Secure_Logger

public class SecureLogger {
    private static final Logger logger = LoggerFactory.getLogger(SecureLogger.class);
    private static final Pattern SENSITIVE_DATA = 
        Pattern.compile("\\b(password|credit_card|ssn)\\b", 
        Pattern.CASE_INSENSITIVE);

    public static void logInfo(String message) {
        logger.info(sanitizeLog(message));
    }

    public static void logError(String message, Throwable error) {
        logger.error(sanitizeLog(message), error);
    }

    private static String sanitizeLog(String message) {
        if (message == null) return null;
        return SENSITIVE_DATA.matcher(message).replaceAll("[REDACTED]");
    }

    public static void auditLog(String userId, String action, String resource) {
        String logMessage = String.format(
            "User: %s, Action: %s, Resource: %s, Time: %s, IP: %s",
            userId, action, resource, 
            LocalDateTime.now(), getCurrentIP()
        );
        logger.info("AUDIT: " + logMessage);
    }
}