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