+++ /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();
- logger.debug("Instance identifier derserialize: splitting the text {} with Slash to find path arguments", valueTrimmed);
- final Iterator<String> xPathParts = SLASH_SPLITTER.split(valueTrimmed).iterator();
-
- // must be at least "/pr:node"
- if (!xPathParts.hasNext() || !xPathParts.next().isEmpty() || !xPathParts.hasNext()) {
- logger.debug("Instance identifier derserialize: No path argument found for element.");
- 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;
- }
- }
- logger.debug("Instance identifier derserialize: finding predicates of node {}", predicateValue);
- 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) {
- logger.debug("Instance identifier derserialize: converting the predicate vstring to object {}", 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 {
- logger.debug("Instance identifier derserialize: converting the predicate value {{}}to correct object type {{}}", value, type);
- 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