Java Method Call invoke(Object obj, String name, Object... args)

Description

invoke

License

Open Source License

Declaration

public static Object invoke(Object obj, String name, Object... args) throws Exception 

Method Source Code

//package com.java2s;
/**/*from   w ww  .j  av  a  2 s . c  om*/
 * Copyright 2012 Rafal Lewczuk <rafal.lewczuk@jitlogic.com>
 *
 * ZORKA 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, or (at your option) any later
 * version.
 *
 * ZORKA 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
 * ZORKA. If not, see <http://www.gnu.org/licenses/>.
 */

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    public static Object invoke(Object obj, String name, Object... args) throws Exception {
        Method method = null;
        Class<?> clazz = obj.getClass();

        for (Method met : clazz.getMethods()) {
            if (name.equals(met.getName())) {
                method = met;
                break;
            }
        }

        try {

            if (method != null) {
                if (args.length == 0) {
                    return method.invoke(obj);
                } else {
                    return method.invoke(obj, args);
                }
            }
        } catch (InvocationTargetException e) {
            return e.getCause();
        } catch (Throwable e) {
            return e;
        }

        return null;
    }
}

Related

1. invoke(Object obj, String methodName, Class clazz, Object newValue)
2. invoke(Object obj, String methodName, Class[] parameterTypes, Object[] args)
3. invoke(Object obj, String methodName, Object... args)
4. invoke(Object obj, String methodName, Object... params)
5. invoke(Object obj, String methodName, Object[] params)
6. invoke(Object object, Method method)
7. invoke(Object object, Object[] args, String methodName)
8. invoke(Object object, String function, Object... params)
9. invoke(Object object, String function, String parameter)