1 /**
2 * This file Copyright (c) 2010-2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.module.blossom.support;
35
36 import java.lang.reflect.Method;
37
38 import org.springframework.core.GenericTypeResolver;
39 import org.springframework.core.MethodParameter;
40 import org.springframework.util.ReflectionUtils;
41
42 /**
43 * Utility class for invoking methods.
44 *
45 * @since 1.1.1
46 */
47 public class MethodInvocationUtils {
48
49 /**
50 * Invokes a method with parameters resolved by the passed in ParameterResolver. Should not be used for
51 * methods that throw checked exceptions. Can invoke non public methods.
52 *
53 * @see info.magnolia.module.blossom.support.ParameterResolver
54 */
55 public static Object invoke(Method method, Object object, ParameterResolver resolver) {
56 Class<?>[] parameterTypes = method.getParameterTypes();
57 Object[] parameters = new Object[parameterTypes.length];
58
59 for (int i = 0; i < parameterTypes.length; i++) {
60
61 MethodParameter methodParameter = new MethodParameter(method, i);
62 GenericTypeResolver.resolveParameterType(methodParameter, object.getClass());
63 Class parameterType = methodParameter.getParameterType();
64
65 parameters[i] = resolver.resolveParameter(parameterType);
66 }
67
68 ReflectionUtils.makeAccessible(method);
69
70 return ReflectionUtils.invokeMethod(method, object, parameters);
71 }
72 }