Remove RestconfError.ErrorType
[netconf.git] / restconf / restconf-nb-bierman02 / src / main / java / org / opendaylight / netconf / sal / restconf / impl / RestconfImpl.java
index c9cd06b3d0701227769b304dc94c85336452275a..503fc62b62ca45d1c23a065dc822c2924b247959 100644 (file)
@@ -7,18 +7,22 @@
  */
 package org.opendaylight.netconf.sal.restconf.impl;
 
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
+
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Preconditions;
 import com.google.common.base.Predicates;
 import com.google.common.base.Splitter;
 import com.google.common.base.Strings;
 import com.google.common.base.Throwables;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
-import com.google.common.collect.Maps;
 import com.google.common.util.concurrent.FluentFuture;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.net.URI;
 import java.time.Instant;
 import java.time.format.DateTimeFormatter;
@@ -50,6 +54,7 @@ import javax.ws.rs.core.Response.ResponseBuilder;
 import javax.ws.rs.core.Response.Status;
 import javax.ws.rs.core.UriBuilder;
 import javax.ws.rs.core.UriInfo;
+import org.eclipse.jdt.annotation.NonNull;
 import org.opendaylight.mdsal.common.api.CommitInfo;
 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
 import org.opendaylight.mdsal.common.api.OptimisticLockFailedException;
@@ -58,6 +63,7 @@ import org.opendaylight.mdsal.dom.api.DOMMountPoint;
 import org.opendaylight.mdsal.dom.api.DOMRpcImplementationNotAvailableException;
 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
 import org.opendaylight.mdsal.dom.api.DOMRpcService;
+import org.opendaylight.mdsal.dom.api.DOMSchemaService;
 import org.opendaylight.mdsal.dom.spi.DefaultDOMRpcResult;
 import org.opendaylight.netconf.sal.rest.api.Draft02;
 import org.opendaylight.netconf.sal.rest.api.RestconfService;
@@ -69,16 +75,19 @@ import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
 import org.opendaylight.restconf.common.context.NormalizedNodeContext;
 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
-import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
 import org.opendaylight.restconf.common.patch.PatchContext;
 import org.opendaylight.restconf.common.patch.PatchStatusContext;
 import org.opendaylight.restconf.common.util.DataChangeScope;
+import org.opendaylight.restconf.common.util.OperationsResourceUtils;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DateAndTime;
 import org.opendaylight.yang.gen.v1.urn.sal.restconf.event.subscription.rev140708.NotificationOutputTypeGrouping.NotificationOutputType;
 import org.opendaylight.yangtools.yang.common.Empty;
+import org.opendaylight.yangtools.yang.common.ErrorType;
 import org.opendaylight.yangtools.yang.common.QName;
 import org.opendaylight.yangtools.yang.common.QNameModule;
 import org.opendaylight.yangtools.yang.common.Revision;
+import org.opendaylight.yangtools.yang.common.XMLNamespace;
+import org.opendaylight.yangtools.yang.common.YangConstants;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
@@ -93,17 +102,20 @@ import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.SystemLeafSetNode;
+import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
+import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
+import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
+import org.opendaylight.yangtools.yang.data.api.schema.builder.ListNodeBuilder;
+import org.opendaylight.yangtools.yang.data.api.schema.builder.NormalizedNodeBuilder;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.ModifiedNodeDoesNotExistException;
-import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder;
-import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.SchemaAwareBuilders;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
 import org.opendaylight.yangtools.yang.model.api.FeatureDefinition;
 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
@@ -114,7 +126,6 @@ import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
-import org.opendaylight.yangtools.yang.model.util.SimpleSchemaContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -135,7 +146,8 @@ public final class RestconfImpl implements RestconfService {
 
     private static final LogicalDatastoreType DEFAULT_DATASTORE = LogicalDatastoreType.CONFIGURATION;
 
-    private static final URI NAMESPACE_EVENT_SUBSCRIPTION_AUGMENT = URI.create("urn:sal:restconf:event:subscription");
+    private static final XMLNamespace NAMESPACE_EVENT_SUBSCRIPTION_AUGMENT =
+        XMLNamespace.of("urn:sal:restconf:event:subscription");
 
     private static final String DATASTORE_PARAM_NAME = "datastore";
 
@@ -147,7 +159,7 @@ public final class RestconfImpl implements RestconfService {
 
     private static final String NETCONF_BASE_PAYLOAD_NAME = "data";
 
-    private static final QName NETCONF_BASE_QNAME = QName.create(QNameModule.create(URI.create(NETCONF_BASE)),
+    private static final QName NETCONF_BASE_QNAME = QName.create(QNameModule.create(XMLNamespace.of(NETCONF_BASE)),
         NETCONF_BASE_PAYLOAD_NAME).intern();
 
     private static final QNameModule SAL_REMOTE_AUGMENT = QNameModule.create(NAMESPACE_EVENT_SUBSCRIPTION_AUGMENT,
@@ -195,19 +207,19 @@ public final class RestconfImpl implements RestconfService {
     }
 
     @Override
+    @Deprecated
     public NormalizedNodeContext getModules(final UriInfo uriInfo) {
-        final Set<Module> allModules = this.controllerContext.getAllModules();
-        final MapNode allModuleMap = makeModuleMapNode(allModules);
+        final MapNode allModuleMap = makeModuleMapNode(controllerContext.getAllModules());
 
-        final SchemaContext schemaContext = this.controllerContext.getGlobalSchema();
+        final EffectiveModelContext schemaContext = this.controllerContext.getGlobalSchema();
 
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode modulesSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
                 restconfModule, Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
-        Preconditions.checkState(modulesSchemaNode instanceof ContainerSchemaNode);
+        checkState(modulesSchemaNode instanceof ContainerSchemaNode);
 
         final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> moduleContainerBuilder =
-                Builders.containerBuilder((ContainerSchemaNode) modulesSchemaNode);
+                SchemaAwareBuilders.containerBuilder((ContainerSchemaNode) modulesSchemaNode);
         moduleContainerBuilder.withChild(allModuleMap);
 
         return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, modulesSchemaNode, null, schemaContext),
@@ -218,8 +230,8 @@ public final class RestconfImpl implements RestconfService {
      * Valid only for mount point.
      */
     @Override
+    @Deprecated
     public NormalizedNodeContext getModules(final String identifier, final UriInfo uriInfo) {
-        Preconditions.checkNotNull(identifier);
         if (!identifier.contains(ControllerContext.MOUNT)) {
             final String errMsg = "URI has bad format. If modules behind mount point should be showed,"
                     + " URI has to end with " + ControllerContext.MOUNT;
@@ -230,16 +242,15 @@ public final class RestconfImpl implements RestconfService {
         final InstanceIdentifierContext<?> mountPointIdentifier =
                 this.controllerContext.toMountPointIdentifier(identifier);
         final DOMMountPoint mountPoint = mountPointIdentifier.getMountPoint();
-        final Set<Module> modules = this.controllerContext.getAllModules(mountPoint);
-        final MapNode mountPointModulesMap = makeModuleMapNode(modules);
+        final MapNode mountPointModulesMap = makeModuleMapNode(controllerContext.getAllModules(mountPoint));
 
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode modulesSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
                 restconfModule, Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
-        Preconditions.checkState(modulesSchemaNode instanceof ContainerSchemaNode);
+        checkState(modulesSchemaNode instanceof ContainerSchemaNode);
 
         final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> moduleContainerBuilder =
-                Builders.containerBuilder((ContainerSchemaNode) modulesSchemaNode);
+                SchemaAwareBuilders.containerBuilder((ContainerSchemaNode) modulesSchemaNode);
         moduleContainerBuilder.withChild(mountPointModulesMap);
 
         return new NormalizedNodeContext(
@@ -249,19 +260,19 @@ public final class RestconfImpl implements RestconfService {
     }
 
     @Override
+    @Deprecated
     public NormalizedNodeContext getModule(final String identifier, final UriInfo uriInfo) {
-        Preconditions.checkNotNull(identifier);
-        final Entry<String, Revision> nameRev = getModuleNameAndRevision(identifier);
+        final Entry<String, Revision> nameRev = getModuleNameAndRevision(requireNonNull(identifier));
         Module module = null;
         DOMMountPoint mountPoint = null;
-        final SchemaContext schemaContext;
+        final EffectiveModelContext schemaContext;
         if (identifier.contains(ControllerContext.MOUNT)) {
             final InstanceIdentifierContext<?> mountPointIdentifier =
                     this.controllerContext.toMountPointIdentifier(identifier);
             mountPoint = mountPointIdentifier.getMountPoint();
             module = this.controllerContext.findModuleByNameAndRevision(mountPoint, nameRev.getKey(),
                 nameRev.getValue());
-            schemaContext = mountPoint.getSchemaContext();
+            schemaContext = modelContext(mountPoint);
         } else {
             module = this.controllerContext.findModuleByNameAndRevision(nameRev.getKey(), nameRev.getValue());
             schemaContext = this.controllerContext.getGlobalSchema();
@@ -279,7 +290,7 @@ public final class RestconfImpl implements RestconfService {
 
         final DataSchemaNode moduleSchemaNode = this.controllerContext
                 .getRestconfModuleRestConfSchemaNode(restconfModule, Draft02.RestConfModule.MODULE_LIST_SCHEMA_NODE);
-        Preconditions.checkState(moduleSchemaNode instanceof ListSchemaNode);
+        checkState(moduleSchemaNode instanceof ListSchemaNode);
 
         return new NormalizedNodeContext(
                 new InstanceIdentifierContext<>(null, moduleSchemaNode, mountPoint, schemaContext), moduleMap,
@@ -287,16 +298,17 @@ public final class RestconfImpl implements RestconfService {
     }
 
     @Override
+    @Deprecated
     public NormalizedNodeContext getAvailableStreams(final UriInfo uriInfo) {
-        final SchemaContext schemaContext = this.controllerContext.getGlobalSchema();
+        final EffectiveModelContext schemaContext = this.controllerContext.getGlobalSchema();
         final Set<String> availableStreams = Notificator.getStreamNames();
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode streamSchemaNode = this.controllerContext
                 .getRestconfModuleRestConfSchemaNode(restconfModule, Draft02.RestConfModule.STREAM_LIST_SCHEMA_NODE);
-        Preconditions.checkState(streamSchemaNode instanceof ListSchemaNode);
+        checkState(streamSchemaNode instanceof ListSchemaNode);
 
-        final CollectionNodeBuilder<MapEntryNode, MapNode> listStreamsBuilder =
-                Builders.mapBuilder((ListSchemaNode) streamSchemaNode);
+        final CollectionNodeBuilder<MapEntryNode, SystemMapNode> listStreamsBuilder =
+                SchemaAwareBuilders.mapBuilder((ListSchemaNode) streamSchemaNode);
 
         for (final String streamName : availableStreams) {
             listStreamsBuilder.withChild(toStreamEntryNode(streamName, streamSchemaNode));
@@ -304,10 +316,10 @@ public final class RestconfImpl implements RestconfService {
 
         final DataSchemaNode streamsContainerSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
                 restconfModule, Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE);
-        Preconditions.checkState(streamsContainerSchemaNode instanceof ContainerSchemaNode);
+        checkState(streamsContainerSchemaNode instanceof ContainerSchemaNode);
 
         final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> streamsContainerBuilder =
-                Builders.containerBuilder((ContainerSchemaNode) streamsContainerSchemaNode);
+                SchemaAwareBuilders.containerBuilder((ContainerSchemaNode) streamsContainerSchemaNode);
         streamsContainerBuilder.withChild(listStreamsBuilder.build());
 
         return new NormalizedNodeContext(
@@ -316,75 +328,25 @@ public final class RestconfImpl implements RestconfService {
     }
 
     @Override
+    @Deprecated
     public NormalizedNodeContext getOperations(final UriInfo uriInfo) {
-        final Set<Module> allModules = this.controllerContext.getAllModules();
-        return operationsFromModulesToNormalizedContext(allModules, null);
+        return OperationsResourceUtils.contextForModelContext(controllerContext.getGlobalSchema(), null);
     }
 
     @Override
+    @Deprecated
     public NormalizedNodeContext getOperations(final String identifier, final UriInfo uriInfo) {
-        Set<Module> modules = null;
-        DOMMountPoint mountPoint = null;
-        if (identifier.contains(ControllerContext.MOUNT)) {
-            final InstanceIdentifierContext<?> mountPointIdentifier =
-                    this.controllerContext.toMountPointIdentifier(identifier);
-            mountPoint = mountPointIdentifier.getMountPoint();
-            modules = this.controllerContext.getAllModules(mountPoint);
-
-        } else {
+        if (!identifier.contains(ControllerContext.MOUNT)) {
             final String errMsg = "URI has bad format. If operations behind mount point should be showed, URI has to "
                     + " end with " +  ControllerContext.MOUNT;
             LOG.debug("{} for {}", errMsg, identifier);
             throw new RestconfDocumentedException(errMsg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
         }
 
-        return operationsFromModulesToNormalizedContext(modules, mountPoint);
-    }
-
-    /**
-     * Special case only for GET restconf/operations use (since moment of
-     * pre-Beryllium Yang parser and Yang model API removal). The method is
-     * creating fake schema context with fake module and fake data by use own
-     * implementations of schema nodes and module.
-     *
-     * @param modules
-     *            set of modules for get RPCs from every module
-     * @param mountPoint
-     *            mount point, if in use otherwise null
-     * @return {@link NormalizedNodeContext}
-     */
-    private static NormalizedNodeContext operationsFromModulesToNormalizedContext(final Set<Module> modules,
-            final DOMMountPoint mountPoint) {
-
-        final Collection<Module> neededModules = new ArrayList<>(modules.size());
-        final ArrayList<LeafSchemaNode> fakeRpcSchema = new ArrayList<>();
-
-        for (final Module m : modules) {
-            final Set<RpcDefinition> rpcs = m.getRpcs();
-            if (!rpcs.isEmpty()) {
-                neededModules.add(m);
-
-                fakeRpcSchema.ensureCapacity(fakeRpcSchema.size() + rpcs.size());
-                rpcs.forEach(rpc -> fakeRpcSchema.add(new FakeLeafSchemaNode(rpc.getQName())));
-            }
-        }
-
-        final ContainerSchemaNode fakeCont = new FakeContainerSchemaNode(fakeRpcSchema);
-        final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> containerBuilder =
-                Builders.containerBuilder(fakeCont);
-
-        for (final LeafSchemaNode leaf : fakeRpcSchema) {
-            containerBuilder.withChild(Builders.leafBuilder(leaf).withValue(Empty.getInstance()).build());
-        }
-
-        final Collection<Module> fakeModules = new ArrayList<>(neededModules.size() + 1);
-        neededModules.forEach(imp -> fakeModules.add(new FakeImportedModule(imp)));
-        fakeModules.add(new FakeRestconfModule(neededModules, fakeCont));
-
-        final SchemaContext fakeSchemaCtx = SimpleSchemaContext.forModules(ImmutableSet.copyOf(fakeModules));
-        final InstanceIdentifierContext<ContainerSchemaNode> instanceIdentifierContext =
-                new InstanceIdentifierContext<>(null, fakeCont, mountPoint, fakeSchemaCtx);
-        return new NormalizedNodeContext(instanceIdentifierContext, containerBuilder.build());
+        final InstanceIdentifierContext<?> mountPointIdentifier =
+                this.controllerContext.toMountPointIdentifier(identifier);
+        final DOMMountPoint mountPoint = mountPointIdentifier.getMountPoint();
+        return OperationsResourceUtils.contextForModelContext(modelContext(mountPoint), mountPoint);
     }
 
     private Module getRestconfModule() {
@@ -438,21 +400,22 @@ public final class RestconfImpl implements RestconfService {
             return invokeRpc(identifier, uriInfo);
         }
 
-        final SchemaPath type = payload.getInstanceIdentifierContext().getSchemaNode().getPath();
-        final URI namespace = payload.getInstanceIdentifierContext().getSchemaNode().getQName().getNamespace();
-        final ListenableFuture<DOMRpcResult> response;
+        final SchemaNode schema = payload.getInstanceIdentifierContext().getSchemaNode();
+        final ListenableFuture<? extends DOMRpcResult> response;
         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
-        final SchemaContext schemaContext;
+        final NormalizedNode input =  nonnullInput(schema, payload.getData());
+        final EffectiveModelContext schemaContext;
 
         if (mountPoint != null) {
             final Optional<DOMRpcService> mountRpcServices = mountPoint.getService(DOMRpcService.class);
-            if (!mountRpcServices.isPresent()) {
+            if (mountRpcServices.isEmpty()) {
                 LOG.debug("Error: Rpc service is missing.");
                 throw new RestconfDocumentedException("Rpc service is missing.");
             }
-            schemaContext = mountPoint.getSchemaContext();
-            response = mountRpcServices.get().invokeRpc(type, payload.getData());
+            schemaContext = modelContext(mountPoint);
+            response = mountRpcServices.get().invokeRpc(schema.getQName(), input);
         } else {
+            final XMLNamespace namespace = schema.getQName().getNamespace();
             if (namespace.toString().equals(SAL_REMOTE_NAMESPACE)) {
                 if (identifier.contains(CREATE_DATA_SUBSCR)) {
                     response = invokeSalRemoteRpcSubscribeRPC(payload);
@@ -464,7 +427,7 @@ public final class RestconfImpl implements RestconfService {
                     throw new RestconfDocumentedException(msg, ErrorType.RPC, ErrorTag.OPERATION_NOT_SUPPORTED);
                 }
             } else {
-                response = this.broker.invokeRpc(type, payload.getData());
+                response = this.broker.invokeRpc(schema.getQName(), input);
             }
             schemaContext = this.controllerContext.getGlobalSchema();
         }
@@ -472,7 +435,7 @@ public final class RestconfImpl implements RestconfService {
         final DOMRpcResult result = checkRpcResponse(response);
 
         RpcDefinition resultNodeSchema = null;
-        final NormalizedNode<?, ?> resultData;
+        final NormalizedNode resultData;
         if (result != null && result.getResult() != null) {
             resultData = result.getResult();
             resultNodeSchema = (RpcDefinition) payload.getInstanceIdentifierContext().getSchemaNode();
@@ -480,7 +443,7 @@ public final class RestconfImpl implements RestconfService {
             resultData = null;
         }
 
-        if (resultData != null && ((ContainerNode) resultData).getValue().isEmpty()) {
+        if (resultData != null && ((ContainerNode) resultData).isEmpty()) {
             throw new WebApplicationException(Response.Status.NO_CONTENT);
         } else {
             return new NormalizedNodeContext(
@@ -489,38 +452,39 @@ public final class RestconfImpl implements RestconfService {
         }
     }
 
+    @SuppressFBWarnings(value = "NP_LOAD_OF_KNOWN_NULL_VALUE",
+            justification = "Looks like a false positive, see below FIXME")
     private NormalizedNodeContext invokeRpc(final String identifier, final UriInfo uriInfo) {
-
-        DOMMountPoint mountPoint = null;
+        final DOMMountPoint mountPoint;
         final String identifierEncoded;
-        final SchemaContext schemaContext;
+        final EffectiveModelContext schemaContext;
         if (identifier.contains(ControllerContext.MOUNT)) {
             // mounted RPC call - look up mount instance.
             final InstanceIdentifierContext<?> mountPointId = this.controllerContext.toMountPointIdentifier(identifier);
             mountPoint = mountPointId.getMountPoint();
-            schemaContext = mountPoint.getSchemaContext();
+            schemaContext = modelContext(mountPoint);
             final int startOfRemoteRpcName =
                     identifier.lastIndexOf(ControllerContext.MOUNT) + ControllerContext.MOUNT.length() + 1;
             final String remoteRpcName = identifier.substring(startOfRemoteRpcName);
             identifierEncoded = remoteRpcName;
 
-        } else if (identifier.indexOf('/') != CHAR_NOT_FOUND) {
+        } else if (identifier.indexOf('/') == CHAR_NOT_FOUND) {
+            identifierEncoded = identifier;
+            mountPoint = null;
+            schemaContext = this.controllerContext.getGlobalSchema();
+        } else {
             LOG.debug("Identifier {} cannot contain slash character (/).", identifier);
             throw new RestconfDocumentedException(String.format("Identifier %n%s%ncan\'t contain slash character (/).%n"
                     + "If slash is part of identifier name then use %%2F placeholder.", identifier), ErrorType.PROTOCOL,
                 ErrorTag.INVALID_VALUE);
-        } else {
-            identifierEncoded = identifier;
-            schemaContext = this.controllerContext.getGlobalSchema();
         }
 
-        final String identifierDecoded = this.controllerContext.urlPathArgDecode(identifierEncoded);
-
-        RpcDefinition rpc;
+        final String identifierDecoded = ControllerContext.urlPathArgDecode(identifierEncoded);
+        final RpcDefinition rpc;
         if (mountPoint == null) {
             rpc = this.controllerContext.getRpcDefinition(identifierDecoded);
         } else {
-            rpc = findRpc(mountPoint.getSchemaContext(), identifierDecoded);
+            rpc = findRpc(modelContext(mountPoint), identifierDecoded);
         }
 
         if (rpc == null) {
@@ -534,29 +498,44 @@ public final class RestconfImpl implements RestconfService {
                     + " with an input section defined", ErrorType.RPC, ErrorTag.MISSING_ELEMENT);
         }
 
-        final ListenableFuture<DOMRpcResult> response;
+        final ContainerNode input = defaultInput(rpc.getQName());
+        final ListenableFuture<? extends DOMRpcResult> response;
         if (mountPoint != null) {
             final Optional<DOMRpcService> mountRpcServices = mountPoint.getService(DOMRpcService.class);
-            if (!mountRpcServices.isPresent()) {
+            if (mountRpcServices.isEmpty()) {
                 throw new RestconfDocumentedException("Rpc service is missing.");
             }
-            response = mountRpcServices.get().invokeRpc(rpc.getPath(), null);
+            response = mountRpcServices.get().invokeRpc(rpc.getQName(), input);
         } else {
-            response = this.broker.invokeRpc(rpc.getPath(), null);
+            response = this.broker.invokeRpc(rpc.getQName(), input);
         }
 
-        final DOMRpcResult result = checkRpcResponse(response);
-
-        if (result.getResult() != null && ((ContainerNode) result.getResult()).getValue().isEmpty()) {
+        final NormalizedNode result = checkRpcResponse(response).getResult();
+        if (result != null && ((ContainerNode) result).isEmpty()) {
             throw new WebApplicationException(Response.Status.NO_CONTENT);
-        } else {
-            return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, rpc, mountPoint, schemaContext),
-                    result.getResult(), QueryParametersParser.parseWriterParameters(uriInfo));
         }
+
+        // FIXME: in reference to the above @SupressFBWarnings: "mountPoint" reference here trips up SpotBugs, as it
+        //        thinks it can only ever be null. Except it can very much be non-null. The core problem is the horrible
+        //        structure of this code where we have a sh*tload of checks for mountpoint above and all over the
+        //        codebase where all that difference should have been properly encapsulated.
+        //
+        //        This is legacy code, so if anybody cares to do that refactor, feel free to contribute, but I am not
+        //        doing that work.
+        return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, rpc, mountPoint, schemaContext), result,
+            QueryParametersParser.parseWriterParameters(uriInfo));
+    }
+
+    private static @NonNull NormalizedNode nonnullInput(final SchemaNode rpc, final NormalizedNode input) {
+        return input != null ? input : defaultInput(rpc.getQName());
+    }
+
+    private static @NonNull ContainerNode defaultInput(final QName rpcName) {
+        return ImmutableNodes.containerNode(YangConstants.operationInputQName(rpcName.getModule()));
     }
 
     @SuppressWarnings("checkstyle:avoidHidingCauseException")
-    private static DOMRpcResult checkRpcResponse(final ListenableFuture<DOMRpcResult> response) {
+    private static DOMRpcResult checkRpcResponse(final ListenableFuture<? extends DOMRpcResult> response) {
         if (response == null) {
             return null;
         }
@@ -574,24 +553,22 @@ public final class RestconfImpl implements RestconfService {
         } catch (final ExecutionException e) {
             LOG.debug("Execution RpcError: ", e);
             Throwable cause = e.getCause();
-            if (cause != null) {
-                while (cause.getCause() != null) {
-                    cause = cause.getCause();
-                }
-
-                if (cause instanceof IllegalArgumentException) {
-                    throw new RestconfDocumentedException(cause.getMessage(), ErrorType.PROTOCOL,
-                            ErrorTag.INVALID_VALUE);
-                } else if (cause instanceof DOMRpcImplementationNotAvailableException) {
-                    throw new RestconfDocumentedException(cause.getMessage(), ErrorType.APPLICATION,
-                            ErrorTag.OPERATION_NOT_SUPPORTED);
-                }
-                throw new RestconfDocumentedException("The operation encountered an unexpected error while executing.",
-                        cause);
-            } else {
+            if (cause == null) {
                 throw new RestconfDocumentedException("The operation encountered an unexpected error while executing.",
-                        e);
+                    e);
+            }
+            while (cause.getCause() != null) {
+                cause = cause.getCause();
+            }
+
+            if (cause instanceof IllegalArgumentException) {
+                throw new RestconfDocumentedException(cause.getMessage(), ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
+            } else if (cause instanceof DOMRpcImplementationNotAvailableException) {
+                throw new RestconfDocumentedException(cause.getMessage(), ErrorType.APPLICATION,
+                    ErrorTag.OPERATION_NOT_SUPPORTED);
             }
+            throw new RestconfDocumentedException("The operation encountered an unexpected error while executing.",
+                cause);
         } catch (final CancellationException e) {
             final String errMsg = "The operation was cancelled while executing.";
             LOG.debug("Cancel RpcExecution: {}", errMsg, e);
@@ -612,10 +589,9 @@ public final class RestconfImpl implements RestconfService {
     private ListenableFuture<DOMRpcResult> invokeSalRemoteRpcSubscribeRPC(final NormalizedNodeContext payload) {
         final ContainerNode value = (ContainerNode) payload.getData();
         final QName rpcQName = payload.getInstanceIdentifierContext().getSchemaNode().getQName();
-        final Optional<DataContainerChild<? extends PathArgument, ?>> path = value.getChild(
-            new NodeIdentifier(QName.create(payload.getInstanceIdentifierContext().getSchemaNode().getQName(),
-                "path")));
-        final Object pathValue = path.isPresent() ? path.get().getValue() : null;
+        final Optional<DataContainerChild> path =
+            value.findChildByArg(new NodeIdentifier(QName.create(rpcQName, "path")));
+        final Object pathValue = path.isPresent() ? path.get().body() : null;
 
         if (!(pathValue instanceof YangInstanceIdentifier)) {
             LOG.debug("Instance identifier {} was not normalized correctly", rpcQName);
@@ -717,7 +693,7 @@ public final class RestconfImpl implements RestconfService {
 
         final InstanceIdentifierContext<?> iiWithData = this.controllerContext.toInstanceIdentifier(identifier);
         final DOMMountPoint mountPoint = iiWithData.getMountPoint();
-        NormalizedNode<?, ?> data = null;
+        NormalizedNode data = null;
         final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
         if (mountPoint != null) {
             data = this.broker.readConfigurationData(mountPoint, normalizedII, withDefa);
@@ -735,7 +711,7 @@ public final class RestconfImpl implements RestconfService {
     public NormalizedNodeContext readOperationalData(final String identifier, final UriInfo uriInfo) {
         final InstanceIdentifierContext<?> iiWithData = this.controllerContext.toInstanceIdentifier(identifier);
         final DOMMountPoint mountPoint = iiWithData.getMountPoint();
-        NormalizedNode<?, ?> data = null;
+        NormalizedNode data = null;
         final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
         if (mountPoint != null) {
             data = this.broker.readOperationalData(mountPoint, normalizedII);
@@ -794,7 +770,7 @@ public final class RestconfImpl implements RestconfService {
                     "Point parameter can be used only with 'after' or 'before' values of Insert parameter.");
         }
 
-        Preconditions.checkNotNull(identifier);
+        requireNonNull(identifier);
 
         final InstanceIdentifierContext<?> iiWithData = payload.getInstanceIdentifierContext();
 
@@ -862,12 +838,12 @@ public final class RestconfImpl implements RestconfService {
     private static void validateTopLevelNodeName(final NormalizedNodeContext node,
             final YangInstanceIdentifier identifier) {
 
-        final String payloadName = node.getData().getNodeType().getLocalName();
+        final String payloadName = node.getData().getIdentifier().getNodeType().getLocalName();
 
         // no arguments
         if (identifier.isEmpty()) {
             // no "data" payload
-            if (!node.getData().getNodeType().equals(NETCONF_BASE_QNAME)) {
+            if (!node.getData().getIdentifier().getNodeType().equals(NETCONF_BASE_QNAME)) {
                 throw new RestconfDocumentedException("Instance identifier has to contain at least one path argument",
                         ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
             }
@@ -891,16 +867,15 @@ public final class RestconfImpl implements RestconfService {
      *
      */
     private static void validateListKeysEqualityInPayloadAndUri(final NormalizedNodeContext payload) {
-        Preconditions.checkArgument(payload != null);
+        checkArgument(payload != null);
         final InstanceIdentifierContext<?> iiWithData = payload.getInstanceIdentifierContext();
         final PathArgument lastPathArgument = iiWithData.getInstanceIdentifier().getLastPathArgument();
         final SchemaNode schemaNode = iiWithData.getSchemaNode();
-        final NormalizedNode<?, ?> data = payload.getData();
+        final NormalizedNode data = payload.getData();
         if (schemaNode instanceof ListSchemaNode) {
             final List<QName> keyDefinitions = ((ListSchemaNode) schemaNode).getKeyDefinition();
             if (lastPathArgument instanceof NodeIdentifierWithPredicates && data instanceof MapEntryNode) {
-                final Map<QName, Object> uriKeyValues =
-                        ((NodeIdentifierWithPredicates) lastPathArgument).getKeyValues();
+                final Map<QName, Object> uriKeyValues = ((NodeIdentifierWithPredicates) lastPathArgument).asMap();
                 isEqualUriAndPayloadKeyValues(uriKeyValues, (MapEntryNode) data, keyDefinitions);
             }
         }
@@ -910,14 +885,14 @@ public final class RestconfImpl implements RestconfService {
     public static void isEqualUriAndPayloadKeyValues(final Map<QName, Object> uriKeyValues, final MapEntryNode payload,
             final List<QName> keyDefinitions) {
 
-        final Map<QName, Object> mutableCopyUriKeyValues = Maps.newHashMap(uriKeyValues);
+        final Map<QName, Object> mutableCopyUriKeyValues = new HashMap<>(uriKeyValues);
         for (final QName keyDefinition : keyDefinitions) {
             final Object uriKeyValue = RestconfDocumentedException.throwIfNull(
                 // should be caught during parsing URI to InstanceIdentifier
                 mutableCopyUriKeyValues.remove(keyDefinition), ErrorType.PROTOCOL, ErrorTag.DATA_MISSING,
                 "Missing key %s in URI.", keyDefinition);
 
-            final Object dataKeyValue = payload.getIdentifier().getKeyValues().get(keyDefinition);
+            final Object dataKeyValue = payload.getIdentifier().getValue(keyDefinition);
 
             if (!Objects.deepEquals(uriKeyValue, dataKeyValue)) {
                 final String errMsg = "The value '" + uriKeyValue + "' for key '" + keyDefinition.getLocalName()
@@ -1086,6 +1061,8 @@ public final class RestconfImpl implements RestconfService {
         String filter = null;
         boolean leafNodesOnlyUsed = false;
         boolean leafNodesOnly = false;
+        boolean skipNotificationDataUsed = false;
+        boolean skipNotificationData = false;
 
         for (final Entry<String, List<String>> entry : uriInfo.getQueryParameters().entrySet()) {
             switch (entry.getKey()) {
@@ -1121,6 +1098,15 @@ public final class RestconfImpl implements RestconfService {
                         throw new RestconfDocumentedException("Odl-leaf-nodes-only parameter can be used only once.");
                     }
                     break;
+                case "odl-skip-notification-data":
+                    if (!skipNotificationDataUsed) {
+                        skipNotificationDataUsed = true;
+                        skipNotificationData = Boolean.parseBoolean(entry.getValue().iterator().next());
+                    } else {
+                        throw new RestconfDocumentedException(
+                                "Odl-skip-notification-data parameter can be used only once.");
+                    }
+                    break;
                 default:
                     throw new RestconfDocumentedException("Bad parameter used with notifications: " + entry.getKey());
             }
@@ -1130,7 +1116,7 @@ public final class RestconfImpl implements RestconfService {
         }
         URI response = null;
         if (identifier.contains(DATA_SUBSCR)) {
-            response = dataSubs(identifier, uriInfo, start, stop, filter, leafNodesOnly);
+            response = dataSubs(identifier, uriInfo, start, stop, filter, leafNodesOnly, skipNotificationData);
         } else if (identifier.contains(NOTIFICATION_STREAM)) {
             response = notifStream(identifier, uriInfo, start, stop, filter);
         }
@@ -1175,7 +1161,7 @@ public final class RestconfImpl implements RestconfService {
      */
     private InstanceIdentifierContext<?> prepareIIDSubsStreamOutput() {
         final QName qnameBase = QName.create("subscribe:to:notification", "2016-10-28", "notifi");
-        final SchemaContext schemaCtx = controllerContext.getGlobalSchema();
+        final EffectiveModelContext schemaCtx = controllerContext.getGlobalSchema();
         final DataSchemaNode location = ((ContainerSchemaNode) schemaCtx
                 .findModule(qnameBase.getModule()).orElse(null)
                 .getDataChildByName(qnameBase)).getDataChildByName(QName.create(qnameBase, "location"));
@@ -1216,7 +1202,7 @@ public final class RestconfImpl implements RestconfService {
 
         for (final NotificationListenerAdapter listener : listeners) {
             this.broker.registerToListenNotification(listener);
-            listener.setQueryParams(start, Optional.ofNullable(stop), Optional.ofNullable(filter), false);
+            listener.setQueryParams(start, Optional.ofNullable(stop), Optional.ofNullable(filter), false, false);
         }
 
         final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
@@ -1255,7 +1241,7 @@ public final class RestconfImpl implements RestconfService {
      * @return {@link URI} of location
      */
     private URI dataSubs(final String identifier, final UriInfo uriInfo, final Instant start, final Instant stop,
-            final String filter, final boolean leafNodesOnly) {
+            final String filter, final boolean leafNodesOnly, final boolean skipNotificationData) {
         final String streamName = Notificator.createStreamNameFromUri(identifier);
         if (Strings.isNullOrEmpty(streamName)) {
             throw new RestconfDocumentedException("Stream name is empty.", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
@@ -1266,7 +1252,8 @@ public final class RestconfImpl implements RestconfService {
             throw new RestconfDocumentedException("Stream was not found.", ErrorType.PROTOCOL,
                     ErrorTag.UNKNOWN_ELEMENT);
         }
-        listener.setQueryParams(start, Optional.ofNullable(stop), Optional.ofNullable(filter), leafNodesOnly);
+        listener.setQueryParams(start, Optional.ofNullable(stop), Optional.ofNullable(filter), leafNodesOnly,
+                skipNotificationData);
 
         final Map<String, String> paramToValues = resolveValuesFromUri(identifier);
         final LogicalDatastoreType datastore =
@@ -1335,21 +1322,20 @@ public final class RestconfImpl implements RestconfService {
      */
     private static <T> T parseEnumTypeParameter(final ContainerNode value, final Class<T> classDescriptor,
             final String paramName) {
-        final Optional<DataContainerChild<? extends PathArgument, ?>> optAugNode = value.getChild(
-            SAL_REMOTE_AUG_IDENTIFIER);
-        if (!optAugNode.isPresent()) {
+        final Optional<DataContainerChild> optAugNode = value.findChildByArg(SAL_REMOTE_AUG_IDENTIFIER);
+        if (optAugNode.isEmpty()) {
             return null;
         }
-        final DataContainerChild<? extends PathArgument, ?> augNode = optAugNode.get();
+        final DataContainerChild augNode = optAugNode.get();
         if (!(augNode instanceof AugmentationNode)) {
             return null;
         }
-        final Optional<DataContainerChild<? extends PathArgument, ?>> enumNode = ((AugmentationNode) augNode).getChild(
+        final Optional<DataContainerChild> enumNode = ((AugmentationNode) augNode).findChildByArg(
                 new NodeIdentifier(QName.create(SAL_REMOTE_AUGMENT, paramName)));
-        if (!enumNode.isPresent()) {
+        if (enumNode.isEmpty()) {
             return null;
         }
-        final Object rawValue = enumNode.get().getValue();
+        final Object rawValue = enumNode.get().body();
         if (!(rawValue instanceof String)) {
             return null;
         }
@@ -1395,15 +1381,15 @@ public final class RestconfImpl implements RestconfService {
         return result;
     }
 
-    private MapNode makeModuleMapNode(final Set<Module> modules) {
-        Preconditions.checkNotNull(modules);
+    private MapNode makeModuleMapNode(final Collection<? extends Module> modules) {
+        requireNonNull(modules);
         final Module restconfModule = getRestconfModule();
         final DataSchemaNode moduleSchemaNode = this.controllerContext
                 .getRestconfModuleRestConfSchemaNode(restconfModule, Draft02.RestConfModule.MODULE_LIST_SCHEMA_NODE);
-        Preconditions.checkState(moduleSchemaNode instanceof ListSchemaNode);
+        checkState(moduleSchemaNode instanceof ListSchemaNode);
 
-        final CollectionNodeBuilder<MapEntryNode, MapNode> listModuleBuilder =
-                Builders.mapBuilder((ListSchemaNode) moduleSchemaNode);
+        final CollectionNodeBuilder<MapEntryNode, SystemMapNode> listModuleBuilder =
+                SchemaAwareBuilders.mapBuilder((ListSchemaNode) moduleSchemaNode);
 
         for (final Module module : modules) {
             listModuleBuilder.withChild(toModuleEntryNode(module, moduleSchemaNode));
@@ -1411,45 +1397,45 @@ public final class RestconfImpl implements RestconfService {
         return listModuleBuilder.build();
     }
 
-    private MapEntryNode toModuleEntryNode(final Module module, final DataSchemaNode moduleSchemaNode) {
-        Preconditions.checkArgument(moduleSchemaNode instanceof ListSchemaNode,
+    private static MapEntryNode toModuleEntryNode(final Module module, final DataSchemaNode moduleSchemaNode) {
+        checkArgument(moduleSchemaNode instanceof ListSchemaNode,
                 "moduleSchemaNode has to be of type ListSchemaNode");
         final ListSchemaNode listModuleSchemaNode = (ListSchemaNode) moduleSchemaNode;
         final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> moduleNodeValues =
-                Builders.mapEntryBuilder(listModuleSchemaNode);
+                SchemaAwareBuilders.mapEntryBuilder(listModuleSchemaNode);
 
         List<DataSchemaNode> instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listModuleSchemaNode, "name");
         final DataSchemaNode nameSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(nameSchemaNode instanceof LeafSchemaNode);
-        moduleNodeValues
-                .withChild(Builders.leafBuilder((LeafSchemaNode) nameSchemaNode).withValue(module.getName()).build());
+        checkState(nameSchemaNode instanceof LeafSchemaNode);
+        moduleNodeValues.withChild(
+            SchemaAwareBuilders.leafBuilder((LeafSchemaNode) nameSchemaNode).withValue(module.getName()).build());
 
         final QNameModule qNameModule = module.getQNameModule();
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listModuleSchemaNode, "revision");
         final DataSchemaNode revisionSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(revisionSchemaNode instanceof LeafSchemaNode);
+        checkState(revisionSchemaNode instanceof LeafSchemaNode);
         final Optional<Revision> revision = qNameModule.getRevision();
-        moduleNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) revisionSchemaNode)
+        moduleNodeValues.withChild(SchemaAwareBuilders.leafBuilder((LeafSchemaNode) revisionSchemaNode)
                 .withValue(revision.map(Revision::toString).orElse("")).build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listModuleSchemaNode, "namespace");
         final DataSchemaNode namespaceSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(namespaceSchemaNode instanceof LeafSchemaNode);
-        moduleNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) namespaceSchemaNode)
+        checkState(namespaceSchemaNode instanceof LeafSchemaNode);
+        moduleNodeValues.withChild(SchemaAwareBuilders.leafBuilder((LeafSchemaNode) namespaceSchemaNode)
                 .withValue(qNameModule.getNamespace().toString()).build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listModuleSchemaNode, "feature");
         final DataSchemaNode featureSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(featureSchemaNode instanceof LeafListSchemaNode);
-        final ListNodeBuilder<Object, LeafSetEntryNode<Object>> featuresBuilder =
-                Builders.leafSetBuilder((LeafListSchemaNode) featureSchemaNode);
+        checkState(featureSchemaNode instanceof LeafListSchemaNode);
+        final ListNodeBuilder<Object, SystemLeafSetNode<Object>> featuresBuilder =
+                SchemaAwareBuilders.leafSetBuilder((LeafListSchemaNode) featureSchemaNode);
         for (final FeatureDefinition feature : module.getFeatures()) {
-            featuresBuilder.withChild(Builders.leafSetEntryBuilder((LeafListSchemaNode) featureSchemaNode)
+            featuresBuilder.withChild(SchemaAwareBuilders.leafSetEntryBuilder((LeafListSchemaNode) featureSchemaNode)
                     .withValue(feature.getQName().getLocalName()).build());
         }
         moduleNodeValues.withChild(featuresBuilder.build());
@@ -1458,43 +1444,46 @@ public final class RestconfImpl implements RestconfService {
     }
 
     protected MapEntryNode toStreamEntryNode(final String streamName, final DataSchemaNode streamSchemaNode) {
-        Preconditions.checkArgument(streamSchemaNode instanceof ListSchemaNode,
+        checkArgument(streamSchemaNode instanceof ListSchemaNode,
                 "streamSchemaNode has to be of type ListSchemaNode");
         final ListSchemaNode listStreamSchemaNode = (ListSchemaNode) streamSchemaNode;
         final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> streamNodeValues =
-                Builders.mapEntryBuilder(listStreamSchemaNode);
+                SchemaAwareBuilders.mapEntryBuilder(listStreamSchemaNode);
 
         List<DataSchemaNode> instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listStreamSchemaNode, "name");
         final DataSchemaNode nameSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(nameSchemaNode instanceof LeafSchemaNode);
-        streamNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) nameSchemaNode).withValue(streamName).build());
+        checkState(nameSchemaNode instanceof LeafSchemaNode);
+        streamNodeValues.withChild(
+            SchemaAwareBuilders.leafBuilder((LeafSchemaNode) nameSchemaNode).withValue(streamName).build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listStreamSchemaNode, "description");
         final DataSchemaNode descriptionSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(descriptionSchemaNode instanceof LeafSchemaNode);
-        streamNodeValues.withChild(
-                Builders.leafBuilder((LeafSchemaNode) nameSchemaNode).withValue("DESCRIPTION_PLACEHOLDER").build());
+        checkState(descriptionSchemaNode instanceof LeafSchemaNode);
+        streamNodeValues.withChild(SchemaAwareBuilders.leafBuilder((LeafSchemaNode) nameSchemaNode)
+            .withValue("DESCRIPTION_PLACEHOLDER")
+            .build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listStreamSchemaNode, "replay-support");
         final DataSchemaNode replaySupportSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(replaySupportSchemaNode instanceof LeafSchemaNode);
-        streamNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) replaySupportSchemaNode)
+        checkState(replaySupportSchemaNode instanceof LeafSchemaNode);
+        streamNodeValues.withChild(SchemaAwareBuilders.leafBuilder((LeafSchemaNode) replaySupportSchemaNode)
                 .withValue(Boolean.TRUE).build());
 
         instanceDataChildrenByName =
                 ControllerContext.findInstanceDataChildrenByName(listStreamSchemaNode, "replay-log-creation-time");
         final DataSchemaNode replayLogCreationTimeSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(replayLogCreationTimeSchemaNode instanceof LeafSchemaNode);
+        checkState(replayLogCreationTimeSchemaNode instanceof LeafSchemaNode);
         streamNodeValues.withChild(
-                Builders.leafBuilder((LeafSchemaNode) replayLogCreationTimeSchemaNode).withValue("").build());
+            SchemaAwareBuilders.leafBuilder((LeafSchemaNode) replayLogCreationTimeSchemaNode).withValue("").build());
 
         instanceDataChildrenByName = ControllerContext.findInstanceDataChildrenByName(listStreamSchemaNode, "events");
         final DataSchemaNode eventsSchemaNode = Iterables.getFirst(instanceDataChildrenByName, null);
-        Preconditions.checkState(eventsSchemaNode instanceof LeafSchemaNode);
-        streamNodeValues.withChild(Builders.leafBuilder((LeafSchemaNode) eventsSchemaNode).build());
+        checkState(eventsSchemaNode instanceof LeafSchemaNode);
+        streamNodeValues.withChild(
+            SchemaAwareBuilders.leafBuilder((LeafSchemaNode) eventsSchemaNode).withValue(Empty.getInstance()).build());
 
         return streamNodeValues.build();
     }
@@ -1510,25 +1499,25 @@ public final class RestconfImpl implements RestconfService {
         final ContainerNode data = (ContainerNode) payload.getData();
         LeafSetNode leafSet = null;
         String outputType = "XML";
-        for (final DataContainerChild<? extends PathArgument, ?> dataChild : data.getValue()) {
+        for (final DataContainerChild dataChild : data.body()) {
             if (dataChild instanceof LeafSetNode) {
                 leafSet = (LeafSetNode) dataChild;
             } else if (dataChild instanceof AugmentationNode) {
-                outputType = (String) ((AugmentationNode) dataChild).getValue().iterator().next().getValue();
+                outputType = (String) ((AugmentationNode) dataChild).body().iterator().next().body();
             }
         }
 
-        final Collection<LeafSetEntryNode> entryNodes = leafSet.getValue();
+        final Collection<LeafSetEntryNode<?>> entryNodes = leafSet.body();
         final List<SchemaPath> paths = new ArrayList<>();
         String streamName = CREATE_NOTIFICATION_STREAM + "/";
 
         StringBuilder streamNameBuilder = new StringBuilder(streamName);
-        final Iterator<LeafSetEntryNode> iterator = entryNodes.iterator();
+        final Iterator<LeafSetEntryNode<?>> iterator = entryNodes.iterator();
         while (iterator.hasNext()) {
-            final QName valueQName = QName.create((String) iterator.next().getValue());
-            final Module module = controllerContext.findModuleByNamespace(valueQName.getModule().getNamespace());
-            Preconditions.checkNotNull(module,
-                    "Module for namespace " + valueQName.getModule().getNamespace() + " does not exist");
+            final QName valueQName = QName.create((String) iterator.next().body());
+            final XMLNamespace namespace = valueQName.getModule().getNamespace();
+            final Module module = controllerContext.findModuleByNamespace(namespace);
+            checkNotNull(module, "Module for namespace %s does not exist", namespace);
             NotificationDefinition notifiDef = null;
             for (final NotificationDefinition notification : module.getNotifications()) {
                 if (notification.getQName().equals(valueQName)) {
@@ -1537,8 +1526,7 @@ public final class RestconfImpl implements RestconfService {
                 }
             }
             final String moduleName = module.getName();
-            Preconditions.checkNotNull(notifiDef,
-                    "Notification " + valueQName + "doesn't exist in module " + moduleName);
+            checkNotNull(notifiDef, "Notification %s does not exist in module %s", valueQName, moduleName);
             paths.add(notifiDef.getPath());
             streamNameBuilder.append(moduleName).append(':').append(valueQName.getLocalName());
             if (iterator.hasNext()) {
@@ -1562,4 +1550,10 @@ public final class RestconfImpl implements RestconfService {
 
         return Futures.immediateFuture(new DefaultDOMRpcResult(output));
     }
+
+    private static EffectiveModelContext modelContext(final DOMMountPoint mountPoint) {
+        return mountPoint.getService(DOMSchemaService.class)
+            .flatMap(svc -> Optional.ofNullable(svc.getGlobalContext()))
+            .orElse(null);
+    }
 }