nz.co.testamation.common.util.ReflectionUtil.java Source code

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Here is the source code for nz.co.testamation.common.util.ReflectionUtil.java

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/*
 * Copyright 2016 Ratha Long
 *
 * 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.
 */

package nz.co.testamation.common.util;

import org.apache.commons.lang3.reflect.FieldUtils;

import java.lang.reflect.Field;

public class ReflectionUtil {

    public static Object getFieldValue(Object obj, String fieldName) {
        try {
            return getField(obj, fieldName).get(obj);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    }

    public static void setField(Object obj, String fieldName, Object value) {
        try {
            getField(obj, fieldName).set(obj, value);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    }

    private static Field getField(Object obj, String fieldName) {
        return FieldUtils.getField(obj.getClass(), fieldName, true);
    }

    public static <T> T getFieldValue(Object obj, String fieldName, Class<T> clazz) {
        return (T) getFieldValue(obj, fieldName);
    }

}