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;
15 import javax.xml.stream.events.StartElement;
17 import org.opendaylight.controller.sal.restconf.impl.IdentityValuesDTO;
18 import org.opendaylight.controller.sal.restconf.impl.IdentityValuesDTO.IdentityValue;
19 import org.opendaylight.controller.sal.restconf.impl.IdentityValuesDTO.Predicate;
20 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
22 public final class RestUtil {
24 // FIXME: BUG-1275: this is code duplicates data.impl.codec
26 public static final String SQUOTE = "'";
27 public static final String DQUOTE = "\"";
28 private static final Pattern PREDICATE_PATTERN = Pattern.compile("\\[(.*?)\\]");
30 public final static TypeDefinition<?> resolveBaseTypeFrom(final TypeDefinition<?> type) {
31 TypeDefinition<?> superType = type;
32 while (superType.getBaseType() != null) {
33 superType = superType.getBaseType();
38 public static IdentityValuesDTO asInstanceIdentifier(final String value, final PrefixesMaping prefixMap) {
39 String valueTrimmed = value.trim();
40 if (!valueTrimmed.startsWith("/")) {
43 String[] xPathParts = valueTrimmed.split("/");
44 if (xPathParts.length < 2) { // must be at least "/pr:node"
47 IdentityValuesDTO identityValuesDTO = new IdentityValuesDTO(value);
48 for (int i = 1; i < xPathParts.length; i++) {
49 String xPathPartTrimmed = xPathParts[i].trim();
51 String xPathPartStr = getIdAndPrefixAsStr(xPathPartTrimmed);
52 IdentityValue identityValue = toIdentity(xPathPartStr, prefixMap);
53 if (identityValue == null) {
57 List<Predicate> predicates = toPredicates(xPathPartTrimmed, prefixMap);
58 if (predicates == null) {
61 identityValue.setPredicates(predicates);
63 identityValuesDTO.add(identityValue);
65 return identityValuesDTO.getValuesWithNamespaces().isEmpty() ? null : identityValuesDTO;
68 private static String getIdAndPrefixAsStr(final String pathPart) {
69 int predicateStartIndex = pathPart.indexOf("[");
70 return predicateStartIndex == -1 ? pathPart : pathPart.substring(0, predicateStartIndex);
73 private static IdentityValue toIdentity(final String xPathPart, final PrefixesMaping prefixMap) {
74 String xPathPartTrimmed = xPathPart.trim();
75 if (xPathPartTrimmed.isEmpty()) {
78 String[] prefixAndIdentifier = xPathPartTrimmed.split(":");
79 // it is not "prefix:value"
80 if (prefixAndIdentifier.length != 2) {
83 String prefix = prefixAndIdentifier[0].trim();
84 String identifier = prefixAndIdentifier[1].trim();
85 if (prefix.isEmpty() || identifier.isEmpty()) {
88 String namespace = prefixMap.getNamespace(prefix);
89 return new IdentityValue(namespace, identifier, namespace.equals(prefix) ? null : prefix);
92 private static List<Predicate> toPredicates(final String predicatesStr, final PrefixesMaping prefixMap) {
93 List<Predicate> result = new ArrayList<>();
94 List<String> predicates = new ArrayList<>();
95 Matcher matcher = PREDICATE_PATTERN.matcher(predicatesStr);
96 while (matcher.find()) {
97 predicates.add(matcher.group(1).trim());
99 for (String predicate : predicates) {
100 int indexOfEqualityMark = predicate.indexOf("=");
101 if (indexOfEqualityMark != -1) {
102 String predicateValue = toPredicateValue(predicate.substring(indexOfEqualityMark + 1));
103 if (predicate.startsWith(".")) { // it is leaf-list
104 if (predicateValue == null) {
107 result.add(new Predicate(null, predicateValue));
109 IdentityValue identityValue = toIdentity(predicate.substring(0, indexOfEqualityMark),
111 if (identityValue == null || predicateValue == null) {
114 result.add(new Predicate(identityValue, predicateValue));
121 private static String toPredicateValue(final String predicatedValue) {
122 String predicatedValueTrimmed = predicatedValue.trim();
123 if ((predicatedValueTrimmed.startsWith(DQUOTE) || predicatedValueTrimmed.startsWith(SQUOTE))
124 && (predicatedValueTrimmed.endsWith(DQUOTE) || predicatedValueTrimmed.endsWith(SQUOTE))) {
125 return predicatedValueTrimmed.substring(1, predicatedValueTrimmed.length() - 1);
130 public interface PrefixesMaping {
131 public String getNamespace(String prefix);
134 public static class PrefixMapingFromXml implements PrefixesMaping {
135 StartElement startElement = null;
137 public PrefixMapingFromXml(final StartElement startElement) {
138 this.startElement = startElement;
142 public String getNamespace(final String prefix) {
143 return startElement.getNamespaceContext().getNamespaceURI(prefix);
147 public static class PrefixMapingFromJson implements PrefixesMaping {
150 public String getNamespace(final String prefix) {