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1
23
24 package org.apache.webdav.lib.util;
25
26 import org.w3c.dom.Document  ;
27 import org.w3c.dom.Node ;
28 import org.w3c.dom.NodeList ;
29 import org.w3c.dom.NamedNodeMap ;
30 import org.xml.sax.SAXException ;
31
32 import javax.xml.parsers.DocumentBuilderFactory ;
33 import javax.xml.parsers.DocumentBuilder ;
34 import javax.xml.parsers.ParserConfigurationException ;
35 import java.io.*;
36 import org.xml.sax.InputSource ;
37
38
39
40 import java.util.StringTokenizer ;
41
42
45 public class XMLDebugOutputer {
46
47
49 private final static String INDENT = " ";
51 private int tabWidth = 3;
52
53
54
56 private boolean debug = false;
58
59
60 private DocumentBuilderFactory dbf=null;
62 private DocumentBuilder db=null;
63
64
65
67
70 public XMLDebugOutputer() {
71
72 try {
73 dbf=DocumentBuilderFactory.newInstance();
74 db =dbf.newDocumentBuilder();
75
76 } catch (ParserConfigurationException e) {
77 }
78
79
81 };
82
83
85
89 public void print(Document doc) {
90
91 if (debug) {
92 Node root = doc.getDocumentElement();
93
94 dispatchNode(root, 0);
95 }
96 }
97
98
102 public void print(String xmlString) {
103
104 if (debug) {
105 try {
106 Document doc = db.parse(new InputSource (new StringReader(xmlString)));
107 print(doc);
108
109 } catch (SAXException e) {
110 } catch (IOException e) {
111 }
112 }
113
114
115 }
116
117
121 public void setDebug(boolean debug) {
122 this.debug = debug;
123 }
124
125
126
128
129
130 private void dispatchNode(Node node, int level) {
131 switch (node.getNodeType()) {
132 case Node.CDATA_SECTION_NODE :
133 printCDATANode(node, level);
134 break;
135
136 case Node.COMMENT_NODE :
137 printCommentNode(node, level);
138 break;
139
140 case Node.TEXT_NODE :
141 printTextNode(node, level);
142 break;
143
144 case Node.ELEMENT_NODE :
145 printElementNode(node, level);
146 break;
147
148 default :
149 break;
150 }
151 }
152
153 private void printCDATANode(Node node, int level) {
154 System.out.print(INDENT.substring(0, level * tabWidth));
155 System.out.println("<![CDATA[");
156
157 indentBlock(node.getNodeValue(), level + 1);
158
159 System.out.print(INDENT.substring(0, level * tabWidth));
160 System.out.println("]]>");
161 }
162
163 private void printTextNode(Node node, int level) {
164 indentBlock(node.getNodeValue(), level + 1);
165 }
166
167 private void printCommentNode(Node node, int level) {
168 System.out.print(INDENT.substring(0, level * tabWidth));
169 System.out.println("<!-- ");
170 indentBlock(node.getNodeValue(), level + 1);
171 System.out.print(INDENT.substring(0, level * tabWidth));
172 System.out.println(" -->");
173 }
174
175 private void printElementNode(Node node, int level) {
176 String name = node.getNodeName();
177 System.out.print(INDENT.substring(0, level * tabWidth));
178 System.out.print("<");
179 System.out.print(name);
180
181 NamedNodeMap attributes = node.getAttributes();
182 for (int i = 0; attributes != null && i < attributes.getLength(); i++) {
183 if (attributes.getLength() > 1) {
184 System.out.println();
185 System.out.print(INDENT.substring(0, (2 + level) * tabWidth));
186 } else {
187 System.out.print(" ");
188 }
189
190 Node attribute = attributes.item(i);
191 System.out.print(attribute.getNodeName());
192 System.out.print("=\"");
193 System.out.print(attribute.getNodeValue());
194 System.out.print("\"");
195 }
196 System.out.println(">");
197
198 if (attributes.getLength() > 1) {
200 System.out.println();
201 }
202
203 if (node.hasChildNodes()) {
204 NodeList children = node.getChildNodes();
205 for (int i = 0; i < children.getLength(); i++) {
206 dispatchNode(children.item(i), level + 1);
208 }
209 }
210
211 System.out.print(INDENT.substring(0, level * tabWidth));
212 System.out.print("</");
213 System.out.print(name);
214 System.out.println(">");
215 }
216
217 private void indentBlock(String block, int level) {
218 StringTokenizer linetok = new StringTokenizer (block.replace('\n', ' '));
219 int pos = level * tabWidth;
220
221 if (linetok.countTokens() > 0) {
222 System.out.print(INDENT.substring(0, level * tabWidth));
223 }
224
225 while (linetok.hasMoreTokens()) {
226 String token = linetok.nextToken();
227 pos += (token.length() + 1);
228 if (pos < 80 && token.length() < (80 - (level * tabWidth))) {
229 if (linetok.countTokens() > 0) {
230 System.out.print(token);
231 System.out.print(" ");
232 } else {
233 System.out.println(token);
234 }
235 } else {
236 System.out.println(token);
237 if (linetok.countTokens() > 0) {
238 System.out.print(INDENT.substring(0, level * tabWidth));
239 }
240 pos = level * tabWidth;
241 }
242 }
243 }
244
245
246 }
247 |
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