--- /dev/null
+/*
+ * Copyright (c) 2013 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.builder.impl;
+
+import java.util.Comparator;
+import java.util.Date;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+
+import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
+import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.parser.builder.api.Builder;
+import org.opendaylight.yangtools.yang.parser.builder.api.DataNodeContainerBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.DataSchemaNodeBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.GroupingBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.RefineBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.UsesNodeBuilder;
+import org.opendaylight.yangtools.yang.parser.util.YangParseException;
+
+public final class GroupingUtils {
+
+ private GroupingUtils() {
+ }
+
+ /**
+ * Search given modules for grouping by name defined in uses node.
+ *
+ * @param usesBuilder
+ * builder of uses statement
+ * @param modules
+ * all loaded modules
+ * @param module
+ * current module
+ * @return grouping with given name if found, null otherwise
+ */
+ public static GroupingBuilder getTargetGroupingFromModules(final UsesNodeBuilder usesBuilder,
+ final Map<String, TreeMap<Date, ModuleBuilder>> modules, final ModuleBuilder module) {
+ final int line = usesBuilder.getLine();
+
+ final String groupingString = usesBuilder.getGroupingPathAsString();
+ String groupingPrefix;
+ String groupingName;
+
+ if (groupingString.contains(":")) {
+ String[] splitted = groupingString.split(":");
+ if (splitted.length != 2 || groupingString.contains("/")) {
+ throw new YangParseException(module.getName(), line, "Invalid name of target grouping");
+ }
+ groupingPrefix = splitted[0];
+ groupingName = splitted[1];
+ } else {
+ groupingPrefix = module.getPrefix();
+ groupingName = groupingString;
+ }
+
+ ModuleBuilder dependentModule;
+ if(groupingPrefix == null) {
+ dependentModule = module;
+ }
+ if (groupingPrefix.equals(module.getPrefix())) {
+ dependentModule = module;
+ } else {
+ dependentModule = BuilderUtils.findModuleFromBuilders(modules, module, groupingPrefix, line);
+ }
+
+ if (dependentModule == null) {
+ return null;
+ }
+
+ GroupingBuilder result;
+ Set<GroupingBuilder> groupings = dependentModule.getGroupingBuilders();
+ result = findGroupingBuilder(groupings, groupingName);
+ if (result != null) {
+ return result;
+ }
+
+ Builder parent = usesBuilder.getParent();
+
+ while (parent != null) {
+ if (parent instanceof DataNodeContainerBuilder) {
+ groupings = ((DataNodeContainerBuilder) parent).getGroupingBuilders();
+ } else if (parent instanceof RpcDefinitionBuilder) {
+ groupings = ((RpcDefinitionBuilder) parent).getGroupings();
+ }
+ result = findGroupingBuilder(groupings, groupingName);
+ if (result == null) {
+ parent = parent.getParent();
+ } else {
+ break;
+ }
+ }
+
+ if (result == null) {
+ throw new YangParseException(module.getName(), line, "Referenced grouping '" + groupingName
+ + "' not found.");
+ }
+ return result;
+ }
+
+ /**
+ * Search context for grouping by name defined in uses node.
+ *
+ * @param usesBuilder
+ * builder of uses statement
+ * @param module
+ * current module
+ * @param context
+ * SchemaContext containing already resolved modules
+ * @return grouping with given name if found, null otherwise
+ */
+ public static GroupingDefinition getTargetGroupingFromContext(final UsesNodeBuilder usesBuilder,
+ final ModuleBuilder module, final SchemaContext context) {
+ final int line = usesBuilder.getLine();
+ String groupingString = usesBuilder.getGroupingPathAsString();
+ String groupingPrefix;
+ String groupingName;
+
+ if (groupingString.contains(":")) {
+ String[] splitted = groupingString.split(":");
+ if (splitted.length != 2 || groupingString.contains("/")) {
+ throw new YangParseException(module.getName(), line, "Invalid name of target grouping");
+ }
+ groupingPrefix = splitted[0];
+ groupingName = splitted[1];
+ } else {
+ groupingPrefix = module.getPrefix();
+ groupingName = groupingString;
+ }
+
+ Module dependentModule = BuilderUtils.findModuleFromContext(context, module, groupingPrefix, line);
+ return findGroupingDefinition(dependentModule.getGroupings(), groupingName);
+ }
+
+ /**
+ * Find grouping by name.
+ *
+ * @param groupings
+ * collection of grouping builders to search
+ * @param name
+ * name of grouping
+ * @return grouping with given name if present in collection, null otherwise
+ */
+ public static GroupingBuilder findGroupingBuilder(final Set<GroupingBuilder> groupings, final String name) {
+ for (GroupingBuilder grouping : groupings) {
+ if (grouping.getQName().getLocalName().equals(name)) {
+ return grouping;
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Find grouping by name.
+ *
+ * @param groupings
+ * collection of grouping definitions to search
+ * @param name
+ * name of grouping
+ * @return grouping with given name if present in collection, null otherwise
+ */
+ public static GroupingDefinition findGroupingDefinition(final Set<GroupingDefinition> groupings, final String name) {
+ for (GroupingDefinition grouping : groupings) {
+ if (grouping.getQName().getLocalName().equals(name)) {
+ return grouping;
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Perform refinement of uses target grouping nodes. Uses process has to be
+ * already performed.
+ *
+ * @param usesNode
+ * uses node containing refine statements
+ */
+ public static void performRefine(final UsesNodeBuilder usesNode) {
+ for (RefineBuilder refine : usesNode.getRefines()) {
+ String refineTargetPath = refine.getTargetPathString();
+
+ String[] splitted = refineTargetPath.split("/");
+ Builder currentNode = usesNode.getParent();
+ for (String pathElement : splitted) {
+ if (currentNode instanceof DataNodeContainerBuilder) {
+ currentNode = ((DataNodeContainerBuilder) currentNode).getDataChildByName(pathElement);
+ } else if (currentNode instanceof ChoiceBuilder) {
+ currentNode = ((ChoiceBuilder) currentNode).getCaseNodeByName(pathElement);
+ }
+ }
+
+ DataSchemaNodeBuilder nodeToRefine = (DataSchemaNodeBuilder) currentNode;
+ if (nodeToRefine == null) {
+ throw new YangParseException(refine.getModuleName(), refine.getLine(), "Refine target node '"
+ + refine.getTargetPathString() + "' not found");
+ }
+ RefineUtils.performRefine(nodeToRefine, refine);
+ usesNode.addRefineNode(nodeToRefine);
+ }
+ }
+
+ public static class UsesComparator implements Comparator<UsesNodeBuilder> {
+ @Override
+ public int compare(final UsesNodeBuilder o1, final UsesNodeBuilder o2) {
+ return getElementPosition(o2) - getElementPosition(o1);
+ }
+ }
+
+ private static int getElementPosition(final UsesNodeBuilder usesNode) {
+ int i = 0;
+ Builder parent = usesNode.getParent();
+ while (!(parent instanceof ModuleBuilder)) {
+ parent = parent.getParent();
+ i++;
+ }
+ return i;
+ }
+
+}
Code Review / yangtools.git / blobdiff