| /* |
| $Id$ |
| |
| Copyright 2005 (C) Guillaume Laforge. All Rights Reserved. |
| |
| Redistribution and use of this software and associated documentation |
| ("Software"), with or without modification, are permitted provided |
| that the following conditions are met: |
| |
| 1. Redistributions of source code must retain copyright |
| statements and notices. Redistributions must also contain a |
| copy of this document. |
| |
| 2. Redistributions in binary form must reproduce the |
| above copyright notice, this list of conditions and the |
| following disclaimer in the documentation and/or other |
| materials provided with the distribution. |
| |
| 3. The name "groovy" must not be used to endorse or promote |
| products derived from this Software without prior written |
| permission of The Codehaus. For written permission, |
| please contact info@codehaus.org. |
| |
| 4. Products derived from this Software may not be called "groovy" |
| nor may "groovy" appear in their names without prior written |
| permission of The Codehaus. "groovy" is a registered |
| trademark of The Codehaus. |
| |
| 5. Due credit should be given to The Codehaus - |
| http://groovy.codehaus.org/ |
| |
| THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS |
| ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT |
| NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| */ |
| 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>GroovyIntercpetable</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); |
| } |
| } |
| |
| } |