You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
2.7 KiB
130 lines
2.7 KiB
package mightypork.utils.logging.writers;
|
|
|
|
|
|
import java.io.File;
|
|
import java.io.FileFilter;
|
|
import java.text.SimpleDateFormat;
|
|
import java.util.Collections;
|
|
import java.util.Comparator;
|
|
import java.util.Date;
|
|
import java.util.List;
|
|
|
|
import mightypork.utils.Str;
|
|
import mightypork.utils.files.FileUtil;
|
|
|
|
|
|
/**
|
|
* Logger that cleans directory & archives old logs
|
|
*
|
|
* @author Ondřej Hruška (MightyPork)
|
|
* @copy (c) 2014
|
|
*/
|
|
public class ArchivingLog extends SimpleLog {
|
|
|
|
/** Number of old logs to keep */
|
|
private final int logs_to_keep;
|
|
|
|
|
|
/**
|
|
* Log
|
|
*
|
|
* @param name log name
|
|
* @param file log file (in log directory)
|
|
* @param oldLogCount number of old log files to keep: -1 all, 0 none.
|
|
*/
|
|
public ArchivingLog(String name, File file, int oldLogCount)
|
|
{
|
|
super(name, file);
|
|
this.logs_to_keep = oldLogCount;
|
|
}
|
|
|
|
|
|
/**
|
|
* Log, not keeping 5 last log files (default);
|
|
*
|
|
* @param name log name
|
|
* @param file log file (in log directory)
|
|
*/
|
|
public ArchivingLog(String name, File file)
|
|
{
|
|
super(name, file);
|
|
this.logs_to_keep = 5;
|
|
}
|
|
|
|
|
|
@Override
|
|
public void init()
|
|
{
|
|
cleanLoggingDirectory();
|
|
|
|
super.init();
|
|
}
|
|
|
|
|
|
private void cleanLoggingDirectory()
|
|
{
|
|
if (logs_to_keep == 0) return; // overwrite
|
|
|
|
final File log_file = getFile();
|
|
final File log_dir = log_file.getParentFile();
|
|
final String fname = FileUtil.getBasename(log_file.toString());
|
|
|
|
// move old file
|
|
for (final File f : FileUtil.listDirectory(log_dir)) {
|
|
if (!f.isFile()) continue;
|
|
if (f.equals(getFile())) {
|
|
|
|
final Date d = new Date(f.lastModified());
|
|
final String fbase = fname + '_' + (new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss")).format(d);
|
|
final String suff = "." + getSuffix();
|
|
String cntStr = "";
|
|
File f2;
|
|
|
|
for (int cnt = 0; (f2 = new File(log_dir, fbase + cntStr + suff)).exists(); cntStr = "_" + (++cnt)) {}
|
|
|
|
if (!f.renameTo(f2)) throw new RuntimeException("Could not move log file.");
|
|
}
|
|
}
|
|
|
|
if (logs_to_keep == -1) return; // keep all
|
|
|
|
final List<File> oldLogs = FileUtil.listDirectory(log_dir, new FileFilter() {
|
|
|
|
@Override
|
|
public boolean accept(File f)
|
|
{
|
|
if (f.isDirectory()) return false;
|
|
if (!f.getName().endsWith(getSuffix())) return false;
|
|
if (!f.getName().startsWith(fname)) return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
});
|
|
|
|
Collections.sort(oldLogs, new Comparator<File>() {
|
|
|
|
@Override
|
|
public int compare(File o1, File o2)
|
|
{
|
|
return o1.getName().compareTo(o2.getName());
|
|
}
|
|
});
|
|
|
|
// playing with fireee
|
|
for (int i = 0; i < oldLogs.size() - logs_to_keep; i++) {
|
|
if (!oldLogs.get(i).delete()) {
|
|
throw new RuntimeException("Could not delete old log file.");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @return log filename suffix
|
|
*/
|
|
private String getSuffix()
|
|
{
|
|
return Str.fromLast(getFile().toString(), '.');
|
|
}
|
|
}
|
|
|