*/
package org.opendaylight.netconf.sal.connect.netconf;
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
+
import com.google.common.base.Predicates;
import com.google.common.collect.Collections2;
-import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
-import com.google.common.util.concurrent.CheckedFuture;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
+import com.google.common.util.concurrent.SettableFuture;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+import io.netty.util.concurrent.EventExecutor;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
+import java.util.Optional;
import java.util.Set;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutorService;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
-import javax.annotation.concurrent.GuardedBy;
-import org.opendaylight.controller.md.sal.dom.api.DOMNotification;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
-import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
+import org.checkerframework.checker.lock.qual.GuardedBy;
+import org.opendaylight.mdsal.dom.api.DOMRpcResult;
+import org.opendaylight.mdsal.dom.api.DOMRpcService;
import org.opendaylight.netconf.api.NetconfMessage;
+import org.opendaylight.netconf.sal.connect.api.DeviceActionFactory;
import org.opendaylight.netconf.sal.connect.api.MessageTransformer;
-import org.opendaylight.netconf.sal.connect.api.NetconfDeviceSchemas;
import org.opendaylight.netconf.sal.connect.api.NetconfDeviceSchemasResolver;
import org.opendaylight.netconf.sal.connect.api.RemoteDevice;
import org.opendaylight.netconf.sal.connect.api.RemoteDeviceCommunicator;
import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCommunicator;
import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
import org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceRpc;
-import org.opendaylight.netconf.sal.connect.netconf.schema.NetconfRemoteSchemaYangSourceProvider;
-import org.opendaylight.netconf.sal.connect.netconf.schema.YangLibrarySchemaYangSourceProvider;
import org.opendaylight.netconf.sal.connect.netconf.schema.mapping.BaseSchema;
import org.opendaylight.netconf.sal.connect.netconf.schema.mapping.NetconfMessageTransformer;
import org.opendaylight.netconf.sal.connect.netconf.util.NetconfMessageTransformUtil;
import org.opendaylight.netconf.sal.connect.util.RemoteDeviceId;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfCapabilityChange;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.optional.rev190614.NetconfNodeAugmentedOptional;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.available.capabilities.AvailableCapabilityBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.unavailable.capabilities.UnavailableCapability;
+import org.opendaylight.yangtools.rcf8528.data.util.EmptyMountPointContext;
+import org.opendaylight.yangtools.rfc8528.data.api.MountPointContext;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import org.opendaylight.yangtools.yang.model.repo.api.MissingSchemaSourceException;
-import org.opendaylight.yangtools.yang.model.repo.api.RevisionSourceIdentifier;
import org.opendaylight.yangtools.yang.model.repo.api.SchemaContextFactory;
import org.opendaylight.yangtools.yang.model.repo.api.SchemaRepository;
import org.opendaylight.yangtools.yang.model.repo.api.SchemaResolutionException;
-import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceException;
-import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceRepresentation;
import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
import org.opendaylight.yangtools.yang.model.repo.spi.PotentialSchemaSource;
import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceProvider;
import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistration;
import org.opendaylight.yangtools.yang.model.repo.spi.SchemaSourceRegistry;
-import org.opendaylight.yangtools.yang.parser.util.ASTSchemaSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class NetconfDevice
implements RemoteDevice<NetconfSessionPreferences, NetconfMessage, NetconfDeviceCommunicator> {
- private static final Logger LOG = LoggerFactory.getLogger(NetconfDevice.class);
+ @SuppressFBWarnings(value = "SLF4J_LOGGER_SHOULD_BE_PRIVATE",
+ justification = "Needed for common logging of related classes")
+ static final Logger LOG = LoggerFactory.getLogger(NetconfDevice.class);
protected final RemoteDeviceId id;
- private final boolean reconnectOnSchemasChange;
-
protected final SchemaContextFactory schemaContextFactory;
- private final RemoteDeviceHandler<NetconfSessionPreferences> salFacade;
- private final ListeningExecutorService processingExecutor;
protected final SchemaSourceRegistry schemaRegistry;
protected final SchemaRepository schemaRepository;
+
+ protected final List<SchemaSourceRegistration<?>> sourceRegistrations = new ArrayList<>();
+
+ private final RemoteDeviceHandler<NetconfSessionPreferences> salFacade;
+ private final ListeningExecutorService processingExecutor;
+ private final DeviceActionFactory deviceActionFactory;
private final NetconfDeviceSchemasResolver stateSchemasResolver;
private final NotificationHandler notificationHandler;
- protected final List<SchemaSourceRegistration<? extends SchemaSourceRepresentation>> sourceRegistrations =
- new ArrayList<>();
+ private final boolean reconnectOnSchemasChange;
+ private final NetconfNode node;
+ private final EventExecutor eventExecutor;
+ private final NetconfNodeAugmentedOptional nodeOptional;
+
@GuardedBy("this")
private boolean connected = false;
// Message transformer is constructed once the schemas are available
private MessageTransformer<NetconfMessage> messageTransformer;
- /**
- * Create rpc implementation capable of handling RPC for monitoring and notifications
- * even before the schemas of remote device are downloaded.
- */
- static NetconfDeviceRpc getRpcForInitialization(final NetconfDeviceCommunicator listener,
- final boolean notificationSupport) {
- final BaseSchema baseSchema = notificationSupport
- ? BaseSchema.BASE_NETCONF_CTX_WITH_NOTIFICATIONS
- : BaseSchema.BASE_NETCONF_CTX;
-
- return new NetconfDeviceRpc(baseSchema.getSchemaContext(), listener,
- new NetconfMessageTransformer(baseSchema.getSchemaContext(), false, baseSchema));
+ public NetconfDevice(final SchemaResourcesDTO schemaResourcesDTO, final RemoteDeviceId id,
+ final RemoteDeviceHandler<NetconfSessionPreferences> salFacade,
+ final ListeningExecutorService globalProcessingExecutor,
+ final boolean reconnectOnSchemasChange) {
+ this(schemaResourcesDTO, id, salFacade, globalProcessingExecutor, reconnectOnSchemasChange, null, null, null,
+ null);
}
public NetconfDevice(final SchemaResourcesDTO schemaResourcesDTO, final RemoteDeviceId id,
- final RemoteDeviceHandler<NetconfSessionPreferences> salFacade,
- final ExecutorService globalProcessingExecutor, final boolean reconnectOnSchemasChange) {
+ final RemoteDeviceHandler<NetconfSessionPreferences> salFacade,
+ final ListeningExecutorService globalProcessingExecutor, final boolean reconnectOnSchemasChange,
+ final DeviceActionFactory deviceActionFactory, final NetconfNode node, final EventExecutor eventExecutor,
+ final NetconfNodeAugmentedOptional nodeOptional) {
this.id = id;
this.reconnectOnSchemasChange = reconnectOnSchemasChange;
+ this.deviceActionFactory = deviceActionFactory;
+ this.node = node;
+ this.eventExecutor = eventExecutor;
+ this.nodeOptional = nodeOptional;
this.schemaRegistry = schemaResourcesDTO.getSchemaRegistry();
this.schemaRepository = schemaResourcesDTO.getSchemaRepository();
this.schemaContextFactory = schemaResourcesDTO.getSchemaContextFactory();
this.salFacade = salFacade;
this.stateSchemasResolver = schemaResourcesDTO.getStateSchemasResolver();
- this.processingExecutor = MoreExecutors.listeningDecorator(globalProcessingExecutor);
+ this.processingExecutor = requireNonNull(globalProcessingExecutor);
this.notificationHandler = new NotificationHandler(salFacade, id);
}
setConnected(true);
LOG.debug("{}: Session to remote device established with {}", id, remoteSessionCapabilities);
- final NetconfDeviceRpc initRpc =
- getRpcForInitialization(listener, remoteSessionCapabilities.isNotificationsSupported());
- final DeviceSourcesResolver task =
- new DeviceSourcesResolver(remoteSessionCapabilities, id, stateSchemasResolver, initRpc);
- final ListenableFuture<DeviceSources> sourceResolverFuture = processingExecutor.submit(task);
+ final BaseSchema baseSchema = resolveBaseSchema(remoteSessionCapabilities.isNotificationsSupported());
+ final NetconfDeviceRpc initRpc = new NetconfDeviceRpc(baseSchema.getSchemaContext(), listener,
+ new NetconfMessageTransformer(baseSchema.getMountPointContext(), false, baseSchema));
+ final ListenableFuture<DeviceSources> sourceResolverFuture = processingExecutor.submit(
+ new DeviceSourcesResolver(id, baseSchema, initRpc, remoteSessionCapabilities, stateSchemasResolver));
if (shouldListenOnSchemaChange(remoteSessionCapabilities)) {
registerToBaseNetconfStream(initRpc, listener);
}
- final FutureCallback<DeviceSources> resolvedSourceCallback = new FutureCallback<DeviceSources>() {
- @Override
- public void onSuccess(final DeviceSources result) {
- addProvidedSourcesToSchemaRegistry(result);
- setUpSchema(result);
- }
+ // Set up the SchemaContext for the device
+ final ListenableFuture<SchemaContext> futureSchema = Futures.transformAsync(sourceResolverFuture, schemas -> {
+ LOG.debug("{}: Resolved device sources to {}", id, schemas);
+ addProvidedSourcesToSchemaRegistry(schemas);
+ return new SchemaSetup(schemas, remoteSessionCapabilities).startResolution();
+ }, processingExecutor);
- private void setUpSchema(final DeviceSources result) {
- processingExecutor.submit(new SchemaSetup(result, remoteSessionCapabilities, listener));
- }
+ // Potentially acquire mount point list and interpret it
+ final ListenableFuture<MountPointContext> futureContext = Futures.transform(futureSchema, schemaContext -> {
+ // FIXME: check if there is RFC8528 schema available
+ return new EmptyMountPointContext(schemaContext);
+ }, processingExecutor);
+ Futures.addCallback(futureContext, new FutureCallback<MountPointContext>() {
@Override
- public void onFailure(final Throwable throwable) {
- LOG.warn("{}: Unexpected error resolving device sources: {}", id, throwable);
- handleSalInitializationFailure(throwable, listener);
+ public void onSuccess(final MountPointContext result) {
+ handleSalInitializationSuccess(result, remoteSessionCapabilities,
+ getDeviceSpecificRpc(result, listener), listener);
}
- };
- Futures.addCallback(sourceResolverFuture, resolvedSourceCallback, MoreExecutors.directExecutor());
+ @Override
+ public void onFailure(final Throwable cause) {
+ LOG.warn("{}: Unexpected error resolving device sources", id, cause);
+
+ // No more sources, fail or try to reconnect
+ if (cause instanceof EmptySchemaContextException) {
+ if (nodeOptional != null && nodeOptional.getIgnoreMissingSchemaSources().isAllowed()) {
+ eventExecutor.schedule(() -> {
+ LOG.warn("Reconnection is allowed! This can lead to unexpected errors at runtime.");
+ LOG.warn("{} : No more sources for schema context.", id);
+ LOG.info("{} : Try to remount device.", id);
+ onRemoteSessionDown();
+ salFacade.onDeviceReconnected(remoteSessionCapabilities, node);
+ }, nodeOptional.getIgnoreMissingSchemaSources().getReconnectTime(), TimeUnit.MILLISECONDS);
+ return;
+ }
+ }
+
+ handleSalInitializationFailure(cause, listener);
+ salFacade.onDeviceFailed(cause);
+ }
+ }, MoreExecutors.directExecutor());
}
private void registerToBaseNetconfStream(final NetconfDeviceRpc deviceRpc,
// TODO check whether the model describing create subscription is present in schema
// Perhaps add a default schema context to support create-subscription if the model was not provided
// (same as what we do for base netconf operations in transformer)
- final CheckedFuture<DOMRpcResult, DOMRpcException> rpcResultListenableFuture = deviceRpc.invokeRpc(
- NetconfMessageTransformUtil.toPath(NetconfMessageTransformUtil.CREATE_SUBSCRIPTION_RPC_QNAME),
+ final ListenableFuture<DOMRpcResult> rpcResultListenableFuture = deviceRpc.invokeRpc(
+ NetconfMessageTransformUtil.CREATE_SUBSCRIPTION_RPC_PATH,
NetconfMessageTransformUtil.CREATE_SUBSCRIPTION_RPC_CONTENT);
- final NotificationHandler.NotificationFilter filter = new NotificationHandler.NotificationFilter() {
- @Override
- public Optional<DOMNotification> filterNotification(final DOMNotification notification) {
- if (isCapabilityChanged(notification)) {
- LOG.info("{}: Schemas change detected, reconnecting", id);
- // Only disconnect is enough,
- // the reconnecting nature of the connector will take care of reconnecting
- listener.disconnect();
- return Optional.absent();
- }
- return Optional.of(notification);
- }
-
- private boolean isCapabilityChanged(final DOMNotification notification) {
- return notification.getBody().getNodeType().equals(NetconfCapabilityChange.QNAME);
- }
- };
-
Futures.addCallback(rpcResultListenableFuture, new FutureCallback<DOMRpcResult>() {
@Override
public void onSuccess(final DOMRpcResult domRpcResult) {
- notificationHandler.addNotificationFilter(filter);
+ notificationHandler.addNotificationFilter(notification -> {
+ if (NetconfCapabilityChange.QNAME.equals(notification.getBody().getNodeType())) {
+ LOG.info("{}: Schemas change detected, reconnecting", id);
+ // Only disconnect is enough,
+ // the reconnecting nature of the connector will take care of reconnecting
+ listener.disconnect();
+ return Optional.empty();
+ }
+ return Optional.of(notification);
+ });
}
@Override
return remoteSessionCapabilities.isNotificationsSupported() && reconnectOnSchemasChange;
}
- private synchronized void handleSalInitializationSuccess(final SchemaContext result,
+ @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
+ justification = "https://github.com/spotbugs/spotbugs/issues/811")
+ private synchronized void handleSalInitializationSuccess(final MountPointContext result,
final NetconfSessionPreferences remoteSessionCapabilities,
- final DOMRpcService deviceRpc) {
+ final DOMRpcService deviceRpc,
+ final RemoteDeviceCommunicator<NetconfMessage> listener) {
//NetconfDevice.SchemaSetup can complete after NetconfDeviceCommunicator was closed. In that case do nothing,
//since salFacade.onDeviceDisconnected was already called.
if (connected) {
final BaseSchema baseSchema =
remoteSessionCapabilities.isNotificationsSupported()
? BaseSchema.BASE_NETCONF_CTX_WITH_NOTIFICATIONS : BaseSchema.BASE_NETCONF_CTX;
- messageTransformer = new NetconfMessageTransformer(result, true, baseSchema);
+ this.messageTransformer = new NetconfMessageTransformer(result, true, baseSchema);
- updateTransformer(messageTransformer);
// salFacade.onDeviceConnected has to be called before the notification handler is initialized
- salFacade.onDeviceConnected(result, remoteSessionCapabilities, deviceRpc);
- notificationHandler.onRemoteSchemaUp(messageTransformer);
+ this.salFacade.onDeviceConnected(result, remoteSessionCapabilities, deviceRpc,
+ this.deviceActionFactory == null ? null : this.deviceActionFactory.createDeviceAction(
+ this.messageTransformer, listener, result.getSchemaContext()));
+ this.notificationHandler.onRemoteSchemaUp(this.messageTransformer);
LOG.info("{}: Netconf connector initialized successfully", id);
} else {
}
}
+ @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
+ justification = "https://github.com/spotbugs/spotbugs/issues/811")
private void handleSalInitializationFailure(final Throwable throwable,
final RemoteDeviceCommunicator<NetconfMessage> listener) {
LOG.error("{}: Initialization in sal failed, disconnecting from device", id, throwable);
updateTransformer(null);
}
- private void updateTransformer(final MessageTransformer<NetconfMessage> transformer) {
+ private synchronized void updateTransformer(final MessageTransformer<NetconfMessage> transformer) {
messageTransformer = transformer;
}
this.connected = connected;
}
+ @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
+ justification = "https://github.com/spotbugs/spotbugs/issues/811")
private void addProvidedSourcesToSchemaRegistry(final DeviceSources deviceSources) {
final SchemaSourceProvider<YangTextSchemaSource> yangProvider = deviceSources.getSourceProvider();
for (final SourceIdentifier sourceId : deviceSources.getProvidedSources()) {
notificationHandler.onRemoteSchemaDown();
salFacade.onDeviceDisconnected();
- for (final SchemaSourceRegistration<? extends SchemaSourceRepresentation> sourceRegistration
- : sourceRegistrations) {
- sourceRegistration.close();
- }
+ sourceRegistrations.forEach(SchemaSourceRegistration::close);
+ sourceRegistrations.clear();
resetMessageTransformer();
}
notificationHandler.handleNotification(notification);
}
+ private static BaseSchema resolveBaseSchema(final boolean notificationSupport) {
+ return notificationSupport ? BaseSchema.BASE_NETCONF_CTX_WITH_NOTIFICATIONS : BaseSchema.BASE_NETCONF_CTX;
+ }
+
+ protected NetconfDeviceRpc getDeviceSpecificRpc(final MountPointContext result,
+ final RemoteDeviceCommunicator<NetconfMessage> listener) {
+ return new NetconfDeviceRpc(result.getSchemaContext(), listener, new NetconfMessageTransformer(result, true));
+ }
+
/**
* Just a transfer object containing schema related dependencies. Injected in constructor.
*/
final SchemaRepository schemaRepository,
final SchemaContextFactory schemaContextFactory,
final NetconfDeviceSchemasResolver deviceSchemasResolver) {
- this.schemaRegistry = Preconditions.checkNotNull(schemaRegistry);
- this.schemaRepository = Preconditions.checkNotNull(schemaRepository);
- this.schemaContextFactory = Preconditions.checkNotNull(schemaContextFactory);
- this.stateSchemasResolver = Preconditions.checkNotNull(deviceSchemasResolver);
+ this.schemaRegistry = requireNonNull(schemaRegistry);
+ this.schemaRepository = requireNonNull(schemaRepository);
+ this.schemaContextFactory = requireNonNull(schemaContextFactory);
+ this.stateSchemasResolver = requireNonNull(deviceSchemasResolver);
}
public SchemaSourceRegistry getSchemaRegistry() {
}
/**
- * Schema building callable.
+ * A dedicated exception to indicate when we fail to setup a SchemaContext.
+ *
+ * @author Robert Varga
*/
- private static class DeviceSourcesResolver implements Callable<DeviceSources> {
+ private static final class EmptySchemaContextException extends Exception {
+ private static final long serialVersionUID = 1L;
- private final NetconfDeviceRpc deviceRpc;
- private final NetconfSessionPreferences remoteSessionCapabilities;
- private final RemoteDeviceId id;
- private final NetconfDeviceSchemasResolver stateSchemasResolver;
-
- DeviceSourcesResolver(final NetconfDeviceRpc deviceRpc,
- final NetconfSessionPreferences remoteSessionCapabilities,
- final RemoteDeviceId id, final NetconfDeviceSchemasResolver stateSchemasResolver) {
- this.deviceRpc = deviceRpc;
- this.remoteSessionCapabilities = remoteSessionCapabilities;
- this.id = id;
- this.stateSchemasResolver = stateSchemasResolver;
- }
-
- DeviceSourcesResolver(final NetconfSessionPreferences remoteSessionCapabilities, final RemoteDeviceId id,
- final NetconfDeviceSchemasResolver stateSchemasResolver,
- final NetconfDeviceRpc rpcForMonitoring) {
- this(rpcForMonitoring, remoteSessionCapabilities, id, stateSchemasResolver);
- }
-
- @Override
- public DeviceSources call() throws Exception {
- final NetconfDeviceSchemas availableSchemas =
- stateSchemasResolver.resolve(deviceRpc, remoteSessionCapabilities, id);
- LOG.debug("{}: Schemas exposed by ietf-netconf-monitoring: {}", id,
- availableSchemas.getAvailableYangSchemasQNames());
-
- final Set<QName> requiredSources = Sets.newHashSet(remoteSessionCapabilities.getModuleBasedCaps());
- final Set<QName> providedSources = availableSchemas.getAvailableYangSchemasQNames();
-
- final Set<QName> requiredSourcesNotProvided = Sets.difference(requiredSources, providedSources);
- if (!requiredSourcesNotProvided.isEmpty()) {
- LOG.warn("{}: Netconf device does not provide all yang models reported in hello message capabilities,"
- + " required but not provided: {}", id, requiredSourcesNotProvided);
- LOG.warn("{}: Attempting to build schema context from required sources", id);
- }
-
- // Here all the sources reported in netconf monitoring are merged with those reported in hello.
- // It is necessary to perform this since submodules are not mentioned in hello but still required.
- // This clashes with the option of a user to specify supported yang models manually in configuration
- // for netconf-connector and as a result one is not able to fully override yang models of a device.
- // It is only possible to add additional models.
- final Set<QName> providedSourcesNotRequired = Sets.difference(providedSources, requiredSources);
- if (!providedSourcesNotRequired.isEmpty()) {
- LOG.warn("{}: Netconf device provides additional yang models not reported in "
- + "hello message capabilities: {}", id, providedSourcesNotRequired);
- LOG.warn("{}: Adding provided but not required sources as required to prevent failures", id);
- LOG.debug("{}: Netconf device reported in hello: {}", id, requiredSources);
- requiredSources.addAll(providedSourcesNotRequired);
- }
-
- final SchemaSourceProvider<YangTextSchemaSource> sourceProvider;
- if (availableSchemas instanceof LibraryModulesSchemas) {
- sourceProvider = new YangLibrarySchemaYangSourceProvider(id,
- ((LibraryModulesSchemas) availableSchemas).getAvailableModels());
- } else {
- sourceProvider = new NetconfRemoteSchemaYangSourceProvider(id, deviceRpc);
- }
-
- return new DeviceSources(requiredSources, providedSources, sourceProvider);
- }
- }
-
- /**
- * Contains RequiredSources - sources from capabilities.
- */
- private static final class DeviceSources {
- private final Set<QName> requiredSources;
- private final Set<QName> providedSources;
- private final SchemaSourceProvider<YangTextSchemaSource> sourceProvider;
-
- DeviceSources(final Set<QName> requiredSources, final Set<QName> providedSources,
- final SchemaSourceProvider<YangTextSchemaSource> sourceProvider) {
- this.requiredSources = requiredSources;
- this.providedSources = providedSources;
- this.sourceProvider = sourceProvider;
- }
-
- public Set<QName> getRequiredSourcesQName() {
- return requiredSources;
- }
-
- public Set<QName> getProvidedSourcesQName() {
- return providedSources;
- }
-
- public Collection<SourceIdentifier> getRequiredSources() {
- return Collections2.transform(requiredSources, DeviceSources::toSourceId);
- }
-
- public Collection<SourceIdentifier> getProvidedSources() {
- return Collections2.transform(providedSources, DeviceSources::toSourceId);
- }
-
- public SchemaSourceProvider<YangTextSchemaSource> getSourceProvider() {
- return sourceProvider;
- }
-
- private static SourceIdentifier toSourceId(final QName input) {
- return RevisionSourceIdentifier.create(input.getLocalName(),
- Optional.fromNullable(input.getFormattedRevision()));
+ EmptySchemaContextException(final String message) {
+ super(message);
}
}
/**
* Schema builder that tries to build schema context from provided sources or biggest subset of it.
*/
- private final class SchemaSetup implements Runnable {
+ private final class SchemaSetup implements FutureCallback<SchemaContext> {
+ private final SettableFuture<SchemaContext> resultFuture = SettableFuture.create();
+
private final DeviceSources deviceSources;
private final NetconfSessionPreferences remoteSessionCapabilities;
- private final RemoteDeviceCommunicator<NetconfMessage> listener;
private final NetconfDeviceCapabilities capabilities;
- SchemaSetup(final DeviceSources deviceSources, final NetconfSessionPreferences remoteSessionCapabilities,
- final RemoteDeviceCommunicator<NetconfMessage> listener) {
+ private Collection<SourceIdentifier> requiredSources;
+
+ SchemaSetup(final DeviceSources deviceSources, final NetconfSessionPreferences remoteSessionCapabilities) {
this.deviceSources = deviceSources;
this.remoteSessionCapabilities = remoteSessionCapabilities;
- this.listener = listener;
this.capabilities = remoteSessionCapabilities.getNetconfDeviceCapabilities();
- }
-
- @Override
- public void run() {
- final Collection<SourceIdentifier> requiredSources = deviceSources.getRequiredSources();
+ requiredSources = deviceSources.getRequiredSources();
final Collection<SourceIdentifier> missingSources = filterMissingSources(requiredSources);
capabilities.addUnresolvedCapabilities(getQNameFromSourceIdentifiers(missingSources),
UnavailableCapability.FailureReason.MissingSource);
-
requiredSources.removeAll(missingSources);
- setUpSchema(requiredSources);
}
- private Collection<SourceIdentifier> filterMissingSources(final Collection<SourceIdentifier> requiredSources) {
+ ListenableFuture<SchemaContext> startResolution() {
+ trySetupSchema();
+ return resultFuture;
+ }
- return requiredSources.parallelStream().filter(sourceIdentifier -> {
- boolean remove = false;
- try {
- schemaRepository.getSchemaSource(sourceIdentifier, ASTSchemaSource.class).checkedGet();
- } catch (SchemaSourceException e) {
- remove = true;
- }
- return remove;
- }).collect(Collectors.toList());
+ @Override
+ public void onSuccess(final SchemaContext result) {
+ LOG.debug("{}: Schema context built successfully from {}", id, requiredSources);
+
+ final Collection<QName> filteredQNames = Sets.difference(deviceSources.getRequiredSourcesQName(),
+ capabilities.getUnresolvedCapabilites().keySet());
+ capabilities.addCapabilities(filteredQNames.stream().map(entry -> new AvailableCapabilityBuilder()
+ .setCapability(entry.toString()).setCapabilityOrigin(
+ remoteSessionCapabilities.getModuleBasedCapsOrigin().get(entry)).build())
+ .collect(Collectors.toList()));
+
+ capabilities.addNonModuleBasedCapabilities(remoteSessionCapabilities
+ .getNonModuleCaps().stream().map(entry -> new AvailableCapabilityBuilder()
+ .setCapability(entry).setCapabilityOrigin(
+ remoteSessionCapabilities.getNonModuleBasedCapsOrigin().get(entry)).build())
+ .collect(Collectors.toList()));
+
+ resultFuture.set(result);
}
- /**
- * Build schema context, in case of success or final failure notify device.
- */
- @SuppressWarnings("checkstyle:IllegalCatch")
- private void setUpSchema(Collection<SourceIdentifier> requiredSources) {
- while (!requiredSources.isEmpty()) {
+ @Override
+ public void onFailure(final Throwable cause) {
+ // schemaBuilderFuture.checkedGet() throws only SchemaResolutionException
+ // that might be wrapping a MissingSchemaSourceException so we need to look
+ // at the cause of the exception to make sure we don't misinterpret it.
+ if (cause instanceof MissingSchemaSourceException) {
+ requiredSources = handleMissingSchemaSourceException((MissingSchemaSourceException) cause);
+ } else if (cause instanceof SchemaResolutionException) {
+ requiredSources = handleSchemaResolutionException((SchemaResolutionException) cause);
+ } else {
+ LOG.debug("Unhandled failure", cause);
+ resultFuture.setException(cause);
+ // No more trying...
+ return;
+ }
+
+ trySetupSchema();
+ }
+
+ private void trySetupSchema() {
+ if (!requiredSources.isEmpty()) {
+ // Initiate async resolution, drive it back based on the result
LOG.trace("{}: Trying to build schema context from {}", id, requiredSources);
+ Futures.addCallback(schemaContextFactory.createSchemaContext(requiredSources), this,
+ MoreExecutors.directExecutor());
+ } else {
+ LOG.debug("{}: no more sources for schema context", id);
+ resultFuture.setException(new EmptySchemaContextException(id + ": No more sources for schema context"));
+ }
+ }
+
+ private Collection<SourceIdentifier> filterMissingSources(final Collection<SourceIdentifier> origSources) {
+ return origSources.parallelStream().filter(sourceIdentifier -> {
try {
- final CheckedFuture<SchemaContext, SchemaResolutionException> schemaBuilderFuture =
- schemaContextFactory.createSchemaContext(requiredSources);
- final SchemaContext result = schemaBuilderFuture.checkedGet();
- LOG.debug("{}: Schema context built successfully from {}", id, requiredSources);
- final Collection<QName> filteredQNames = Sets.difference(deviceSources.getRequiredSourcesQName(),
- capabilities.getUnresolvedCapabilites().keySet());
- capabilities.addCapabilities(filteredQNames.stream().map(entry -> new AvailableCapabilityBuilder()
- .setCapability(entry.toString()).setCapabilityOrigin(
- remoteSessionCapabilities.getModuleBasedCapsOrigin().get(entry)).build())
- .collect(Collectors.toList()));
-
- capabilities.addNonModuleBasedCapabilities(remoteSessionCapabilities
- .getNonModuleCaps().stream().map(entry -> new AvailableCapabilityBuilder()
- .setCapability(entry).setCapabilityOrigin(
- remoteSessionCapabilities.getNonModuleBasedCapsOrigin().get(entry)).build())
- .collect(Collectors.toList()));
-
- handleSalInitializationSuccess(result, remoteSessionCapabilities, getDeviceSpecificRpc(result));
- return;
- } catch (final SchemaResolutionException e) {
- // schemaBuilderFuture.checkedGet() throws only SchemaResolutionException
- // that might be wrapping a MissingSchemaSourceException so we need to look
- // at the cause of the exception to make sure we don't misinterpret it.
- if (e.getCause() instanceof MissingSchemaSourceException) {
- requiredSources = handleMissingSchemaSourceException(
- requiredSources, (MissingSchemaSourceException) e.getCause());
- continue;
- }
- requiredSources = handleSchemaResolutionException(requiredSources, e);
- } catch (final Exception e) {
- // unknown error, fail
- handleSalInitializationFailure(e, listener);
- return;
+ schemaRepository.getSchemaSource(sourceIdentifier, YangTextSchemaSource.class).get();
+ return false;
+ } catch (InterruptedException | ExecutionException e) {
+ return true;
}
- }
- // No more sources, fail
- final IllegalStateException cause = new IllegalStateException(id + ": No more sources for schema context");
- handleSalInitializationFailure(cause, listener);
- salFacade.onDeviceFailed(cause);
+ }).collect(Collectors.toList());
}
private Collection<SourceIdentifier> handleMissingSchemaSourceException(
- final Collection<SourceIdentifier> requiredSources, final MissingSchemaSourceException exception) {
+ final MissingSchemaSourceException exception) {
// In case source missing, try without it
final SourceIdentifier missingSource = exception.getSourceId();
- LOG.warn("{}: Unable to build schema context, missing source {}, will reattempt without it", id,
- missingSource);
+ LOG.warn("{}: Unable to build schema context, missing source {}, will reattempt without it",
+ id, missingSource);
LOG.debug("{}: Unable to build schema context, missing source {}, will reattempt without it",
- exception);
+ id, missingSource, exception);
final Collection<QName> qNameOfMissingSource =
- getQNameFromSourceIdentifiers(Sets.newHashSet(missingSource));
+ getQNameFromSourceIdentifiers(Sets.newHashSet(missingSource));
if (!qNameOfMissingSource.isEmpty()) {
capabilities.addUnresolvedCapabilities(
qNameOfMissingSource, UnavailableCapability.FailureReason.MissingSource);
}
- return stripUnavailableSource(requiredSources, missingSource);
+ return stripUnavailableSource(missingSource);
}
private Collection<SourceIdentifier> handleSchemaResolutionException(
- final Collection<SourceIdentifier> requiredSources, final SchemaResolutionException resolutionException) {
+ final SchemaResolutionException resolutionException) {
// In case resolution error, try only with resolved sources
// There are two options why schema resolution exception occurred : unsatisfied imports or flawed model
// FIXME Do we really have assurance that these two cases cannot happen at once?
// flawed model - exclude it
final SourceIdentifier failedSourceId = resolutionException.getFailedSource();
LOG.warn("{}: Unable to build schema context, failed to resolve source {}, will reattempt without it",
- id, failedSourceId);
+ id, failedSourceId);
LOG.warn("{}: Unable to build schema context, failed to resolve source {}, will reattempt without it",
- id, resolutionException);
- capabilities.addUnresolvedCapabilities(getQNameFromSourceIdentifiers(
- Collections.singleton(failedSourceId)), UnavailableCapability.FailureReason.UnableToResolve);
- return stripUnavailableSource(requiredSources, resolutionException.getFailedSource());
+ id, failedSourceId, resolutionException);
+ capabilities.addUnresolvedCapabilities(
+ getQNameFromSourceIdentifiers(Collections.singleton(failedSourceId)),
+ UnavailableCapability.FailureReason.UnableToResolve);
+ return stripUnavailableSource(resolutionException.getFailedSource());
}
// unsatisfied imports
final Set<SourceIdentifier> unresolvedSources = resolutionException.getUnsatisfiedImports().keySet();
- capabilities.addUnresolvedCapabilities(
- getQNameFromSourceIdentifiers(unresolvedSources), UnavailableCapability.FailureReason.UnableToResolve);
+ capabilities.addUnresolvedCapabilities(getQNameFromSourceIdentifiers(unresolvedSources),
+ UnavailableCapability.FailureReason.UnableToResolve);
LOG.warn("{}: Unable to build schema context, unsatisfied imports {}, will reattempt with resolved only",
- id, resolutionException.getUnsatisfiedImports());
+ id, resolutionException.getUnsatisfiedImports());
LOG.debug("{}: Unable to build schema context, unsatisfied imports {}, will reattempt with resolved only",
- resolutionException);
+ id, resolutionException.getUnsatisfiedImports(), resolutionException);
return resolutionException.getResolvedSources();
}
- protected NetconfDeviceRpc getDeviceSpecificRpc(final SchemaContext result) {
- return new NetconfDeviceRpc(result, listener, new NetconfMessageTransformer(result, true));
- }
-
- private Collection<SourceIdentifier> stripUnavailableSource(final Collection<SourceIdentifier> requiredSources,
- final SourceIdentifier sourceIdToRemove) {
- final LinkedList<SourceIdentifier> sourceIdentifiers = Lists.newLinkedList(requiredSources);
- final boolean removed = sourceIdentifiers.remove(sourceIdToRemove);
- Preconditions.checkState(
- removed, "{}: Trying to remove {} from {} failed", id, sourceIdToRemove, requiredSources);
+ private Collection<SourceIdentifier> stripUnavailableSource(final SourceIdentifier sourceIdToRemove) {
+ final LinkedList<SourceIdentifier> sourceIdentifiers = new LinkedList<>(requiredSources);
+ checkState(sourceIdentifiers.remove(sourceIdToRemove),
+ "%s: Trying to remove %s from %s failed", id, sourceIdToRemove, requiredSources);
return sourceIdentifiers;
}
continue;
}
- final String rev = getNullableRev(identifier);
- if (rev == null) {
- if (qname.getRevision() == null) {
- return qname;
- }
- } else if (qname.getFormattedRevision().equals(rev)) {
+ if (identifier.getRevision().equals(qname.getRevision())) {
return qname;
}
}
// this capability will be removed from required sources and not reported as unresolved-capability
return null;
}
-
- private String getNullableRev(final SourceIdentifier identifier) {
- final String rev = identifier.getRevision();
- return rev == null || SourceIdentifier.NOT_PRESENT_FORMATTED_REVISION.equals(rev) ? null : rev;
- }
}
}
Code Review / netconf.git / blobdiff