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1
17 package org.apache.servicemix.jbi.jaxp;
18
19
23 import java.util.ArrayList  ;
24
25 import javax.xml.namespace.NamespaceContext ;
26 import javax.xml.namespace.QName ;
27 import javax.xml.stream.XMLStreamException;
28
29 import org.w3c.dom.Attr ;
30 import org.w3c.dom.CDATASection ;
31 import org.w3c.dom.Comment ;
32 import org.w3c.dom.Document ;
33 import org.w3c.dom.Element ;
34 import org.w3c.dom.EntityReference ;
35 import org.w3c.dom.NamedNodeMap ;
36 import org.w3c.dom.Node ;
37 import org.w3c.dom.Text ;
38
39 public class W3CDOMStreamReader extends DOMStreamReader {
40 private Node content;
41
42 private Document document;
43
44 private W3CNamespaceContext context;
45
46
49 public W3CDOMStreamReader(Element element) {
50 super(new ElementFrame(element, null));
51
52 this.document = element.getOwnerDocument();
53 }
54
55
60 public Document getDocument() {
61 return document;
62 }
63
64
68 protected void newFrame(ElementFrame frame) {
69 Element element = getCurrentElement();
70 frame.uris = new ArrayList ();
71 frame.prefixes = new ArrayList ();
72 frame.attributes = new ArrayList ();
73
74 if (context == null)
75 context = new W3CNamespaceContext();
76
77 context.setElement(element);
78
79 NamedNodeMap nodes = element.getAttributes();
80
81 String nsURI = element.getNamespaceURI();
82 String ePrefix = element.getPrefix();
83 if (ePrefix == null) {
84 ePrefix = "";
85 }
86
87 for (int i = 0; i < nodes.getLength(); i++) {
88 Node node = nodes.item(i);
89 String prefix = node.getPrefix();
90 String localName = node.getLocalName();
91 String value = node.getNodeValue();
92 String name = node.getNodeName();
93 String uri = node.getNamespaceURI();
94
95 if (prefix == null)
96 prefix = "";
97
98 if (name != null && name.equals("xmlns")) {
99 frame.uris.add(value);
100 frame.prefixes.add("");
101 } else if (prefix.length() > 0 && prefix.equals("xmlns")) {
102 frame.uris.add(value);
103 frame.prefixes.add(localName);
104 } else if (name.startsWith("xmlns:")) {
105 prefix = name.substring(6);
106 frame.uris.add(value);
107 frame.prefixes.add(prefix);
108 } else {
109 frame.attributes.add(node);
110 }
111 }
112 }
113
114 protected void endElement() {
115 super.endElement();
116 }
117
118 Element getCurrentElement() {
119 return (Element ) getCurrentFrame().element;
120 }
121
122 protected ElementFrame getChildFrame(int currentChild) {
123 return new ElementFrame(getCurrentElement().getChildNodes().item(currentChild), getCurrentFrame());
124 }
125
126 protected int getChildCount() {
127 return getCurrentElement().getChildNodes().getLength();
128 }
129
130 protected int moveToChild(int currentChild) {
131 this.content = getCurrentElement().getChildNodes().item(currentChild);
132
133 if (content instanceof Text )
134 return CHARACTERS;
135 else if (content instanceof Element )
136 return START_ELEMENT;
137 else if (content instanceof CDATASection )
138 return CDATA;
139 else if (content instanceof Comment )
140 return CHARACTERS;
141 else if (content instanceof EntityReference )
142 return ENTITY_REFERENCE;
143
144 throw new IllegalStateException ();
145 }
146
147 public String getElementText() throws XMLStreamException {
148 return getText();
149 }
150
151 public String getNamespaceURI(String prefix) {
152 ElementFrame frame = getCurrentFrame();
153
154 while (null != frame) {
155 int index = frame.prefixes.indexOf(prefix);
156 if (index != -1) {
157 return (String ) frame.uris.get(index);
158 }
159
160 frame = frame.parent;
161 }
162
163 return null;
164 }
165
166 public String getAttributeValue(String ns, String local) {
167 if (ns == null || ns.equals(""))
168 return getCurrentElement().getAttribute(local);
169 else
170 return getCurrentElement().getAttributeNS(ns, local);
171 }
172
173 public int getAttributeCount() {
174 return getCurrentFrame().attributes.size();
175 }
176
177 Attr getAttribute(int i) {
178 return (Attr ) getCurrentFrame().attributes.get(i);
179 }
180
181 private String getLocalName(Attr attr) {
182
183 String name = attr.getLocalName();
184 if (name == null) {
185 name = attr.getNodeName();
186 }
187 return name;
188 }
189
190 public QName getAttributeName(int i) {
191 Attr at = getAttribute(i);
192
193 String prefix = at.getPrefix();
194 String ln = getLocalName(at);
195 String ns = at.getNamespaceURI();
197
198 if (prefix == null) {
199 return new QName (ns, ln);
200 } else {
201 return new QName (ns, ln, prefix);
202 }
203 }
204
205 public String getAttributeNamespace(int i) {
206 return getAttribute(i).getNamespaceURI();
207 }
208
209 public String getAttributeLocalName(int i) {
210 Attr attr = getAttribute(i);
211 String name = getLocalName(attr);
212 return name;
213 }
214
215 public String getAttributePrefix(int i) {
216 return getAttribute(i).getPrefix();
217 }
218
219 public String getAttributeType(int i) {
220 return toStaxType(getAttribute(i).getNodeType());
221 }
222
223 public static String toStaxType(short jdom) {
224 switch (jdom) {
225 default:
226 return null;
227 }
228 }
229
230 public String getAttributeValue(int i) {
231 return getAttribute(i).getValue();
232 }
233
234 public boolean isAttributeSpecified(int i) {
235 return getAttribute(i).getValue() != null;
236 }
237
238 public int getNamespaceCount() {
239 return getCurrentFrame().prefixes.size();
240 }
241
242 public String getNamespacePrefix(int i) {
243 return (String ) getCurrentFrame().prefixes.get(i);
244 }
245
246 public String getNamespaceURI(int i) {
247 return (String ) getCurrentFrame().uris.get(i);
248 }
249
250 public NamespaceContext getNamespaceContext() {
251 return context;
252 }
253
254 public String getText() {
255 Node node = getCurrentElement().getChildNodes().item(getCurrentFrame().currentChild);
256 return node.getNodeValue();
257 }
258
259 public char[] getTextCharacters() {
260 return getText().toCharArray();
261 }
262
263 public int getTextStart() {
264 return 0;
265 }
266
267 public int getTextLength() {
268 return getText().length();
269 }
270
271 public String getEncoding() {
272 return null;
273 }
274
275 public QName getName() {
276 Element el = getCurrentElement();
277
278 String prefix = getPrefix();
279 String ln = getLocalName();
280
281 if (prefix == null) {
282 return new QName (el.getNamespaceURI(), ln);
283 } else {
284 return new QName (el.getNamespaceURI(), ln, prefix);
285 }
286 }
287
288 public String getLocalName() {
289 String name = getCurrentElement().getLocalName();
290 if (name == null) {
292 name = getCurrentElement().getNodeName();
293 }
294 return name;
295 }
296
297 public String getNamespaceURI() {
298 return getCurrentElement().getNamespaceURI();
299 }
300
301 public String getPrefix() {
302 String prefix = getCurrentElement().getPrefix();
303 if (prefix == null) {
304 prefix = "";
305 }
306 return prefix;
307 }
308
309 public String getPITarget() {
310 throw new UnsupportedOperationException ();
311 }
312
313 public String getPIData() {
314 throw new UnsupportedOperationException ();
315 }
316 }
317 |
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