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.parser.builder.impl;
10 import java.util.Comparator;
11 import java.util.Date;
14 import java.util.TreeMap;
15 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
16 import org.opendaylight.yangtools.yang.model.api.Module;
17 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
18 import org.opendaylight.yangtools.yang.parser.builder.api.Builder;
19 import org.opendaylight.yangtools.yang.parser.builder.api.DataNodeContainerBuilder;
20 import org.opendaylight.yangtools.yang.parser.builder.api.DataSchemaNodeBuilder;
21 import org.opendaylight.yangtools.yang.parser.builder.api.GroupingBuilder;
22 import org.opendaylight.yangtools.yang.parser.builder.api.RefineBuilder;
23 import org.opendaylight.yangtools.yang.parser.builder.api.UsesNodeBuilder;
24 import org.opendaylight.yangtools.yang.parser.util.YangParseException;
26 public final class GroupingUtils {
28 private GroupingUtils() {
32 * Search given modules for grouping by name defined in uses node.
35 * builder of uses statement
40 * @return grouping with given name if found, null otherwise
42 public static GroupingBuilder getTargetGroupingFromModules(final UsesNodeBuilder usesBuilder,
43 final Map<String, TreeMap<Date, ModuleBuilder>> modules, final ModuleBuilder module) {
44 final int line = usesBuilder.getLine();
46 final String groupingString = usesBuilder.getGroupingPathAsString();
47 String groupingPrefix;
50 if (groupingString.contains(":")) {
51 String[] splitted = groupingString.split(":");
52 if (splitted.length != 2 || groupingString.contains("/")) {
53 throw new YangParseException(module.getName(), line, "Invalid name of target grouping");
55 groupingPrefix = splitted[0];
56 groupingName = splitted[1];
58 groupingPrefix = module.getPrefix();
59 groupingName = groupingString;
62 ModuleBuilder dependentModule;
64 if(groupingPrefix == null) {
65 dependentModule = module;
66 } else if (groupingPrefix.equals(module.getPrefix())) {
67 dependentModule = module;
69 dependentModule = BuilderUtils.findModuleFromBuilders(modules, module, groupingPrefix, line);
72 if (dependentModule == null) {
76 GroupingBuilder result;
77 Set<GroupingBuilder> groupings = dependentModule.getGroupingBuilders();
78 result = findGroupingBuilder(groupings, groupingName);
83 Builder parent = usesBuilder.getParent();
85 while (parent != null) {
86 if (parent instanceof DataNodeContainerBuilder) {
87 groupings = ((DataNodeContainerBuilder) parent).getGroupingBuilders();
88 } else if (parent instanceof RpcDefinitionBuilder) {
89 groupings = ((RpcDefinitionBuilder) parent).getGroupings();
91 result = findGroupingBuilder(groupings, groupingName);
93 parent = parent.getParent();
100 throw new YangParseException(module.getName(), line, "Referenced grouping '" + groupingName
107 * Search context for grouping by name defined in uses node.
110 * builder of uses statement
114 * SchemaContext containing already resolved modules
115 * @return grouping with given name if found, null otherwise
117 public static GroupingDefinition getTargetGroupingFromContext(final UsesNodeBuilder usesBuilder,
118 final ModuleBuilder module, final SchemaContext context) {
119 final int line = usesBuilder.getLine();
120 String groupingString = usesBuilder.getGroupingPathAsString();
121 String groupingPrefix;
124 if (groupingString.contains(":")) {
125 String[] splitted = groupingString.split(":");
126 if (splitted.length != 2 || groupingString.contains("/")) {
127 throw new YangParseException(module.getName(), line, "Invalid name of target grouping");
129 groupingPrefix = splitted[0];
130 groupingName = splitted[1];
132 groupingPrefix = module.getPrefix();
133 groupingName = groupingString;
136 Module dependentModule = BuilderUtils.findModuleFromContext(context, module, groupingPrefix, line);
137 return findGroupingDefinition(dependentModule.getGroupings(), groupingName);
141 * Find grouping by name.
144 * collection of grouping builders to search
147 * @return grouping with given name if present in collection, null otherwise
149 private static GroupingBuilder findGroupingBuilder(final Set<GroupingBuilder> groupings, final String name) {
150 for (GroupingBuilder grouping : groupings) {
151 if (grouping.getQName().getLocalName().equals(name)) {
159 * Find grouping by name.
162 * collection of grouping definitions to search
165 * @return grouping with given name if present in collection, null otherwise
167 private static GroupingDefinition findGroupingDefinition(final Set<GroupingDefinition> groupings, final String name) {
168 for (GroupingDefinition grouping : groupings) {
169 if (grouping.getQName().getLocalName().equals(name)) {
177 * Perform refinement of uses target grouping nodes. Uses process has to be
181 * uses node containing refine statements
183 public static void performRefine(final UsesNodeBuilder usesNode) {
184 for (RefineBuilder refine : usesNode.getRefines()) {
185 String refineTargetPath = refine.getTargetPathString();
187 String[] splitted = refineTargetPath.split("/");
188 Builder currentNode = usesNode.getParent();
189 for (String pathElement : splitted) {
190 if (currentNode instanceof DataNodeContainerBuilder) {
191 currentNode = ((DataNodeContainerBuilder) currentNode).getDataChildByName(pathElement);
192 } else if (currentNode instanceof ChoiceBuilder) {
193 currentNode = ((ChoiceBuilder) currentNode).getCaseNodeByName(pathElement);
197 DataSchemaNodeBuilder nodeToRefine = (DataSchemaNodeBuilder) currentNode;
198 if (nodeToRefine == null) {
199 throw new YangParseException(refine.getModuleName(), refine.getLine(), "Refine target node '"
200 + refine.getTargetPathString() + "' not found");
202 RefineUtils.performRefine(nodeToRefine, refine);
203 usesNode.addRefineNode(nodeToRefine);
207 public static class UsesComparator implements Comparator<UsesNodeBuilder> {
209 public int compare(final UsesNodeBuilder o1, final UsesNodeBuilder o2) {
210 return getElementPosition(o2) - getElementPosition(o1);
214 private static int getElementPosition(final UsesNodeBuilder usesNode) {
216 Builder parent = usesNode.getParent();
217 while (!(parent instanceof ModuleBuilder)) {
218 parent = parent.getParent();