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1
29
30 package com.caucho.xml2;
31
32 import com.caucho.vfs.WriteStream;
33
34 import javax.xml.XMLConstants  ;
35 import javax.xml.namespace.NamespaceContext ;
36 import javax.xml.namespace.QName ;
37 import java.io.IOException ;
38 import java.util.ArrayList ;
39 import java.util.HashMap ;
40 import java.util.Iterator ;
41 import java.util.Map ;
42
43
46 public class NamespaceContextImpl
47 {
48 private final HashMap <String ,NamespaceBinding> _bindings
50 = new HashMap <String ,NamespaceBinding>();
51
52 private ElementBinding []_stack = new ElementBinding[32];
54 private int _stackTop;
55
56 private NamespaceBinding _nullEltBinding;
57 private NamespaceBinding _nullAttrBinding;
58
59 private int _uniqueId = 0;
60 private int _version = 0;
61
62 NamespaceContextImpl()
63 {
64 _nullEltBinding = new NamespaceBinding(null, null, 0);
65 _nullAttrBinding = new NamespaceBinding(null, null, 0);
66
67 _stackTop = 1;
68 }
69
70
73 public void push(SaxIntern.Entry entry)
74 {
75 ElementBinding elt = _stack[_stackTop];
76
77 if (elt == null) {
78 elt = new ElementBinding();
79 _stack[_stackTop] = elt;
80 }
81
82 _stackTop++;
83
84 elt.setName(entry);
85 }
86
87
90 public void pop(SaxIntern.Entry entry)
91 {
92 ElementBinding eltBinding = _stack[--_stackTop];
93
94 if (eltBinding != null) {
95 ArrayList <Decl> oldBinding = eltBinding.getOldBindingList();
96
97 for (int i = 0; oldBinding != null && i < oldBinding.size(); i++) {
98 Decl decl = oldBinding.get(i);
99 NamespaceBinding binding = decl.getBinding();
100
101 _version++;
102
103 binding.setUri(decl.getOldUri());
104 binding.setVersion(_version);
105 }
106
107 eltBinding.clear();
108 }
109 }
110
111 public int getDepth()
112 {
113 return _stackTop - 1;
114 }
115
116
119 public void declare(String prefix, String uri)
120 {
121 NamespaceBinding binding = getElementNamespace(prefix);
122
123 ElementBinding eltBinding = _stack[_stackTop - 1];
124
125 if (eltBinding == null) {
126 eltBinding = new ElementBinding();
127
128 _stack[_stackTop - 1] = eltBinding;
129 }
130
131 eltBinding.addOldBinding(binding, prefix, binding.getUri(), uri);
132
133 _version++;
134 binding.setUri(uri);
135 binding.setVersion(_version);
136 }
137
138
142 public String declare(String uri)
143 {
144 String prefix = "ns"+ _uniqueId++;
145
146 declare(prefix, uri);
147
148 return prefix;
149 }
150
151
154 public String getUri(String prefix)
155 {
156 NamespaceBinding binding = _bindings.get(prefix);
157
158 if (binding != null)
159 return binding.getUri();
160 else
161 return null;
162 }
163
164 public String getNamespaceURI(String prefix)
165 {
166 NamespaceBinding binding = _bindings.get(prefix);
167
168 if (binding != null)
169 return binding.getUri();
170
171 String uri = null;
172
173 if (XMLConstants.XML_NS_PREFIX.equals(prefix))
174 uri = XMLConstants.XML_NS_URI;
175 else if (XMLConstants.XMLNS_ATTRIBUTE.equals(prefix))
176 uri = XMLConstants.XMLNS_ATTRIBUTE_NS_URI;
177
178 return uri;
179 }
180
181 public Iterator getPrefixes(String uri)
182 {
183 return null;
184 }
185
186 public String getUri(int i)
187 {
188 ElementBinding eltBinding = _stack[_stackTop - 1];
189
190 if (eltBinding != null) {
191 return eltBinding.getOldBindingList().get(i).getNewUri();
192 }
193 else
194 return null;
195 }
196
197 public String getPrefix(int i)
198 {
199 ElementBinding eltBinding = _stack[_stackTop - 1];
200
201 if (eltBinding != null) {
202 return eltBinding.getOldBindingList().get(i).getPrefix();
203 }
204
205 return null;
206 }
207
208 public int getNumDecls()
209 {
210 ElementBinding eltBinding = _stack[_stackTop - 1];
211
212 if (eltBinding != null)
213 return eltBinding.getOldBindingList().size();
214 else
215 return 0;
216 }
217
218 NamespaceBinding getElementNamespace(String prefix)
219 {
220 NamespaceBinding binding;
221
222 if (prefix == null)
223 binding = _nullEltBinding;
224 else
225 binding = _bindings.get(prefix);
226
227 if (binding != null)
228 return binding;
229 else {
230 binding = new NamespaceBinding(prefix, null, _version);
231
232 _bindings.put(prefix, binding);
233
234 return binding;
235 }
236 }
237
238 NamespaceBinding getAttributeNamespace(String prefix)
239 {
240 NamespaceBinding binding;
241
242 if (prefix == null)
243 binding = _nullAttrBinding;
244 else
245 binding = _bindings.get(prefix);
246
247 if (binding != null)
248 return binding;
249 else {
250 binding = new NamespaceBinding(prefix, null, _version);
251
252 _bindings.put(prefix, binding);
253
254 return binding;
255 }
256 }
257
258 static class ElementBinding
259 {
260 private SaxIntern.Entry _name;
261 private ArrayList <Decl> _declList;
262
263 public void setName(SaxIntern.Entry name)
264 {
265 _name = name;
266 }
267
268 public SaxIntern.Entry getName()
269 {
270 return _name;
271 }
272
273 public void addOldBinding(NamespaceBinding binding, String prefix,
274 String oldUri, String newUri)
275 {
276 if (_declList == null)
277 _declList = new ArrayList <Decl>();
278
279 _declList.add(new Decl(binding, prefix, oldUri, newUri));
280 }
281
282 public ArrayList <Decl> getOldBindingList()
283 {
284 return _declList;
285 }
286
287 public void clear()
288 {
289 _declList = null;
290 }
291 }
292
293 static class Decl {
294 private final NamespaceBinding _binding;
295 private final String _prefix;
296 private final String _oldUri;
297 private final String _newUri;
298
299 Decl(NamespaceBinding binding, String prefix,
300 String oldUri, String newUri)
301 {
302 _binding = binding;
303 _prefix = prefix;
304 _oldUri = oldUri;
305 _newUri = newUri;
306 }
307
308 NamespaceBinding getBinding()
309 {
310 return _binding;
311 }
312
313 String getPrefix()
314 {
315 return _prefix;
316 }
317
318 String getOldUri()
319 {
320 return _oldUri;
321 }
322
323 String getNewUri()
324 {
325 return _newUri;
326 }
327 }
328 }
329 |
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