1 |
|
|
2 |
|
|
3 |
|
|
4 |
|
|
5 |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
13 |
|
|
14 |
|
|
15 |
|
package org.apache.tapestry.services.impl; |
16 |
|
|
17 |
|
import java.util.HashMap; |
18 |
|
import java.util.Map; |
19 |
|
|
20 |
|
import org.apache.hivemind.ErrorLog; |
21 |
|
import org.apache.hivemind.Location; |
22 |
|
import org.apache.hivemind.internal.Module; |
23 |
|
import org.apache.hivemind.service.ObjectProvider; |
24 |
|
import org.apache.hivemind.util.PropertyUtils; |
25 |
|
import org.apache.tapestry.services.Infrastructure; |
26 |
|
|
27 |
|
|
28 |
|
|
29 |
|
|
30 |
|
|
31 |
|
|
32 |
|
|
33 |
|
|
34 |
|
|
35 |
|
|
36 |
1 |
public class InfrastructureObjectProvider implements ObjectProvider |
37 |
|
{ |
38 |
|
private ErrorLog _errorLog; |
39 |
|
|
40 |
|
private Infrastructure _infrastructure; |
41 |
|
|
42 |
1 |
private Map _cache = new HashMap(); |
43 |
|
|
44 |
|
public synchronized Object provideObject(Module contributingModule, Class propertyType, |
45 |
|
String locator, Location location) |
46 |
|
{ |
47 |
1 |
Object result = _cache.get(locator); |
48 |
|
|
49 |
1 |
if (result == null) |
50 |
|
{ |
51 |
1 |
result = readProperty(locator, location); |
52 |
1 |
_cache.put(locator, result); |
53 |
|
} |
54 |
|
|
55 |
1 |
return result; |
56 |
|
} |
57 |
|
|
58 |
|
Object readProperty(String locator, Location location) |
59 |
|
{ |
60 |
|
try |
61 |
|
{ |
62 |
1 |
if (PropertyUtils.isReadable(_infrastructure, locator)) |
63 |
1 |
return PropertyUtils.read(_infrastructure, locator); |
64 |
|
|
65 |
0 |
return _infrastructure.getProperty(locator); |
66 |
|
} |
67 |
0 |
catch (Throwable ex) |
68 |
|
{ |
69 |
0 |
_errorLog.error(ImplMessages.unableToReadInfrastructureProperty( |
70 |
|
locator, |
71 |
|
_infrastructure, |
72 |
|
ex), location, ex); |
73 |
|
|
74 |
0 |
return null; |
75 |
|
} |
76 |
|
} |
77 |
|
|
78 |
|
public void setErrorLog(ErrorLog errorLog) |
79 |
|
{ |
80 |
0 |
_errorLog = errorLog; |
81 |
0 |
} |
82 |
|
|
83 |
|
public void setInfrastructure(Infrastructure infrastructure) |
84 |
|
{ |
85 |
1 |
_infrastructure = infrastructure; |
86 |
1 |
} |
87 |
|
|
88 |
|
} |