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1 package org.jzonic.jlo.formatter.tokens;
2
3 import org.jzonic.jlo.LogRecord;
4 import org.jzonic.jlo.error.ErrorHandler;
5 import gnu.regexp.RE;
6 import gnu.regexp.REMatch;
7
8 import java.util.Map  ;
9 import java.util.HashMap ;
10
11
16 public class TokenParser {
17
18 private static Map tokens = new HashMap ();
19 static {
20 tokens.put("text",new TextToken());
21 tokens.put("class",new ClassToken());
22 tokens.put("shortclass",new ShortClassToken());
23 tokens.put("target",new TargetToken());
24 tokens.put("date",new DateToken());
25 tokens.put("ndc",new NDCToken());
26 tokens.put("elapsed",new TimeTrackerToken());
27 }
28
29 public String parseLine(LogRecord lr,String format) {
30 String ret = format;
31 try {
32 String expression = "\\$\\{([^\\}]+)\\}";
33 RE re = new RE(expression);
34 REMatch[] matches = re.getAllMatches(format);
35 for ( int i = 0; i < matches.length;i++) {
36 String token = matches[i].toString(1);
37 String placeHolder = matches[i].toString(1);
38 String txt = null;
39 if ( token.startsWith("${")) {
40 token = token.substring(2);
41 }
42 if ( token.endsWith("}")) {
43 token = token.substring(0,token.length()-1);
44 }
45 if ( token.indexOf(":") != -1 ) {
46 token = token.substring(0,token.indexOf(":"));
47 txt = placeHolder.substring(placeHolder.indexOf(":")+1);
48 txt = txt.substring(0,txt.length());
49 }
50 String match = null;
51 if ( tokens.containsKey(token)) {
52 FormatterToken ft = (FormatterToken)tokens.get(token);
53 if ( txt != null ) {
54 ft.setParameterString(txt);
55 }
56 match = ft.format(lr);
57 }
58 if ( match != null ) {
59 ret = re.substitute(ret,match);
60 }
61 }
62 return ret;
63 }
64 catch (Exception e) {
65 ErrorHandler.reportError("Error while formatting logrecord",e);
66 }
67 return ret;
68 }
69 }
70 |
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