2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.mdsal.binding.generator.util;
10 import static com.google.common.base.Preconditions.checkNotNull;
11 import static com.google.common.base.Preconditions.checkState;
13 import com.google.common.base.Preconditions;
15 import java.util.Date;
16 import java.util.Iterator;
17 import javax.annotation.Nullable;
18 import org.opendaylight.yangtools.yang.common.QName;
19 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
20 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
21 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
22 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
23 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
24 import org.opendaylight.yangtools.yang.model.api.NamespaceRevisionAware;
25 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
26 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
27 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
28 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
30 public final class YangSchemaUtils {
31 public static final String AUGMENT_IDENTIFIER = "augment-identifier";
33 private YangSchemaUtils() {
34 throw new UnsupportedOperationException("Helper class. Instantiation is prohibited");
37 public static QName getAugmentationQName(final AugmentationSchema augmentation) {
38 checkNotNull(augmentation, "Augmentation must not be null.");
39 final QName identifier = getAugmentationIdentifier(augmentation);
40 if(identifier != null) {
45 if(augmentation instanceof NamespaceRevisionAware) {
46 namespace = ((NamespaceRevisionAware) augmentation).getNamespace();
47 revision = ((NamespaceRevisionAware) augmentation).getRevision();
49 if(namespace == null || revision == null) {
50 for(final DataSchemaNode child : augmentation.getChildNodes()) {
51 // Derive QName from child nodes
52 if(!child.isAugmenting()) {
53 namespace = child.getQName().getNamespace();
54 revision = child.getQName().getRevision();
59 checkState(namespace != null, "Augmentation namespace must not be null");
60 checkState(revision != null, "Augmentation revision must not be null");
61 // FIXME: Allways return a qname with module namespace.
62 return QName.create(namespace,revision, "foo_augment");
65 public static QName getAugmentationIdentifier(final AugmentationSchema augmentation) {
66 for(final UnknownSchemaNode extension : augmentation.getUnknownSchemaNodes()) {
67 if(AUGMENT_IDENTIFIER.equals(extension.getNodeType().getLocalName())) {
68 return extension.getQName();
75 public static TypeDefinition<?> findTypeDefinition(final SchemaContext context, final SchemaPath path) {
76 final Iterator<QName> arguments = path.getPathFromRoot().iterator();
77 Preconditions.checkArgument(arguments.hasNext(), "Type Definition path must contain at least one element.");
79 QName currentArg = arguments.next();
80 DataNodeContainer currentNode = context.findModuleByNamespaceAndRevision(currentArg.getNamespace(), currentArg.getRevision());
81 if(currentNode == null) {
84 // Last argument is type definition, so we need to cycle until we hit last argument.
85 while(arguments.hasNext()) {
86 // Nested private type - we need to find container/grouping to which type belongs.
87 final DataSchemaNode child = currentNode.getDataChildByName(currentArg);
88 if(child instanceof DataNodeContainer) {
89 currentNode = (DataNodeContainer) child;
90 } else if (child instanceof ChoiceSchemaNode) {
91 final QName caseQName = arguments.next();
92 Preconditions.checkArgument(arguments.hasNext(), "Path must not refer case only.");
93 currentNode = ((ChoiceSchemaNode) child).getCaseNodeByName(caseQName);
96 for (final GroupingDefinition grouping : currentNode.getGroupings()) {
97 if (currentArg.equals(grouping.getQName())) {
98 currentNode = grouping;
103 currentArg = arguments.next();
106 for(final TypeDefinition<?> typedef : currentNode.getTypeDefinitions()) {
107 if(typedef.getQName().equals(currentArg)) {