SecureLog.java 文件源码

/**
 * Start logging to an additional log file location.
 *
 * @param   logfile     New logfile location
 */
public void addLogfile(String logfile) throws IOException {
    Appender existing = logRoot.getAppender(logfile);
    if (existing == null) {
        logEntry(this, INFO, "Adding new log file: " + logfile);
        logAppender = new DailyRollingFileAppender(defaultLayout, logfile, rotationInterval);
        logAppender.setName(logfile);
        logRoot.addAppender(logAppender);
        if (!logFiles.contains(logfile)) {
            logFiles.add(logfile);
        }
    } else {
        logEntry(this, DEBUG, "Log file already active: " + logfile);
    }
}