*/
package org.opendaylight.netconf.sal.connect.netconf;
-import com.google.common.base.Function;
-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 static org.opendaylight.netconf.sal.connect.netconf.util.NetconfMessageTransformUtil.NETCONF_GET_NODEID;
+
import com.google.common.base.Predicates;
import com.google.common.collect.Collections2;
-import com.google.common.collect.Lists;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
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 java.util.ArrayList;
+import java.util.Arrays;
import java.util.Collection;
-import java.util.Collections;
-import java.util.LinkedList;
+import java.util.HashMap;
+import java.util.HashSet;
import java.util.List;
+import java.util.Map;
+import java.util.Objects;
import java.util.Set;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutorService;
+import java.util.concurrent.ExecutionException;
import java.util.stream.Collectors;
-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.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.mdsal.dom.api.DOMRpcResult;
+import org.opendaylight.mdsal.dom.api.DOMRpcService;
import org.opendaylight.netconf.api.NetconfMessage;
+import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
+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.BaseNetconfSchemas;
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.topology.rev150114.netconf.node.connection.status.available.capabilities.AvailableCapability;
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.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.unavailable.capabilities.UnavailableCapability.FailureReason;
+import org.opendaylight.yangtools.concepts.Registration;
+import org.opendaylight.yangtools.rfc8528.data.api.MountPointContext;
+import org.opendaylight.yangtools.rfc8528.data.util.EmptyMountPointContext;
+import org.opendaylight.yangtools.rfc8528.model.api.SchemaMountConstants;
import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.common.RpcError;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
+import org.opendaylight.yangtools.yang.model.repo.api.EffectiveModelContextFactory;
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;
/**
* This is a mediator between NetconfDeviceCommunicator and NetconfDeviceSalFacade.
*/
-public class NetconfDevice
- implements RemoteDevice<NetconfSessionPreferences, NetconfMessage, NetconfDeviceCommunicator> {
-
+public class NetconfDevice implements RemoteDevice<NetconfDeviceCommunicator> {
private static final Logger LOG = LoggerFactory.getLogger(NetconfDevice.class);
- public static final Function<QName, SourceIdentifier> QNAME_TO_SOURCE_ID_FUNCTION =
- input -> RevisionSourceIdentifier.create(input.getLocalName(),
- Optional.fromNullable(input.getFormattedRevision()));
+ private static final QName RFC8528_SCHEMA_MOUNTS_QNAME = QName.create(
+ SchemaMountConstants.RFC8528_MODULE, "schema-mounts").intern();
+ private static final YangInstanceIdentifier RFC8528_SCHEMA_MOUNTS = YangInstanceIdentifier.create(
+ NodeIdentifier.create(RFC8528_SCHEMA_MOUNTS_QNAME));
protected final RemoteDeviceId id;
- private final boolean reconnectOnSchemasChange;
-
- protected final SchemaContextFactory schemaContextFactory;
- private final RemoteDeviceHandler<NetconfSessionPreferences> salFacade;
- private final ListeningExecutorService processingExecutor;
+ protected final EffectiveModelContextFactory schemaContextFactory;
protected final SchemaSourceRegistry schemaRegistry;
protected final SchemaRepository schemaRepository;
+
+ protected final List<Registration> sourceRegistrations = new ArrayList<>();
+
+ private final RemoteDeviceHandler salFacade;
+ private final ListeningExecutorService processingExecutor;
+ private final DeviceActionFactory deviceActionFactory;
private final NetconfDeviceSchemasResolver stateSchemasResolver;
private final NotificationHandler notificationHandler;
- protected final List<SchemaSourceRegistration<? extends SchemaSourceRepresentation>> sourceRegistrations =
- Lists.newArrayList();
+ private final boolean reconnectOnSchemasChange;
+ private final BaseNetconfSchemas baseSchemas;
+
+ @GuardedBy("this")
+ private boolean connected = false;
// Message transformer is constructed once the schemas are available
- private MessageTransformer<NetconfMessage> messageTransformer;
+ private MessageTransformer 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 BaseNetconfSchemas baseSchemas,
+ final RemoteDeviceId id, final RemoteDeviceHandler salFacade,
+ final ListeningExecutorService globalProcessingExecutor, final boolean reconnectOnSchemasChange) {
+ this(schemaResourcesDTO, baseSchemas, id, salFacade, globalProcessingExecutor, reconnectOnSchemasChange, null);
}
- public NetconfDevice(final SchemaResourcesDTO schemaResourcesDTO, final RemoteDeviceId id,
- final RemoteDeviceHandler<NetconfSessionPreferences> salFacade,
- final ExecutorService globalProcessingExecutor, final boolean reconnectOnSchemasChange) {
+ public NetconfDevice(final SchemaResourcesDTO schemaResourcesDTO, final BaseNetconfSchemas baseSchemas,
+ final RemoteDeviceId id, final RemoteDeviceHandler salFacade,
+ final ListeningExecutorService globalProcessingExecutor, final boolean reconnectOnSchemasChange,
+ final DeviceActionFactory deviceActionFactory) {
+ this.baseSchemas = requireNonNull(baseSchemas);
this.id = id;
this.reconnectOnSchemasChange = reconnectOnSchemasChange;
- this.schemaRegistry = schemaResourcesDTO.getSchemaRegistry();
- this.schemaRepository = schemaResourcesDTO.getSchemaRepository();
- this.schemaContextFactory = schemaResourcesDTO.getSchemaContextFactory();
+ this.deviceActionFactory = deviceActionFactory;
+ schemaRegistry = schemaResourcesDTO.getSchemaRegistry();
+ schemaRepository = schemaResourcesDTO.getSchemaRepository();
+ schemaContextFactory = schemaResourcesDTO.getSchemaContextFactory();
this.salFacade = salFacade;
- this.stateSchemasResolver = schemaResourcesDTO.getStateSchemasResolver();
- this.processingExecutor = MoreExecutors.listeningDecorator(globalProcessingExecutor);
- this.notificationHandler = new NotificationHandler(salFacade, id);
+ stateSchemasResolver = schemaResourcesDTO.getStateSchemasResolver();
+ processingExecutor = requireNonNull(globalProcessingExecutor);
+ notificationHandler = new NotificationHandler(salFacade, id);
}
@Override
// Yang models are being downloaded in this method and it would cause a
// deadlock if we used the netty thread
// http://netty.io/wiki/thread-model.html
+ 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.getEffectiveModelContext(), 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<SchemaResult> futureSchema = Futures.transformAsync(sourceResolverFuture,
+ deviceSources -> assembleSchemaContext(deviceSources, remoteSessionCapabilities), processingExecutor);
- private void setUpSchema(final DeviceSources result) {
- processingExecutor.submit(new SchemaSetup(result, remoteSessionCapabilities, listener));
- }
+ // Potentially acquire mount point list and interpret it
+ final ListenableFuture<NetconfDeviceSchema> futureContext = Futures.transformAsync(futureSchema,
+ result -> Futures.transform(createMountPointContext(result.modelContext(), baseSchema, listener),
+ mount -> new NetconfDeviceSchema(result.capabilities(), mount), processingExecutor),
+ processingExecutor);
+ Futures.addCallback(futureContext, new FutureCallback<>() {
@Override
- public void onFailure(final Throwable throwable) {
- LOG.warn("{}: Unexpected error resolving device sources: {}", id, throwable);
- handleSalInitializationFailure(throwable, listener);
+ public void onSuccess(final NetconfDeviceSchema result) {
+ handleSalInitializationSuccess(result, remoteSessionCapabilities,
+ getDeviceSpecificRpc(result.mountContext(), listener, baseSchema), listener);
}
- };
- Futures.addCallback(sourceResolverFuture, resolvedSourceCallback);
+ @Override
+ public void onFailure(final Throwable cause) {
+ LOG.warn("{}: Unexpected error resolving device sources", id, cause);
+ // FIXME: this causes salFacade to see onDeviceDisconnected() and then onDeviceFailed(), which is quite
+ // weird
+ handleSalInitializationFailure(cause, listener);
+ salFacade.onDeviceFailed(cause);
+ }
+ }, MoreExecutors.directExecutor());
}
private void registerToBaseNetconfStream(final NetconfDeviceRpc deviceRpc,
final NetconfDeviceCommunicator listener) {
- // TODO check whether the model describing create subscription is present in schema
+ // 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),
- 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);
- }
- };
+ final ListenableFuture<DOMRpcResult> rpcResultListenableFuture = deviceRpc.invokeRpc(
+ NetconfMessageTransformUtil.CREATE_SUBSCRIPTION_RPC_QNAME,
+ NetconfMessageTransformUtil.CREATE_SUBSCRIPTION_RPC_CONTENT);
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().getIdentifier().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 false;
+ }
+ return true;
+ });
}
@Override
LOG.warn("Unable to subscribe to base notification stream. Schemas will not be reloaded on the fly",
throwable);
}
- });
+ }, MoreExecutors.directExecutor());
}
private boolean shouldListenOnSchemaChange(final NetconfSessionPreferences remoteSessionCapabilities) {
return remoteSessionCapabilities.isNotificationsSupported() && reconnectOnSchemasChange;
}
- void handleSalInitializationSuccess(final SchemaContext result,
- final NetconfSessionPreferences remoteSessionCapabilities,
- final DOMRpcService deviceRpc) {
- final BaseSchema baseSchema =
- remoteSessionCapabilities.isNotificationsSupported()
- ? BaseSchema.BASE_NETCONF_CTX_WITH_NOTIFICATIONS : BaseSchema.BASE_NETCONF_CTX;
- 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);
-
- LOG.info("{}: Netconf connector initialized successfully", id);
+ private synchronized void handleSalInitializationSuccess(final NetconfDeviceSchema deviceSchema,
+ final NetconfSessionPreferences remoteSessionCapabilities, final DOMRpcService deviceRpc,
+ final RemoteDeviceCommunicator listener) {
+ //NetconfDevice.SchemaSetup can complete after NetconfDeviceCommunicator was closed. In that case do nothing,
+ //since salFacade.onDeviceDisconnected was already called.
+ if (connected) {
+ final var mount = deviceSchema.mountContext();
+ messageTransformer = new NetconfMessageTransformer(mount, true,
+ resolveBaseSchema(remoteSessionCapabilities.isNotificationsSupported()));
+
+ // salFacade.onDeviceConnected has to be called before the notification handler is initialized
+ salFacade.onDeviceConnected(deviceSchema, remoteSessionCapabilities, deviceRpc,
+ deviceActionFactory == null ? null : deviceActionFactory.createDeviceAction(
+ messageTransformer, listener, mount.getEffectiveModelContext()));
+ notificationHandler.onRemoteSchemaUp(messageTransformer);
+
+ LOG.info("{}: Netconf connector initialized successfully", id);
+ } else {
+ LOG.warn("{}: Device communicator was closed before schema setup finished.", id);
+ }
}
- void handleSalInitializationFailure(final Throwable throwable,
- final RemoteDeviceCommunicator<NetconfMessage> listener) {
+ private void handleSalInitializationFailure(final Throwable throwable, final RemoteDeviceCommunicator listener) {
LOG.error("{}: Initialization in sal failed, disconnecting from device", id, throwable);
listener.close();
onRemoteSessionDown();
updateTransformer(null);
}
- private void updateTransformer(final MessageTransformer<NetconfMessage> transformer) {
+ private synchronized void updateTransformer(final MessageTransformer transformer) {
messageTransformer = transformer;
}
- private void addProvidedSourcesToSchemaRegistry(final DeviceSources deviceSources) {
- final SchemaSourceProvider<YangTextSchemaSource> yangProvider = deviceSources.getSourceProvider();
- for (final SourceIdentifier sourceId : deviceSources.getProvidedSources()) {
- sourceRegistrations.add(schemaRegistry.registerSchemaSource(yangProvider,
- PotentialSchemaSource.create(
- sourceId, YangTextSchemaSource.class, PotentialSchemaSource.Costs.REMOTE_IO.getValue())));
+ private synchronized void setConnected(final boolean connected) {
+ this.connected = connected;
+ }
+
+ private ListenableFuture<SchemaResult> assembleSchemaContext(final DeviceSources deviceSources,
+ final NetconfSessionPreferences remoteSessionCapabilities) {
+ LOG.debug("{}: Resolved device sources to {}", id, deviceSources);
+
+ sourceRegistrations.addAll(deviceSources.register(schemaRegistry));
+
+ return new SchemaSetup(deviceSources, remoteSessionCapabilities).startResolution();
+ }
+
+ private ListenableFuture<@NonNull MountPointContext> createMountPointContext(
+ final EffectiveModelContext schemaContext, final BaseSchema baseSchema,
+ final NetconfDeviceCommunicator listener) {
+ final MountPointContext emptyContext = new EmptyMountPointContext(schemaContext);
+ if (schemaContext.findModule(SchemaMountConstants.RFC8528_MODULE).isEmpty()) {
+ return Futures.immediateFuture(emptyContext);
+ }
+
+ // Create a temporary RPC invoker and acquire the mount point tree
+ LOG.debug("{}: Acquiring available mount points", id);
+ final NetconfDeviceRpc deviceRpc = new NetconfDeviceRpc(schemaContext, listener,
+ new NetconfMessageTransformer(emptyContext, false, baseSchema));
+
+ return Futures.transform(deviceRpc.invokeRpc(NetconfMessageTransformUtil.NETCONF_GET_QNAME,
+ Builders.containerBuilder().withNodeIdentifier(NETCONF_GET_NODEID)
+ .withChild(NetconfMessageTransformUtil.toFilterStructure(RFC8528_SCHEMA_MOUNTS, schemaContext))
+ .build()), rpcResult -> processSchemaMounts(rpcResult, emptyContext), MoreExecutors.directExecutor());
+ }
+
+ private MountPointContext processSchemaMounts(final DOMRpcResult rpcResult, final MountPointContext emptyContext) {
+ final Collection<? extends RpcError> errors = rpcResult.getErrors();
+ if (!errors.isEmpty()) {
+ LOG.warn("{}: Schema-mounts acquisition resulted in errors {}", id, errors);
}
+ final NormalizedNode schemaMounts = rpcResult.getResult();
+ if (schemaMounts == null) {
+ LOG.debug("{}: device does not define any schema mounts", id);
+ return emptyContext;
+ }
+ if (!(schemaMounts instanceof ContainerNode)) {
+ LOG.warn("{}: ignoring non-container schema mounts {}", id, schemaMounts);
+ return emptyContext;
+ }
+
+ return DeviceMountPointContext.create(emptyContext, (ContainerNode) schemaMounts);
}
@Override
public void onRemoteSessionDown() {
+ setConnected(false);
notificationHandler.onRemoteSchemaDown();
salFacade.onDeviceDisconnected();
- for (final SchemaSourceRegistration<? extends SchemaSourceRepresentation> sourceRegistration
- : sourceRegistrations) {
- sourceRegistration.close();
- }
+ sourceRegistrations.forEach(Registration::close);
+ sourceRegistrations.clear();
resetMessageTransformer();
}
@Override
public void onRemoteSessionFailed(final Throwable throwable) {
+ setConnected(false);
salFacade.onDeviceFailed(throwable);
}
notificationHandler.handleNotification(notification);
}
+ private BaseSchema resolveBaseSchema(final boolean notificationSupport) {
+ return notificationSupport ? baseSchemas.getBaseSchemaWithNotifications() : baseSchemas.getBaseSchema();
+ }
+
+ protected NetconfDeviceRpc getDeviceSpecificRpc(final MountPointContext result,
+ final RemoteDeviceCommunicator listener, final BaseSchema schema) {
+ return new NetconfDeviceRpc(result.getEffectiveModelContext(), listener,
+ new NetconfMessageTransformer(result, true, schema));
+ }
+
/**
* Just a transfer object containing schema related dependencies. Injected in constructor.
*/
public static class SchemaResourcesDTO {
private final SchemaSourceRegistry schemaRegistry;
private final SchemaRepository schemaRepository;
- private final SchemaContextFactory schemaContextFactory;
+ private final EffectiveModelContextFactory schemaContextFactory;
private final NetconfDeviceSchemasResolver stateSchemasResolver;
public SchemaResourcesDTO(final SchemaSourceRegistry schemaRegistry,
final SchemaRepository schemaRepository,
- final SchemaContextFactory schemaContextFactory,
+ final EffectiveModelContextFactory 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);
+ stateSchemasResolver = requireNonNull(deviceSchemasResolver);
}
public SchemaSourceRegistry getSchemaRegistry() {
return schemaRepository;
}
- public SchemaContextFactory getSchemaContextFactory() {
+ public EffectiveModelContextFactory getSchemaContextFactory() {
return schemaContextFactory;
}
}
/**
- * Schema building callable.
+ * A dedicated exception to indicate when we fail to setup an {@link EffectiveModelContext}.
*/
- private static class DeviceSourcesResolver implements Callable<DeviceSources> {
-
- private final NetconfDeviceRpc deviceRpc;
- private final NetconfSessionPreferences remoteSessionCapabilities;
- private final RemoteDeviceId id;
- private final NetconfDeviceSchemasResolver stateSchemasResolver;
+ public static final class EmptySchemaContextException extends Exception {
+ private static final long serialVersionUID = 1L;
- 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);
+ public EmptySchemaContextException(final String message) {
+ super(message);
}
}
/**
- * Contains RequiredSources - sources from capabilities.
+ * {@link NetconfDeviceCapabilities} and {@link EffectiveModelContext}.
*/
- 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, QNAME_TO_SOURCE_ID_FUNCTION);
- }
-
- public Collection<SourceIdentifier> getProvidedSources() {
- return Collections2.transform(providedSources, QNAME_TO_SOURCE_ID_FUNCTION);
- }
+ private record SchemaResult(
+ @NonNull NetconfDeviceCapabilities capabilities,
+ @NonNull EffectiveModelContext modelContext) {
- public SchemaSourceProvider<YangTextSchemaSource> getSourceProvider() {
- return sourceProvider;
+ SchemaResult {
+ requireNonNull(capabilities);
+ requireNonNull(modelContext);
}
}
/**
* 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<EffectiveModelContext> {
+ private final SettableFuture<SchemaResult> resultFuture = SettableFuture.create();
+
+ private final Set<AvailableCapability> nonModuleBasedCapabilities = new HashSet<>();
+ private final Map<QName, FailureReason> unresolvedCapabilites = new HashMap<>();
+ private final Set<AvailableCapability> resolvedCapabilities = new HashSet<>();
+
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() {
+ // If device supports notifications and does not contain necessary modules, add them automatically
+ if (remoteSessionCapabilities.containsNonModuleCapability(
+ XmlNetconfConstants.URN_IETF_PARAMS_NETCONF_CAPABILITY_NOTIFICATION_1_0)) {
+ deviceSources.getRequiredSourcesQName().addAll(
+ Arrays.asList(
+ org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.notification._1._0.rev080714
+ .$YangModuleInfoImpl.getInstance().getName(),
+ org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715
+ .$YangModuleInfoImpl.getInstance().getName()
+ )
+ );
+ }
- final Collection<SourceIdentifier> requiredSources = deviceSources.getRequiredSources();
+ requiredSources = deviceSources.getRequiredSources();
final Collection<SourceIdentifier> missingSources = filterMissingSources(requiredSources);
- capabilities.addUnresolvedCapabilities(getQNameFromSourceIdentifiers(missingSources),
- UnavailableCapability.FailureReason.MissingSource);
-
+ addUnresolvedCapabilities(getQNameFromSourceIdentifiers(missingSources),
+ UnavailableCapability.FailureReason.MissingSource);
requiredSources.removeAll(missingSources);
- setUpSchema(requiredSources);
}
- private Collection<SourceIdentifier> filterMissingSources(final Collection<SourceIdentifier> requiredSources) {
+ ListenableFuture<SchemaResult> 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 EffectiveModelContext result) {
+ LOG.debug("{}: Schema context built successfully from {}", id, requiredSources);
+
+ final Collection<QName> filteredQNames = Sets.difference(deviceSources.getRequiredSourcesQName(),
+ unresolvedCapabilites.keySet());
+ resolvedCapabilities.addAll(filteredQNames.stream()
+ .map(capability -> new AvailableCapabilityBuilder()
+ .setCapability(capability.toString())
+ .setCapabilityOrigin(remoteSessionCapabilities.capabilityOrigin(capability))
+ .build())
+ .collect(Collectors.toList()));
+
+ nonModuleBasedCapabilities.addAll(remoteSessionCapabilities.getNonModuleCaps().stream()
+ .map(capability -> new AvailableCapabilityBuilder()
+ .setCapability(capability)
+ .setCapabilityOrigin(remoteSessionCapabilities.capabilityOrigin(capability))
+ .build())
+ .collect(Collectors.toList()));
+
+
+ resultFuture.set(new SchemaResult(new NetconfDeviceCapabilities(ImmutableMap.copyOf(unresolvedCapabilites),
+ ImmutableSet.copyOf(resolvedCapabilities), ImmutableSet.copyOf(nonModuleBasedCapabilities)), 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.createEffectiveModelContext(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 List<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 Throwable t) {
- if (t instanceof MissingSchemaSourceException) {
- requiredSources =
- handleMissingSchemaSourceException(requiredSources, (MissingSchemaSourceException) t);
- } else if (t instanceof SchemaResolutionException) {
- // 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 (t.getCause() instanceof MissingSchemaSourceException) {
- requiredSources = handleMissingSchemaSourceException(
- requiredSources, (MissingSchemaSourceException) t.getCause());
- continue;
- }
- requiredSources =
- handleSchemaResolutionException(requiredSources, (SchemaResolutionException) t);
- } else {
- // unknown error, fail
- handleSalInitializationFailure(t, listener);
- return;
- }
+ schemaRepository.getSchemaSource(sourceIdentifier, YangTextSchemaSource.class).get();
+ return false;
+ } catch (InterruptedException | ExecutionException e) {
+ return true;
}
+ }).collect(Collectors.toList());
+ }
+
+ private void addUnresolvedCapabilities(final Collection<QName> capabilities, final FailureReason reason) {
+ for (QName s : capabilities) {
+ unresolvedCapabilites.put(s, reason);
}
- // No more sources, fail
- final IllegalStateException cause = new IllegalStateException(id + ": No more sources for schema context");
- handleSalInitializationFailure(cause, listener);
- salFacade.onDeviceFailed(cause);
}
- private Collection<SourceIdentifier> handleMissingSchemaSourceException(
- final Collection<SourceIdentifier> requiredSources, final MissingSchemaSourceException exception) {
+ private List<SourceIdentifier> handleMissingSchemaSourceException(
+ 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);
- final Collection<QName> qNameOfMissingSource =
- getQNameFromSourceIdentifiers(Sets.newHashSet(missingSource));
+ id, missingSource, exception);
+ final var qNameOfMissingSource = getQNameFromSourceIdentifiers(Sets.newHashSet(missingSource));
if (!qNameOfMissingSource.isEmpty()) {
- capabilities.addUnresolvedCapabilities(
- qNameOfMissingSource, UnavailableCapability.FailureReason.MissingSource);
+ 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);
+ addUnresolvedCapabilities(getQNameFromSourceIdentifiers(List.of(failedSourceId)),
+ UnavailableCapability.FailureReason.UnableToResolve);
+ return stripUnavailableSource(resolutionException.getFailedSource());
}
// unsatisfied imports
- final Set<SourceIdentifier> unresolvedSources = resolutionException.getUnsatisfiedImports().keySet();
- capabilities.addUnresolvedCapabilities(
- getQNameFromSourceIdentifiers(unresolvedSources), UnavailableCapability.FailureReason.UnableToResolve);
+ addUnresolvedCapabilities(
+ getQNameFromSourceIdentifiers(resolutionException.getUnsatisfiedImports().keySet()),
+ 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);
- return sourceIdentifiers;
+ private List<SourceIdentifier> stripUnavailableSource(final SourceIdentifier sourceIdToRemove) {
+ final var tmp = new ArrayList<>(requiredSources);
+ checkState(tmp.remove(sourceIdToRemove), "%s: Trying to remove %s from %s failed", id, sourceIdToRemove,
+ requiredSources);
+ return tmp;
}
private Collection<QName> getQNameFromSourceIdentifiers(final Collection<SourceIdentifier> identifiers) {
private QName getQNameFromSourceIdentifier(final SourceIdentifier identifier) {
// Required sources are all required and provided merged in DeviceSourcesResolver
for (final QName qname : deviceSources.getRequiredSourcesQName()) {
- if (!qname.getLocalName().equals(identifier.getName())) {
+ if (!qname.getLocalName().equals(identifier.name().getLocalName())) {
continue;
}
- final String rev = getNullableRev(identifier);
- if (rev == null) {
- if (qname.getRevision() == null) {
- return qname;
- }
- } else if (qname.getFormattedRevision().equals(rev)) {
+ if (Objects.equals(identifier.revision(), qname.getRevision().orElse(null))) {
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;
- }
}
}