ReflectionHelper.java Source code

Introduction

Here is the source code for ReflectionHelper.java

Source

// $Id: ReflectionHelper.java 16271 2009-04-07 20:20:12Z hardy.ferentschik $
/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,  
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

import java.beans.Introspector;
import java.lang.annotation.Annotation;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.lang.reflect.WildcardType;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

/**
 * Some reflection utility methods.
 *
 * @author Hardy Ferentschik
 */
public class ReflectionHelper {

    public static Object getValue(Member member, Object object) {
        Object value = null;

        if (member instanceof Method) {
            Method method = (Method) member;
            try {
                value = method.invoke(object);
            } catch (IllegalAccessException e) {
                throw new RuntimeException("Unable to access " + method.getName(), e);
            } catch (InvocationTargetException e) {
                throw new RuntimeException("Unable to access " + method.getName(), e);
            }
        } else if (member instanceof Field) {
            Field field = (Field) member;
            try {
                value = field.get(object);
            } catch (IllegalAccessException e) {
                throw new RuntimeException("Unable to access " + field.getName(), e);
            }
        }
        return value;
    }

}