+++ /dev/null
-/*
- * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.yangtools.yang.parser.rfc7950.namespace;
-
-import com.google.common.annotations.Beta;
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.Optional;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
-import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
-import org.opendaylight.yangtools.yang.model.api.stmt.UnknownStatement;
-import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StatementNamespace;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
-import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
-
-/**
- * Statement local namespace, which holds direct schema node descendants.
- */
-@Beta
-public final class ChildSchemaNodeNamespace<D extends DeclaredStatement<QName>, E extends EffectiveStatement<QName, D>>
- extends NamespaceBehaviour<QName, StmtContext<?, D, E>, ChildSchemaNodeNamespace<D, E>>
- implements StatementNamespace<QName, D, E> {
- public ChildSchemaNodeNamespace() {
- super((Class) ChildSchemaNodeNamespace.class);
- }
-
- @Override
- public StmtContext<?, D, E> get(final QName key) {
- // TODO Auto-generated method stub
- return null;
- }
-
- @Override
- public StmtContext<?, D, E> getFrom(final NamespaceStorageNode storage, final QName key) {
- // Get the backing storage node for the requested storage
- final NamespaceStorageNode storageNode = globalOrStatementSpecific(storage);
- // Check try to look up existing node
- final StmtContext<?, D, E> existing = storageNode.getFromLocalStorage(getIdentifier(), key);
-
- // An existing node takes precedence, if it does not exist try to request it
- return existing != null ? existing : requestFrom(storageNode, key);
- }
-
- private static <D extends DeclaredStatement<QName>, E extends EffectiveStatement<QName, D>>
- StmtContext<?, D, E> requestFrom(final NamespaceStorageNode storageNode, final QName key) {
- return storageNode instanceof OnDemandSchemaTreeStorageNode
- ? ((OnDemandSchemaTreeStorageNode) storageNode).requestSchemaTreeChild(key) : null;
- }
-
- @Override
- public Map<QName, StmtContext<?, D, E>> getAllFrom(final NamespaceStorageNode storage) {
- // TODO Auto-generated method stub
- return null;
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public void addTo(final NamespaceStorageNode storage, final QName key, final StmtContext<?, D, E> value) {
- final StmtContext<?, D, E> prev = globalOrStatementSpecific(storage).putToLocalStorageIfAbsent(
- ChildSchemaNodeNamespace.class, key, value);
-
- if (prev != null) {
- throw new SourceException(value.getStatementSourceReference(),
- "Error in module '%s': cannot add '%s'. Node name collision: '%s' already declared at %s",
- value.getRoot().rawStatementArgument(), key, prev.getStatementArgument(),
- prev.getStatementSourceReference());
- }
- }
-
- /**
- * Find statement context identified by interpreting specified {@link SchemaNodeIdentifier} starting at specified
- * {@link StmtContext}.
- *
- * @param root Search root context
- * @param identifier {@link SchemaNodeIdentifier} relative to search root
- * @return Matching statement context, if present.
- * @throws NullPointerException if any of the arguments is null
- */
- public static Optional<StmtContext<?, ?, ?>> findNode(final StmtContext<?, ?, ?> root,
- final SchemaNodeIdentifier identifier) {
- final Iterator<QName> iterator = identifier.getNodeIdentifiers().iterator();
- if (!iterator.hasNext()) {
- return Optional.of(root);
- }
-
- QName nextPath = iterator.next();
- @SuppressWarnings("unchecked")
- StmtContext<?, ?, ?> current = (StmtContext<?, ?, ?>) root.getFromNamespace(ChildSchemaNodeNamespace.class,
- nextPath);
- if (current == null) {
- return Optional.ofNullable(tryToFindUnknownStatement(nextPath.getLocalName(), root));
- }
- while (current != null && iterator.hasNext()) {
- nextPath = iterator.next();
- @SuppressWarnings("unchecked")
- final StmtContext<?, ?, ?> nextNodeCtx = (StmtContext<?, ?, ?>) current.getFromNamespace(
- ChildSchemaNodeNamespace.class, nextPath);
- if (nextNodeCtx == null) {
- return Optional.ofNullable(tryToFindUnknownStatement(nextPath.getLocalName(), current));
- }
- current = nextNodeCtx;
- }
- return Optional.ofNullable(current);
- }
-
- @SuppressWarnings("unchecked")
- private static StmtContext<?, ?, ?> tryToFindUnknownStatement(final String localName,
- final StmtContext<?, ?, ?> current) {
- final Collection<? extends StmtContext<?, ?, ?>> unknownSubstatements = StmtContextUtils.findAllSubstatements(
- current, UnknownStatement.class);
- for (final StmtContext<?, ?, ?> unknownSubstatement : unknownSubstatements) {
- if (localName.equals(unknownSubstatement.rawStatementArgument())) {
- return unknownSubstatement;
- }
- }
- return null;
- }
-
- private static NamespaceStorageNode globalOrStatementSpecific(final NamespaceStorageNode storage) {
- NamespaceStorageNode current = storage;
- while (!isLocalOrGlobal(current.getStorageNodeType())) {
- current = current.getParentNamespaceStorage();
- }
- return current;
- }
-
- private static boolean isLocalOrGlobal(final StorageNodeType type) {
- return type == StorageNodeType.STATEMENT_LOCAL || type == StorageNodeType.GLOBAL;
- }
-}
Code Review / yangtools.git / blobdiff