001/**
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
004 *
005 * This program and the accompanying materials are dual-licensed under
006 * either the terms of the Eclipse Public License v1.0 as published by
007 * the Eclipse Foundation
008 *
009 *   or (per the licensee's choosing)
010 *
011 * under the terms of the GNU Lesser General Public License version 2.1
012 * as published by the Free Software Foundation.
013 */
014package ch.qos.logback.access.pattern;
015
016import ch.qos.logback.access.spi.IAccessEvent;
017
018/**
019 * Always returns the NA (not available) string which is "-" in the case
020 * of access conversions. 
021 *
022 * @author Ceki Gülcü
023 */
024public class NAConverter extends AccessConverter {
025
026    @Override
027    public String convert(IAccessEvent accessEvent) {
028        return IAccessEvent.NA;
029    }
030
031}