1 |
| |
2 |
| |
3 |
| |
4 |
| |
5 |
| |
6 |
| |
7 |
| |
8 |
| |
9 |
| |
10 |
| |
11 |
| |
12 |
| |
13 |
| |
14 |
| |
15 |
| package org.apache.tapestry.engine.state; |
16 |
| |
17 |
| import org.apache.tapestry.SessionStoreOptimized; |
18 |
| import org.apache.tapestry.web.WebRequest; |
19 |
| import org.apache.tapestry.web.WebSession; |
20 |
| |
21 |
| |
22 |
| |
23 |
| |
24 |
| |
25 |
| |
26 |
| |
27 |
| |
28 |
| public class SessionScopeManager implements StateObjectPersistenceManager |
29 |
| { |
30 |
| private WebRequest _request; |
31 |
| |
32 |
| private String _applicationId; |
33 |
| |
34 |
9
| private String buildKey(String objectName)
|
35 |
| { |
36 |
| |
37 |
| |
38 |
| |
39 |
9
| return "state:" + _applicationId + ":" + objectName;
|
40 |
| } |
41 |
| |
42 |
| |
43 |
| |
44 |
| |
45 |
| |
46 |
7
| private WebSession getSession()
|
47 |
| { |
48 |
7
| return _request.getSession(true);
|
49 |
| } |
50 |
| |
51 |
3
| public boolean exists(String objectName)
|
52 |
| { |
53 |
3
| WebSession session = _request.getSession(false);
|
54 |
| |
55 |
3
| if (session == null)
|
56 |
1
| return false;
|
57 |
| |
58 |
2
| return session.getAttribute(buildKey(objectName)) != null;
|
59 |
| } |
60 |
| |
61 |
4
| public Object get(String objectName, StateObjectFactory factory)
|
62 |
| { |
63 |
4
| String key = buildKey(objectName);
|
64 |
4
| WebSession session = getSession();
|
65 |
| |
66 |
4
| Object result = session.getAttribute(key);
|
67 |
4
| if (result == null)
|
68 |
| { |
69 |
3
| result = factory.createStateObject();
|
70 |
2
| session.setAttribute(key, result);
|
71 |
| } |
72 |
| |
73 |
3
| return result;
|
74 |
| } |
75 |
| |
76 |
4
| public void store(String objectName, Object stateObject)
|
77 |
| { |
78 |
4
| if (stateObject instanceof SessionStoreOptimized)
|
79 |
| { |
80 |
2
| SessionStoreOptimized optimized = (SessionStoreOptimized) stateObject;
|
81 |
| |
82 |
2
| if (!optimized.isStoreToSessionNeeded())
|
83 |
1
| return;
|
84 |
| } |
85 |
| |
86 |
3
| String key = buildKey(objectName);
|
87 |
| |
88 |
3
| WebSession session = getSession();
|
89 |
| |
90 |
3
| session.setAttribute(key, stateObject);
|
91 |
| } |
92 |
| |
93 |
8
| public void setApplicationId(String applicationName)
|
94 |
| { |
95 |
8
| _applicationId = applicationName;
|
96 |
| } |
97 |
| |
98 |
9
| public void setRequest(WebRequest request)
|
99 |
| { |
100 |
9
| _request = request;
|
101 |
| } |
102 |
| } |