import com.google.common.base.CharMatcher;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
-import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.base.Splitter;
import com.google.common.base.Strings;
import java.net.URISyntaxException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
-import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
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.EmptyType;
-import org.opendaylight.yangtools.yang.parser.builder.api.GroupingBuilder;
-import org.opendaylight.yangtools.yang.parser.builder.impl.ContainerSchemaNodeBuilder;
-import org.opendaylight.yangtools.yang.parser.builder.impl.LeafSchemaNodeBuilder;
-import org.opendaylight.yangtools.yang.parser.builder.impl.ModuleBuilder;
-import org.opendaylight.yangtools.yang.parser.impl.YangParserImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
private static final RestconfImpl INSTANCE = new RestconfImpl();
+ /**
+ * Notifications are served on port 8181.
+ */
private static final int NOTIFICATION_PORT = 8181;
private static final int CHAR_NOT_FOUND = -1;
private static final String SAL_REMOTE_NAMESPACE = "urn:opendaylight:params:xml:ns:yang:controller:md:sal:remote";
- private static final String SAL_REMOTE_RPC_SUBSRCIBE = "create-data-change-event-subscription";
-
private BrokerFacade broker;
private ControllerContext controllerContext;
@Override
public NormalizedNodeContext getModules(final UriInfo uriInfo) {
- final Set<Module> allModules = controllerContext.getAllModules();
+ final Set<Module> allModules = this.controllerContext.getAllModules();
final MapNode allModuleMap = makeModuleMapNode(allModules);
- final SchemaContext schemaContext = controllerContext.getGlobalSchema();
+ final SchemaContext schemaContext = this.controllerContext.getGlobalSchema();
final Module restconfModule = getRestconfModule();
- final DataSchemaNode modulesSchemaNode = controllerContext.getRestconfModuleRestConfSchemaNode(
+ final DataSchemaNode modulesSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
restconfModule, Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
Preconditions.checkState(modulesSchemaNode instanceof ContainerSchemaNode);
throw new RestconfDocumentedException(errMsg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
}
- final InstanceIdentifierContext<?> mountPointIdentifier = controllerContext.toMountPointIdentifier(identifier);
+ final InstanceIdentifierContext<?> mountPointIdentifier = this.controllerContext.toMountPointIdentifier(identifier);
final DOMMountPoint mountPoint = mountPointIdentifier.getMountPoint();
- final Set<Module> modules = controllerContext.getAllModules(mountPoint);
+ final Set<Module> modules = this.controllerContext.getAllModules(mountPoint);
final MapNode mountPointModulesMap = makeModuleMapNode(modules);
final Module restconfModule = getRestconfModule();
- final DataSchemaNode modulesSchemaNode = controllerContext.getRestconfModuleRestConfSchemaNode(
+ final DataSchemaNode modulesSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
restconfModule, Draft02.RestConfModule.MODULES_CONTAINER_SCHEMA_NODE);
Preconditions.checkState(modulesSchemaNode instanceof ContainerSchemaNode);
moduleContainerBuilder.withChild(mountPointModulesMap);
return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, modulesSchemaNode,
- mountPoint, controllerContext.getGlobalSchema()), moduleContainerBuilder.build(),
+ mountPoint, this.controllerContext.getGlobalSchema()), moduleContainerBuilder.build(),
QueryParametersParser.parseWriterParameters(uriInfo));
}
DOMMountPoint mountPoint = null;
final SchemaContext schemaContext;
if (identifier.contains(ControllerContext.MOUNT)) {
- final InstanceIdentifierContext<?> mountPointIdentifier = controllerContext.toMountPointIdentifier(identifier);
+ final InstanceIdentifierContext<?> mountPointIdentifier = this.controllerContext.toMountPointIdentifier(identifier);
mountPoint = mountPointIdentifier.getMountPoint();
- module = controllerContext.findModuleByNameAndRevision(mountPoint, moduleNameAndRevision);
+ module = this.controllerContext.findModuleByNameAndRevision(mountPoint, moduleNameAndRevision);
schemaContext = mountPoint.getSchemaContext();
} else {
- module = controllerContext.findModuleByNameAndRevision(moduleNameAndRevision);
- schemaContext = controllerContext.getGlobalSchema();
+ module = this.controllerContext.findModuleByNameAndRevision(moduleNameAndRevision);
+ schemaContext = this.controllerContext.getGlobalSchema();
}
if (module == null) {
final Set<Module> modules = Collections.singleton(module);
final MapNode moduleMap = makeModuleMapNode(modules);
- final DataSchemaNode moduleSchemaNode = controllerContext.getRestconfModuleRestConfSchemaNode(
+ final DataSchemaNode moduleSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
restconfModule, Draft02.RestConfModule.MODULE_LIST_SCHEMA_NODE);
Preconditions.checkState(moduleSchemaNode instanceof ListSchemaNode);
@Override
public NormalizedNodeContext getAvailableStreams(final UriInfo uriInfo) {
- final SchemaContext schemaContext = controllerContext.getGlobalSchema();
+ final SchemaContext schemaContext = this.controllerContext.getGlobalSchema();
final Set<String> availableStreams = Notificator.getStreamNames();
final Module restconfModule = getRestconfModule();
- final DataSchemaNode streamSchemaNode = controllerContext.getRestconfModuleRestConfSchemaNode(restconfModule,
+ final DataSchemaNode streamSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(restconfModule,
Draft02.RestConfModule.STREAM_LIST_SCHEMA_NODE);
Preconditions.checkState(streamSchemaNode instanceof ListSchemaNode);
listStreamsBuilder.withChild(toStreamEntryNode(streamName, streamSchemaNode));
}
- final DataSchemaNode streamsContainerSchemaNode = controllerContext.getRestconfModuleRestConfSchemaNode(
+ final DataSchemaNode streamsContainerSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
restconfModule, Draft02.RestConfModule.STREAMS_CONTAINER_SCHEMA_NODE);
Preconditions.checkState(streamsContainerSchemaNode instanceof ContainerSchemaNode);
@Override
public NormalizedNodeContext getOperations(final UriInfo uriInfo) {
- final Set<Module> allModules = controllerContext.getAllModules();
+ final Set<Module> allModules = this.controllerContext.getAllModules();
return operationsFromModulesToNormalizedContext(allModules, null);
}
Set<Module> modules = null;
DOMMountPoint mountPoint = null;
if (identifier.contains(ControllerContext.MOUNT)) {
- final InstanceIdentifierContext<?> mountPointIdentifier = controllerContext.toMountPointIdentifier(identifier);
+ final InstanceIdentifierContext<?> mountPointIdentifier = this.controllerContext.toMountPointIdentifier(identifier);
mountPoint = mountPointIdentifier.getMountPoint();
- modules = controllerContext.getAllModules(mountPoint);
+ modules = this.controllerContext.getAllModules(mountPoint);
} else {
final String errMsg = "URI has bad format. If operations behind mount point should be showed, URI has to end with ";
return operationsFromModulesToNormalizedContext(modules, mountPoint);
}
- private static final Predicate<GroupingBuilder> GROUPING_FILTER = new Predicate<GroupingBuilder>() {
- @Override
- public boolean apply(final GroupingBuilder g) {
- return Draft02.RestConfModule.RESTCONF_GROUPING_SCHEMA_NODE.equals(g.getQName().getLocalName());
- }
- };
-
private NormalizedNodeContext operationsFromModulesToNormalizedContext(final Set<Module> modules,
final DOMMountPoint mountPoint) {
-
- final Module restconfModule = getRestconfModule();
- final ModuleBuilder restConfModuleBuilder = new ModuleBuilder(restconfModule);
- final Set<GroupingBuilder> gropingBuilders = restConfModuleBuilder.getGroupingBuilders();
- final Iterable<GroupingBuilder> filteredGroups = Iterables.filter(gropingBuilders, GROUPING_FILTER);
- final GroupingBuilder restconfGroupingBuilder = Iterables.getFirst(filteredGroups, null);
- final ContainerSchemaNodeBuilder restContainerSchemaNodeBuilder = (ContainerSchemaNodeBuilder) restconfGroupingBuilder
- .getDataChildByName(Draft02.RestConfModule.RESTCONF_CONTAINER_SCHEMA_NODE);
- final ContainerSchemaNodeBuilder containerSchemaNodeBuilder = (ContainerSchemaNodeBuilder) restContainerSchemaNodeBuilder
- .getDataChildByName(Draft02.RestConfModule.OPERATIONS_CONTAINER_SCHEMA_NODE);
-
- final ContainerSchemaNodeBuilder fakeOperationsSchemaNodeBuilder = containerSchemaNodeBuilder;
- final SchemaPath fakeSchemaPath = fakeOperationsSchemaNodeBuilder.getPath().createChild(QName.create("dummy"));
-
- final List<LeafNode<Object>> operationsAsData = new ArrayList<>();
-
- for (final Module module : modules) {
- final Set<RpcDefinition> rpcs = module.getRpcs();
- for (final RpcDefinition rpc : rpcs) {
- final QName rpcQName = rpc.getQName();
- final String name = module.getName();
-
- final QName qName = QName.create(restconfModule.getQNameModule(), rpcQName.getLocalName());
- final LeafSchemaNodeBuilder leafSchemaNodeBuilder = new LeafSchemaNodeBuilder(name, 0, qName, fakeSchemaPath);
- final LeafSchemaNodeBuilder fakeRpcSchemaNodeBuilder = leafSchemaNodeBuilder;
- fakeRpcSchemaNodeBuilder.setAugmenting(true);
-
- final EmptyType instance = EmptyType.getInstance();
- fakeRpcSchemaNodeBuilder.setType(instance);
- final LeafSchemaNode fakeRpcSchemaNode = fakeRpcSchemaNodeBuilder.build();
- fakeOperationsSchemaNodeBuilder.addChildNode(fakeRpcSchemaNode);
-
- final LeafNode<Object> leaf = Builders.leafBuilder(fakeRpcSchemaNode).build();
- operationsAsData.add(leaf);
- }
- }
-
- final ContainerSchemaNode operContainerSchemaNode = fakeOperationsSchemaNodeBuilder.build();
- final DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> operContainerNode = Builders.containerBuilder(operContainerSchemaNode);
-
- for (final LeafNode<Object> oper : operationsAsData) {
- operContainerNode.withChild(oper);
- }
-
- final Set<Module> fakeRpcModules = Collections.singleton(restConfModuleBuilder.build());
-
- final YangParserImpl yangParser = new YangParserImpl();
- final SchemaContext fakeSchemaCx = yangParser.resolveSchemaContext(fakeRpcModules);
-
- final InstanceIdentifierContext<?> fakeIICx = new InstanceIdentifierContext<>(null, operContainerSchemaNode, mountPoint, fakeSchemaCx);
-
- return new NormalizedNodeContext(fakeIICx, operContainerNode.build());
+ throw new UnsupportedOperationException();
}
private Module getRestconfModule() {
- final Module restconfModule = controllerContext.getRestconfModule();
+ final Module restconfModule = this.controllerContext.getRestconfModule();
if (restconfModule == null) {
LOG.debug("ietf-restconf module was not found.");
throw new RestconfDocumentedException("ietf-restconf module was not found.", ErrorType.APPLICATION,
if (namespace.toString().equals(SAL_REMOTE_NAMESPACE)) {
response = invokeSalRemoteRpcSubscribeRPC(payload);
} else {
- response = broker.invokeRpc(type, payload.getData());
+ response = this.broker.invokeRpc(type, payload.getData());
}
- schemaContext = controllerContext.getGlobalSchema();
+ schemaContext = this.controllerContext.getGlobalSchema();
}
final DOMRpcResult result = checkRpcResponse(response);
RpcDefinition resultNodeSchema = null;
final NormalizedNode<?, ?> resultData = result.getResult();
- if (result != null && result.getResult() != null) {
+ if ((result != null) && (result.getResult() != null)) {
resultNodeSchema = (RpcDefinition) payload.getInstanceIdentifierContext().getSchemaNode();
}
}
try {
final DOMRpcResult retValue = response.get();
- if (retValue.getErrors() == null || retValue.getErrors().isEmpty()) {
+ if ((retValue.getErrors() == null) || retValue.getErrors().isEmpty()) {
return retValue;
}
LOG.debug("RpcError message", retValue.getErrors());
}
private static void validateInput(final SchemaNode inputSchema, final NormalizedNodeContext payload) {
- if (inputSchema != null && payload.getData() == null) {
+ if ((inputSchema != null) && (payload.getData() == null)) {
// expected a non null payload
throw new RestconfDocumentedException("Input is required.", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
- } else if (inputSchema == null && payload.getData() != null) {
+ } else if ((inputSchema == null) && (payload.getData() != null)) {
// did not expect any input
throw new RestconfDocumentedException("No input expected.", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
}
final YangInstanceIdentifier pathIdentifier = ((YangInstanceIdentifier) pathValue);
String streamName = null;
if (!pathIdentifier.isEmpty()) {
- final String fullRestconfIdentifier = controllerContext.toFullRestconfIdentifier(pathIdentifier, null);
+ final String fullRestconfIdentifier = this.controllerContext.toFullRestconfIdentifier(pathIdentifier, null);
LogicalDatastoreType datastore = parseEnumTypeParameter(value, LogicalDatastoreType.class, DATASTORE_PARAM_NAME);
datastore = datastore == null ? DEFAULT_DATASTORE : datastore;
@Override
public NormalizedNodeContext invokeRpc(final String identifier, final String noPayload, final UriInfo uriInfo) {
- if (noPayload != null && !CharMatcher.WHITESPACE.matchesAllOf(noPayload)) {
+ if ((noPayload != null) && !CharMatcher.WHITESPACE.matchesAllOf(noPayload)) {
throw new RestconfDocumentedException("Content must be empty.", ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
}
final SchemaContext schemaContext;
if (identifier.contains(ControllerContext.MOUNT)) {
// mounted RPC call - look up mount instance.
- final InstanceIdentifierContext<?> mountPointId = controllerContext.toMountPointIdentifier(identifier);
+ final InstanceIdentifierContext<?> mountPointId = this.controllerContext.toMountPointIdentifier(identifier);
mountPoint = mountPointId.getMountPoint();
schemaContext = mountPoint.getSchemaContext();
final int startOfRemoteRpcName = identifier.lastIndexOf(ControllerContext.MOUNT)
throw new RestconfDocumentedException(slashErrorMsg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
} else {
identifierEncoded = identifier;
- schemaContext = controllerContext.getGlobalSchema();
+ schemaContext = this.controllerContext.getGlobalSchema();
}
- final String identifierDecoded = controllerContext.urlPathArgDecode(identifierEncoded);
+ final String identifierDecoded = this.controllerContext.urlPathArgDecode(identifierEncoded);
RpcDefinition rpc = null;
if (mountPoint == null) {
- rpc = controllerContext.getRpcDefinition(identifierDecoded, null);
+ rpc = this.controllerContext.getRpcDefinition(identifierDecoded, null);
} else {
rpc = findRpc(mountPoint.getSchemaContext(), identifierDecoded);
}
}
response = mountRpcServices.get().invokeRpc(rpc.getPath(), null);
} else {
- response = broker.invokeRpc(rpc.getPath(), null);
+ response = this.broker.invokeRpc(rpc.getPath(), null);
}
final DOMRpcResult result = checkRpcResponse(response);
@Override
public NormalizedNodeContext readConfigurationData(final String identifier, final UriInfo uriInfo) {
- final InstanceIdentifierContext<?> iiWithData = controllerContext.toInstanceIdentifier(identifier);
+ final InstanceIdentifierContext<?> iiWithData = this.controllerContext.toInstanceIdentifier(identifier);
final DOMMountPoint mountPoint = iiWithData.getMountPoint();
NormalizedNode<?, ?> data = null;
final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
if (mountPoint != null) {
- data = broker.readConfigurationData(mountPoint, normalizedII);
+ data = this.broker.readConfigurationData(mountPoint, normalizedII);
} else {
- data = broker.readConfigurationData(normalizedII);
+ data = this.broker.readConfigurationData(normalizedII);
}
if(data == null) {
final String errMsg = "Request could not be completed because the relevant data model content does not exist ";
@Override
public NormalizedNodeContext readOperationalData(final String identifier, final UriInfo uriInfo) {
- final InstanceIdentifierContext<?> iiWithData = controllerContext.toInstanceIdentifier(identifier);
+ final InstanceIdentifierContext<?> iiWithData = this.controllerContext.toInstanceIdentifier(identifier);
final DOMMountPoint mountPoint = iiWithData.getMountPoint();
NormalizedNode<?, ?> data = null;
final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
if (mountPoint != null) {
- data = broker.readOperationalData(mountPoint, normalizedII);
+ data = this.broker.readOperationalData(mountPoint, normalizedII);
} else {
- data = broker.readOperationalData(normalizedII);
+ data = this.broker.readOperationalData(normalizedII);
}
if(data == null) {
final String errMsg = "Request could not be completed because the relevant data model content does not exist ";
while(true) {
try {
if (mountPoint != null) {
- broker.commitConfigurationDataPut(mountPoint, normalizedII, payload.getData()).checkedGet();
+ this.broker.commitConfigurationDataPut(mountPoint, normalizedII, payload.getData()).checkedGet();
} else {
- broker.commitConfigurationDataPut(controllerContext.getGlobalSchema(), normalizedII, payload.getData()).checkedGet();
+ this.broker.commitConfigurationDataPut(this.controllerContext.getGlobalSchema(), normalizedII, payload.getData()).checkedGet();
}
break;
LOG.debug("Update ConfigDataStore fail " + identifier, e);
throw new RestconfDocumentedException(e.getMessage(), e, e.getErrorList());
}
- } catch (Exception e) {
+ } catch (final Exception e) {
final String errMsg = "Error updating data ";
LOG.debug(errMsg + identifier, e);
throw new RestconfDocumentedException(errMsg, e);
final NormalizedNode<?, ?> data = payload.getData();
if (schemaNode instanceof ListSchemaNode) {
final List<QName> keyDefinitions = ((ListSchemaNode) schemaNode).getKeyDefinition();
- if (lastPathArgument instanceof NodeIdentifierWithPredicates && data instanceof MapEntryNode) {
+ if ((lastPathArgument instanceof NodeIdentifierWithPredicates) && (data instanceof MapEntryNode)) {
final Map<QName, Object> uriKeyValues = ((NodeIdentifierWithPredicates) lastPathArgument).getKeyValues();
isEqualUriAndPayloadKeyValues(uriKeyValues, (MapEntryNode) data, keyDefinitions);
}
final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
try {
if (mountPoint != null) {
- broker.commitConfigurationDataPost(mountPoint, normalizedII, payload.getData()).checkedGet();
+ this.broker.commitConfigurationDataPost(mountPoint, normalizedII, payload.getData()).checkedGet();
} else {
- broker.commitConfigurationDataPost(controllerContext.getGlobalSchema(), normalizedII, payload.getData()).checkedGet();
+ this.broker.commitConfigurationDataPost(this.controllerContext.getGlobalSchema(), normalizedII, payload.getData()).checkedGet();
}
} catch(final RestconfDocumentedException e) {
throw e;
final UriBuilder uriBuilder = uriInfo.getBaseUriBuilder();
uriBuilder.path("config");
try {
- uriBuilder.path(controllerContext.toFullRestconfIdentifier(normalizedII, mountPoint));
+ uriBuilder.path(this.controllerContext.toFullRestconfIdentifier(normalizedII, mountPoint));
} catch (final Exception e) {
LOG.info("Location for instance identifier" + normalizedII + "wasn't created", e);
return null;
@Override
public Response deleteConfigurationData(final String identifier) {
- final InstanceIdentifierContext<?> iiWithData = controllerContext.toInstanceIdentifier(identifier);
+ final InstanceIdentifierContext<?> iiWithData = this.controllerContext.toInstanceIdentifier(identifier);
final DOMMountPoint mountPoint = iiWithData.getMountPoint();
final YangInstanceIdentifier normalizedII = iiWithData.getInstanceIdentifier();
try {
if (mountPoint != null) {
- broker.commitConfigurationDataDelete(mountPoint, normalizedII);
+ this.broker.commitConfigurationDataDelete(mountPoint, normalizedII);
} else {
- broker.commitConfigurationDataDelete(normalizedII).get();
+ this.broker.commitConfigurationDataDelete(normalizedII).get();
}
} catch (final Exception e) {
final Optional<Throwable> searchedException = Iterables.tryFind(Throwables.getCausalChain(e),
ErrorType.APPLICATION, ErrorTag.MISSING_ATTRIBUTE);
}
- broker.registerToListenDataChanges(datastore, scope, listener);
+ this.broker.registerToListenDataChanges(datastore, scope, listener);
final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
int notificationPort = NOTIFICATION_PORT;
}
@Override
- public PATCHStatusContext patchConfigurationData(String identifier, PATCHContext context, UriInfo uriInfo) {
+ public PATCHStatusContext patchConfigurationData(final String identifier, final PATCHContext context, final UriInfo uriInfo) {
if (context == null) {
throw new RestconfDocumentedException("Input is required.", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
}
- return broker.patchConfigurationDataWithinTransaction(context, controllerContext.getGlobalSchema());
+ return this.broker.patchConfigurationDataWithinTransaction(context, this.controllerContext.getGlobalSchema());
}
@Override
- public PATCHStatusContext patchConfigurationData(PATCHContext context, @Context UriInfo uriInfo) {
+ public PATCHStatusContext patchConfigurationData(final PATCHContext context, @Context final UriInfo uriInfo) {
if (context == null) {
throw new RestconfDocumentedException("Input is required.", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
}
- return broker.patchConfigurationDataWithinTransaction(context, controllerContext.getGlobalSchema());
+ return this.broker.patchConfigurationDataWithinTransaction(context, this.controllerContext.getGlobalSchema());
}
/**
private MapNode makeModuleMapNode(final Set<Module> modules) {
Preconditions.checkNotNull(modules);
final Module restconfModule = getRestconfModule();
- final DataSchemaNode moduleSchemaNode = controllerContext.getRestconfModuleRestConfSchemaNode(
+ final DataSchemaNode moduleSchemaNode = this.controllerContext.getRestconfModuleRestConfSchemaNode(
restconfModule, Draft02.RestConfModule.MODULE_LIST_SCHEMA_NODE);
Preconditions.checkState(moduleSchemaNode instanceof ListSchemaNode);