StaticLogger.java

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/*
 *   DENOPTIM
 *   Copyright (C) 2019 Vishwesh Venkatraman <vishwesh.venkatraman@ntnu.no>
 * 
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU Affero General Public License as published
 *   by the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Affero General Public License for more details.
 *
 *   You should have received a copy of the GNU Affero General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package denoptim.logging;
 
import java.util.logging.Logger;
 
 
public class StaticLogger 
{
    public static final Logger appLogger = Logger.getLogger("DENOPTIMLogger");
    private static StaticLogger uniqInstance = null;
    
//------------------------------------------------------------------------------
    
    private StaticLogger()
    {
      // Exists only to defeat instantiation.
    }
 
//------------------------------------------------------------------------------    
    
    public static synchronized StaticLogger getInstance() 
    {  
        if(uniqInstance == null) 
        {  
            uniqInstance = new StaticLogger();
        }
        return uniqInstance;
    }
 
//------------------------------------------------------------------------------
 
    @Override
    public final Object clone() throws CloneNotSupportedException 
    {
        throw new CloneNotSupportedException();
    }
    
//------------------------------------------------------------------------------  
    
}