/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.codehaus.groovy.runtime;
import java.lang.reflect.Method;
/**
* Utility class to call methods through reflection, and falls through using the <code>Invoker</code> to call the method if it fails.
* The class is particularly useful for Groovy classes implementing <code>GroovyInterceptable</code>,
* since it is not possible to call any method from this class,
* because it is intercepted by the <code>invokeMethod()</code> method.
*
* @author Guillaume Laforge
*/
public class ReflectionMethodInvoker {
/**
* Invoke a method through reflection.
* Falls through to using the Invoker to call the method in case the reflection call fails..
*
* @param object the object on which to invoke a method
* @param methodName the name of the method to invoke
* @param parameters the parameters of the method call
* @return the result of the method call
*/
public static Object invoke(Object object, String methodName, Object[] parameters) {
try {
Class[] classTypes = new Class[parameters.length];
for (int i = 0; i < classTypes.length; i++) {
classTypes[i] = parameters[i].getClass();
}
Method method = object.getClass().getMethod(methodName, classTypes);
return method.invoke(object, parameters);
} catch (Throwable t) {
return InvokerHelper.invokeMethod(object, methodName, parameters);
}
}
}