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1 package org.jivesoftware.messenger.plugin;
2
3 import java.io.File  ;
4 import java.net.MalformedURLException ;
5 import java.net.URL ;
6
7 import javax.xml.parsers.SAXParserFactory ;
8
9 import org.dom4j.Document;
10 import org.dom4j.DocumentException;
11 import org.dom4j.io.SAXReader;
12 import org.dom4j.io.SAXWriter;
13 import org.jivesoftware.util.Log;
14 import org.xml.sax.ContentHandler ;
15 import org.xml.sax.ErrorHandler ;
16 import org.xml.sax.Locator ;
17 import org.xml.sax.SAXParseException ;
18
19 import com.sun.msv.reader.util.GrammarLoader;
20 import com.sun.msv.reader.util.IgnoreController;
21 import com.sun.msv.verifier.DocumentDeclaration;
22 import com.sun.msv.verifier.Verifier;
23
24 public class UserSchemaValidator {
25 private Document doc;
26 private String schema;
27
28 UserSchemaValidator(String usersFile, String schemaFile) throws MalformedURLException , DocumentException {
29 URL usersURL = new File (usersFile).toURL();
30 URL schemaURL = this.getClass().getClassLoader().getResource(schemaFile);
31
32 SAXReader reader = new SAXReader();
33 doc = reader.read(usersURL);
34 schema = schemaURL.toExternalForm();
35 }
36
37 boolean validate() {
38 try {
39 SAXParserFactory saxFactory = SAXParserFactory.newInstance();
40 saxFactory.setNamespaceAware(true);
41 DocumentDeclaration docDeclaration = GrammarLoader.loadVGM(schema, new IgnoreController() {
42 public void error(Locator [] locations,
43 String message,
44 Exception exception) {
45 Log.error("ERROR: " + message);
46 }
47
48 public void error(Locator [] locations, String message) {
49 Log.error("WARNING: " + message);
50 }
51 }, saxFactory);
52
53 ValidatorErrorHandler validatorErrorHandler = new ValidatorErrorHandler();
54 Verifier verifier = new Verifier(docDeclaration, validatorErrorHandler);
55
56 SAXWriter writer = new SAXWriter((ContentHandler ) verifier);
57 writer.setErrorHandler(validatorErrorHandler);
58
59 writer.write(doc);
60 if (verifier.isValid()) {
61 return true;
62 } else {
63 Log.error(doc.getName() + " is invalid.");
64 return false;
65 }
66 } catch (Exception e) {
67 Log.error(e);
68 return false;
69 }
70 }
71
72 private class ValidatorErrorHandler implements ErrorHandler {
73 public void error(SAXParseException e) {
74 Log.error("ERROR:" + e);
75 }
76
77 public void fatalError(SAXParseException e) {
78 Log.error("Fatal:" + e);
79 }
80
81 public void warning(SAXParseException e) {
82 Log.error("Warning:" + e);
83 }
84 }
85 }
86 |
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