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.restconf.common.util;
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.restconf.common.util.IdentityValuesDTO.IdentityValue;
16 import org.opendaylight.restconf.common.util.IdentityValuesDTO.Predicate;
17 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
19 public final class RestUtil {
21 // FIXME: BUG-1275: this is code duplicates data.impl.codec
23 public static final String SQUOTE = "'";
24 public static final String DQUOTE = "\"";
25 private static final Pattern PREDICATE_PATTERN = Pattern.compile("\\[(.*?)\\]");
27 public static TypeDefinition<?> resolveBaseTypeFrom(final TypeDefinition<?> type) {
28 TypeDefinition<?> superType = type;
29 while (superType.getBaseType() != null) {
30 superType = superType.getBaseType();
35 public static IdentityValuesDTO asInstanceIdentifier(final String value, final PrefixesMaping prefixMap) {
36 final String valueTrimmed = value.trim();
37 if (!valueTrimmed.startsWith("/")) {
40 final String[] xPathParts = valueTrimmed.split("/");
41 if (xPathParts.length < 2) { // must be at least "/pr:node"
44 final IdentityValuesDTO identityValuesDTO = new IdentityValuesDTO(value);
45 for (int i = 1; i < xPathParts.length; i++) {
46 final String xPathPartTrimmed = xPathParts[i].trim();
48 final String xPathPartStr = getIdAndPrefixAsStr(xPathPartTrimmed);
49 final IdentityValue identityValue = toIdentity(xPathPartStr, prefixMap);
50 if (identityValue == null) {
54 final List<Predicate> predicates = toPredicates(xPathPartTrimmed, prefixMap);
55 if (predicates == null) {
58 identityValue.setPredicates(predicates);
60 identityValuesDTO.add(identityValue);
62 return identityValuesDTO.getValuesWithNamespaces().isEmpty() ? null : identityValuesDTO;
65 private static String getIdAndPrefixAsStr(final String pathPart) {
66 final int predicateStartIndex = pathPart.indexOf("[");
67 return predicateStartIndex == -1 ? pathPart : pathPart.substring(0, predicateStartIndex);
70 private static IdentityValue toIdentity(final String xpathPart, final PrefixesMaping prefixMap) {
71 final String xPathPartTrimmed = xpathPart.trim();
72 if (xPathPartTrimmed.isEmpty()) {
75 final String[] prefixAndIdentifier = xPathPartTrimmed.split(":");
76 // it is not "prefix:value"
77 if (prefixAndIdentifier.length != 2) {
80 final String prefix = prefixAndIdentifier[0].trim();
81 final String identifier = prefixAndIdentifier[1].trim();
82 if (prefix.isEmpty() || identifier.isEmpty()) {
85 final String namespace = prefixMap.getNamespace(prefix);
86 return new IdentityValue(namespace, identifier);
89 private static List<Predicate> toPredicates(final String predicatesStr, final PrefixesMaping prefixMap) {
90 final List<Predicate> result = new ArrayList<>();
91 final List<String> predicates = new ArrayList<>();
92 final Matcher matcher = PREDICATE_PATTERN.matcher(predicatesStr);
93 while (matcher.find()) {
94 predicates.add(matcher.group(1).trim());
96 for (final String predicate : predicates) {
97 final int indexOfEqualityMark = predicate.indexOf("=");
98 if (indexOfEqualityMark != -1) {
99 final String predicateValue = toPredicateValue(predicate.substring(indexOfEqualityMark + 1));
100 if (predicate.startsWith(".")) { // it is leaf-list
101 if (predicateValue == null) {
104 result.add(new Predicate(null, predicateValue));
106 final IdentityValue identityValue =
107 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 final 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 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) {