org.kuali.common.util.ReflectionUtils Maven / Gradle / Ivy

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/**
 * Copyright 2010-2013 The Kuali Foundation
 *
 * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
 *
 * 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 org.kuali.common.util;

import java.lang.reflect.InvocationTargetException;
import java.util.Map;

import org.apache.commons.beanutils.BeanUtils;
import org.springframework.util.MethodInvoker;

public class ReflectionUtils extends org.springframework.util.ReflectionUtils {

	@SuppressWarnings("unchecked")
	public static Map describe(Object bean) {
		try {
			return BeanUtils.describe(bean);
		} catch (IllegalAccessException e) {
			throw new IllegalStateException(e);
		} catch (InvocationTargetException e) {
			throw new IllegalStateException(e);
		} catch (NoSuchMethodException e) {
			throw new IllegalStateException(e);
		}
	}

	public static void copyProperty(Object bean, String name, Object value) {
		try {
			BeanUtils.copyProperty(bean, name, value);
		} catch (IllegalAccessException e) {
			throw new IllegalStateException(e);
		} catch (InvocationTargetException e) {
			throw new IllegalStateException(e);
		}
	}

	public static Object invokeMethod(Class targetClass, String targetMethod, Object... arguments) {
		MethodInvoker invoker = new MethodInvoker();
		invoker.setTargetClass(targetClass);
		invoker.setTargetMethod(targetMethod);
		invoker.setArguments(arguments);
		return invoke(invoker);
	}

	public static Object invoke(MethodInvoker invoker) {
		try {
			invoker.prepare();
			return invoker.invoke();
		} catch (ClassNotFoundException e) {
			throw new IllegalStateException(e);
		} catch (NoSuchMethodException e) {
			throw new IllegalStateException(e);
		} catch (InvocationTargetException e) {
			throw new IllegalStateException(e);
		} catch (IllegalAccessException e) {
			throw new IllegalStateException(e);
		}
	}

	public static Class getClass(String className) {
		try {
			return Class.forName(className);
		} catch (ClassNotFoundException e) {
			throw new IllegalArgumentException(e);
		}
	}

	public static  T newInstance(String className) {
		@SuppressWarnings("unchecked")
		Class clazz = (Class) getClass(className);
		return (T) newInstance(clazz);
	}

	public static  T newInstance(Class instanceClass) {
		try {
			return (T) instanceClass.newInstance();
		} catch (IllegalAccessException e) {
			throw new IllegalArgumentException("Unexpected error", e);
		} catch (InstantiationException e) {
			throw new IllegalArgumentException("Unexpected error", e);
		}
	}

}