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.orchestra.lib.jsf;
20
21 import javax.faces.FacesException;
22 import javax.faces.context.FacesContext;
23
24 import org.apache.myfaces.orchestra.conversation.ConversationManager;
25
26 /**
27 * RequestHandler that simply ensures that a ConversationManager exists for the current user
28 * at the start of a request.
29 * <p>
30 * However if there is no session then one is not created, as that would force the creation
31 * of a session to store it in. Creating the session is particularly unfriendly for apps
32 * that use weblets and disable cookies..
33 *
34 * @since 1.1
35 */
36 class ConversationManagerRequestHandler implements RequestHandler
37 {
38 public void init(FacesContext facesContext) throws FacesException
39 {
40 Object session = facesContext.getExternalContext().getSession(false);
41 if (session != null)
42 {
43 ConversationManager.getInstance();
44 }
45 }
46
47 public void deinit() throws FacesException
48 {
49 }
50 }
51