package org.jtheque.core.managers.module.beans;

 import org.jtheque.core.managers.Managers;

 import org.jtheque.core.managers.beans.IBeansManager;

 import org.jtheque.core.managers.log.ILoggingManager;

 import java.lang.reflect.Method;

 import java.security.AccessController;

 import java.security.PrivilegedAction;

 /*

  * This file is part of JTheque.

  *

  * JTheque is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, either version 3 of the License.

  *

  * JTheque 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 General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with JTheque.  If not, see <http://www.gnu.org/licenses/>.

  */

 /**

  * A bean method who invoke a method by reflection.

  *

  * @author Baptiste Wicht

  */

 public final class ReflectionBeanMethod implements BeanMethod {

     private final String beanName;

     private final String methodName;

     /**

      * Construct a new ReflectionBeanMethod.

      *

      * @param beanName   The name of the bean to invoke the method from.

      * @param methodName The name of the method.

      */

     public ReflectionBeanMethod(String beanName, String methodName) {

         super();

         this.beanName = beanName;

         this.methodName = methodName;

     }

     @Override

     public void run() {

         Object bean = Managers.getManager(IBeansManager.class).getBean(beanName);

         try {

             final Method method = bean.getClass().getDeclaredMethod(methodName);

             AccessController.doPrivileged(new MakeMethodAccessible(method));

             method.invoke(bean);

         } catch (Exception e) {

             Managers.getManager(ILoggingManager.class).getLogger(getClass()).error(e);

         }

     }

     /**

      * A privileged action to make a method accessible.

      *

      * @author Baptiste Wicht

      */

     private static final class MakeMethodAccessible implements PrivilegedAction<Object> {

         private final Method method;

         /**

          * Construct a new MakeMethodAccessible.

          *

          * @param method The method to make accessible.

          */

         private MakeMethodAccessible(Method method) {

             super();

             this.method = method;

         }

         @Override

         public Object run() {

             method.setAccessible(true);

             return null;

         }

     }

 }