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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.

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/**
 * Copyright (c) 2004-2011 QOS.ch
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */
package org.slf4j.impl;

import org.slf4j.spi.MDCAdapter;

/**
 * This class is only a stub. Real implementations are found in 
 * each SLF4J binding project, e.g. slf4j-nop, slf4j-log4j12 etc.
 *
 * @author Ceki Gülcü
 */
public class StaticMDCBinder {

    /**
     * The unique instance of this class.
     */
    public static final StaticMDCBinder SINGLETON = new StaticMDCBinder();

    private StaticMDCBinder() {
        throw new UnsupportedOperationException("This code should never make it into the jar");
    }

    /**
     * Return the singleton of this class.
     * 
     * @return the StaticMDCBinder singleton
     * @since 1.7.14
     */
    public static final StaticMDCBinder getSingleton() {
        return SINGLETON;
    }

    /**
     * Currently this method always returns an instance of 
     * {@link StaticMDCBinder}.
     */
    public MDCAdapter getMDCA() {
        throw new UnsupportedOperationException("This code should never make it into the jar");
    }

    public String getMDCAdapterClassStr() {
        throw new UnsupportedOperationException("This code should never make it into the jar");
    }
}