/*
 * Copyright 2004-2006 IDCA. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 * 
 *    1. Redistributions of source code must retain the above copyright notice, this list of conditions and
 *        the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions
 *        and the following disclaimer in the documentation and/or other materials provided with the
 *        distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY IDCA AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IDCA OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * The views and conclusions contained in the software and documentation are those of the authors and
 * should not be interpreted as representing official policies, either expressed or implied, of IDCA.
 */

package com.idcanet.foei.server;

/**
 * Provides the method to get the FoeiContextManager
 * 
 * @author Willem Cazander
 * @version 1.0 Feb 6, 2006
 */
public class FoeiContextManagerFactory {
	
	/** */
	static private FoeiContextManager foeiContextManager = null;
	
	/**
	 * Gets the FoeiContextManager
	 * @return	Returns the FoeiContextManager
	 */
	static public FoeiContextManager getFoeiContextManager() {
		if(foeiContextManager==null) {
			throw new IllegalStateException("no FoeiContextManager has been set.");
		}
		return foeiContextManager;
	}
	
	/**
	 * Sets an FoeiContextManager.<br/>
     * note:
     * May only be set once !.
     * 
	 * @param foeiContextManager
	 */
	static public void setFoeiContextManager(FoeiContextManager foeiContextManager) {
		if(foeiContextManager==null) {
			throw new NullPointerException("foeiContextManager may not be null.");
		}
        if(FoeiContextManagerFactory.foeiContextManager!=null) {
            throw new IllegalStateException("foeiContextManager may only be set once.");
        }
		FoeiContextManagerFactory.foeiContextManager=foeiContextManager;
	}
}