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Java > Open Source Codes > org > apache > james > transport > matchers > FileRegexMatcher


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17
18 package org.apache.james.transport.matchers;
19
20 import org.apache.oro.text.regex.MalformedPatternException;
21 import org.apache.james.util.RFC2822Headers;
22 import javax.mail.MessagingException JavaDoc;
23
24 /**
25  * Initializes RegexMatcher with regular expressions from a file.
26  *
27  */
28 public class FileRegexMatcher extends GenericRegexMatcher {
29     public void init() throws MessagingException JavaDoc {
30         try {
31             java.io.RandomAccessFile JavaDoc patternSource = new java.io.RandomAccessFile JavaDoc(getCondition(), "r");
32             int lines = 0;
33             while(patternSource.readLine() != null) lines++;
34             patterns = new Object JavaDoc[lines][2];
35             patternSource.seek(0);
36             for (int i = 0; i < lines; i++) {
37                 String JavaDoc line = patternSource.readLine();
38                 patterns[i][0] = line.substring(0, line.indexOf(':'));
39                 patterns[i][1] = line.substring(line.indexOf(':')+1);
40             }
41             compile(patterns);
42         }
43         catch (java.io.FileNotFoundException JavaDoc fnfe) {
44             throw new MessagingException JavaDoc("Could not locate patterns.", fnfe);
45         }
46         catch (java.io.IOException JavaDoc ioe) {
47             throw new MessagingException JavaDoc("Could not read patterns.", ioe);
48         }
49         catch(MalformedPatternException mp) {
50             throw new MessagingException JavaDoc("Could not initialize regex patterns", mp);
51         }
52     }
53 }
54
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