--- /dev/null
+/*
+ * Copyright (c) 2014 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.remote.rpc.utils;
+
+import com.google.common.base.Preconditions;
+import com.google.common.base.Splitter;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.Element;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public final class InstanceIdentifierForXmlCodec {
+ private static final Pattern PREDICATE_PATTERN = Pattern.compile("\\[(.*?)\\]");
+ private static final Splitter SLASH_SPLITTER = Splitter.on('/');
+ private static final Splitter COLON_SPLITTER = Splitter.on(':');
+ private static final Splitter AT_SPLITTER = Splitter.on('@');
+ private static final Logger logger = LoggerFactory.getLogger(InstanceIdentifierForXmlCodec.class);
+
+ private InstanceIdentifierForXmlCodec() {
+ throw new UnsupportedOperationException("Utility class");
+ }
+
+ public static YangInstanceIdentifier deserialize(final Element element, final SchemaContext schemaContext) {
+ Preconditions.checkNotNull(element, "Value of element for deserialization can't be null");
+ Preconditions.checkNotNull(schemaContext,
+ "Schema context for deserialization of instance identifier type can't be null");
+
+ final String valueTrimmed = element.getTextContent().trim();
+ final Iterator<String> xPathParts = SLASH_SPLITTER.split(valueTrimmed).iterator();
+
+ // must be at least "/pr:node"
+ if (!xPathParts.hasNext() || !xPathParts.next().isEmpty() || !xPathParts.hasNext()) {
+ return null;
+ }
+
+ List<PathArgument> result = new ArrayList<>();
+ while (xPathParts.hasNext()) {
+ String xPathPartTrimmed = xPathParts.next().trim();
+
+ PathArgument pathArgument = toPathArgument(xPathPartTrimmed, element, schemaContext);
+ if (pathArgument != null) {
+ result.add(pathArgument);
+ }
+ }
+ return YangInstanceIdentifier.create(result);
+ }
+
+ public static Element serialize(final YangInstanceIdentifier id, final Element element) {
+ Preconditions.checkNotNull(id, "Variable should contain instance of instance identifier and can't be null");
+ Preconditions.checkNotNull(element, "DOM element can't be null");
+
+ final RandomPrefix prefixes = new RandomPrefix();
+ final String str = XmlUtils.encodeIdentifier(prefixes, id);
+
+ for (Entry<URI, String> e: prefixes.getPrefixes()) {
+ element.setAttribute("xmlns:" + e.getValue(), e.getKey().toString());
+ }
+ element.setTextContent(str);
+ return element;
+ }
+
+ private static String getIdAndPrefixAsStr(final String pathPart) {
+ int predicateStartIndex = pathPart.indexOf('[');
+ return predicateStartIndex == -1 ? pathPart : pathPart.substring(0, predicateStartIndex);
+ }
+
+ private static PathArgument toPathArgument(final String xPathArgument, final Element element, final SchemaContext schemaContext) {
+ final QName mainQName = toIdentity(xPathArgument, element, schemaContext);
+
+ // predicates
+ final Matcher matcher = PREDICATE_PATTERN.matcher(xPathArgument);
+ final Map<QName, Object> predicates = new HashMap<>();
+ QName currentQName = mainQName;
+
+ while (matcher.find()) {
+ final String predicateStr = matcher.group(1).trim();
+ final int indexOfEqualityMark = predicateStr.indexOf('=');
+ if (indexOfEqualityMark != -1) {
+ final Object predicateValue = toPredicateValue(predicateStr.substring(indexOfEqualityMark + 1));
+ if (predicateValue == null) {
+ return null;
+ }
+
+ if (predicateStr.charAt(0) != '.') {
+ // target is not a leaf-list
+ currentQName = toIdentity(predicateStr.substring(0, indexOfEqualityMark), element, schemaContext);
+ if (currentQName == null) {
+ return null;
+ }
+ }
+ predicates.put(currentQName, predicateValue);
+ }
+ }
+
+ if (predicates.isEmpty()) {
+ return new YangInstanceIdentifier.NodeIdentifier(mainQName);
+ } else {
+ return new YangInstanceIdentifier.NodeIdentifierWithPredicates(mainQName, predicates);
+ }
+
+ }
+
+ public static QName toIdentity(final String xPathArgument, final Element element, final SchemaContext schemaContext) {
+ final String xPathPartTrimmed = getIdAndPrefixAsStr(xPathArgument).trim();
+ final Iterator<String> it = COLON_SPLITTER.split(xPathPartTrimmed).iterator();
+
+ // Empty string
+ if (!it.hasNext()) {
+ return null;
+ }
+
+ final String prefix = it.next().trim();
+ if (prefix.isEmpty()) {
+ return null;
+ }
+
+ // it is not "prefix:value"
+ if (!it.hasNext()) {
+ return null;
+ }
+
+ final String identifier = it.next().trim();
+ if (identifier.isEmpty()) {
+ return null;
+ }
+
+ URI namespace = null;
+ String namespaceStr = null;
+ try {
+ namespaceStr = element.getAttribute("xmlns:"+prefix);
+ namespace = new URI(namespaceStr);
+ } catch (URISyntaxException e) {
+ throw new IllegalArgumentException("It wasn't possible to convert " + namespaceStr + " to URI object.");
+ } catch (NullPointerException e) {
+ throw new IllegalArgumentException("I wasn't possible to get namespace for prefix " + prefix);
+ }
+
+ Module module = schemaContext.findModuleByNamespaceAndRevision(namespace, null);
+ return QName.create(module.getQNameModule(), identifier);
+ }
+
+ private static String trimIfEndIs(final String str, final char end) {
+ final int l = str.length() - 1;
+ if (str.charAt(l) != end) {
+ return null;
+ }
+
+ return str.substring(1, l);
+ }
+
+ private static Object toPredicateValue(final String predicatedValue) {
+ final String predicatedValueTrimmed = predicatedValue.trim();
+ if (predicatedValue.isEmpty()) {
+ return null;
+ }
+ String updatedValue = null;
+ switch (predicatedValueTrimmed.charAt(0)) {
+ case '"':
+ updatedValue = trimIfEndIs(predicatedValueTrimmed, '"');
+ break;
+ case '\'':
+ updatedValue = trimIfEndIs(predicatedValueTrimmed, '\'');
+ break;
+ default:
+ updatedValue = predicatedValueTrimmed;
+ }
+ Iterator<String> it = AT_SPLITTER.split(updatedValue).iterator();
+ // Empty string
+ if (!it.hasNext()) {
+ return null;
+ }
+
+ final String value = it.next().trim();
+ if (value.isEmpty()) {
+ return null;
+ }
+
+ if (!it.hasNext()) {
+ return value;
+ }
+
+ final String type = it.next().trim();
+ if (type.isEmpty()) {
+ return value;
+ }
+ Object predicateObject = null;
+ try {
+ predicateObject = Class.forName(type).getConstructor(String.class).newInstance(value);
+ } catch (Exception e) {
+ logger.error("Could not convert to valid type of value", e);
+ }
+ return predicateObject;
+ }
+}
Code Review / controller.git / blobdiff