    001/**
    002 * Copyright (c) 2004-2011 QOS.ch
    003 * All rights reserved.
    004 *
    005 * Permission is hereby granted, free  of charge, to any person obtaining
    006 * a  copy  of this  software  and  associated  documentation files  (the
    007 * "Software"), to  deal in  the Software without  restriction, including
    008 * without limitation  the rights to  use, copy, modify,  merge, publish,
    009 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    010 * permit persons to whom the Software  is furnished to do so, subject to
    011 * the following conditions:
    012 *
    013 * The  above  copyright  notice  and  this permission  notice  shall  be
    014 * included in all copies or substantial portions of the Software.
    015 *
    016 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    017 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    018 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    019 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    020 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    021 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    022 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    023 *
    024 */
    025package org.slf4j.impl;
    026
    027import org.slf4j.spi.MDCAdapter;
    028
    029/**
    030 * This class is only a stub. Real implementations are found in
    031 * each SLF4J binding project, e.g. slf4j-nop, slf4j-log4j12 etc.
    032 *
    033 * @author Ceki G&uuml;lc&uuml;
    034 */
    035public class StaticMDCBinder {
    036
    037    /**
    038     * The unique instance of this class.
    039     */
    040    public static final StaticMDCBinder SINGLETON = new StaticMDCBinder();
    041
    042    private StaticMDCBinder() {
    043        throw new UnsupportedOperationException("This code should never make it into the jar");
    044    }
    045
    046    /**
    047     * Return the singleton of this class.
    048     *
    049     * @return the StaticMDCBinder singleton
    050     * @since 1.7.14
    051     */
    052    public static final StaticMDCBinder getSingleton() {
    053        return SINGLETON;
    054    }
    055
    056    /**
    057     * Currently this method always returns an instance of
    058     * {@link StaticMDCBinder}.
    059     */
    060    public MDCAdapter getMDCA() {
    061        throw new UnsupportedOperationException("This code should never make it into the jar");
    062    }
    063
    064    public String getMDCAdapterClassStr() {
    065        throw new UnsupportedOperationException("This code should never make it into the jar");
    066    }
    067}