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1
29
30 package com.caucho.xml.stream;
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 abstract class NamespaceContextImpl implements NamespaceContext
47 {
48 protected final ArrayList <ElementBinding> _stack
50 = new ArrayList <ElementBinding>();
51
52 protected int _version = 0;
53
54 NamespaceContextImpl()
55 {
56 _stack.add(null);
57 }
58
59
62 public void push()
63 {
64 _stack.add(null);
65 }
66
67
70 public void pop()
71 {
72 ElementBinding eltBinding = _stack.remove(_stack.size() - 1);
73
74 if (eltBinding != null) {
75 ArrayList <Decl> oldBinding = eltBinding.getOldBindingList();
76
77 for (int i = 0; oldBinding != null && i < oldBinding.size(); i++) {
78 Decl decl = oldBinding.get(i);
79 NamespaceBinding binding = decl.getBinding();
80
81 _version++;
82
83 binding.setUri(decl.getOldUri());
84 binding.setVersion(_version);
85 }
86
87 eltBinding.clear();
88 }
89 }
90
91 public void setElementName(QName name)
92 {
93 ElementBinding eltBinding = _stack.get(_stack.size() - 1);
94
95 if (eltBinding == null) {
96 eltBinding = new ElementBinding();
97
98 _stack.set(_stack.size() - 1, eltBinding);
99 }
100
101 eltBinding.setName(name);
102 }
103
104 public QName getElementName()
105 {
106 ElementBinding eltBinding = _stack.get(_stack.size() - 1);
107
108 if (eltBinding != null)
109 return eltBinding.getName();
110 else
111 return null;
112 }
113
114
117 public abstract void declare(String prefix, String uri);
118
119 public String getNamespaceURI(String prefix)
120 {
121 throw new UnsupportedOperationException ();
122 }
123
124 public String getPrefix(String uri)
125 {
126 throw new UnsupportedOperationException ();
127 }
128
129 public Iterator getPrefixes(String uri)
130 {
131 throw new UnsupportedOperationException ();
132 }
133
134 static class ElementBinding
135 {
136 private QName _name;
137 private ArrayList <Decl> _declList;
138
139 public void setName(QName name)
140 {
141 _name = name;
142 }
143
144 public void clear()
145 {
146 _declList = null;
147 }
148
149 public QName getName()
150 {
151 return _name;
152 }
153
154 public void addOldBinding(NamespaceBinding binding, String prefix,
155 String oldUri, String newUri)
156 {
157 if (_declList == null)
158 _declList = new ArrayList <Decl>();
159
160 _declList.add(new Decl(binding, prefix, oldUri, newUri));
161 }
162
163 public ArrayList <Decl> getOldBindingList()
164 {
165 return _declList;
166 }
167 }
168
169 static class Decl {
170 private final NamespaceBinding _binding;
171 private final String _prefix;
172 private final String _oldUri;
173 private final String _newUri;
174
175 Decl(NamespaceBinding binding, String prefix,
176 String oldUri, String newUri)
177 {
178 _binding = binding;
179 _prefix = prefix;
180 _oldUri = oldUri;
181 _newUri = newUri;
182 }
183
184 NamespaceBinding getBinding()
185 {
186 return _binding;
187 }
188
189 String getPrefix()
190 {
191 return _prefix;
192 }
193
194 String getOldUri()
195 {
196 return _oldUri;
197 }
198
199 String getNewUri()
200 {
201 return _newUri;
202 }
203 }
204
205 static class PrefixIterator
206 {
207 private ElementBinding _eltBinding;
208 private int _index = 0;
209
210 PrefixIterator(NamespaceContextImpl context, ElementBinding eltBinding)
211 {
212 _eltBinding = eltBinding;
213 }
214
215 public void remove()
216 {
217 throw new RuntimeException ("not supported");
218 }
219
220 public boolean hasNext()
221 {
222 if (_eltBinding == null)
223 return false;
224
225 return _index < _eltBinding.getOldBindingList().size();
226 }
227
228 public Object next()
229 {
230 if (_eltBinding == null)
231 return null;
232
233 ArrayList <Decl> oldBindingList = _eltBinding.getOldBindingList();
234
235 if (_index < oldBindingList.size())
236 return oldBindingList.get(_index++).getPrefix();
237
238 return null;
239 }
240 }
241 }
242 |
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