1 /*
2 * Copyright 2011 FatWire Corporation. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package com.fatwire.gst.foundation.controller.annotation;
18
19 import java.lang.reflect.Method;
20
21 import COM.FutureTense.Interfaces.ICS;
22
23 /**
24 * This class resolves a specific method that handles a specific request as a
25 * controller. The method needs to be annotated with the IcsVariable annotation
26 * and need to accept one argument of type ICS.
27 * <p/>
28 * The name of the method can be freely chosen. The method needs to have public
29 * visibility.
30 *
31 * @author Dolf Dijkstra
32 * @since Mar 21, 2011
33 */
34 public class ControllerMappingResolver {
35
36 /**
37 * @param ics
38 * @param o object with method annotations of type IcsVariable
39 * @return the method with the IcsVariable annotation that has a match for
40 * the name value pair as set in the annotation.
41 */
42 public Method findControllerMethod(final ICS ics, final Object o) {
43 for (final Method m : o.getClass().getMethods()) {
44 final IcsVariable p = m.getAnnotation(IcsVariable.class);
45 if (p != null) {
46 for (final String param : p.var()) {
47 final String[] split = param.split("=");
48 if (split[1].equals(ics.GetVar(split[0]))) {
49
50 if (m.getParameterTypes().length == 1 && m.getParameterTypes()[0].equals(ICS.class)) {
51 return m;
52 }
53 throw new UnsupportedOperationException("Method " + m.getName()
54 + " does not have a single argument of type ICS though the method is annotated "
55 + "with a IcsVariable annation.");
56
57 }
58 }
59 }
60
61 }
62 return null;
63 }
64 }