2 * Copyright (c) 2014 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.controller.sal.rest.impl;
10 import java.util.ArrayList;
11 import java.util.List;
12 import java.util.regex.Matcher;
13 import java.util.regex.Pattern;
14 import javax.xml.stream.events.StartElement;
15 import org.opendaylight.controller.sal.restconf.impl.IdentityValuesDTO;
16 import org.opendaylight.controller.sal.restconf.impl.IdentityValuesDTO.IdentityValue;
17 import org.opendaylight.controller.sal.restconf.impl.IdentityValuesDTO.Predicate;
18 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
20 public final class RestUtil {
22 // FIXME: BUG-1275: this is code duplicates data.impl.codec
24 public static final String SQUOTE = "'";
25 public static final String DQUOTE = "\"";
26 private static final Pattern PREDICATE_PATTERN = Pattern.compile("\\[(.*?)\\]");
28 public final static TypeDefinition<?> resolveBaseTypeFrom(final TypeDefinition<?> type) {
29 TypeDefinition<?> superType = type;
30 while (superType.getBaseType() != null) {
31 superType = superType.getBaseType();
36 public static IdentityValuesDTO asInstanceIdentifier(final String value, final PrefixesMaping prefixMap) {
37 String valueTrimmed = value.trim();
38 if (!valueTrimmed.startsWith("/")) {
41 String[] xPathParts = valueTrimmed.split("/");
42 if (xPathParts.length < 2) { // must be at least "/pr:node"
45 IdentityValuesDTO identityValuesDTO = new IdentityValuesDTO(value);
46 for (int i = 1; i < xPathParts.length; i++) {
47 String xPathPartTrimmed = xPathParts[i].trim();
49 String xPathPartStr = getIdAndPrefixAsStr(xPathPartTrimmed);
50 IdentityValue identityValue = toIdentity(xPathPartStr, prefixMap);
51 if (identityValue == null) {
55 List<Predicate> predicates = toPredicates(xPathPartTrimmed, prefixMap);
56 if (predicates == null) {
59 identityValue.setPredicates(predicates);
61 identityValuesDTO.add(identityValue);
63 return identityValuesDTO.getValuesWithNamespaces().isEmpty() ? null : identityValuesDTO;
66 private static String getIdAndPrefixAsStr(final String pathPart) {
67 int predicateStartIndex = pathPart.indexOf("[");
68 return predicateStartIndex == -1 ? pathPart : pathPart.substring(0, predicateStartIndex);
71 private static IdentityValue toIdentity(final String xPathPart, final PrefixesMaping prefixMap) {
72 String xPathPartTrimmed = xPathPart.trim();
73 if (xPathPartTrimmed.isEmpty()) {
76 String[] prefixAndIdentifier = xPathPartTrimmed.split(":");
77 // it is not "prefix:value"
78 if (prefixAndIdentifier.length != 2) {
81 String prefix = prefixAndIdentifier[0].trim();
82 String identifier = prefixAndIdentifier[1].trim();
83 if (prefix.isEmpty() || identifier.isEmpty()) {
86 String namespace = prefixMap.getNamespace(prefix);
87 return new IdentityValue(namespace, identifier, namespace.equals(prefix) ? null : prefix);
90 private static List<Predicate> toPredicates(final String predicatesStr, final PrefixesMaping prefixMap) {
91 List<Predicate> result = new ArrayList<>();
92 List<String> predicates = new ArrayList<>();
93 Matcher matcher = PREDICATE_PATTERN.matcher(predicatesStr);
94 while (matcher.find()) {
95 predicates.add(matcher.group(1).trim());
97 for (String predicate : predicates) {
98 int indexOfEqualityMark = predicate.indexOf("=");
99 if (indexOfEqualityMark != -1) {
100 String predicateValue = toPredicateValue(predicate.substring(indexOfEqualityMark + 1));
101 if (predicate.startsWith(".")) { // it is leaf-list
102 if (predicateValue == null) {
105 result.add(new Predicate(null, predicateValue));
107 IdentityValue identityValue = toIdentity(predicate.substring(0, indexOfEqualityMark), prefixMap);
108 if (identityValue == null || predicateValue == null) {
111 result.add(new Predicate(identityValue, predicateValue));
118 private static String toPredicateValue(final String predicatedValue) {
119 String predicatedValueTrimmed = predicatedValue.trim();
120 if ((predicatedValueTrimmed.startsWith(DQUOTE) || predicatedValueTrimmed.startsWith(SQUOTE))
121 && (predicatedValueTrimmed.endsWith(DQUOTE) || predicatedValueTrimmed.endsWith(SQUOTE))) {
122 return predicatedValueTrimmed.substring(1, predicatedValueTrimmed.length() - 1);
127 public interface PrefixesMaping {
128 public String getNamespace(String prefix);
131 public static class PrefixMapingFromXml implements PrefixesMaping {
132 StartElement startElement = null;
134 public PrefixMapingFromXml(final StartElement startElement) {
135 this.startElement = startElement;
139 public String getNamespace(final String prefix) {
140 return startElement.getNamespaceContext().getNamespaceURI(prefix);
144 public static class PrefixMapingFromJson implements PrefixesMaping {
147 public String getNamespace(final String prefix) {