content: /*
   * LibertyBans
   * Copyright © 2021 Anand Beh
   *
   * LibertyBans 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.
   *
   * LibertyBans 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 LibertyBans. If not, see <https://www.gnu.org/licenses/>
   * and navigate to version 3 of the GNU Affero General Public License.
   */
  package space.arim.libertybans.core.config;
  
  import java.lang.reflect.InvocationHandler;
  import java.lang.reflect.Method;
  import java.lang.reflect.Proxy;
  
  abstract class Delegator<T> implements InvocationHandler {
  
  	private final Class<T> clazz;
  	private final T delegate;
  
  	Delegator(Class<T> clazz, T delegate) {
  		this.clazz = clazz;
  		this.delegate = delegate;
  	}
  
  	T proxy() {
  		return clazz.cast(Proxy.newProxyInstance(clazz.getClassLoader(), new Class<?>[] {clazz}, this));
  	}
  
  	@Override
  	public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
  		Object replacement = replacementFor(delegate, method.getName());
  		if (replacement != null) {
  			return replacement;
  		}
  		return method.invoke(delegate, args);
  	}
  
  	abstract Object replacementFor(T original, String methodName);
  
  }
  