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1
57
58 package org.apache.soap.util.xml;
59
60 import java.io.*;
61 import org.w3c.dom.*;
62 import org.apache.soap.util.StringUtils;
63
64
75 public class DOMWriter
76 {
77
80 public static String  nodeToString(Node node)
81 {
82 StringWriter sw = new StringWriter();
83
84 serializeAsXML(node, sw);
85
86 return sw.toString();
87 }
88
89
92 public static void serializeAsXML(Node node, Writer writer)
93 {
94 print(node, new PrintWriter(writer));
95 }
96
97 private static void print(Node node, PrintWriter out)
98 {
99 if (node == null)
100 {
101 return;
102 }
103
104 boolean hasChildren = false;
105 int type = node.getNodeType();
106
107 switch (type)
108 {
109 case Node.DOCUMENT_NODE :
110 {
111 out.println("<?xml version=\"1.0\"?>");
112
113 NodeList children = node.getChildNodes();
114
115 if (children != null)
116 {
117 int numChildren = children.getLength();
118
119 for (int i = 0; i < numChildren; i++)
120 {
121 print(children.item(i), out);
122 }
123 }
124 break;
125 }
126
127 case Node.ELEMENT_NODE :
128 {
129 out.print('<' + node.getNodeName());
130
131 NamedNodeMap attrs = node.getAttributes();
132 int len = (attrs != null) ? attrs.getLength() : 0;
133
134 for (int i = 0; i < len; i++)
135 {
136 Attr attr = (Attr)attrs.item(i);
137
138 out.print(' ' + attr.getNodeName() +"=\"" +
139 normalize(attr.getValue()) + '\"');
140 }
141
142 NodeList children = node.getChildNodes();
143
144 if (children != null)
145 {
146 int numChildren = children.getLength();
147
148 hasChildren = (numChildren > 0);
149
150 if (hasChildren)
151 {
152 out.print('>');
153 }
154
155 for (int i = 0; i < numChildren; i++)
156 {
157 print(children.item(i), out);
158 }
159 }
160 else
161 {
162 hasChildren = false;
163 }
164
165 if (!hasChildren)
166 {
167 out.print("/>");
168 }
169 break;
170 }
171
172 case Node.ENTITY_REFERENCE_NODE :
173 {
174 out.print('&');
175 out.print(node.getNodeName());
176 out.print(';');
177 break;
178 }
179
180 case Node.CDATA_SECTION_NODE :
181 {
182 out.print("<![CDATA[");
183 out.print(node.getNodeValue());
184 out.print("]]>");
185 break;
186 }
187
188 case Node.TEXT_NODE :
189 {
190 out.print(normalize(node.getNodeValue()));
191 break;
192 }
193
194 case Node.COMMENT_NODE :
195 {
196 out.print("<!--");
197 out.print(node.getNodeValue());
198 out.print("-->");
199 break;
200 }
201
202 case Node.PROCESSING_INSTRUCTION_NODE :
203 {
204 out.print("<?");
205 out.print(node.getNodeName());
206
207 String data = node.getNodeValue();
208
209 if (data != null && data.length() > 0)
210 {
211 out.print(' ');
212 out.print(data);
213 }
214
215 out.println("?>");
216 break;
217 }
218 }
219
220 if (type == Node.ELEMENT_NODE && hasChildren == true)
221 {
222 out.print("</");
223 out.print(node.getNodeName());
224 out.print('>');
225 hasChildren = false;
226 }
227 }
228
229 private static String normalize(String s)
230 {
231 StringBuffer str = new StringBuffer ();
232 int len = (s != null) ? s.length() : 0;
233
234 for (int i = 0; i < len; i++)
235 {
236 char ch = s.charAt(i);
237
238 switch (ch)
239 {
240 case '<' :
241 {
242 str.append("<");
243 break;
244 }
245 case '>' :
246 {
247 str.append(">");
248 break;
249 }
250 case '&' :
251 {
252 str.append("&");
253 break;
254 }
255 case '"' :
256 {
257 str.append(""");
258 break;
259 }
260 case '\n' :
261 {
262 if (i > 0)
263 {
264 char lastChar = str.charAt(str.length() - 1);
265
266 if (lastChar != '\r')
267 {
268 str.append(StringUtils.lineSeparator);
269 }
270 else
271 {
272 str.append('\n');
273 }
274 }
275 else
276 {
277 str.append(StringUtils.lineSeparator);
278 }
279 break;
280 }
281 default :
282 {
283 str.append(ch);
284 }
285 }
286 }
287
288 return (str.toString());
289 }
290 }
291 |
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