dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/DOMRpcRouter.java

   1 /*
   2  * Copyright (c) 2015 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.mdsal.dom.broker;
   9
  10 import static com.google.common.base.Preconditions.checkArgument;
  11 import static com.google.common.base.Verify.verifyNotNull;
  12 import static java.util.Objects.requireNonNull;
  13
  14 import com.google.common.annotations.VisibleForTesting;
  15 import com.google.common.collect.ClassToInstanceMap;
  16 import com.google.common.collect.Collections2;
  17 import com.google.common.collect.ImmutableClassToInstanceMap;
  18 import com.google.common.collect.ImmutableList;
  19 import com.google.common.collect.ImmutableSet;
  20 import com.google.common.collect.ImmutableTable;
  21 import com.google.common.collect.MapDifference;
  22 import com.google.common.collect.MapDifference.ValueDifference;
  23 import com.google.common.collect.Maps;
  24 import com.google.common.collect.Sets;
  25 import com.google.common.util.concurrent.Futures;
  26 import com.google.common.util.concurrent.ListenableFuture;
  27 import com.google.common.util.concurrent.ThreadFactoryBuilder;
  28 import java.util.ArrayList;
  29 import java.util.Collection;
  30 import java.util.HashSet;
  31 import java.util.List;
  32 import java.util.Map;
  33 import java.util.Map.Entry;
  34 import java.util.Optional;
  35 import java.util.Set;
  36 import java.util.concurrent.ExecutorService;
  37 import java.util.concurrent.Executors;
  38 import java.util.concurrent.ThreadFactory;
  39 import javax.annotation.PreDestroy;
  40 import javax.inject.Inject;
  41 import javax.inject.Singleton;
  42 import org.checkerframework.checker.lock.qual.GuardedBy;
  43 import org.eclipse.jdt.annotation.NonNull;
  44 import org.eclipse.jdt.annotation.NonNullByDefault;
  45 import org.opendaylight.mdsal.dom.api.DOMActionAvailabilityExtension;
  46 import org.opendaylight.mdsal.dom.api.DOMActionAvailabilityExtension.AvailabilityListener;
  47 import org.opendaylight.mdsal.dom.api.DOMActionImplementation;
  48 import org.opendaylight.mdsal.dom.api.DOMActionInstance;
  49 import org.opendaylight.mdsal.dom.api.DOMActionNotAvailableException;
  50 import org.opendaylight.mdsal.dom.api.DOMActionProviderService;
  51 import org.opendaylight.mdsal.dom.api.DOMActionResult;
  52 import org.opendaylight.mdsal.dom.api.DOMActionService;
  53 import org.opendaylight.mdsal.dom.api.DOMActionServiceExtension;
  54 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  55 import org.opendaylight.mdsal.dom.api.DOMRpcAvailabilityListener;
  56 import org.opendaylight.mdsal.dom.api.DOMRpcIdentifier;
  57 import org.opendaylight.mdsal.dom.api.DOMRpcImplementation;
  58 import org.opendaylight.mdsal.dom.api.DOMRpcImplementationNotAvailableException;
  59 import org.opendaylight.mdsal.dom.api.DOMRpcImplementationRegistration;
  60 import org.opendaylight.mdsal.dom.api.DOMRpcProviderService;
  61 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
  62 import org.opendaylight.mdsal.dom.api.DOMRpcService;
  63 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  64 import org.opendaylight.mdsal.dom.spi.AbstractDOMRpcImplementationRegistration;
  65 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  66 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
  67 import org.opendaylight.yangtools.concepts.AbstractRegistration;
  68 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  69 import org.opendaylight.yangtools.concepts.ObjectRegistration;
  70 import org.opendaylight.yangtools.concepts.Registration;
  71 import org.opendaylight.yangtools.yang.common.QName;
  72 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  73 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  74 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  75 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
  76 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  77 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextListener;
  78 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  79 import org.osgi.service.component.annotations.Activate;
  80 import org.osgi.service.component.annotations.Component;
  81 import org.osgi.service.component.annotations.Deactivate;
  82 import org.osgi.service.component.annotations.Reference;
  83 import org.osgi.service.component.annotations.RequireServiceComponentRuntime;
  84 import org.slf4j.Logger;
  85 import org.slf4j.LoggerFactory;
  86
  87 @Singleton
  88 @Component(immediate = true, service = DOMRpcRouterServices.class)
  89 @RequireServiceComponentRuntime
  90 public final class DOMRpcRouter extends AbstractRegistration
  91         implements DOMRpcRouterServices, EffectiveModelContextListener {
  92     private static final Logger LOG = LoggerFactory.getLogger(DOMRpcRouter.class);
  93     private static final ThreadFactory THREAD_FACTORY = new ThreadFactoryBuilder().setNameFormat(
  94             "DOMRpcRouter-listener-%s").setDaemon(true).build();
  95
  96     private final ExecutorService listenerNotifier = Executors.newSingleThreadExecutor(THREAD_FACTORY);
  97     private final @NonNull DOMActionProviderService actionProviderService = new ActionProviderServiceFacade();
  98     private final @NonNull DOMActionService actionService = new ActionServiceFacade();
  99     private final @NonNull DOMRpcProviderService rpcProviderService = new RpcProviderServiceFacade();
 100     private final @NonNull DOMRpcService rpcService = new RpcServiceFacade();
 101
 102     @GuardedBy("this")
 103     private ImmutableList<RegImpl<?>> listeners = ImmutableList.of();
 104
 105     @GuardedBy("this")
 106     private ImmutableList<ActionRegistration<?>> actionListeners = ImmutableList.of();
 107
 108     private volatile DOMRpcRoutingTable routingTable = DOMRpcRoutingTable.EMPTY;
 109
 110     private volatile DOMActionRoutingTable actionRoutingTable = DOMActionRoutingTable.EMPTY;
 111
 112     private Registration listenerRegistration;
 113
 114     @Deprecated
 115     @VisibleForTesting
 116     // FIXME: 9.0.0: make this constructor package-private
 117     public DOMRpcRouter() {
 118
 119     }
 120
 121     @Inject
 122     @Activate
 123     public DOMRpcRouter(@Reference final DOMSchemaService schemaService) {
 124         listenerRegistration = schemaService.registerSchemaContextListener(this);
 125         LOG.info("DOM RPC/Action router started");
 126     }
 127
 128     @Deprecated(forRemoval = true)
 129     public static DOMRpcRouter newInstance(final DOMSchemaService schemaService) {
 130         return new DOMRpcRouter(schemaService);
 131     }
 132
 133     @PreDestroy
 134     @Deactivate
 135     public void shutdown() {
 136         close();
 137     }
 138
 139     @Override
 140     public DOMActionService getActionService() {
 141         return actionService;
 142     }
 143
 144     @Override
 145     public DOMActionProviderService getActionProviderService() {
 146         return actionProviderService;
 147     }
 148
 149     @Override
 150     public DOMRpcService getRpcService() {
 151         return rpcService;
 152     }
 153
 154     @Override
 155     public DOMRpcProviderService getRpcProviderService() {
 156         return rpcProviderService;
 157     }
 158
 159     private synchronized void removeRpcImplementation(final DOMRpcImplementation implementation,
 160             final Set<DOMRpcIdentifier> rpcs) {
 161         final DOMRpcRoutingTable oldTable = routingTable;
 162         final DOMRpcRoutingTable newTable = (DOMRpcRoutingTable) oldTable.remove(implementation, rpcs);
 163         routingTable = newTable;
 164
 165         listenerNotifier.execute(() -> notifyRemoved(newTable, implementation));
 166     }
 167
 168     private synchronized void removeRpcImplementations(
 169             final ImmutableTable<QName, YangInstanceIdentifier, DOMRpcImplementation> implTable) {
 170         final DOMRpcRoutingTable oldTable = routingTable;
 171         final DOMRpcRoutingTable newTable = (DOMRpcRoutingTable) oldTable.removeAll(implTable);
 172         routingTable = newTable;
 173
 174         listenerNotifier.execute(() -> notifyRemoved(newTable, implTable.values()));
 175     }
 176
 177     private synchronized void removeActionImplementation(final DOMActionImplementation implementation,
 178             final Set<DOMActionInstance> actions) {
 179         final DOMActionRoutingTable oldTable = actionRoutingTable;
 180         final DOMActionRoutingTable newTable = (DOMActionRoutingTable) oldTable.remove(implementation, actions);
 181         actionRoutingTable = newTable;
 182
 183         listenerNotifier.execute(() -> notifyActionChanged(newTable, implementation));
 184     }
 185
 186     private synchronized void removeListener(final ListenerRegistration<? extends DOMRpcAvailabilityListener> reg) {
 187         listeners = ImmutableList.copyOf(Collections2.filter(listeners, input -> !reg.equals(input)));
 188     }
 189
 190     private synchronized void removeActionListener(final ListenerRegistration<? extends AvailabilityListener> reg) {
 191         actionListeners = ImmutableList.copyOf(Collections2.filter(actionListeners, input -> !reg.equals(input)));
 192     }
 193
 194     private synchronized void notifyAdded(final DOMRpcRoutingTable newTable, final DOMRpcImplementation impl) {
 195         for (RegImpl<?> l : listeners) {
 196             l.addRpc(newTable, impl);
 197         }
 198     }
 199
 200     private synchronized void notifyAdded(final DOMRpcRoutingTable newTable,
 201             final Collection<? extends DOMRpcImplementation> impls) {
 202         for (RegImpl<?> l : listeners) {
 203             for (DOMRpcImplementation impl : impls) {
 204                 l.addRpc(newTable, impl);
 205             }
 206         }
 207     }
 208
 209     private synchronized void notifyRemoved(final DOMRpcRoutingTable newTable, final DOMRpcImplementation impl) {
 210         for (RegImpl<?> l : listeners) {
 211             l.removeRpc(newTable, impl);
 212         }
 213     }
 214
 215     private synchronized void notifyRemoved(final DOMRpcRoutingTable newTable,
 216             final Collection<? extends DOMRpcImplementation> impls) {
 217         for (RegImpl<?> l : listeners) {
 218             for (DOMRpcImplementation impl : impls) {
 219                 l.removeRpc(newTable, impl);
 220             }
 221         }
 222     }
 223
 224     private synchronized void notifyActionChanged(final DOMActionRoutingTable newTable,
 225             final DOMActionImplementation impl) {
 226         for (ActionRegistration<?> l : actionListeners) {
 227             l.actionChanged(newTable, impl);
 228         }
 229     }
 230
 231     @Override
 232     public synchronized void onModelContextUpdated(final EffectiveModelContext newModelContext) {
 233         final DOMRpcRoutingTable oldTable = routingTable;
 234         final DOMRpcRoutingTable newTable = (DOMRpcRoutingTable) oldTable.setSchemaContext(newModelContext);
 235         routingTable = newTable;
 236
 237         final DOMActionRoutingTable oldActionTable = actionRoutingTable;
 238         final DOMActionRoutingTable newActionTable =
 239                 (DOMActionRoutingTable) oldActionTable.setSchemaContext(newModelContext);
 240         actionRoutingTable = newActionTable;
 241     }
 242
 243     @Override
 244     protected void removeRegistration() {
 245         if (listenerRegistration != null) {
 246             listenerRegistration.close();
 247             listenerRegistration = null;
 248         }
 249         listenerNotifier.shutdown();
 250         LOG.info("DOM RPC/Action router stopped");
 251     }
 252
 253     @VisibleForTesting
 254     synchronized List<?> listeners() {
 255         return listeners;
 256     }
 257
 258     @VisibleForTesting
 259     synchronized List<?> actionListeners() {
 260         return actionListeners;
 261     }
 262
 263     @VisibleForTesting
 264     DOMRpcRoutingTable routingTable() {
 265         return routingTable;
 266     }
 267
 268     private static final class RegImpl<T extends DOMRpcAvailabilityListener> extends AbstractListenerRegistration<T> {
 269         private Map<QName, Set<YangInstanceIdentifier>> prevRpcs;
 270         private DOMRpcRouter router;
 271
 272         RegImpl(final DOMRpcRouter router, final T listener, final Map<QName, Set<YangInstanceIdentifier>> rpcs) {
 273             super(listener);
 274             this.router = requireNonNull(router);
 275             prevRpcs = requireNonNull(rpcs);
 276         }
 277
 278         @Override
 279         protected void removeRegistration() {
 280             router.removeListener(this);
 281             router = null;
 282         }
 283
 284         void initialTable() {
 285             final List<DOMRpcIdentifier> added = new ArrayList<>();
 286             for (Entry<QName, Set<YangInstanceIdentifier>> e : prevRpcs.entrySet()) {
 287                 added.addAll(Collections2.transform(e.getValue(), i -> DOMRpcIdentifier.create(e.getKey(), i)));
 288             }
 289             if (!added.isEmpty()) {
 290                 getInstance().onRpcAvailable(added);
 291             }
 292         }
 293
 294         void addRpc(final DOMRpcRoutingTable newTable, final DOMRpcImplementation impl) {
 295             final T l = getInstance();
 296             if (!l.acceptsImplementation(impl)) {
 297                 return;
 298             }
 299
 300             final Map<QName, Set<YangInstanceIdentifier>> rpcs = verifyNotNull(newTable.getOperations(l));
 301             final MapDifference<QName, Set<YangInstanceIdentifier>> diff = Maps.difference(prevRpcs, rpcs);
 302
 303             final List<DOMRpcIdentifier> added = new ArrayList<>();
 304             for (Entry<QName, Set<YangInstanceIdentifier>> e : diff.entriesOnlyOnRight().entrySet()) {
 305                 added.addAll(Collections2.transform(e.getValue(), i -> DOMRpcIdentifier.create(e.getKey(), i)));
 306             }
 307             for (Entry<QName, ValueDifference<Set<YangInstanceIdentifier>>> e : diff.entriesDiffering().entrySet()) {
 308                 for (YangInstanceIdentifier i : Sets.difference(e.getValue().rightValue(), e.getValue().leftValue())) {
 309                     added.add(DOMRpcIdentifier.create(e.getKey(), i));
 310                 }
 311             }
 312
 313             prevRpcs = rpcs;
 314             if (!added.isEmpty()) {
 315                 l.onRpcAvailable(added);
 316             }
 317         }
 318
 319         void removeRpc(final DOMRpcRoutingTable newTable, final DOMRpcImplementation impl) {
 320             final T l = getInstance();
 321             if (!l.acceptsImplementation(impl)) {
 322                 return;
 323             }
 324
 325             final Map<QName, Set<YangInstanceIdentifier>> rpcs = verifyNotNull(newTable.getOperations(l));
 326             final MapDifference<QName, Set<YangInstanceIdentifier>> diff = Maps.difference(prevRpcs, rpcs);
 327
 328             final List<DOMRpcIdentifier> removed = new ArrayList<>();
 329             for (Entry<QName, Set<YangInstanceIdentifier>> e : diff.entriesOnlyOnLeft().entrySet()) {
 330                 removed.addAll(Collections2.transform(e.getValue(), i -> DOMRpcIdentifier.create(e.getKey(), i)));
 331             }
 332             for (Entry<QName, ValueDifference<Set<YangInstanceIdentifier>>> e : diff.entriesDiffering().entrySet()) {
 333                 for (YangInstanceIdentifier i : Sets.difference(e.getValue().leftValue(), e.getValue().rightValue())) {
 334                     removed.add(DOMRpcIdentifier.create(e.getKey(), i));
 335                 }
 336             }
 337
 338             prevRpcs = rpcs;
 339             if (!removed.isEmpty()) {
 340                 l.onRpcUnavailable(removed);
 341             }
 342         }
 343     }
 344
 345     private static final class ActionRegistration<T extends AvailabilityListener>
 346         extends AbstractListenerRegistration<T> {
 347
 348         private Map<Absolute, Set<DOMDataTreeIdentifier>> prevActions;
 349         private DOMRpcRouter router;
 350
 351         ActionRegistration(final DOMRpcRouter router, final T listener,
 352                 final Map<Absolute, Set<DOMDataTreeIdentifier>> actions) {
 353             super(listener);
 354             this.router = requireNonNull(router);
 355             prevActions = requireNonNull(actions);
 356         }
 357
 358         @Override
 359         protected void removeRegistration() {
 360             router.removeActionListener(this);
 361             router = null;
 362         }
 363
 364         void initialTable() {
 365             final List<DOMActionInstance> added = new ArrayList<>();
 366             for (Entry<Absolute, Set<DOMDataTreeIdentifier>> e : prevActions.entrySet()) {
 367                 added.addAll(Collections2.transform(e.getValue(), i -> DOMActionInstance.of(e.getKey(), i)));
 368             }
 369             if (!added.isEmpty()) {
 370                 getInstance().onActionsChanged(ImmutableSet.of(), ImmutableSet.copyOf(added));
 371             }
 372         }
 373
 374         void actionChanged(final DOMActionRoutingTable newTable, final DOMActionImplementation impl) {
 375             final T l = getInstance();
 376             if (!l.acceptsImplementation(impl)) {
 377                 return;
 378             }
 379
 380             final Map<Absolute, Set<DOMDataTreeIdentifier>> actions = verifyNotNull(newTable.getOperations(l));
 381             final MapDifference<Absolute, Set<DOMDataTreeIdentifier>> diff = Maps.difference(prevActions, actions);
 382
 383             final Set<DOMActionInstance> removed = new HashSet<>();
 384             final Set<DOMActionInstance> added = new HashSet<>();
 385
 386             for (Entry<Absolute, Set<DOMDataTreeIdentifier>> e : diff.entriesOnlyOnLeft().entrySet()) {
 387                 removed.addAll(Collections2.transform(e.getValue(), i -> DOMActionInstance.of(e.getKey(), i)));
 388             }
 389
 390             for (Entry<Absolute, Set<DOMDataTreeIdentifier>> e : diff.entriesOnlyOnRight().entrySet()) {
 391                 added.addAll(Collections2.transform(e.getValue(), i -> DOMActionInstance.of(e.getKey(), i)));
 392             }
 393
 394             for (Entry<Absolute, ValueDifference<Set<DOMDataTreeIdentifier>>> e : diff.entriesDiffering().entrySet()) {
 395                 for (DOMDataTreeIdentifier i : Sets.difference(e.getValue().leftValue(), e.getValue().rightValue())) {
 396                     removed.add(DOMActionInstance.of(e.getKey(), i));
 397                 }
 398
 399                 for (DOMDataTreeIdentifier i : Sets.difference(e.getValue().rightValue(), e.getValue().leftValue())) {
 400                     added.add(DOMActionInstance.of(e.getKey(), i));
 401                 }
 402             }
 403
 404             prevActions = actions;
 405             if (!removed.isEmpty() || !added.isEmpty()) {
 406                 l.onActionsChanged(removed, added);
 407             }
 408         }
 409     }
 410
 411     @NonNullByDefault
 412     private final class ActionAvailabilityFacade implements DOMActionAvailabilityExtension {
 413         @Override
 414         public <T extends AvailabilityListener> ListenerRegistration<T> registerAvailabilityListener(final T listener) {
 415             synchronized (DOMRpcRouter.this) {
 416                 final ActionRegistration<T> ret = new ActionRegistration<>(DOMRpcRouter.this, listener,
 417                     actionRoutingTable.getOperations(listener));
 418                 actionListeners = ImmutableList.<ActionRegistration<?>>builder()
 419                     .addAll(actionListeners)
 420                     .add(ret)
 421                     .build();
 422
 423                 listenerNotifier.execute(ret::initialTable);
 424                 return ret;
 425             }
 426         }
 427     }
 428
 429     @NonNullByDefault
 430     private final class ActionServiceFacade implements DOMActionService {
 431         private final ClassToInstanceMap<DOMActionServiceExtension> extensions = ImmutableClassToInstanceMap.of(
 432             DOMActionAvailabilityExtension.class, new ActionAvailabilityFacade());
 433
 434         @Override
 435         public ClassToInstanceMap<DOMActionServiceExtension> getExtensions() {
 436             return extensions;
 437         }
 438
 439         @Override
 440         public ListenableFuture<? extends DOMActionResult> invokeAction(final Absolute type,
 441                 final DOMDataTreeIdentifier path, final ContainerNode input) {
 442             final YangInstanceIdentifier pathRoot = path.getRootIdentifier();
 443             checkArgument(!pathRoot.isEmpty(), "Action path must not be empty");
 444
 445             final DOMActionRoutingTableEntry entry = (DOMActionRoutingTableEntry) actionRoutingTable.getEntry(type);
 446             return entry != null ? OperationInvocation.invoke(entry, type, path, requireNonNull(input))
 447                 : Futures.immediateFailedFuture(
 448                     new DOMActionNotAvailableException("No implementation of Action %s available", type));
 449         }
 450     }
 451
 452     @NonNullByDefault
 453     private final class ActionProviderServiceFacade implements DOMActionProviderService {
 454         @Override
 455         public <T extends DOMActionImplementation> ObjectRegistration<T> registerActionImplementation(
 456                 final T implementation, final Set<DOMActionInstance> instances) {
 457             checkArgument(!instances.isEmpty(), "Instances must not be empty");
 458
 459             synchronized (DOMRpcRouter.this) {
 460                 final DOMActionRoutingTable oldTable = actionRoutingTable;
 461                 final DOMActionRoutingTable newTable = (DOMActionRoutingTable) oldTable.add(implementation, instances);
 462                 actionRoutingTable = newTable;
 463
 464                 listenerNotifier.execute(() -> notifyActionChanged(newTable, implementation));
 465             }
 466
 467             return new AbstractObjectRegistration<>(implementation) {
 468                 @Override
 469                 protected void removeRegistration() {
 470                     removeActionImplementation(getInstance(), instances);
 471                 }
 472             };
 473         }
 474     }
 475
 476     private final class RpcServiceFacade implements DOMRpcService {
 477         @Override
 478         public ListenableFuture<? extends DOMRpcResult> invokeRpc(final QName type, final ContainerNode input) {
 479             final AbstractDOMRpcRoutingTableEntry entry = (AbstractDOMRpcRoutingTableEntry) routingTable.getEntry(type);
 480             if (entry == null) {
 481                 return Futures.immediateFailedFuture(
 482                     new DOMRpcImplementationNotAvailableException("No implementation of RPC %s available", type));
 483             }
 484
 485             return OperationInvocation.invoke(entry, requireNonNull(input));
 486         }
 487
 488         @Override
 489         public <T extends DOMRpcAvailabilityListener> ListenerRegistration<T> registerRpcListener(final T listener) {
 490             synchronized (DOMRpcRouter.this) {
 491                 final RegImpl<T> ret = new RegImpl<>(DOMRpcRouter.this, listener, routingTable.getOperations(listener));
 492                 listeners = ImmutableList.<RegImpl<?>>builder().addAll(listeners).add(ret).build();
 493
 494                 listenerNotifier.execute(ret::initialTable);
 495                 return ret;
 496             }
 497         }
 498     }
 499
 500     private final class RpcProviderServiceFacade implements DOMRpcProviderService {
 501         @Override
 502         public <T extends DOMRpcImplementation> DOMRpcImplementationRegistration<T> registerRpcImplementation(
 503                 final T implementation, final DOMRpcIdentifier... rpcs) {
 504             return registerRpcImplementation(implementation, ImmutableSet.copyOf(rpcs));
 505         }
 506
 507         @Override
 508         public <T extends DOMRpcImplementation> DOMRpcImplementationRegistration<T> registerRpcImplementation(
 509                 final T implementation, final Set<DOMRpcIdentifier> rpcs) {
 510
 511             synchronized (DOMRpcRouter.this) {
 512                 final DOMRpcRoutingTable oldTable = routingTable;
 513                 final DOMRpcRoutingTable newTable = (DOMRpcRoutingTable) oldTable.add(implementation, rpcs);
 514                 routingTable = newTable;
 515
 516                 listenerNotifier.execute(() -> notifyAdded(newTable, implementation));
 517             }
 518
 519             return new AbstractDOMRpcImplementationRegistration<>(implementation) {
 520                 @Override
 521                 protected void removeRegistration() {
 522                     removeRpcImplementation(getInstance(), rpcs);
 523                 }
 524             };
 525         }
 526
 527         @Override
 528         public org.opendaylight.yangtools.concepts.Registration registerRpcImplementations(
 529                 final Map<DOMRpcIdentifier, DOMRpcImplementation> map) {
 530             checkArgument(!map.isEmpty());
 531
 532             final var builder = ImmutableTable.<QName, YangInstanceIdentifier, DOMRpcImplementation>builder();
 533             for (var entry : map.entrySet()) {
 534                 final var id = entry.getKey();
 535                 builder.put(id.getType(), id.getContextReference(), entry.getValue());
 536             }
 537             final var implTable = builder.build();
 538
 539             synchronized (DOMRpcRouter.this) {
 540                 final DOMRpcRoutingTable oldTable = routingTable;
 541                 final DOMRpcRoutingTable newTable = (DOMRpcRoutingTable) oldTable.addAll(implTable);
 542                 routingTable = newTable;
 543
 544                 listenerNotifier.execute(() -> notifyAdded(newTable, implTable.values()));
 545             }
 546
 547             return new AbstractRegistration() {
 548                 @Override
 549                 protected void removeRegistration() {
 550                     removeRpcImplementations(implTable);
 551                 }
 552             };
 553         }
 554     }
 555
 556     static final class OperationInvocation {
 557         private static final Logger LOG = LoggerFactory.getLogger(OperationInvocation.class);
 558
 559         static ListenableFuture<? extends DOMActionResult> invoke(final DOMActionRoutingTableEntry entry,
 560                 final Absolute type, final DOMDataTreeIdentifier path, final ContainerNode input) {
 561             List<DOMActionImplementation> impls = entry.getImplementations(path);
 562             if (impls == null) {
 563                 impls = entry.getImplementations(
 564                     new DOMDataTreeIdentifier(path.getDatastoreType(), YangInstanceIdentifier.empty()));
 565                 if (impls == null) {
 566                     return Futures.immediateFailedFuture(new DOMActionNotAvailableException(
 567                         "No implementation of Action %s available for %s", type, path));
 568                 }
 569             }
 570
 571             return impls.get(0).invokeAction(type, path, input);
 572         }
 573
 574         static ListenableFuture<? extends DOMRpcResult> invoke(final AbstractDOMRpcRoutingTableEntry entry,
 575                 final ContainerNode input) {
 576             if (entry instanceof UnknownDOMRpcRoutingTableEntry) {
 577                 return Futures.immediateFailedFuture(
 578                     new DOMRpcImplementationNotAvailableException("%s is not resolved to an RPC", entry.getType()));
 579             } else if (entry instanceof RoutedDOMRpcRoutingTableEntry routed) {
 580                 return invokeRoutedRpc(routed, input);
 581             } else if (entry instanceof GlobalDOMRpcRoutingTableEntry global) {
 582                 return invokeGlobalRpc(global, input);
 583             }
 584
 585             return Futures.immediateFailedFuture(
 586                 new DOMRpcImplementationNotAvailableException("Unsupported RPC entry."));
 587         }
 588
 589         private static ListenableFuture<? extends DOMRpcResult> invokeRoutedRpc(
 590                 final RoutedDOMRpcRoutingTableEntry entry, final ContainerNode input) {
 591             final Optional<NormalizedNode> maybeKey = NormalizedNodes.findNode(input,
 592                 entry.getRpcId().getContextReference());
 593
 594             // Routing key is present, attempt to deliver as a routed RPC
 595             if (maybeKey.isPresent()) {
 596                 final NormalizedNode key = maybeKey.orElseThrow();
 597                 final Object value = key.body();
 598                 if (value instanceof YangInstanceIdentifier iid) {
 599                     // Find a DOMRpcImplementation for a specific iid
 600                     final List<DOMRpcImplementation> specificImpls = entry.getImplementations(iid);
 601                     if (specificImpls != null) {
 602                         return specificImpls.get(0)
 603                             .invokeRpc(DOMRpcIdentifier.create(entry.getType(), iid), input);
 604                     }
 605
 606                     LOG.debug("No implementation for context {} found will now look for wildcard id", iid);
 607
 608                     // Find a DOMRpcImplementation for a wild card. Usually remote-rpc-connector would register an
 609                     // implementation this way
 610                     final List<DOMRpcImplementation> mayBeRemoteImpls =
 611                         entry.getImplementations(YangInstanceIdentifier.empty());
 612
 613                     if (mayBeRemoteImpls != null) {
 614                         return mayBeRemoteImpls.get(0)
 615                             .invokeRpc(DOMRpcIdentifier.create(entry.getType(), iid), input);
 616                     }
 617
 618                 } else {
 619                     LOG.warn("Ignoring wrong context value {}", value);
 620                 }
 621             }
 622
 623             final List<DOMRpcImplementation> impls = entry.getImplementations(null);
 624             if (impls != null) {
 625                 return impls.get(0).invokeRpc(entry.getRpcId(), input);
 626             }
 627
 628             return Futures.immediateFailedFuture(
 629                 new DOMRpcImplementationNotAvailableException("No implementation of RPC %s available",
 630                     entry.getType()));
 631         }
 632
 633         private static ListenableFuture<? extends DOMRpcResult> invokeGlobalRpc(
 634                 final GlobalDOMRpcRoutingTableEntry entry, final ContainerNode input) {
 635             return entry.getImplementations(YangInstanceIdentifier.empty()).get(0).invokeRpc(entry.getRpcId(), input);
 636         }
 637     }
 638 }