1 /*
2 * $Id: AnnotationValidationInterceptor.java 502294 2007-02-01 17:28:00Z niallp $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 package org.apache.struts2.interceptor.validation;
22
23 import java.lang.reflect.Method;
24
25 import com.opensymphony.xwork2.ActionInvocation;
26 import com.opensymphony.xwork2.validator.ValidationInterceptor;
27
28 /**
29 * Extends the xwork validation interceptor to also check for a @SkipValidation
30 * annotation, and if found, don't validate this action method
31 */
32 public class AnnotationValidationInterceptor extends ValidationInterceptor {
33
34 /** Auto-generated serialization id */
35 private static final long serialVersionUID = 1813272797367431184L;
36
37 protected String doIntercept(ActionInvocation invocation) throws Exception {
38
39 Object action = invocation.getAction();
40 if (action != null) {
41 Method method = getActionMethod(action.getClass(), invocation.getProxy().getMethod());
42 SkipValidation skip = (SkipValidation) method.getAnnotation(SkipValidation.class);
43 if (skip != null) {
44 return invocation.invoke();
45 }
46 }
47
48 return super.doIntercept(invocation);
49 }
50
51 // FIXME: This is copied from DefaultActionInvocation but should be exposed through the interface
52 protected Method getActionMethod(Class actionClass, String methodName) throws NoSuchMethodException {
53 Method method;
54 try {
55 method = actionClass.getMethod(methodName, new Class[0]);
56 } catch (NoSuchMethodException e) {
57 // hmm -- OK, try doXxx instead
58 try {
59 String altMethodName = "do" + methodName.substring(0, 1).toUpperCase() + methodName.substring(1);
60 method = actionClass.getMethod(altMethodName, new Class[0]);
61 } catch (NoSuchMethodException e1) {
62 // throw the original one
63 throw e;
64 }
65 }
66 return method;
67 }
68 }
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