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.token;
20
21 import javax.faces.context.FacesContext;
22 import org.apache.myfaces.shared.util.StateUtils;
23
24 /**
25 *
26 * @author Thomas Andraschko
27 */
28 public class ClientSideStateTokenProcessor extends StateTokenProcessor
29 {
30 @Override
31 public Object decode(FacesContext facesContext, String token)
32 {
33 if (STATELESS_TOKEN.equals(token))
34 {
35 // Should not happen, because ResponseStateManager.isStateless(context,viewId) should
36 // catch it first
37 return null;
38 }
39 Object savedStateObject = StateUtils.reconstruct((String)token, facesContext.getExternalContext());
40 return savedStateObject;
41 }
42
43 @Override
44 public String encode(FacesContext facesContext, Object savedStateObject)
45 {
46 if (facesContext.getViewRoot().isTransient())
47 {
48 return STATELESS_TOKEN;
49 }
50 String serializedState = StateUtils.construct(savedStateObject, facesContext.getExternalContext());
51 return serializedState;
52 }
53 }