeSchemaCacheDirectory));
 334     }
 335
 336     //TODO: duplicate code
 337     private InetSocketAddress getSocketAddress(final Host host, int port) {
 338         if (host.getDomainName() != null) {
 339             return new InetSocketAddress(host.getDomainName().getValue(), port);
 340         } else {
 341             final IpAddress ipAddress = host.getIpAddress();
 342             final String ip = ipAddress.getIpv4Address() != null ? ipAddress.getIpv4Address().getValue() :
 343                     ipAddress.getIpv6Address().getValue();
 344             return new InetSocketAddress(ip, port);
 345         }
 346     }
 347
 348     private static final class TimedReconnectStrategyFactory implements ReconnectStrategyFactory {
 349         private final Long connectionAttempts;
 350         private final EventExecutor executor;
 351         private final double sleepFactor;
 352         private final int minSleep;
 353
 354         TimedReconnectStrategyFactory(final EventExecutor executor, final Long maxConnectionAttempts,
 355                                       final int minSleep, final BigDecimal sleepFactor) {
 356             if (maxConnectionAttempts != null && maxConnectionAttempts > 0) {
 357                 connectionAttempts = maxConnectionAttempts;
 358             } else {
 359                 connectionAttempts = null;
 360             }
 361
 362             this.sleepFactor = sleepFactor.doubleValue();
 363             this.executor = executor;
 364             this.minSleep = minSleep;
 365         }
 366
 367         @Override
 368         public ReconnectStrategy createReconnectStrategy() {
 369             final Long maxSleep = null;
 370             final Long deadline = null;
 371
 372             return new TimedReconnectStrategy(executor, minSleep,
 373                     minSleep, sleepFactor, maxSleep, connectionAttempts, deadline);
 374         }
 375     }
 376
 377     @VisibleForTesting
 378     NetconfReconnectingClientConfiguration getClientConfig(final NetconfClientSessionListener listener,
 379                                                                    final NetconfNode node) {
 380
 381         //setup default values since default value is not supported in mdsal
 382         final long clientConnectionTimeoutMillis = node.getConnectionTimeoutMillis() == null
 383                 ? NetconfTopologyUtils.DEFAULT_CONNECTION_TIMEOUT_MILLIS : node.getConnectionTimeoutMillis();
 384         final long maxConnectionAttempts = node.getMaxConnectionAttempts() == null
 385                 ? NetconfTopologyUtils.DEFAULT_MAX_CONNECTION_ATTEMPTS : node.getMaxConnectionAttempts();
 386         final int betweenAttemptsTimeoutMillis = node.getBetweenAttemptsTimeoutMillis() == null
 387                 ? NetconfTopologyUtils.DEFAULT_BETWEEN_ATTEMPTS_TIMEOUT_MILLIS : node.getBetweenAttemptsTimeoutMillis();
 388         final BigDecimal sleepFactor = node.getSleepFactor() == null
 389                 ? NetconfTopologyUtils.DEFAULT_SLEEP_FACTOR : node.getSleepFactor();
 390
 391         final InetSocketAddress socketAddress = getSocketAddress(node.getHost(), node.getPort().getValue());
 392
 393         final ReconnectStrategyFactory sf =
 394                 new TimedReconnectStrategyFactory(netconfTopologyDeviceSetup.getEventExecutor(), maxConnectionAttempts,
 395                         betweenAttemptsTimeoutMillis, sleepFactor);
 396         final ReconnectStrategy strategy = sf.createReconnectStrategy();
 397
 398         final AuthenticationHandler authHandler;
 399         final Credentials credentials = node.getCredentials();
 400         if (credentials instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPassword) {
 401             authHandler = new LoginPassword(
 402                     ((org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPassword) credentials).getUsername(),
 403                     ((org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPassword) credentials).getPassword());
 404         } else {
 405             throw new IllegalStateException(remoteDeviceId + ": Only login/password authentication is supported");
 406         }
 407
 408         return NetconfReconnectingClientConfigurationBuilder.create()
 409                 .withAddress(socketAddress)
 410                 .withConnectionTimeoutMillis(clientConnectionTimeoutMillis)
 411                 .withReconnectStrategy(strategy)
 412                 .withAuthHandler(authHandler)
 413                 .withProtocol(node.isTcpOnly()
 414                         ? NetconfClientConfiguration.NetconfClientProtocol.TCP
 415                         : NetconfClientConfiguration.NetconfClientProtocol.SSH)
 416                 .withConnectStrategyFactory(sf)
 417                 .withSessionListener(listener)
 418                 .build();
 419     }
 420
 421     @VisibleForTesting
 422     Map<String, NetconfDevice.SchemaResourcesDTO> getSchemaResourcesDTOs() {
 423         return schemaResourcesDTOs;
 424     }
 425 }