Java Method Call invokeFunction(Object iFunction, String funcName, String param)

Description

invoke Function

License

GNU General Public License

Declaration

public static Object invokeFunction(Object iFunction, String funcName,
            String param) 

Method Source Code

//package com.java2s;
/**/*from  w  ww  .ja  v  a 2s  .co m*/
 * CROSSFIRE JAPAN INCORPORATED
 * This source code is under GPL License.
 * info@crossfire.jp
 * Official web site
 * http://alinous.org
 * 
 *  Copyright (C) 2007 Tomohiro Iizuka
 *
 *  This program 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.
 *
 *  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 General Public License for more details.
 *  
 *You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

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

public class Main {
    public static Object invokeFunction(Object iFunction, String funcName,
            String param) {
        Method m = null;
        try {
            m = iFunction.getClass().getMethod(funcName,
                    new Class[] { String.class });
        } catch (SecurityException e) {
            e.printStackTrace();
            return null;
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
            return null;
        }

        if (m == null) {
            return null;
        }

        Object retObj = null;
        try {
            retObj = m.invoke(iFunction, new Object[] { param });
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }

        return retObj;
    }

    public static Object invokeFunction(Object iFunction, String funcName,
            Object param, Class<?> clazz) {
        Method m = null;
        try {
            m = iFunction.getClass().getMethod(funcName,
                    new Class[] { clazz });
        } catch (SecurityException e) {
            e.printStackTrace();
            return null;
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
            return null;
        }

        if (m == null) {
            return null;
        }

        Object retObj = null;
        try {
            retObj = m.invoke(iFunction, new Object[] { param });
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }

        return retObj;
    }
}

Related

1. invokeDeclaredMethodWithAnnotation(Class annotationClass, Object target)
2. invokeDefaultMethod(final Method method, final Object[] args, final Object proxy)
3. invokedMethod(java.lang.Object closure, java.lang.Class targetClass, java.lang.String targetMethod)
4. invokeExactField(Object object, String fieldName)
5. invokeExactMethod(Object object, String methodName, Object[] args, Class[] parameterTypes)
6. invokeFunctions(Object iFunction, String funcName)
7. invokeGenericMethodOneArg(final Object obj, final String methodName, final Object arg)
8. invokeGet(Object o, String fieldName)
9. invokeGetClasspathMethodIfItExists(ClassLoader cl)