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1
6
7 package com.quikj.application.web.talk.feature.proactive.messaging;
8
9 import javax.xml.parsers.*;
11 import org.xml.sax.*;
12 import org.w3c.dom.*;
13
14 import net.n3.nanoxml.*;
16
17 import java.io.*;
18
19 import com.quikj.application.web.talk.messaging.*;
20
24 public class ProactiveMessageParser
25 {
26 private static int parserType = TalkMessageParser.DOM_PARSER;
27 private String  errorMessage = "";
28 private XMLParserDOM domParser = null;
29 private XMLParserNANO nanoParser = null;
30 private ProactiveMessageInterface message = null;
31
32 public ProactiveMessageParser(DocumentBuilder builder)
34 throws AceMessageException
35 {
36 if (TalkMessageParser.getParserType() != TalkMessageParser.DOM_PARSER)
37 {
38 throw new AceMessageException("You can invoke this constructor only for a DOM parser");
39 }
40
41 parserType = TalkMessageParser.DOM_PARSER;
42 domParser = new XMLParserDOM(builder);
43 }
44
45 public ProactiveMessageParser()
47 throws ClassNotFoundException , InstantiationException , IllegalAccessException , AceMessageException
48 {
49 if (TalkMessageParser.getParserType() != TalkMessageParser.NANOXML_PARSER)
50 {
51 throw new AceMessageException("You can invoke this constructor only for a NANOXML parser");
52 }
53
54 nanoParser = new XMLParserNANO();
55 parserType = TalkMessageParser.NANOXML_PARSER;
56 }
57
58
62 public java.lang.String getErrorMessage()
63 {
64 return errorMessage;
65 }
66
67
71 public void setErrorMessage(java.lang.String errorMessage)
72 {
73 this.errorMessage = errorMessage;
74 }
75
76 public boolean parse(String body)
77 {
78 message = null;
79
80 Object root_element = null;
81 String node_name = null;
82
83 if (parserType == TalkMessageParser.DOM_PARSER)
84 {
85 if (domParser.parse(body) == false)
86 {
87 return false;
88 }
89
90 root_element = domParser.getRootElement();
91 node_name = domParser.getNodeName();
92 }
93 else {
95 if (nanoParser.parse(body) == false)
96 {
97 return false;
98 }
99
100 root_element = nanoParser.getRootElement();
101 node_name = nanoParser.getNodeName();
102 }
103
104 if (node_name.equals("proactive-notification") == true)
105 {
106 ProactiveNotificationMessage m = new ProactiveNotificationMessage();
107 if (m.parse(root_element) == false)
108 {
109 errorMessage = m.getErrorMessage();
110 return false;
111 }
112
113 message = m;
114 }
115 else if (node_name.equals("call-request") == true)
116 {
117 CallRequestMessage m = new CallRequestMessage();
118 if (m.parse(root_element) == false)
119 {
120 errorMessage = m.getErrorMessage();
121 return false;
122 }
123
124 message = m;
125 }
126 else if (node_name.equals("call-response") == true)
127 {
128 CallResponseMessage m = new CallResponseMessage();
129 if (m.parse(root_element) == false)
130 {
131 errorMessage = m.getErrorMessage();
132 return false;
133 }
134
135 message = m;
136 }
137 else if (node_name.equals("info-request") == true)
138 {
139 InformationRequestMessage m = new InformationRequestMessage();
140 if (m.parse(root_element) == false)
141 {
142 errorMessage = m.getErrorMessage();
143 return false;
144 }
145
146 message = m;
147 }
148 else if (node_name.equals("info-response") == true)
149 {
150 InformationResponseMessage m = new InformationResponseMessage();
151 if (m.parse(root_element) == false)
152 {
153 errorMessage = m.getErrorMessage();
154 return false;
155 }
156
157 message = m;
158 }
159
161 return true;
162 }
163
164
168 public com.quikj.application.web.talk.feature.proactive.messaging.ProactiveMessageInterface getMessage()
169 {
170 return message;
171 }
172
173
177 public void setMessage(com.quikj.application.web.talk.feature.proactive.messaging.ProactiveMessageInterface message)
178 {
179 this.message = message;
180 }
181
182 class XMLParserDOM
183 {
184 public XMLParserDOM (DocumentBuilder builder)
185 {
186 this.builder = builder;
187 }
188
189 public boolean parse (String body)
190 {
191 try
192 {
193 InputSource source = new InputSource(new StringReader(body));
194 Document doc = builder.parse(source);
195
196 if (doc.getNodeType() != Node.DOCUMENT_NODE)
197 {
198 errorMessage = "The message does not begin with an Document node";
200 return false;
201 }
202
203 Node root = null;
204 boolean root_found = false;
205 for (root = doc.getFirstChild();
206 root != null;
207 root = root.getNextSibling())
208 {
209 if (root.getNodeType() == Node.ELEMENT_NODE)
210 {
211 root_found = true;
212 break;
213
214 }
215 }
217
218 if (root_found == false)
219 {
220 errorMessage = "Root element not found";
221 return false;
222 }
223 else
224 {
225 rootElement = root;
226 nodeName = root.getNodeName();
227 }
228 }
229 catch (SAXException ex)
230 {
231 errorMessage = "Malformatted message: "
232 + ex.getMessage();
233 return false;
234 }
235 catch (IOException ex)
236 {
237 errorMessage = "IO error: "
238 + ex.getMessage();
239 return false;
240 }
241
242 return true;
243 }
244
245
248 public java.lang.String getNodeName()
249 {
250 return nodeName;
251 }
252
253
256 public void setNodeName(java.lang.String nodeName)
257 {
258 this.nodeName = nodeName;
259 }
260
261
264 public java.lang.Object getRootElement()
265 {
266 return rootElement;
267 }
268
269
272 public void setRootElement(java.lang.Object rootElement)
273 {
274 this.rootElement = rootElement;
275 }
276
277 private String nodeName = null;
278 private Object rootElement = null;
279 private DocumentBuilder builder = null;
280 }
281
282 class XMLParserNANO
283 {
284 public XMLParserNANO()
285 throws ClassNotFoundException , InstantiationException , IllegalAccessException
286 {
287 nanoXMLParser = XMLParserFactory.createXMLParser("net.n3.nanoxml.StdXMLParser",
288 new StdXMLBuilder());
289 }
290
291 public boolean parse (String body)
292 {
293 try
294 {
295 nanoXMLParser.setReader(StdXMLReader.stringReader(body));
296 IXMLElement element = (IXMLElement)nanoXMLParser.parse();
297
298 rootElement = element;
300 nodeName = element.getFullName();
301 }
302 catch (XMLException ex)
303 {
304 errorMessage = "Malformatted message: "
305 + ex.getMessage();
306 return false;
307 }
308
309 return true;
310 }
311
312
315 public java.lang.String getNodeName()
316 {
317 return nodeName;
318 }
319
320
323 public void setNodeName(java.lang.String nodeName)
324 {
325 this.nodeName = nodeName;
326 }
327
328
331 public java.lang.Object getRootElement()
332 {
333 return rootElement;
334 }
335
336
339 public void setRootElement(java.lang.Object rootElement)
340 {
341 this.rootElement = rootElement;
342 }
343
344 private String nodeName = null;
345 private Object rootElement = null;
346 private IXMLParser nanoXMLParser = null;
347 }
348
349 }
350 |
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