source: DCWoRMS/trunk/src/simulator/utils/InstanceFactory.java @ 477

package simulator.utils;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;


public class InstanceFactory {

        private static Log log = LogFactory.getLog(InstanceFactory.class);
        
        public static final Object createInstance(String className, Class<?> z){
                
                if(className == null)
                        return null;
                
                Object obj = null;
                
                try {
                        
                        Class<?> c = Class.forName(className);
                        if(!z.isAssignableFrom(c)){
                                log.error(className + " does not implement desired interface " + z.getName());
                                return null;
                        }
                        
                        obj = c.newInstance();
                        
                } catch (ClassNotFoundException e) {
                        log.error(e.getMessage() + " Class not found.");
                } catch (InstantiationException e) {
                        log.error(e.getMessage() + " Can not create class instance.");
                } catch (IllegalAccessException e) {
                        log.error(e.getMessage() + " Illegal Access.");
                }
                
                return obj;
                
        }
        
}