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.ArrayList;
  25 import java.util.HashMap;
  26 import java.util.List;
  27 import java.util.Map;
  28 import java.util.Optional;
  29 import javax.annotation.Nullable;
  30 import org.opendaylight.netconf.api.NetconfMessage;
  31 import org.opendaylight.netconf.client.NetconfClientSessionListener;
  32 import org.opendaylight.netconf.client.conf.NetconfClientConfiguration;
  33 import org.opendaylight.netconf.client.conf.NetconfReconnectingClientConfiguration;
  34 import org.opendaylight.netconf.client.conf.NetconfReconnectingClientConfigurationBuilder;
  35 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.AuthenticationHandler;
  36 import org.opendaylight.netconf.nettyutil.handler.ssh.authentication.LoginPassword;
  37 import org.opendaylight.netconf.sal.connect.api.RemoteDevice;
  38 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceHandler;
  39 import org.opendaylight.netconf.sal.connect.netconf.LibraryModulesSchemas;
  40 import org.opendaylight.netconf.sal.connect.netconf.NetconfDevice;
  41 import org.opendaylight.netconf.sal.connect.netconf.NetconfDeviceBuilder;
  42 import org.opendaylight.netconf.sal.connect.netconf.NetconfStateSchemasResolverImpl;
  43 import org.opendaylight.netconf.sal.connect.netconf.SchemalessNetconfDevice;
  44 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCapabilities;
  45 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCommunicator;
  46 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  47 import org.opendaylight.netconf.sal.connect.netconf.listener.UserPreferences;
  48 import org.opendaylight.netconf.sal.connect.netconf.sal.KeepaliveSalFacade;
  49 import org.opendaylight.netconf.sal.connect.netconf.schema.YangLibrarySchemaYangSourceProvider;
  50 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
  51 import org.opendaylight.netconf.topology.singleton.api.RemoteDeviceConnector;
  52 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfConnectorDTO;
  53 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologySetup;
  54 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologyUtils;
  55 import org.opendaylight.protocol.framework.ReconnectStrategy;
  56 import org.opendaylight.protocol.framework.ReconnectStrategyFactory;
  57 import org.opendaylight.protocol.framework.TimedReconnectStrategy;
  58 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Host;
  59 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.available.capabilities.AvailableCapability.CapabilityOrigin;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.Credentials;
  63 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  64 import org.opendaylight.yangtools.yang.model.repo.api.SchemaContextFactory;
  65 import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
  66 import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceFilter;
  67 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
  68 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
  69 import org.opendaylight.yangtools.yang.model.repo.spi.PotentialSchemaSource;
  70 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistration;
  71 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistry;
  72 import org.opendaylight.yangtools.yang.model.repo.util.FilesystemSchemaSourceCache;
  73 import org.opendaylight.yangtools.yang.parser.repo.SharedSchemaRepository;
  74 import org.opendaylight.yangtools.yang.parser.util.TextToASTTransformer;
  75 import org.slf4j.Logger;
  76 import org.slf4j.LoggerFactory;
  77
  78 public class RemoteDeviceConnectorImpl implements RemoteDeviceConnector {
  79
  80     private static final Logger LOG = LoggerFactory.getLogger(RemoteDeviceConnectorImpl.class);
  81
  82     /**
  83      * Keeps track of initialized Schema resources.  A Map is maintained in which the key represents the name
  84      * of the schema cache directory, and the value is a corresponding <code>SchemaResourcesDTO</code>.  The
  85      * <code>SchemaResourcesDTO</code> is essentially a container that allows for the extraction of the
  86      * <code>SchemaRegistry</code> and <code>SchemaContextFactory</code> which should be used for a particular
  87      * Netconf mount.  Access to <code>schemaResourcesDTOs</code> should be surrounded by appropriate
  88      * synchronization locks.
  89      */
  90     private static final Map<String, NetconfDevice.SchemaResourcesDTO> schemaResourcesDTOs = new HashMap<>();
  91
  92     // Initializes default constant instances for the case when the default schema repository
  93     // directory cache/schema is used.
  94     static {
  95         schemaResourcesDTOs.put(NetconfTopologyUtils.DEFAULT_CACHE_DIRECTORY,
  96                 new NetconfDevice.SchemaResourcesDTO(NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY,
  97                         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY,
  98                         NetconfTopologyUtils.DEFAULT_SCHEMA_CONTEXT_FACTORY,
  99                         new NetconfStateSchemasResolverImpl()));
 100         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY.registerSchemaSourceListener(NetconfTopologyUtils.DEFAULT_CACHE);
 101         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY.registerSchemaSourceListener(
 102                 TextToASTTransformer.create(NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY,
 103                         NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY));
 104     }
 105
 106     private final NetconfTopologySetup netconfTopologyDeviceSetup;
 107     private final RemoteDeviceId remoteDeviceId;
 108     private SchemaSourceRegistry schemaRegistry = NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY;
 109     private final SchemaRepository schemaRepository = NetconfTopologyUtils.DEFAULT_SCHEMA_REPOSITORY;
 110     private SchemaContextFactory schemaContextFactory = NetconfTopologyUtils.DEFAULT_SCHEMA_CONTEXT_FACTORY;
 111     private NetconfConnectorDTO deviceCommunicatorDTO;
 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(final NetconfDeviceCapabilities result) {
 140                 LOG.debug("{}: Connector started successfully", remoteDeviceId);
 141             }
 142
 143             @Override
 144             public void onFailure(@Nullable final 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 (final 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         final 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             final 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 (final 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(), node.getNonModuleCapabilities().isOverride()),
 237                         rpcMessageLimit)
 238                         : new NetconfDeviceCommunicator(remoteDeviceId, device, rpcMessageLimit), salFacade);
 239     }
 240
 241     private Optional<NetconfSessionPreferences> getUserCapabilities(final NetconfNode node) {
 242         if (node.getYangModuleCapabilities() == null && node.getNonModuleCapabilities() == null) {
 243             return Optional.empty();
 244         }
 245         final List<String> capabilities = new ArrayList<>();
 246
 247         if (node.getYangModuleCapabilities() != null) {
 248             capabilities.addAll(node.getYangModuleCapabilities().getCapability());
 249         }
 250
 251         //non-module capabilities should not exist in yang module capabilities
 252         final NetconfSessionPreferences netconfSessionPreferences = NetconfSessionPreferences.fromStrings(capabilities);
 253         Preconditions.checkState(netconfSessionPreferences.getNonModuleCaps().isEmpty(), "List yang-module-capabilities/capability " +
 254                 "should contain only module based capabilities. Non-module capabilities used: " +
 255                 netconfSessionPreferences.getNonModuleCaps());
 256
 257         if (node.getNonModuleCapabilities() != null) {
 258             capabilities.addAll(node.getNonModuleCapabilities().getCapability());
 259         }
 260
 261         return Optional.of(NetconfSessionPreferences.fromStrings(capabilities, CapabilityOrigin.UserDefined));
 262     }
 263
 264     private NetconfDevice.SchemaResourcesDTO setupSchemaCacheDTO(final NodeId nodeId, final NetconfNode node) {
 265         // Setup information related to the SchemaRegistry, SchemaResourceFactory, etc.
 266         NetconfDevice.SchemaResourcesDTO schemaResourcesDTO = null;
 267         final String moduleSchemaCacheDirectory = node.getSchemaCacheDirectory();
 268         // Only checks to ensure the String is not empty or null;  further checks related to directory accessibility
 269         // and file permissions are handled during the FilesystemSchemaSourceCache initialization.
 270         if (!Strings.isNullOrEmpty(moduleSchemaCacheDirectory)) {
 271             // If a custom schema cache directory is specified, create the backing DTO; otherwise, the SchemaRegistry
 272             // and SchemaContextFactory remain the default values.
 273             if (!moduleSchemaCacheDirectory.equals(NetconfTopologyUtils.DEFAULT_CACHE_DIRECTORY)) {
 274                 // Multiple modules may be created at once;  synchronize to avoid issues with data consistency among
 275                 // threads.
 276                 synchronized (schemaResourcesDTOs) {
 277                     // Look for the cached DTO to reuse SchemaRegistry and SchemaContextFactory variables if
 278                     // they already exist
 279                     schemaResourcesDTO = schemaResourcesDTOs.get(moduleSchemaCacheDirectory);
 280                     if (schemaResourcesDTO == null) {
 281                         schemaResourcesDTO = createSchemaResourcesDTO(moduleSchemaCacheDirectory);
 282                         schemaResourcesDTO.getSchemaRegistry().registerSchemaSourceListener(
 283                                 TextToASTTransformer.create((SchemaRepository) schemaResourcesDTO.getSchemaRegistry(),
 284                                         schemaResourcesDTO.getSchemaRegistry())
 285                         );
 286                         schemaResourcesDTOs.put(moduleSchemaCacheDirectory, schemaResourcesDTO);
 287                     }
 288                 }
 289                 LOG.info("{} : netconf connector will use schema cache directory {} instead of {}",
 290                         remoteDeviceId, moduleSchemaCacheDirectory, NetconfTopologyUtils.DEFAULT_CACHE_DIRECTORY);
 291             }
 292         } else {
 293             LOG.info("{} : using the default directory {}",
 294                     remoteDeviceId, NetconfTopologyUtils.QUALIFIED_DEFAULT_CACHE_DIRECTORY);
 295         }
 296
 297         if (schemaResourcesDTO == null) {
 298             schemaResourcesDTO =
 299                     new NetconfDevice.SchemaResourcesDTO(schemaRegistry, schemaRepository, schemaContextFactory,
 300                             new NetconfStateSchemasResolverImpl());
 301         }
 302
 303         return schemaResourcesDTO;
 304     }
 305
 306     /**
 307      * Creates the backing Schema classes for a particular directory.
 308      *
 309      * @param moduleSchemaCacheDirectory The string directory relative to "cache"
 310      * @return A DTO containing the Schema classes for the Netconf mount.
 311      */
 312     private NetconfDevice.SchemaResourcesDTO createSchemaResourcesDTO(final String moduleSchemaCacheDirectory) {
 313         final SharedSchemaRepository repository = new SharedSchemaRepository(moduleSchemaCacheDirectory);
 314         final SchemaContextFactory schemaContextFactory
 315                 = repository.createSchemaContextFactory(SchemaSourceFilter.ALWAYS_ACCEPT);
 316         this.schemaRegistry = repository;
 317         this.schemaContextFactory = schemaContextFactory;
 318
 319         final FilesystemSchemaSourceCache<YangTextSchemaSource> deviceCache =
 320                 createDeviceFilesystemCache(moduleSchemaCacheDirectory);
 321         repository.registerSchemaSourceListener(deviceCache);
 322         return new NetconfDevice.SchemaResourcesDTO(repository, repository, schemaContextFactory,
 323                 new NetconfStateSchemasResolverImpl());
 324     }
 325
 326     /**
 327      * Creates a <code>FilesystemSchemaSourceCache</code> for the custom schema cache directory.
 328      *
 329      * @param schemaCacheDirectory The custom cache directory relative to "cache"
 330      * @return A <code>FilesystemSchemaSourceCache</code> for the custom schema cache directory
 331      */
 332     private FilesystemSchemaSourceCache<YangTextSchemaSource> createDeviceFilesystemCache(
 333             final String schemaCacheDirectory) {
 334         final String relativeSchemaCacheDirectory =
 335                 NetconfTopologyUtils.CACHE_DIRECTORY + File.separator + schemaCacheDirectory;
 336         return new FilesystemSchemaSourceCache<>(schemaRegistry, YangTextSchemaSource.class,
 337                 new File(relativeSchemaCacheDirectory));
 338     }
 339
 340     //TODO: duplicate code
 341     private InetSocketAddress getSocketAddress(final Host host, final int port) {
 342         if (host.getDomainName() != null) {
 343             return new InetSocketAddress(host.getDomainName().getValue(), port);
 344         } else {
 345             final IpAddress ipAddress = host.getIpAddress();
 346             final String ip = ipAddress.getIpv4Address() != null ? ipAddress.getIpv4Address().getValue() :
 347                     ipAddress.getIpv6Address().getValue();
 348             return new InetSocketAddress(ip, port);
 349         }
 350     }
 351
 352     @VisibleForTesting
 353     NetconfReconnectingClientConfiguration getClientConfig(final NetconfClientSessionListener listener,
 354                                                            final NetconfNode node) {
 355
 356         //setup default values since default value is not supported in mdsal
 357         final long clientConnectionTimeoutMillis = node.getConnectionTimeoutMillis() == null
 358                 ? NetconfTopologyUtils.DEFAULT_CONNECTION_TIMEOUT_MILLIS : node.getConnectionTimeoutMillis();
 359         final long maxConnectionAttempts = node.getMaxConnectionAttempts() == null
 360                 ? NetconfTopologyUtils.DEFAULT_MAX_CONNECTION_ATTEMPTS : node.getMaxConnectionAttempts();
 361         final int betweenAttemptsTimeoutMillis = node.getBetweenAttemptsTimeoutMillis() == null
 362                 ? NetconfTopologyUtils.DEFAULT_BETWEEN_ATTEMPTS_TIMEOUT_MILLIS : node.getBetweenAttemptsTimeoutMillis();
 363         final BigDecimal sleepFactor = node.getSleepFactor() == null
 364                 ? NetconfTopologyUtils.DEFAULT_SLEEP_FACTOR : node.getSleepFactor();
 365
 366         final InetSocketAddress socketAddress = getSocketAddress(node.getHost(), node.getPort().getValue());
 367
 368         final ReconnectStrategyFactory sf =
 369                 new TimedReconnectStrategyFactory(netconfTopologyDeviceSetup.getEventExecutor(), maxConnectionAttempts,
 370                         betweenAttemptsTimeoutMillis, sleepFactor);
 371         final ReconnectStrategy strategy = sf.createReconnectStrategy();
 372
 373         final AuthenticationHandler authHandler;
 374         final Credentials credentials = node.getCredentials();
 375         if (credentials instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPassword) {
 376             authHandler = new LoginPassword(
 377                     ((org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPassword) credentials).getUsername(),
 378                     ((org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPassword) credentials).getPassword());
 379         } else {
 380             throw new IllegalStateException(remoteDeviceId + ": Only login/password authentication is supported");
 381         }
 382
 383         return NetconfReconnectingClientConfigurationBuilder.create()
 384                 .withAddress(socketAddress)
 385                 .withConnectionTimeoutMillis(clientConnectionTimeoutMillis)
 386                 .withReconnectStrategy(strategy)
 387                 .withAuthHandler(authHandler)
 388                 .withProtocol(node.isTcpOnly()
 389                         ? NetconfClientConfiguration.NetconfClientProtocol.TCP
 390                         : NetconfClientConfiguration.NetconfClientProtocol.SSH)
 391                 .withConnectStrategyFactory(sf)
 392                 .withSessionListener(listener)
 393                 .build();
 394     }
 395
 396     @VisibleForTesting
 397     Map<String, NetconfDevice.SchemaResourcesDTO> getSchemaResourcesDTOs() {
 398         return schemaResourcesDTOs;
 399     }
 400
 401     private static final class TimedReconnectStrategyFactory implements ReconnectStrategyFactory {
 402         private final Long connectionAttempts;
 403         private final EventExecutor executor;
 404         private final double sleepFactor;
 405         private final int minSleep;
 406
 407         TimedReconnectStrategyFactory(final EventExecutor executor, final Long maxConnectionAttempts,
 408                                       final int minSleep, final BigDecimal sleepFactor) {
 409             if (maxConnectionAttempts != null && maxConnectionAttempts > 0) {
 410                 connectionAttempts = maxConnectionAttempts;
 411             } else {
 412                 connectionAttempts = null;
 413             }
 414
 415             this.sleepFactor = sleepFactor.doubleValue();
 416             this.executor = executor;
 417             this.minSleep = minSleep;
 418         }
 419
 420         @Override
 421         public ReconnectStrategy createReconnectStrategy() {
 422             final Long maxSleep = null;
 423             final Long deadline = null;
 424
 425             return new TimedReconnectStrategy(executor, minSleep,
 426                     minSleep, sleepFactor, maxSleep, connectionAttempts, deadline);
 427         }
 428     }
 429 }