1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.shared.util;
20
21 import java.lang.reflect.Method;
22
23 /**
24 *
25 */
26 public final class ServletSpecifications
27 {
28 private static volatile Boolean servlet30Available;
29
30 public static boolean isServlet30Available()
31 {
32 if (servlet30Available == null)
33 {
34 Class clazz = ClassUtils.simpleClassForName("javax.servlet.http.Cookie");
35 try
36 {
37 Method m = clazz.getMethod("setHttpOnly", boolean.class);
38 if (m != null)
39 {
40 servlet30Available = Boolean.TRUE;
41 }
42 else
43 {
44 servlet30Available = Boolean.FALSE;
45 }
46 }
47 catch (NoSuchMethodException ex)
48 {
49 servlet30Available = Boolean.FALSE;
50 }
51 catch (SecurityException ex)
52 {
53 // Don't assume servlet 2.5 if a SecurityException is thrown,
54 // assume always servlet 3.0
55 servlet30Available = Boolean.TRUE;
56 }
57 }
58 return servlet30Available;
59 }
60
61 }