1 |
|
|
2 |
|
|
3 |
|
|
4 |
|
|
5 |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
13 |
|
|
14 |
|
|
15 |
|
package org.apache.tapestry.services.impl; |
16 |
|
|
17 |
|
import org.apache.hivemind.service.ThreadLocale; |
18 |
|
import org.apache.tapestry.TapestryConstants; |
19 |
|
import org.apache.tapestry.TapestryUtils; |
20 |
|
import org.apache.tapestry.services.CookieSource; |
21 |
|
import org.apache.tapestry.services.RequestLocaleManager; |
22 |
|
import org.apache.tapestry.web.WebRequest; |
23 |
|
|
24 |
|
import java.util.*; |
25 |
|
|
26 |
|
|
27 |
|
|
28 |
|
|
29 |
|
|
30 |
|
|
31 |
|
|
32 |
|
|
33 |
10 |
public class RequestLocaleManagerImpl implements RequestLocaleManager |
34 |
|
{ |
35 |
|
private WebRequest _request; |
36 |
|
|
37 |
|
|
38 |
|
|
39 |
|
|
40 |
|
|
41 |
|
|
42 |
|
|
43 |
|
private Locale _requestLocale; |
44 |
|
|
45 |
|
private CookieSource _cookieSource; |
46 |
|
|
47 |
|
private ThreadLocale _threadLocale; |
48 |
|
|
49 |
|
|
50 |
|
|
51 |
|
|
52 |
|
|
53 |
|
|
54 |
|
|
55 |
|
|
56 |
|
private String _acceptedLocales; |
57 |
|
|
58 |
|
private Locale _defaultLocale; |
59 |
|
|
60 |
|
|
61 |
|
|
62 |
|
|
63 |
|
|
64 |
10 |
private Set _acceptedLocaleNamesSet = new HashSet(); |
65 |
|
|
66 |
|
|
67 |
|
|
68 |
|
|
69 |
|
|
70 |
10 |
private Map _localeCache = new HashMap(); |
71 |
|
|
72 |
|
|
73 |
|
|
74 |
|
|
75 |
|
|
76 |
|
private Locale _lastPersisted; |
77 |
|
|
78 |
|
public void initializeService() |
79 |
|
{ |
80 |
2 |
String[] names = TapestryUtils.split(_acceptedLocales); |
81 |
|
|
82 |
2 |
if (names.length == 0) |
83 |
0 |
return; |
84 |
|
|
85 |
2 |
_defaultLocale = getLocale(names[0]); |
86 |
|
|
87 |
2 |
_acceptedLocaleNamesSet.addAll(Arrays.asList(names)); |
88 |
2 |
} |
89 |
|
|
90 |
|
public Locale extractLocaleForCurrentRequest() |
91 |
|
{ |
92 |
5 |
String localeName = _cookieSource.readCookieValue(TapestryConstants.LOCALE_COOKIE_NAME); |
93 |
|
|
94 |
5 |
String requestedLocale = (localeName != null) ? localeName : _request.getLocale().toString(); |
95 |
|
|
96 |
5 |
_requestLocale = filterRequestedLocale(requestedLocale); |
97 |
|
|
98 |
5 |
_threadLocale.setLocale(_requestLocale); |
99 |
|
|
100 |
5 |
return _requestLocale; |
101 |
|
} |
102 |
|
|
103 |
|
|
104 |
|
|
105 |
|
|
106 |
|
|
107 |
|
|
108 |
|
Locale filterRequestedLocale(String localeName) |
109 |
|
{ |
110 |
15 |
String requestLocaleName = localeName; |
111 |
15 |
if (_acceptedLocaleNamesSet.isEmpty()) |
112 |
6 |
return getLocale(requestLocaleName); |
113 |
|
|
114 |
18 |
while (requestLocaleName.length() > 0) |
115 |
|
{ |
116 |
14 |
if (_acceptedLocaleNamesSet.contains(requestLocaleName)) |
117 |
5 |
return getLocale(requestLocaleName); |
118 |
|
|
119 |
9 |
requestLocaleName = stripTerm(requestLocaleName); |
120 |
|
} |
121 |
|
|
122 |
|
|
123 |
|
|
124 |
4 |
for (Iterator it = _acceptedLocaleNamesSet.iterator(); it.hasNext();) |
125 |
|
{ |
126 |
7 |
String locale = (String) it.next(); |
127 |
|
|
128 |
7 |
if (locale.startsWith(localeName)) |
129 |
2 |
return getLocale(locale); |
130 |
5 |
} |
131 |
|
|
132 |
2 |
return _defaultLocale; |
133 |
|
} |
134 |
|
|
135 |
|
private String stripTerm(String localeName) |
136 |
|
{ |
137 |
9 |
int scorex = localeName.lastIndexOf('_'); |
138 |
|
|
139 |
9 |
return scorex < 0 ? "" : localeName.substring(0, scorex); |
140 |
|
} |
141 |
|
|
142 |
|
public void persistLocale() |
143 |
|
{ |
144 |
2 |
Locale locale = _threadLocale.getLocale(); |
145 |
|
|
146 |
2 |
if (locale.equals(_requestLocale) |
147 |
|
|| _lastPersisted != null && locale.equals(_lastPersisted)) |
148 |
1 |
return; |
149 |
|
|
150 |
1 |
_cookieSource.writeCookieValue(TapestryConstants.LOCALE_COOKIE_NAME, locale.toString()); |
151 |
1 |
_lastPersisted = locale; |
152 |
1 |
} |
153 |
|
|
154 |
|
Locale getLocale(String name) |
155 |
|
{ |
156 |
17 |
Locale result = (Locale) _localeCache.get(name); |
157 |
|
|
158 |
17 |
if (result == null) |
159 |
|
{ |
160 |
11 |
result = constructLocale(name); |
161 |
11 |
_localeCache.put(name, result); |
162 |
|
} |
163 |
|
|
164 |
17 |
return result; |
165 |
|
} |
166 |
|
|
167 |
|
private Locale constructLocale(String name) |
168 |
|
{ |
169 |
11 |
String[] terms = TapestryUtils.split(name, '_'); |
170 |
|
|
171 |
11 |
switch (terms.length) |
172 |
|
{ |
173 |
|
case 1: |
174 |
7 |
return new Locale(terms[0], ""); |
175 |
|
|
176 |
|
case 2: |
177 |
3 |
return new Locale(terms[0], terms[1]); |
178 |
|
|
179 |
|
case 3: |
180 |
|
|
181 |
1 |
return new Locale(terms[0], terms[1], terms[2]); |
182 |
|
|
183 |
|
default: |
184 |
|
|
185 |
0 |
throw new IllegalArgumentException(); |
186 |
|
} |
187 |
|
} |
188 |
|
|
189 |
|
public void setCookieSource(CookieSource source) |
190 |
|
{ |
191 |
6 |
_cookieSource = source; |
192 |
6 |
} |
193 |
|
|
194 |
|
public void setRequest(WebRequest request) |
195 |
|
{ |
196 |
2 |
_request = request; |
197 |
2 |
} |
198 |
|
|
199 |
|
public void setThreadLocale(ThreadLocale threadLocale) |
200 |
|
{ |
201 |
6 |
_threadLocale = threadLocale; |
202 |
6 |
} |
203 |
|
|
204 |
|
public void setAcceptedLocales(String acceptedLocales) |
205 |
|
{ |
206 |
2 |
_acceptedLocales = acceptedLocales; |
207 |
2 |
} |
208 |
|
} |