2 * Copyright (c) 2013 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.yangtools.yang.model.util;
10 import java.util.ArrayList;
11 import java.util.Collection;
12 import java.util.Iterator;
13 import java.util.List;
14 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
15 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
16 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
17 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
18 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
19 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
20 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
23 * DataNodeIterator is iterator, which walks down whole YANG DataNodeContainer
24 * and walks all instances of {@link DataSchemaNode} present in subtree.
27 * Iterator instance is eagerly created, walking happens on initialization. Iteration is not ordered.
29 * @deprecated Use {@link SchemaNodeUtils#getAllContainers(DataNodeContainer)},
30 * {@link SchemaNodeUtils#getAllTypeDefinitions(DataNodeContainer)} or
31 * {@link SchemaNodeUtils#traverse(DataNodeAggregator, DataNodeContainer)} instead.
34 public class DataNodeIterator extends DataNodeAggregator implements Iterator<DataSchemaNode> {
35 private final List<ListSchemaNode> allLists = new ArrayList<>();
36 private final List<ContainerSchemaNode> allContainers = new ArrayList<>();
37 private final List<ChoiceSchemaNode> allChoices = new ArrayList<>();
38 private final List<DataSchemaNode> allChilds = new ArrayList<>();
39 private final List<GroupingDefinition> allGroupings = new ArrayList<>();
40 private final List<TypeDefinition<?>> allTypedefs = new ArrayList<>();
42 private final DataNodeContainer container;
44 public DataNodeIterator(final DataNodeContainer container) {
45 if (container == null) {
46 throw new IllegalArgumentException("Data Node Container MUST be specified and cannot be NULL!");
49 this.container = container;
50 SchemaNodeUtils.traverse(this, container);
54 * Returns list all containers present in subtree.
56 * @return Returns list all containers present in subtree.
58 public List<ContainerSchemaNode> allContainers() {
63 * Returns list all lists present in subtree.
65 * @return Returns list all containers present in subtree.
67 public List<ListSchemaNode> allLists() {
72 * Returns list all choices present in subtree.
74 * @return Returns list all containers present in subtree.
76 public List<ChoiceSchemaNode> allChoices() {
81 * Returns list all groupings present in subtree.
83 * @return Returns list all containers present in subtree.
85 public List<GroupingDefinition> allGroupings() {
90 * Returns list all typedefs present in subtree.
92 * @return Returns list all containers present in subtree.
94 public List<TypeDefinition<?>> allTypedefs() {
99 public boolean hasNext() {
100 return !container.getChildNodes().isEmpty();
104 public DataSchemaNode next() {
105 return allChilds.iterator().next();
109 protected void addChild(final DataSchemaNode childNode) {
110 allChilds.add(childNode);
114 protected void addContainer(final ContainerSchemaNode containerNode) {
115 allContainers.add(containerNode);
119 protected void addList(final ListSchemaNode list) {
124 protected void addChoice(final ChoiceSchemaNode choiceNode) {
125 allChoices.add(choiceNode);
129 protected void addTypedefs(final Collection<? extends TypeDefinition<?>> typeDefs) {
130 allTypedefs.addAll(typeDefs);
134 protected void addGrouping(final GroupingDefinition grouping) {
135 allGroupings.add(grouping);