apps/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/actors/NetconfNodeActor.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.actors;
   9
  10 import akka.actor.ActorRef;
  11 import akka.actor.Props;
  12 import akka.actor.Status.Failure;
  13 import akka.actor.Status.Success;
  14 import akka.pattern.AskTimeoutException;
  15 import akka.util.Timeout;
  16 import com.google.common.base.Throwables;
  17 import com.google.common.util.concurrent.FutureCallback;
  18 import com.google.common.util.concurrent.Futures;
  19 import com.google.common.util.concurrent.ListenableFuture;
  20 import com.google.common.util.concurrent.MoreExecutors;
  21 import java.io.IOException;
  22 import java.time.Duration;
  23 import java.util.List;
  24 import java.util.stream.Collectors;
  25 import org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor;
  26 import org.opendaylight.controller.cluster.schema.provider.RemoteYangTextSourceProvider;
  27 import org.opendaylight.controller.cluster.schema.provider.impl.RemoteSchemaProvider;
  28 import org.opendaylight.controller.cluster.schema.provider.impl.YangTextSchemaSourceSerializationProxy;
  29 import org.opendaylight.mdsal.dom.api.DOMActionResult;
  30 import org.opendaylight.mdsal.dom.api.DOMActionService;
  31 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  32 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  33 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadTransaction;
  34 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadWriteTransaction;
  35 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
  36 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  37 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
  38 import org.opendaylight.mdsal.dom.api.DOMRpcService;
  39 import org.opendaylight.netconf.client.mdsal.api.RemoteDeviceId;
  40 import org.opendaylight.netconf.client.mdsal.api.RemoteDeviceServices;
  41 import org.opendaylight.netconf.client.mdsal.api.RemoteDeviceServices.Actions;
  42 import org.opendaylight.netconf.client.mdsal.api.RemoteDeviceServices.Rpcs;
  43 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
  44 import org.opendaylight.netconf.topology.singleton.impl.ProxyDOMActionService;
  45 import org.opendaylight.netconf.topology.singleton.impl.ProxyDOMRpcService;
  46 import org.opendaylight.netconf.topology.singleton.impl.ProxyYangTextSourceProvider;
  47 import org.opendaylight.netconf.topology.singleton.impl.SlaveSalFacade;
  48 import org.opendaylight.netconf.topology.singleton.impl.utils.NetconfTopologySetup;
  49 import org.opendaylight.netconf.topology.singleton.messages.AskForMasterMountPoint;
  50 import org.opendaylight.netconf.topology.singleton.messages.ContainerNodeMessage;
  51 import org.opendaylight.netconf.topology.singleton.messages.CreateInitialMasterActorData;
  52 import org.opendaylight.netconf.topology.singleton.messages.MasterActorDataInitialized;
  53 import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
  54 import org.opendaylight.netconf.topology.singleton.messages.NotMasterException;
  55 import org.opendaylight.netconf.topology.singleton.messages.RefreshSetupMasterActorData;
  56 import org.opendaylight.netconf.topology.singleton.messages.RefreshSlaveActor;
  57 import org.opendaylight.netconf.topology.singleton.messages.RegisterMountPoint;
  58 import org.opendaylight.netconf.topology.singleton.messages.UnregisterSlaveMountPoint;
  59 import org.opendaylight.netconf.topology.singleton.messages.YangTextSchemaSourceRequest;
  60 import org.opendaylight.netconf.topology.singleton.messages.action.InvokeActionMessage;
  61 import org.opendaylight.netconf.topology.singleton.messages.action.InvokeActionMessageReply;
  62 import org.opendaylight.netconf.topology.singleton.messages.netconf.NetconfDataTreeServiceRequest;
  63 import org.opendaylight.netconf.topology.singleton.messages.rpc.InvokeRpcMessage;
  64 import org.opendaylight.netconf.topology.singleton.messages.rpc.InvokeRpcMessageReply;
  65 import org.opendaylight.netconf.topology.singleton.messages.transactions.EmptyResultResponse;
  66 import org.opendaylight.netconf.topology.singleton.messages.transactions.NewReadTransactionRequest;
  67 import org.opendaylight.netconf.topology.singleton.messages.transactions.NewReadWriteTransactionRequest;
  68 import org.opendaylight.netconf.topology.singleton.messages.transactions.NewWriteTransactionRequest;
  69 import org.opendaylight.yangtools.concepts.Registration;
  70 import org.opendaylight.yangtools.yang.common.QName;
  71 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  72 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  73 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  74 import org.opendaylight.yangtools.yang.model.api.source.SourceIdentifier;
  75 import org.opendaylight.yangtools.yang.model.api.source.YangTextSource;
  76 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  77 import org.opendaylight.yangtools.yang.model.repo.api.EffectiveModelContextFactory;
  78 import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
  79 import org.opendaylight.yangtools.yang.model.repo.spi.PotentialSchemaSource;
  80 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistry;
  81
  82 public class NetconfNodeActor extends AbstractUntypedActor {
  83     private final Duration writeTxIdleTimeout;
  84     private final DOMMountPointService mountPointService;
  85
  86     private SchemaSourceRegistry schemaRegistry;
  87     private SchemaRepository schemaRepository;
  88     private Timeout actorResponseWaitTime;
  89     private RemoteDeviceId id;
  90     private NetconfTopologySetup setup;
  91     private List<SourceIdentifier> sourceIdentifiers = null;
  92     private DOMRpcService deviceRpc = null;
  93     private DOMActionService deviceAction = null;
  94     private SlaveSalFacade slaveSalManager;
  95     private DOMDataBroker deviceDataBroker;
  96     private NetconfDataTreeService netconfService;
  97     //readTxActor can be shared
  98     private ActorRef readTxActor;
  99     private List<Registration> registeredSchemas;
 100
 101     public static Props props(final NetconfTopologySetup setup, final RemoteDeviceId id,
 102             final Timeout actorResponseWaitTime, final DOMMountPointService mountPointService) {
 103         return Props.create(NetconfNodeActor.class, () ->
 104                 new NetconfNodeActor(setup, id, actorResponseWaitTime, mountPointService));
 105     }
 106
 107     protected NetconfNodeActor(final NetconfTopologySetup setup,
 108                                final RemoteDeviceId id, final Timeout actorResponseWaitTime,
 109                                final DOMMountPointService mountPointService) {
 110         this.setup = setup;
 111         this.id = id;
 112         schemaRegistry = setup.getSchemaResourcesDTO().getSchemaRegistry();
 113         schemaRepository = setup.getSchemaResourcesDTO().getSchemaRepository();
 114         this.actorResponseWaitTime = actorResponseWaitTime;
 115         writeTxIdleTimeout = setup.getIdleTimeout();
 116         this.mountPointService = mountPointService;
 117     }
 118
 119     @SuppressWarnings("checkstyle:IllegalCatch")
 120     @Override
 121     public void handleReceive(final Object message) {
 122         LOG.debug("{}:  received message {}", id, message);
 123
 124         if (message instanceof CreateInitialMasterActorData masterActorData) { // master
 125             sourceIdentifiers = masterActorData.getSourceIndentifiers();
 126             deviceDataBroker = masterActorData.getDeviceDataBroker();
 127             netconfService = masterActorData.getNetconfDataTreeService();
 128             final DOMDataTreeReadTransaction tx = deviceDataBroker.newReadOnlyTransaction();
 129             readTxActor = context().actorOf(ReadTransactionActor.props(tx));
 130
 131             final var deviceServices = masterActorData.getDeviceServices();
 132             deviceRpc = deviceServices.rpcs() instanceof Rpcs.Normalized normalized ? normalized.domRpcService() : null;
 133             deviceAction = deviceServices.actions() instanceof Actions.Normalized normalized ? normalized : null;
 134
 135             sender().tell(new MasterActorDataInitialized(), self());
 136             LOG.debug("{}: Master is ready.", id);
 137         } else if (message instanceof RefreshSetupMasterActorData) {
 138             setup = ((RefreshSetupMasterActorData) message).getNetconfTopologyDeviceSetup();
 139             id = ((RefreshSetupMasterActorData) message).getRemoteDeviceId();
 140             sender().tell(new MasterActorDataInitialized(), self());
 141         } else if (message instanceof AskForMasterMountPoint askForMasterMountPoint) { // master
 142             // only master contains reference to deviceDataBroker
 143             if (deviceDataBroker != null) {
 144                 LOG.debug("{}: Sending RegisterMountPoint reply to {}", id, askForMasterMountPoint.getSlaveActorRef());
 145                 askForMasterMountPoint.getSlaveActorRef().tell(new RegisterMountPoint(sourceIdentifiers, self()),
 146                     sender());
 147             } else {
 148                 LOG.warn("{}: Received {} but we don't appear to be the master", id, askForMasterMountPoint);
 149                 sender().tell(new Failure(new NotMasterException(self())), self());
 150             }
 151         } else if (message instanceof YangTextSchemaSourceRequest yangTextSchemaSourceRequest) { // master
 152             sendYangTextSchemaSourceProxy(yangTextSchemaSourceRequest.getSourceIdentifier(), sender());
 153         } else if (message instanceof NewReadTransactionRequest) { // master
 154             sender().tell(new Success(readTxActor), self());
 155         } else if (message instanceof NewWriteTransactionRequest) { // master
 156             try {
 157                 final DOMDataTreeWriteTransaction tx = deviceDataBroker.newWriteOnlyTransaction();
 158                 final ActorRef txActor = context().actorOf(WriteTransactionActor.props(tx, writeTxIdleTimeout));
 159                 sender().tell(new Success(txActor), self());
 160             } catch (final Exception t) {
 161                 sender().tell(new Failure(t), self());
 162             }
 163         } else if (message instanceof NewReadWriteTransactionRequest) {
 164             try {
 165                 final DOMDataTreeReadWriteTransaction tx = deviceDataBroker.newReadWriteTransaction();
 166                 final ActorRef txActor = context().actorOf(ReadWriteTransactionActor.props(tx, writeTxIdleTimeout));
 167                 sender().tell(new Success(txActor), self());
 168             } catch (final Exception t) {
 169                 sender().tell(new Failure(t), self());
 170             }
 171         } else if (message instanceof InvokeRpcMessage invokeRpcMessage) { // master
 172             invokeSlaveRpc(invokeRpcMessage.getSchemaPath().lastNodeIdentifier(),
 173                 invokeRpcMessage.getNormalizedNodeMessage(), sender());
 174         } else if (message instanceof InvokeActionMessage invokeActionMessage) { // master
 175             LOG.info("InvokeActionMessage Details : {}", invokeActionMessage.toString());
 176             invokeSlaveAction(invokeActionMessage.getSchemaPath(), invokeActionMessage.getContainerNodeMessage(),
 177                 invokeActionMessage.getDOMDataTreeIdentifier(), sender());
 178         } else if (message instanceof RegisterMountPoint registerMountPoint) { //slaves
 179             sourceIdentifiers = registerMountPoint.getSourceIndentifiers();
 180             registerSlaveMountPoint(registerMountPoint.getMasterActorRef());
 181             sender().tell(new Success(null), self());
 182         } else if (message instanceof UnregisterSlaveMountPoint) { //slaves
 183             unregisterSlaveMountPoint();
 184         } else if (message instanceof RefreshSlaveActor refreshSlave) { //slave
 185             actorResponseWaitTime = refreshSlave.getActorResponseWaitTime();
 186             id = refreshSlave.getId();
 187             schemaRegistry = refreshSlave.getSchemaRegistry();
 188             setup = refreshSlave.getSetup();
 189             schemaRepository = refreshSlave.getSchemaRepository();
 190         } else if (message instanceof NetconfDataTreeServiceRequest) {
 191             ActorRef netconfActor = context()
 192                 .actorOf(NetconfDataTreeServiceActor.props(netconfService, writeTxIdleTimeout));
 193             sender().tell(new Success(netconfActor), self());
 194         }
 195     }
 196
 197     @Override
 198     public void postStop() throws Exception {
 199         try {
 200             super.postStop();
 201         } finally {
 202             unregisterSlaveMountPoint();
 203         }
 204     }
 205
 206     private void unregisterSlaveMountPoint() {
 207         if (slaveSalManager != null) {
 208             slaveSalManager.close();
 209             slaveSalManager = null;
 210         }
 211
 212         closeSchemaSourceRegistrations();
 213     }
 214
 215     private void sendYangTextSchemaSourceProxy(final SourceIdentifier sourceIdentifier, final ActorRef sender) {
 216         Futures.addCallback(schemaRepository.getSchemaSource(sourceIdentifier, YangTextSource.class),
 217             new FutureCallback<>() {
 218                 @Override
 219                 public void onSuccess(final YangTextSource yangTextSchemaSource) {
 220                     try {
 221                         LOG.debug("{}: getSchemaSource for {} succeeded", id, sourceIdentifier);
 222                         sender.tell(new YangTextSchemaSourceSerializationProxy(yangTextSchemaSource), getSelf());
 223                     } catch (IOException e) {
 224                         sender.tell(new Failure(e), getSelf());
 225                     }
 226                 }
 227
 228                 @Override
 229                 public void onFailure(final Throwable throwable) {
 230                     LOG.debug("{}: getSchemaSource for {} failed", id, sourceIdentifier, throwable);
 231                     sender.tell(new Failure(throwable), getSelf());
 232                 }
 233             }, MoreExecutors.directExecutor());
 234     }
 235
 236     private void invokeSlaveRpc(final QName qname, final NormalizedNodeMessage normalizedNodeMessage,
 237                                 final ActorRef recipient) {
 238         LOG.debug("{}: invokeSlaveRpc for {}, input: {} on rpc service {}", id, qname, normalizedNodeMessage,
 239                 deviceRpc);
 240
 241         final ListenableFuture<? extends DOMRpcResult> rpcResult = deviceRpc.invokeRpc(qname,
 242                 normalizedNodeMessage != null ? (ContainerNode) normalizedNodeMessage.getNode() : null);
 243
 244         Futures.addCallback(rpcResult, new FutureCallback<DOMRpcResult>() {
 245             @Override
 246             public void onSuccess(final DOMRpcResult domRpcResult) {
 247                 LOG.debug("{}: invokeSlaveRpc for {}, domRpcResult: {}", id, qname, domRpcResult);
 248
 249                 if (domRpcResult == null) {
 250                     recipient.tell(new EmptyResultResponse(), getSender());
 251                     return;
 252                 }
 253                 NormalizedNodeMessage nodeMessageReply = null;
 254                 if (domRpcResult.value() != null) {
 255                     nodeMessageReply = new NormalizedNodeMessage(YangInstanceIdentifier.of(), domRpcResult.value());
 256                 }
 257                 recipient.tell(new InvokeRpcMessageReply(nodeMessageReply, domRpcResult.errors()), getSelf());
 258             }
 259
 260             @Override
 261             public void onFailure(final Throwable throwable) {
 262                 recipient.tell(new Failure(throwable), getSelf());
 263             }
 264         }, MoreExecutors.directExecutor());
 265     }
 266
 267     /**
 268      * Invoking Action on Slave Node in Odl Cluster Environment.
 269      *
 270      * @param schemaPath {@link Absolute}
 271      * @param containerNodeMessage {@link ContainerNodeMessage}
 272      * @param domDataTreeIdentifier {@link DOMDataTreeIdentifier}
 273      * @param recipient {@link ActorRef}
 274      */
 275     private void invokeSlaveAction(final Absolute schemaPath, final ContainerNodeMessage containerNodeMessage,
 276             final DOMDataTreeIdentifier domDataTreeIdentifier, final ActorRef recipient) {
 277         LOG.info("{}: invokeSlaveAction for {}, input: {}, identifier: {} on action service {}", id, schemaPath,
 278             containerNodeMessage, domDataTreeIdentifier, deviceAction);
 279
 280         final ListenableFuture<? extends DOMActionResult> actionResult = deviceAction.invokeAction(schemaPath,
 281             domDataTreeIdentifier, containerNodeMessage != null ? containerNodeMessage.getNode() : null);
 282
 283         Futures.addCallback(actionResult, new FutureCallback<DOMActionResult>() {
 284
 285             @Override
 286             public void onSuccess(final DOMActionResult domActionResult) {
 287                 LOG.debug("{}: invokeSlaveAction for {}, domActionResult: {}", id, schemaPath, domActionResult);
 288                 if (domActionResult == null) {
 289                     recipient.tell(new EmptyResultResponse(), getSender());
 290                     return;
 291                 }
 292
 293                 //Check DomActionResult containing Ok onSuccess pass empty nodeMessageReply
 294                 ContainerNodeMessage nodeMessageReply = domActionResult.getOutput().map(ContainerNodeMessage::new)
 295                         .orElse(null);
 296                 recipient.tell(new InvokeActionMessageReply(nodeMessageReply, domActionResult.getErrors()), getSelf());
 297             }
 298
 299             @Override
 300             public void onFailure(final Throwable throwable) {
 301                 recipient.tell(new Failure(throwable), getSelf());
 302             }
 303         }, MoreExecutors.directExecutor());
 304     }
 305
 306     private void registerSlaveMountPoint(final ActorRef masterReference) {
 307         unregisterSlaveMountPoint();
 308
 309         slaveSalManager = new SlaveSalFacade(id, setup.getActorSystem(), actorResponseWaitTime, mountPointService);
 310
 311         resolveSchemaContext(createSchemaContextFactory(masterReference), slaveSalManager, masterReference, 1);
 312     }
 313
 314     private EffectiveModelContextFactory createSchemaContextFactory(final ActorRef masterReference) {
 315         final RemoteYangTextSourceProvider remoteYangTextSourceProvider =
 316                 new ProxyYangTextSourceProvider(masterReference, getContext().dispatcher(), actorResponseWaitTime);
 317         final RemoteSchemaProvider remoteProvider = new RemoteSchemaProvider(remoteYangTextSourceProvider,
 318                 getContext().dispatcher());
 319
 320         registeredSchemas = sourceIdentifiers.stream()
 321                 .map(sourceId ->
 322                         schemaRegistry.registerSchemaSource(remoteProvider, PotentialSchemaSource.create(sourceId,
 323                                 YangTextSource.class, PotentialSchemaSource.Costs.REMOTE_IO.getValue())))
 324                 .collect(Collectors.toList());
 325
 326         return schemaRepository.createEffectiveModelContextFactory();
 327     }
 328
 329     private void resolveSchemaContext(final EffectiveModelContextFactory schemaContextFactory,
 330             final SlaveSalFacade localSlaveSalManager, final ActorRef masterReference, final int tries) {
 331         final var schemaContextFuture = schemaContextFactory.createEffectiveModelContext(sourceIdentifiers);
 332         Futures.addCallback(schemaContextFuture, new FutureCallback<>() {
 333             @Override
 334             public void onSuccess(final EffectiveModelContext result) {
 335                 executeInSelf(() -> {
 336                     // Make sure the slaveSalManager instance hasn't changed since we initiated the schema context
 337                     // resolution.
 338                     if (slaveSalManager == localSlaveSalManager) {
 339                         LOG.info("{}: Schema context resolved: {} - registering slave mount point", id,
 340                             result.getModules());
 341                         final var actorSystem = setup.getActorSystem();
 342                         final var rpcProxy = new ProxyDOMRpcService(actorSystem, masterReference, id,
 343                             actorResponseWaitTime);
 344                         slaveSalManager.registerSlaveMountPoint(result, masterReference, new RemoteDeviceServices(
 345                             (Rpcs.Normalized) () -> rpcProxy,
 346                             new ProxyDOMActionService(actorSystem, masterReference, id, actorResponseWaitTime)));
 347                     }
 348                 });
 349             }
 350
 351             @Override
 352             public void onFailure(final Throwable throwable) {
 353                 executeInSelf(() -> {
 354                     if (slaveSalManager == localSlaveSalManager) {
 355                         final Throwable cause = Throwables.getRootCause(throwable);
 356                         if (cause instanceof AskTimeoutException) {
 357                             if (tries <= 5 || tries % 10 == 0) {
 358                                 LOG.warn("{}: Failed to resolve schema context - retrying...", id, throwable);
 359                             }
 360
 361                             resolveSchemaContext(schemaContextFactory, localSlaveSalManager,
 362                                     masterReference, tries + 1);
 363                         } else {
 364                             LOG.error("{}: Failed to resolve schema context - unable to register slave mount point",
 365                                     id, throwable);
 366                             closeSchemaSourceRegistrations();
 367                         }
 368                     }
 369                 });
 370             }
 371         }, MoreExecutors.directExecutor());
 372     }
 373
 374     private void closeSchemaSourceRegistrations() {
 375         if (registeredSchemas != null) {
 376             registeredSchemas.forEach(Registration::close);
 377             registeredSchemas = null;
 378         }
 379     }
 380 }