1 /*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 */
4 /*
5 * Licensed to the Apache Software Foundation (ASF) under one or more
6 * contributor license agreements. See the NOTICE file distributed with
7 * this work for additional information regarding copyright ownership.
8 * The ASF licenses this file to You under the Apache License, Version 2.0
9 * (the "License"); you may not use this file except in compliance with
10 * the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20
21 package com.sun.org.apache.xml.internal.utils;
22
23 import org.w3c.dom.Attr;
24 import org.w3c.dom.NamedNodeMap;
25 import org.w3c.dom.Node;
26
27 import org.xml.sax.Attributes;
28
29 /**
30 * Wraps a DOM attribute list in a SAX Attributes.
31 * @xsl.usage internal
32 */
33 public class AttList implements Attributes
34 {
35
36 /** List of attribute nodes */
37 NamedNodeMap m_attrs;
38
39 /** Index of last attribute node */
40 int m_lastIndex;
41
42 // JAXP Uses Xerces without setting the namespace processing to ON!
43 // DOM2Helper m_dh = new DOM2Helper();
44
45 /**
46 * Constructor AttList
47 *
48 *
49 * @param attrs List of attributes this will contain
50 * @param dh DOMHelper
51 */
52 public AttList(NamedNodeMap attrs)
53 {
54 m_attrs = attrs;
55 m_lastIndex = m_attrs.getLength() - 1;
56 }
57
58 /**
59 * Get the number of attribute nodes in the list
60 *
61 *
62 * @return number of attribute nodes
63 */
64 public int getLength()
65 {
66 return m_attrs.getLength();
67 }
68
69 /**
70 * Look up an attribute's Namespace URI by index.
71 *
72 * @param index The attribute index (zero-based).
73 * @return The Namespace URI, or the empty string if none
74 * is available, or null if the index is out of
75 * range.
76 */
77 public String getURI(int index)
78 {
79 String ns = DOM2Helper.getNamespaceOfNode(((Attr) m_attrs.item(index)));
80 if(null == ns)
81 ns = "";
82 return ns;
83 }
84
85 /**
86 * Look up an attribute's local name by index.
87 *
88 * @param index The attribute index (zero-based).
89 * @return The local name, or the empty string if Namespace
90 * processing is not being performed, or null
91 * if the index is out of range.
92 */
93 public String getLocalName(int index)
94 {
95 return DOM2Helper.getLocalNameOfNode(((Attr) m_attrs.item(index)));
96 }
97
98 /**
99 * Look up an attribute's qualified name by index.
100 *
101 *
102 * @param i The attribute index (zero-based).
103 *
104 * @return The attribute's qualified name
105 */
106 public String getQName(int i)
107 {
108 return ((Attr) m_attrs.item(i)).getName();
109 }
110
111 /**
112 * Get the attribute's node type by index
113 *
114 *
115 * @param i The attribute index (zero-based)
116 *
117 * @return the attribute's node type
118 */
119 public String getType(int i)
120 {
121 return "CDATA"; // for the moment
122 }
123
124 /**
125 * Get the attribute's node value by index
126 *
127 *
128 * @param i The attribute index (zero-based)
129 *
130 * @return the attribute's node value
131 */
132 public String getValue(int i)
133 {
134 return ((Attr) m_attrs.item(i)).getValue();
135 }
136
137 /**
138 * Get the attribute's node type by name
139 *
140 *
141 * @param name Attribute name
142 *
143 * @return the attribute's node type
144 */
145 public String getType(String name)
146 {
147 return "CDATA"; // for the moment
148 }
149
150 /**
151 * Look up an attribute's type by Namespace name.
152 *
153 * @param uri The Namespace URI, or the empty String if the
154 * name has no Namespace URI.
155 * @param localName The local name of the attribute.
156 * @return The attribute type as a string, or null if the
157 * attribute is not in the list or if Namespace
158 * processing is not being performed.
159 */
160 public String getType(String uri, String localName)
161 {
162 return "CDATA"; // for the moment
163 }
164
165 /**
166 * Look up an attribute's value by name.
167 *
168 *
169 * @param name The attribute node's name
170 *
171 * @return The attribute node's value
172 */
173 public String getValue(String name)
174 {
175 Attr attr = ((Attr) m_attrs.getNamedItem(name));
176 return (null != attr)
177 ? attr.getValue() : null;
178 }
179
180 /**
181 * Look up an attribute's value by Namespace name.
182 *
183 * @param uri The Namespace URI, or the empty String if the
184 * name has no Namespace URI.
185 * @param localName The local name of the attribute.
186 * @return The attribute value as a string, or null if the
187 * attribute is not in the list.
188 */
189 public String getValue(String uri, String localName)
190 {
191 Node a=m_attrs.getNamedItemNS(uri,localName);
192 return (a==null) ? null : a.getNodeValue();
193 }
194
195 /**
196 * Look up the index of an attribute by Namespace name.
197 *
198 * @param uri The Namespace URI, or the empty string if
199 * the name has no Namespace URI.
200 * @param localPart The attribute's local name.
201 * @return The index of the attribute, or -1 if it does not
202 * appear in the list.
203 */
204 public int getIndex(String uri, String localPart)
205 {
206 for(int i=m_attrs.getLength()-1;i>=0;--i)
207 {
208 Node a=m_attrs.item(i);
209 String u=a.getNamespaceURI();
210 if( (u==null ? uri==null : u.equals(uri))
211 &&
212 a.getLocalName().equals(localPart) )
213 return i;
214 }
215 return -1;
216 }
217
218 /**
219 * Look up the index of an attribute by raw XML 1.0 name.
220 *
221 * @param qName The qualified (prefixed) name.
222 * @return The index of the attribute, or -1 if it does not
223 * appear in the list.
224 */
225 public int getIndex(String qName)
226 {
227 for(int i=m_attrs.getLength()-1;i>=0;--i)
228 {
229 Node a=m_attrs.item(i);
230 if(a.getNodeName().equals(qName) )
231 return i;
232 }
233 return -1;
234 }
235 }