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 | 0 | public class SessionScopeManager implements StateObjectPersistenceManager |
29 | |
{ |
30 | |
|
31 | |
private WebRequest _request; |
32 | |
|
33 | |
private String _applicationId; |
34 | |
|
35 | |
private String buildKey(String objectName) |
36 | |
{ |
37 | |
|
38 | |
|
39 | |
|
40 | |
|
41 | 0 | return "state:" + _applicationId + ":" + objectName; |
42 | |
} |
43 | |
|
44 | |
|
45 | |
|
46 | |
|
47 | |
|
48 | |
private WebSession getSession() |
49 | |
{ |
50 | 0 | return _request.getSession(true); |
51 | |
} |
52 | |
|
53 | |
public boolean exists(String objectName) |
54 | |
{ |
55 | 0 | WebSession session = _request.getSession(false); |
56 | |
|
57 | 0 | if (session == null) return false; |
58 | |
|
59 | 0 | return session.getAttribute(buildKey(objectName)) != null; |
60 | |
} |
61 | |
|
62 | |
public Object get(String objectName, StateObjectFactory factory) |
63 | |
{ |
64 | 0 | String key = buildKey(objectName); |
65 | 0 | WebSession session = getSession(); |
66 | |
|
67 | 0 | Object result = session.getAttribute(key); |
68 | 0 | if (result == null) |
69 | |
{ |
70 | 0 | result = factory.createStateObject(); |
71 | 0 | session.setAttribute(key, result); |
72 | |
} |
73 | |
|
74 | 0 | return result; |
75 | |
} |
76 | |
|
77 | |
public void store(String objectName, Object stateObject) |
78 | |
{ |
79 | 0 | if (stateObject instanceof SessionStoreOptimized) |
80 | |
{ |
81 | 0 | SessionStoreOptimized optimized = (SessionStoreOptimized) stateObject; |
82 | |
|
83 | 0 | if (!optimized.isStoreToSessionNeeded()) |
84 | 0 | return; |
85 | |
} |
86 | |
|
87 | 0 | String key = buildKey(objectName); |
88 | |
|
89 | 0 | WebSession session = getSession(); |
90 | |
|
91 | 0 | session.setAttribute(key, stateObject); |
92 | 0 | } |
93 | |
|
94 | |
public void setApplicationId(String applicationName) |
95 | |
{ |
96 | 0 | _applicationId = applicationName; |
97 | 0 | } |
98 | |
|
99 | |
public void setRequest(WebRequest request) |
100 | |
{ |
101 | 0 | _request = request; |
102 | 0 | } |
103 | |
} |