2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.netconf.sal.connect.netconf;
10 import static com.google.common.base.Preconditions.checkState;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.base.Predicates;
14 import com.google.common.collect.Collections2;
15 import com.google.common.collect.Sets;
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 com.google.common.util.concurrent.ListeningExecutorService;
20 import com.google.common.util.concurrent.MoreExecutors;
21 import com.google.common.util.concurrent.SettableFuture;
22 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
23 import io.netty.util.concurrent.EventExecutor;
24 import java.util.ArrayList;
25 import java.util.Collection;
26 import java.util.Collections;
27 import java.util.LinkedList;
28 import java.util.List;
29 import java.util.Optional;
31 import java.util.concurrent.ExecutionException;
32 import java.util.concurrent.TimeUnit;
33 import java.util.stream.Collectors;
34 import org.checkerframework.checker.lock.qual.GuardedBy;
35 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
36 import org.opendaylight.mdsal.dom.api.DOMRpcService;
37 import org.opendaylight.netconf.api.NetconfMessage;
38 import org.opendaylight.netconf.sal.connect.api.DeviceActionFactory;
39 import org.opendaylight.netconf.sal.connect.api.MessageTransformer;
40 import org.opendaylight.netconf.sal.connect.api.NetconfDeviceSchemasResolver;
41 import org.opendaylight.netconf.sal.connect.api.RemoteDevice;
42 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceCommunicator;
43 import org.opendaylight.netconf.sal.connect.api.RemoteDeviceHandler;
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.sal.NetconfDeviceRpc;
48 import org.opendaylight.netconf.sal.connect.netconf.schema.mapping.BaseSchema;
49 import org.opendaylight.netconf.sal.connect.netconf.schema.mapping.NetconfMessageTransformer;
50 import org.opendaylight.netconf.sal.connect.netconf.util.NetconfMessageTransformUtil;
51 import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
52 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfCapabilityChange;
53 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.NetconfNodeAugmentedOptional;
54 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
55 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.available.capabilities.AvailableCapabilityBuilder;
56 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.unavailable.capabilities.UnavailableCapability;
57 import org.opendaylight.yangtools.rcf8528.data.util.EmptyMountPointContext;
58 import org.opendaylight.yangtools.rfc8528.data.api.MountPointContext;
59 import org.opendaylight.yangtools.yang.common.QName;
60 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
61 import org.opendaylight.yangtools.yang.model.repo.api.MissingSchemaSourceException;
62 import org.opendaylight.yangtools.yang.model.repo.api.SchemaContextFactory;
63 import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
64 import org.opendaylight.yangtools.yang.model.repo.api.SchemaResolutionException;
65 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
66 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
67 import org.opendaylight.yangtools.yang.model.repo.spi.PotentialSchemaSource;
68 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceProvider;
69 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistration;
70 import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistry;
71 import org.slf4j.Logger;
72 import org.slf4j.LoggerFactory;
75 * This is a mediator between NetconfDeviceCommunicator and NetconfDeviceSalFacade.
77 public class NetconfDevice
78 implements RemoteDevice<NetconfSessionPreferences, NetconfMessage, NetconfDeviceCommunicator> {
80 @SuppressFBWarnings(value = "SLF4J_LOGGER_SHOULD_BE_PRIVATE",
81 justification = "Needed for common logging of related classes")
82 static final Logger LOG = LoggerFactory.getLogger(NetconfDevice.class);
84 protected final RemoteDeviceId id;
85 protected final SchemaContextFactory schemaContextFactory;
86 protected final SchemaSourceRegistry schemaRegistry;
87 protected final SchemaRepository schemaRepository;
89 protected final List<SchemaSourceRegistration<?>> sourceRegistrations = new ArrayList<>();
91 private final RemoteDeviceHandler<NetconfSessionPreferences> salFacade;
92 private final ListeningExecutorService processingExecutor;
93 private final DeviceActionFactory deviceActionFactory;
94 private final NetconfDeviceSchemasResolver stateSchemasResolver;
95 private final NotificationHandler notificationHandler;
96 private final boolean reconnectOnSchemasChange;
97 private final NetconfNode node;
98 private final EventExecutor eventExecutor;
99 private final NetconfNodeAugmentedOptional nodeOptional;
102 private boolean connected = false;
104 // Message transformer is constructed once the schemas are available
105 private MessageTransformer<NetconfMessage> messageTransformer;
107 public NetconfDevice(final SchemaResourcesDTO schemaResourcesDTO, final RemoteDeviceId id,
108 final RemoteDeviceHandler<NetconfSessionPreferences> salFacade,
109 final ListeningExecutorService globalProcessingExecutor,
110 final boolean reconnectOnSchemasChange) {
111 this(schemaResourcesDTO, id, salFacade, globalProcessingExecutor, reconnectOnSchemasChange, null, null, null,
115 public NetconfDevice(final SchemaResourcesDTO schemaResourcesDTO, final RemoteDeviceId id,
116 final RemoteDeviceHandler<NetconfSessionPreferences> salFacade,
117 final ListeningExecutorService globalProcessingExecutor, final boolean reconnectOnSchemasChange,
118 final DeviceActionFactory deviceActionFactory, final NetconfNode node, final EventExecutor eventExecutor,
119 final NetconfNodeAugmentedOptional nodeOptional) {
121 this.reconnectOnSchemasChange = reconnectOnSchemasChange;
122 this.deviceActionFactory = deviceActionFactory;
124 this.eventExecutor = eventExecutor;
125 this.nodeOptional = nodeOptional;
126 this.schemaRegistry = schemaResourcesDTO.getSchemaRegistry();
127 this.schemaRepository = schemaResourcesDTO.getSchemaRepository();
128 this.schemaContextFactory = schemaResourcesDTO.getSchemaContextFactory();
129 this.salFacade = salFacade;
130 this.stateSchemasResolver = schemaResourcesDTO.getStateSchemasResolver();
131 this.processingExecutor = requireNonNull(globalProcessingExecutor);
132 this.notificationHandler = new NotificationHandler(salFacade, id);
136 public void onRemoteSessionUp(final NetconfSessionPreferences remoteSessionCapabilities,
137 final NetconfDeviceCommunicator listener) {
138 // SchemaContext setup has to be performed in a dedicated thread since
139 // we are in a netty thread in this method
140 // Yang models are being downloaded in this method and it would cause a
141 // deadlock if we used the netty thread
142 // http://netty.io/wiki/thread-model.html
144 LOG.debug("{}: Session to remote device established with {}", id, remoteSessionCapabilities);
146 final BaseSchema baseSchema = resolveBaseSchema(remoteSessionCapabilities.isNotificationsSupported());
147 final NetconfDeviceRpc initRpc = new NetconfDeviceRpc(baseSchema.getSchemaContext(), listener,
148 new NetconfMessageTransformer(baseSchema.getMountPointContext(), false, baseSchema));
149 final ListenableFuture<DeviceSources> sourceResolverFuture = processingExecutor.submit(
150 new DeviceSourcesResolver(id, baseSchema, initRpc, remoteSessionCapabilities, stateSchemasResolver));
152 if (shouldListenOnSchemaChange(remoteSessionCapabilities)) {
153 registerToBaseNetconfStream(initRpc, listener);
156 // Set up the SchemaContext for the device
157 final ListenableFuture<SchemaContext> futureSchema = Futures.transformAsync(sourceResolverFuture, schemas -> {
158 LOG.debug("{}: Resolved device sources to {}", id, schemas);
159 addProvidedSourcesToSchemaRegistry(schemas);
160 return new SchemaSetup(schemas, remoteSessionCapabilities).startResolution();
161 }, processingExecutor);
163 // Potentially acquire mount point list and interpret it
164 final ListenableFuture<MountPointContext> futureContext = Futures.transform(futureSchema, schemaContext -> {
165 // FIXME: check if there is RFC8528 schema available
166 return new EmptyMountPointContext(schemaContext);
167 }, processingExecutor);
169 Futures.addCallback(futureContext, new FutureCallback<MountPointContext>() {
171 public void onSuccess(final MountPointContext result) {
172 handleSalInitializationSuccess(result, remoteSessionCapabilities,
173 getDeviceSpecificRpc(result, listener), listener);
177 public void onFailure(final Throwable cause) {
178 LOG.warn("{}: Unexpected error resolving device sources", id, cause);
180 // No more sources, fail or try to reconnect
181 if (cause instanceof EmptySchemaContextException) {
182 if (nodeOptional != null && nodeOptional.getIgnoreMissingSchemaSources().isAllowed()) {
183 eventExecutor.schedule(() -> {
184 LOG.warn("Reconnection is allowed! This can lead to unexpected errors at runtime.");
185 LOG.warn("{} : No more sources for schema context.", id);
186 LOG.info("{} : Try to remount device.", id);
187 onRemoteSessionDown();
188 salFacade.onDeviceReconnected(remoteSessionCapabilities, node);
189 }, nodeOptional.getIgnoreMissingSchemaSources().getReconnectTime().toJava(),
190 TimeUnit.MILLISECONDS);
195 handleSalInitializationFailure(cause, listener);
196 salFacade.onDeviceFailed(cause);
198 }, MoreExecutors.directExecutor());
201 private void registerToBaseNetconfStream(final NetconfDeviceRpc deviceRpc,
202 final NetconfDeviceCommunicator listener) {
203 // TODO check whether the model describing create subscription is present in schema
204 // Perhaps add a default schema context to support create-subscription if the model was not provided
205 // (same as what we do for base netconf operations in transformer)
206 final ListenableFuture<DOMRpcResult> rpcResultListenableFuture = deviceRpc.invokeRpc(
207 NetconfMessageTransformUtil.CREATE_SUBSCRIPTION_RPC_PATH,
208 NetconfMessageTransformUtil.CREATE_SUBSCRIPTION_RPC_CONTENT);
210 Futures.addCallback(rpcResultListenableFuture, new FutureCallback<DOMRpcResult>() {
212 public void onSuccess(final DOMRpcResult domRpcResult) {
213 notificationHandler.addNotificationFilter(notification -> {
214 if (NetconfCapabilityChange.QNAME.equals(notification.getBody().getNodeType())) {
215 LOG.info("{}: Schemas change detected, reconnecting", id);
216 // Only disconnect is enough,
217 // the reconnecting nature of the connector will take care of reconnecting
218 listener.disconnect();
219 return Optional.empty();
221 return Optional.of(notification);
226 public void onFailure(final Throwable throwable) {
227 LOG.warn("Unable to subscribe to base notification stream. Schemas will not be reloaded on the fly",
230 }, MoreExecutors.directExecutor());
233 private boolean shouldListenOnSchemaChange(final NetconfSessionPreferences remoteSessionCapabilities) {
234 return remoteSessionCapabilities.isNotificationsSupported() && reconnectOnSchemasChange;
237 @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
238 justification = "https://github.com/spotbugs/spotbugs/issues/811")
239 private synchronized void handleSalInitializationSuccess(final MountPointContext result,
240 final NetconfSessionPreferences remoteSessionCapabilities,
241 final DOMRpcService deviceRpc,
242 final RemoteDeviceCommunicator<NetconfMessage> listener) {
243 //NetconfDevice.SchemaSetup can complete after NetconfDeviceCommunicator was closed. In that case do nothing,
244 //since salFacade.onDeviceDisconnected was already called.
246 final BaseSchema baseSchema =
247 remoteSessionCapabilities.isNotificationsSupported()
248 ? BaseSchema.BASE_NETCONF_CTX_WITH_NOTIFICATIONS : BaseSchema.BASE_NETCONF_CTX;
249 this.messageTransformer = new NetconfMessageTransformer(result, true, baseSchema);
251 // salFacade.onDeviceConnected has to be called before the notification handler is initialized
252 this.salFacade.onDeviceConnected(result, remoteSessionCapabilities, deviceRpc,
253 this.deviceActionFactory == null ? null : this.deviceActionFactory.createDeviceAction(
254 this.messageTransformer, listener, result.getSchemaContext()));
255 this.notificationHandler.onRemoteSchemaUp(this.messageTransformer);
257 LOG.info("{}: Netconf connector initialized successfully", id);
259 LOG.warn("{}: Device communicator was closed before schema setup finished.", id);
263 @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
264 justification = "https://github.com/spotbugs/spotbugs/issues/811")
265 private void handleSalInitializationFailure(final Throwable throwable,
266 final RemoteDeviceCommunicator<NetconfMessage> listener) {
267 LOG.error("{}: Initialization in sal failed, disconnecting from device", id, throwable);
269 onRemoteSessionDown();
270 resetMessageTransformer();
274 * Set the transformer to null as is in initial state.
276 private void resetMessageTransformer() {
277 updateTransformer(null);
280 private synchronized void updateTransformer(final MessageTransformer<NetconfMessage> transformer) {
281 messageTransformer = transformer;
284 private synchronized void setConnected(final boolean connected) {
285 this.connected = connected;
288 @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
289 justification = "https://github.com/spotbugs/spotbugs/issues/811")
290 private void addProvidedSourcesToSchemaRegistry(final DeviceSources deviceSources) {
291 final SchemaSourceProvider<YangTextSchemaSource> yangProvider = deviceSources.getSourceProvider();
292 for (final SourceIdentifier sourceId : deviceSources.getProvidedSources()) {
293 sourceRegistrations.add(schemaRegistry.registerSchemaSource(yangProvider,
294 PotentialSchemaSource.create(
295 sourceId, YangTextSchemaSource.class, PotentialSchemaSource.Costs.REMOTE_IO.getValue())));
300 public void onRemoteSessionDown() {
302 notificationHandler.onRemoteSchemaDown();
304 salFacade.onDeviceDisconnected();
305 sourceRegistrations.forEach(SchemaSourceRegistration::close);
306 sourceRegistrations.clear();
307 resetMessageTransformer();
311 public void onRemoteSessionFailed(final Throwable throwable) {
313 salFacade.onDeviceFailed(throwable);
317 public void onNotification(final NetconfMessage notification) {
318 notificationHandler.handleNotification(notification);
321 private static BaseSchema resolveBaseSchema(final boolean notificationSupport) {
322 return notificationSupport ? BaseSchema.BASE_NETCONF_CTX_WITH_NOTIFICATIONS : BaseSchema.BASE_NETCONF_CTX;
325 protected NetconfDeviceRpc getDeviceSpecificRpc(final MountPointContext result,
326 final RemoteDeviceCommunicator<NetconfMessage> listener) {
327 return new NetconfDeviceRpc(result.getSchemaContext(), listener, new NetconfMessageTransformer(result, true));
331 * Just a transfer object containing schema related dependencies. Injected in constructor.
333 public static class SchemaResourcesDTO {
334 private final SchemaSourceRegistry schemaRegistry;
335 private final SchemaRepository schemaRepository;
336 private final SchemaContextFactory schemaContextFactory;
337 private final NetconfDeviceSchemasResolver stateSchemasResolver;
339 public SchemaResourcesDTO(final SchemaSourceRegistry schemaRegistry,
340 final SchemaRepository schemaRepository,
341 final SchemaContextFactory schemaContextFactory,
342 final NetconfDeviceSchemasResolver deviceSchemasResolver) {
343 this.schemaRegistry = requireNonNull(schemaRegistry);
344 this.schemaRepository = requireNonNull(schemaRepository);
345 this.schemaContextFactory = requireNonNull(schemaContextFactory);
346 this.stateSchemasResolver = requireNonNull(deviceSchemasResolver);
349 public SchemaSourceRegistry getSchemaRegistry() {
350 return schemaRegistry;
353 public SchemaRepository getSchemaRepository() {
354 return schemaRepository;
357 public SchemaContextFactory getSchemaContextFactory() {
358 return schemaContextFactory;
361 public NetconfDeviceSchemasResolver getStateSchemasResolver() {
362 return stateSchemasResolver;
367 * A dedicated exception to indicate when we fail to setup a SchemaContext.
369 * @author Robert Varga
371 private static final class EmptySchemaContextException extends Exception {
372 private static final long serialVersionUID = 1L;
374 EmptySchemaContextException(final String message) {
380 * Schema builder that tries to build schema context from provided sources or biggest subset of it.
382 private final class SchemaSetup implements FutureCallback<SchemaContext> {
383 private final SettableFuture<SchemaContext> resultFuture = SettableFuture.create();
385 private final DeviceSources deviceSources;
386 private final NetconfSessionPreferences remoteSessionCapabilities;
387 private final NetconfDeviceCapabilities capabilities;
389 private Collection<SourceIdentifier> requiredSources;
391 SchemaSetup(final DeviceSources deviceSources, final NetconfSessionPreferences remoteSessionCapabilities) {
392 this.deviceSources = deviceSources;
393 this.remoteSessionCapabilities = remoteSessionCapabilities;
394 this.capabilities = remoteSessionCapabilities.getNetconfDeviceCapabilities();
396 requiredSources = deviceSources.getRequiredSources();
397 final Collection<SourceIdentifier> missingSources = filterMissingSources(requiredSources);
399 capabilities.addUnresolvedCapabilities(getQNameFromSourceIdentifiers(missingSources),
400 UnavailableCapability.FailureReason.MissingSource);
401 requiredSources.removeAll(missingSources);
404 ListenableFuture<SchemaContext> startResolution() {
410 public void onSuccess(final SchemaContext result) {
411 LOG.debug("{}: Schema context built successfully from {}", id, requiredSources);
413 final Collection<QName> filteredQNames = Sets.difference(deviceSources.getRequiredSourcesQName(),
414 capabilities.getUnresolvedCapabilites().keySet());
415 capabilities.addCapabilities(filteredQNames.stream().map(entry -> new AvailableCapabilityBuilder()
416 .setCapability(entry.toString()).setCapabilityOrigin(
417 remoteSessionCapabilities.getModuleBasedCapsOrigin().get(entry)).build())
418 .collect(Collectors.toList()));
420 capabilities.addNonModuleBasedCapabilities(remoteSessionCapabilities
421 .getNonModuleCaps().stream().map(entry -> new AvailableCapabilityBuilder()
422 .setCapability(entry).setCapabilityOrigin(
423 remoteSessionCapabilities.getNonModuleBasedCapsOrigin().get(entry)).build())
424 .collect(Collectors.toList()));
426 resultFuture.set(result);
430 public void onFailure(final Throwable cause) {
431 // schemaBuilderFuture.checkedGet() throws only SchemaResolutionException
432 // that might be wrapping a MissingSchemaSourceException so we need to look
433 // at the cause of the exception to make sure we don't misinterpret it.
434 if (cause instanceof MissingSchemaSourceException) {
435 requiredSources = handleMissingSchemaSourceException((MissingSchemaSourceException) cause);
436 } else if (cause instanceof SchemaResolutionException) {
437 requiredSources = handleSchemaResolutionException((SchemaResolutionException) cause);
439 LOG.debug("Unhandled failure", cause);
440 resultFuture.setException(cause);
448 private void trySetupSchema() {
449 if (!requiredSources.isEmpty()) {
450 // Initiate async resolution, drive it back based on the result
451 LOG.trace("{}: Trying to build schema context from {}", id, requiredSources);
452 Futures.addCallback(schemaContextFactory.createSchemaContext(requiredSources), this,
453 MoreExecutors.directExecutor());
455 LOG.debug("{}: no more sources for schema context", id);
456 resultFuture.setException(new EmptySchemaContextException(id + ": No more sources for schema context"));
460 private Collection<SourceIdentifier> filterMissingSources(final Collection<SourceIdentifier> origSources) {
461 return origSources.parallelStream().filter(sourceIdentifier -> {
463 schemaRepository.getSchemaSource(sourceIdentifier, YangTextSchemaSource.class).get();
465 } catch (InterruptedException | ExecutionException e) {
468 }).collect(Collectors.toList());
471 private Collection<SourceIdentifier> handleMissingSchemaSourceException(
472 final MissingSchemaSourceException exception) {
473 // In case source missing, try without it
474 final SourceIdentifier missingSource = exception.getSourceId();
475 LOG.warn("{}: Unable to build schema context, missing source {}, will reattempt without it",
477 LOG.debug("{}: Unable to build schema context, missing source {}, will reattempt without it",
478 id, missingSource, exception);
479 final Collection<QName> qNameOfMissingSource =
480 getQNameFromSourceIdentifiers(Sets.newHashSet(missingSource));
481 if (!qNameOfMissingSource.isEmpty()) {
482 capabilities.addUnresolvedCapabilities(
483 qNameOfMissingSource, UnavailableCapability.FailureReason.MissingSource);
485 return stripUnavailableSource(missingSource);
488 private Collection<SourceIdentifier> handleSchemaResolutionException(
489 final SchemaResolutionException resolutionException) {
490 // In case resolution error, try only with resolved sources
491 // There are two options why schema resolution exception occurred : unsatisfied imports or flawed model
492 // FIXME Do we really have assurance that these two cases cannot happen at once?
493 if (resolutionException.getFailedSource() != null) {
494 // flawed model - exclude it
495 final SourceIdentifier failedSourceId = resolutionException.getFailedSource();
496 LOG.warn("{}: Unable to build schema context, failed to resolve source {}, will reattempt without it",
498 LOG.warn("{}: Unable to build schema context, failed to resolve source {}, will reattempt without it",
499 id, failedSourceId, resolutionException);
500 capabilities.addUnresolvedCapabilities(
501 getQNameFromSourceIdentifiers(Collections.singleton(failedSourceId)),
502 UnavailableCapability.FailureReason.UnableToResolve);
503 return stripUnavailableSource(resolutionException.getFailedSource());
505 // unsatisfied imports
506 final Set<SourceIdentifier> unresolvedSources = resolutionException.getUnsatisfiedImports().keySet();
507 capabilities.addUnresolvedCapabilities(getQNameFromSourceIdentifiers(unresolvedSources),
508 UnavailableCapability.FailureReason.UnableToResolve);
509 LOG.warn("{}: Unable to build schema context, unsatisfied imports {}, will reattempt with resolved only",
510 id, resolutionException.getUnsatisfiedImports());
511 LOG.debug("{}: Unable to build schema context, unsatisfied imports {}, will reattempt with resolved only",
512 id, resolutionException.getUnsatisfiedImports(), resolutionException);
513 return resolutionException.getResolvedSources();
516 private Collection<SourceIdentifier> stripUnavailableSource(final SourceIdentifier sourceIdToRemove) {
517 final LinkedList<SourceIdentifier> sourceIdentifiers = new LinkedList<>(requiredSources);
518 checkState(sourceIdentifiers.remove(sourceIdToRemove),
519 "%s: Trying to remove %s from %s failed", id, sourceIdToRemove, requiredSources);
520 return sourceIdentifiers;
523 private Collection<QName> getQNameFromSourceIdentifiers(final Collection<SourceIdentifier> identifiers) {
524 final Collection<QName> qNames = Collections2.transform(identifiers, this::getQNameFromSourceIdentifier);
526 if (qNames.isEmpty()) {
527 LOG.debug("{}: Unable to map any source identifiers to a capability reported by device : {}", id,
530 return Collections2.filter(qNames, Predicates.notNull());
533 private QName getQNameFromSourceIdentifier(final SourceIdentifier identifier) {
534 // Required sources are all required and provided merged in DeviceSourcesResolver
535 for (final QName qname : deviceSources.getRequiredSourcesQName()) {
536 if (!qname.getLocalName().equals(identifier.getName())) {
540 if (identifier.getRevision().equals(qname.getRevision())) {
544 LOG.warn("Unable to map identifier to a devices reported capability: {} Available: {}",identifier,
545 deviceSources.getRequiredSourcesQName());
546 // return null since we cannot find the QName,
547 // this capability will be removed from required sources and not reported as unresolved-capability