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package org.apache.tapestry.services.impl; |
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import org.apache.hivemind.service.ThreadLocale; |
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import org.apache.tapestry.TapestryConstants; |
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import org.apache.tapestry.TapestryUtils; |
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import org.apache.tapestry.services.CookieSource; |
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import org.apache.tapestry.services.RequestLocaleManager; |
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import org.apache.tapestry.web.WebRequest; |
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import java.util.*; |
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33 | 0 | public class RequestLocaleManagerImpl implements RequestLocaleManager |
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{ |
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private WebRequest _request; |
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private Locale _requestLocale; |
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private CookieSource _cookieSource; |
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private ThreadLocale _threadLocale; |
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private String _acceptedLocales; |
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private Locale _defaultLocale; |
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64 | 0 | private Set _acceptedLocaleNamesSet = new HashSet(); |
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70 | 0 | private Map _localeCache = new HashMap(); |
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private Locale _lastPersisted; |
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public void initializeService() |
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{ |
80 | 0 | String[] names = TapestryUtils.split(_acceptedLocales); |
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82 | 0 | if (names.length == 0) |
83 | 0 | return; |
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85 | 0 | _defaultLocale = getLocale(names[0]); |
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87 | 0 | _acceptedLocaleNamesSet.addAll(Arrays.asList(names)); |
88 | 0 | } |
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public Locale extractLocaleForCurrentRequest() |
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{ |
92 | 0 | String localeName = _cookieSource.readCookieValue(TapestryConstants.LOCALE_COOKIE_NAME); |
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94 | 0 | String requestedLocale = (localeName != null) ? localeName : _request.getLocale().toString(); |
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96 | 0 | _requestLocale = filterRequestedLocale(requestedLocale); |
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98 | 0 | _threadLocale.setLocale(_requestLocale); |
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100 | 0 | return _requestLocale; |
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} |
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Locale filterRequestedLocale(String localeName) |
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{ |
110 | 0 | String requestLocaleName = localeName; |
111 | 0 | if (_acceptedLocaleNamesSet.isEmpty()) |
112 | 0 | return getLocale(requestLocaleName); |
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114 | 0 | while (requestLocaleName.length() > 0) |
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{ |
116 | 0 | if (_acceptedLocaleNamesSet.contains(requestLocaleName)) |
117 | 0 | return getLocale(requestLocaleName); |
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119 | 0 | requestLocaleName = stripTerm(requestLocaleName); |
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} |
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124 | 0 | for (Iterator it = _acceptedLocaleNamesSet.iterator(); it.hasNext();) |
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{ |
126 | 0 | String locale = (String) it.next(); |
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128 | 0 | if (locale.startsWith(localeName)) |
129 | 0 | return getLocale(locale); |
130 | 0 | } |
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132 | 0 | return _defaultLocale; |
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} |
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private String stripTerm(String localeName) |
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{ |
137 | 0 | int scorex = localeName.lastIndexOf('_'); |
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139 | 0 | return scorex < 0 ? "" : localeName.substring(0, scorex); |
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} |
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public void persistLocale() |
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{ |
144 | 0 | Locale locale = _threadLocale.getLocale(); |
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146 | 0 | if (locale.equals(_requestLocale) |
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|| _lastPersisted != null && locale.equals(_lastPersisted)) |
148 | 0 | return; |
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150 | 0 | _cookieSource.writeCookieValue(TapestryConstants.LOCALE_COOKIE_NAME, locale.toString()); |
151 | 0 | _lastPersisted = locale; |
152 | 0 | } |
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Locale getLocale(String name) |
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{ |
156 | 0 | Locale result = (Locale) _localeCache.get(name); |
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158 | 0 | if (result == null) |
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{ |
160 | 0 | result = constructLocale(name); |
161 | 0 | _localeCache.put(name, result); |
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} |
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164 | 0 | return result; |
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} |
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private Locale constructLocale(String name) |
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{ |
169 | 0 | String[] terms = TapestryUtils.split(name, '_'); |
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171 | 0 | switch (terms.length) |
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{ |
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case 1: |
174 | 0 | return new Locale(terms[0], ""); |
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case 2: |
177 | 0 | return new Locale(terms[0], terms[1]); |
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case 3: |
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181 | 0 | return new Locale(terms[0], terms[1], terms[2]); |
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default: |
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185 | 0 | throw new IllegalArgumentException(); |
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} |
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} |
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public void setCookieSource(CookieSource source) |
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{ |
191 | 0 | _cookieSource = source; |
192 | 0 | } |
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public void setRequest(WebRequest request) |
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{ |
196 | 0 | _request = request; |
197 | 0 | } |
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public void setThreadLocale(ThreadLocale threadLocale) |
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{ |
201 | 0 | _threadLocale = threadLocale; |
202 | 0 | } |
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public void setAcceptedLocales(String acceptedLocales) |
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{ |
206 | 0 | _acceptedLocales = acceptedLocales; |
207 | 0 | } |
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} |