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.application.viewstate;
20
21 import javax.faces.FacesWrapper;
22 import javax.faces.render.ResponseStateManager;
23 import org.apache.myfaces.renderkit.MyfacesResponseStateManager;
24
25 public class StateCacheUtils
26 {
27 public static boolean isMyFacesResponseStateManager(ResponseStateManager rsm)
28 {
29 if (rsm instanceof MyfacesResponseStateManager)
30 {
31 return true;
32 }
33 else
34 {
35 ResponseStateManager rsm1 = rsm;
36 while (rsm1 != null)
37 {
38 if (rsm1 instanceof MyfacesResponseStateManager)
39 {
40 return true;
41 }
42 if (rsm1 instanceof FacesWrapper)
43 {
44 rsm1 = ((FacesWrapper<? extends ResponseStateManager>) rsm1).getWrapped();
45 }
46 else
47 {
48 rsm1 = null;
49 }
50 }
51 return false;
52 }
53 }
54
55 public static MyfacesResponseStateManager getMyFacesResponseStateManager(ResponseStateManager rsm)
56 {
57 if (rsm instanceof MyfacesResponseStateManager)
58 {
59 return (MyfacesResponseStateManager) rsm;
60 }
61 else
62 {
63 ResponseStateManager rsm1 = rsm;
64 while (rsm1 != null)
65 {
66 if (rsm1 instanceof MyfacesResponseStateManager)
67 {
68 return (MyfacesResponseStateManager) rsm1;
69 }
70 if (rsm1 instanceof FacesWrapper)
71 {
72 rsm1 = ((FacesWrapper<? extends ResponseStateManager>) rsm1).getWrapped();
73 }
74 else
75 {
76 rsm1 = null;
77 }
78 }
79 return null;
80 }
81 }
82 }