--- /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.controller.yang.model.util;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import java.util.Set;
+
+import org.opendaylight.controller.yang.common.QName;
+import org.opendaylight.controller.yang.model.api.ContainerSchemaNode;
+import org.opendaylight.controller.yang.model.api.DataNodeContainer;
+import org.opendaylight.controller.yang.model.api.DataSchemaNode;
+import org.opendaylight.controller.yang.model.api.ListSchemaNode;
+import org.opendaylight.controller.yang.model.api.Module;
+import org.opendaylight.controller.yang.model.api.ModuleImport;
+import org.opendaylight.controller.yang.model.api.RevisionAwareXPath;
+import org.opendaylight.controller.yang.model.api.SchemaContext;
+import org.opendaylight.controller.yang.model.api.SchemaNode;
+import org.opendaylight.controller.yang.model.api.SchemaPath;
+
+public final class SchemaContextUtil {
+
+ private final SchemaContext context;
+
+ public SchemaContextUtil(final SchemaContext context) {
+ this.context = context;
+ }
+
+ public DataSchemaNode findDataSchemaNode(final Module module,
+ final RevisionAwareXPath nonCondXPath) {
+ if (nonCondXPath != null) {
+ final String strXPath = nonCondXPath.toString();
+
+ if (strXPath != null) {
+ if (strXPath.matches(".*//[.* | .*//].*")) {
+ // TODO: function to escape conditions in path
+ }
+ if (nonCondXPath.isAbsolute()) {
+ final Queue<String> queuedPath = xpathToQueuedPath(strXPath);
+ if (queuedPath != null) {
+ final DataSchemaNode dataNode = findSchemaNodeForGivenPath(
+ module, queuedPath);
+ return dataNode;
+ }
+ }
+ }
+ }
+ return null;
+ }
+
+ public DataSchemaNode findDataSchemaNodeForRelativeXPath(
+ final Module module, final SchemaNode actualSchemaNode,
+ final RevisionAwareXPath relativeXPath) {
+ if ((actualSchemaNode != null) && (relativeXPath != null)
+ && !relativeXPath.isAbsolute()) {
+
+ final SchemaPath actualNodePath = actualSchemaNode.getPath();
+ if (actualNodePath != null) {
+ final Queue<String> queuedPath = resolveRelativeXPath(
+ relativeXPath, actualNodePath);
+
+ if (queuedPath != null) {
+ final DataSchemaNode dataNode = findSchemaNodeForGivenPath(
+ module, queuedPath);
+ return dataNode;
+ }
+ }
+ }
+
+ return null;
+ }
+
+ public Module resolveModuleFromSchemaPath(final SchemaPath schemaPath) {
+ if ((schemaPath != null) && (schemaPath.getPath() != null)) {
+ final QName qname = schemaPath.getPath().get(0);
+
+ if ((qname != null) && (qname.getNamespace() != null)) {
+ return context
+ .findModuleByNamespace(qname.getNamespace());
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Search which starts from root of Module.
+ *
+ * @param module
+ * @param prefixedPath
+ * @return
+ */
+ private DataSchemaNode findSchemaNodeForGivenPath(final Module module,
+ final Queue<String> prefixedPath) {
+ if ((module != null) && (prefixedPath != null)) {
+ DataNodeContainer nextContainer = module;
+ final String modulePrefix = module.getPrefix();
+
+ String childNodeName = null;
+ DataSchemaNode schemaNode = null;
+ while ((nextContainer != null) && (prefixedPath.size() > 0)) {
+ childNodeName = prefixedPath.poll();
+ if (childNodeName.contains(":")) {
+ final String[] prefixedChildNode = childNodeName.split(":");
+ if ((modulePrefix != null)
+ && modulePrefix.equals(prefixedChildNode[0])) {
+
+ childNodeName = prefixedChildNode[1];
+ } else {
+ final Module nextModule = resolveModuleForPrefix(
+ prefixedChildNode[0], module);
+ final Queue<String> nextModulePrefixedPath = new LinkedList<String>();
+ nextModulePrefixedPath.add(childNodeName);
+ nextModulePrefixedPath.addAll(prefixedPath);
+ prefixedPath.clear();
+
+ schemaNode = findSchemaNodeForGivenPath(nextModule,
+ nextModulePrefixedPath);
+
+ return schemaNode;
+ }
+ }
+
+ schemaNode = nextContainer.getDataChildByName(childNodeName);
+ if (schemaNode instanceof ContainerSchemaNode) {
+ nextContainer = (ContainerSchemaNode) schemaNode;
+ } else if (schemaNode instanceof ListSchemaNode) {
+ nextContainer = (ListSchemaNode) schemaNode;
+ } else {
+ return schemaNode;
+ }
+ }
+ }
+ return null;
+ }
+
+ private Module resolveModuleForPrefix(final String prefix,
+ final Module parent) {
+ if ((prefix != null) && (parent != null)) {
+ final Set<ModuleImport> imports = parent.getImports();
+
+ if (imports != null) {
+ for (final ModuleImport impModule : imports) {
+ final String impModPrefix = impModule.getPrefix();
+ if ((impModPrefix != null) && prefix.equals(impModPrefix)) {
+ return resolveModuleFromContext(prefix,
+ impModule.getModuleName());
+ }
+ }
+ }
+ }
+ return null;
+ }
+
+ private Module resolveModuleFromContext(final String prefix,
+ final String moduleName) {
+ final Set<Module> modules = context.getModules();
+
+ if ((prefix != null) && (moduleName != null) && (modules != null)) {
+ for (Module module : modules) {
+ if ((module != null) && prefix.equals(module.getPrefix())
+ && moduleName.equals(module.getName())) {
+ return module;
+ }
+ }
+ }
+ return null;
+ }
+
+ private Queue<String> xpathToQueuedPath(final String xpath) {
+ final Queue<String> retQueue = new LinkedList<String>();
+ if ((xpath != null)) {
+ final String[] prefixedPath = xpath.split("/");
+
+ if (prefixedPath != null) {
+ for (int i = 0; i < prefixedPath.length; ++i) {
+ if (!prefixedPath[i].isEmpty()) {
+ retQueue.add(prefixedPath[i]);
+ }
+ }
+ }
+ }
+ return retQueue;
+ }
+
+ private Queue<String> resolveRelativeXPath(
+ final RevisionAwareXPath relativeXPath,
+ final SchemaPath leafrefSchemaPath) {
+ final Queue<String> absolutePath = new LinkedList<String>();
+
+ if ((relativeXPath != null) && !relativeXPath.isAbsolute()
+ && (leafrefSchemaPath != null)) {
+ final String strXPath = relativeXPath.toString();
+ if (strXPath != null) {
+ final String[] xpaths = strXPath.split("/");
+
+ if (xpaths != null) {
+ int colCount = 0;
+ while (xpaths[colCount].contains("..")) {
+ ++colCount;
+ }
+ final List<QName> path = leafrefSchemaPath.getPath();
+ if (path != null) {
+ int lenght = path.size() - colCount;
+ for (int i = 0; i < lenght; ++i) {
+ absolutePath.add(path.get(i).getLocalName());
+ }
+ for (int i = colCount; i < xpaths.length; ++i) {
+ absolutePath.add(xpaths[i]);
+ }
+ }
+ }
+ }
+ }
+ return absolutePath;
+ }
+}
Code Review / controller.git / blobdiff