Mercurial Hosting > luan

comparison src/goodjava/logger/DailyRollingFileAppender.java @ 1594:329197048ff0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
add DailyRollingFileAppender
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 21 Mar 2021 00:59:58 -0600
parents
children 8a717f0b7f45
comparison
equal deleted inserted replaced
1593:ea62c2316b2e 1594:329197048ff0
1 package goodjava.logger;
2
3 import java.io.FileWriter;
4 import java.io.IOException;
5 import java.text.DateFormat;
6 import java.util.Date;
7
8
9 public final class DailyRollingFileAppender extends WriterAppender {
10 private final DateFormat format;
11 private String fileName;
12
13 public DailyRollingFileAppender(Layout layout,DateFormat format) {
14 super(layout,null);
15 this.format = format;
16 }
17
18 public synchronized void append(LoggingEvent event) {
19 String newFileName = format.format(new Date());
20 if( !newFileName.equals(fileName) ) {
21 fileName = newFileName;
22 if( writer != null )
23 close();
24 try {
25 writer = new FileWriter(fileName,true);
26 } catch(IOException e) {
27 throw new RuntimeException(e);
28 }
29 }
30 super.append(event);
31 }
32 }