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author | Scott Jackson <daneren2005@gmail.com> | 2012-07-02 21:24:02 -0700 |
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committer | Scott Jackson <daneren2005@gmail.com> | 2012-07-02 21:24:02 -0700 |
commit | a1a18f77a50804e0127dfa4b0f5240c49c541184 (patch) | |
tree | 19a38880afe505beddb5590379a8134d7730a277 /subsonic-main/src/main/java/net/sourceforge/subsonic/i18n/SubsonicLocaleResolver.java | |
parent | b61d787706979e7e20f4c3c4f93c1f129d92273f (diff) | |
download | dsub-a1a18f77a50804e0127dfa4b0f5240c49c541184.tar.gz dsub-a1a18f77a50804e0127dfa4b0f5240c49c541184.tar.bz2 dsub-a1a18f77a50804e0127dfa4b0f5240c49c541184.zip |
Initial Commit
Diffstat (limited to 'subsonic-main/src/main/java/net/sourceforge/subsonic/i18n/SubsonicLocaleResolver.java')
-rw-r--r-- | subsonic-main/src/main/java/net/sourceforge/subsonic/i18n/SubsonicLocaleResolver.java | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/subsonic-main/src/main/java/net/sourceforge/subsonic/i18n/SubsonicLocaleResolver.java b/subsonic-main/src/main/java/net/sourceforge/subsonic/i18n/SubsonicLocaleResolver.java new file mode 100644 index 00000000..231ad6e7 --- /dev/null +++ b/subsonic-main/src/main/java/net/sourceforge/subsonic/i18n/SubsonicLocaleResolver.java @@ -0,0 +1,104 @@ +/* + This file is part of Subsonic. + + Subsonic is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + Subsonic is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Subsonic. If not, see <http://www.gnu.org/licenses/>. + + Copyright 2009 (C) Sindre Mehus + */ +package net.sourceforge.subsonic.i18n; + +import net.sourceforge.subsonic.service.*; +import net.sourceforge.subsonic.domain.*; +import org.springframework.web.servlet.*; + +import javax.servlet.http.*; +import java.util.*; + +/** + * Locale resolver implementation which returns the locale selected in the settings. + * + * @author Sindre Mehus + */ +public class SubsonicLocaleResolver implements LocaleResolver { + + private SecurityService securityService; + private SettingsService settingsService; + private Set<Locale> locales; + + /** + * Resolve the current locale via the given request. + * + * @param request Request to be used for resolution. + * @return The current locale. + */ + public Locale resolveLocale(HttpServletRequest request) { + Locale locale = (Locale) request.getAttribute("subsonic.locale"); + if (locale != null) { + return locale; + } + + // Optimization: Cache locale in the request. + locale = doResolveLocale(request); + request.setAttribute("subsonic.locale", locale); + + return locale; + } + + private Locale doResolveLocale(HttpServletRequest request) { + Locale locale = null; + + // Look for user-specific locale. + String username = securityService.getCurrentUsername(request); + if (username != null) { + UserSettings userSettings = settingsService.getUserSettings(username); + if (userSettings != null) { + locale = userSettings.getLocale(); + } + } + + if (locale != null && localeExists(locale)) { + return locale; + } + + // Return system locale. + locale = settingsService.getLocale(); + return localeExists(locale) ? locale : Locale.ENGLISH; + } + + /** + * Returns whether the given locale exists. + * @param locale The locale. + * @return Whether the locale exists. + */ + private synchronized boolean localeExists(Locale locale) { + // Lazily create set of locales. + if (locales == null) { + locales = new HashSet<Locale>(Arrays.asList(settingsService.getAvailableLocales())); + } + + return locales.contains(locale); + } + + public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) { + throw new UnsupportedOperationException("Cannot change locale - use a different locale resolution strategy"); + } + + public void setSecurityService(SecurityService securityService) { + this.securityService = securityService; + } + + public void setSettingsService(SettingsService settingsService) { + this.settingsService = settingsService; + } +} |