LightPIT: src/java/de/uapcore/lightpit/modules/LanguageModule.java@8137ec335416 (annotated)

src/java/de/uapcore/lightpit/modules/LanguageModule.java@8137ec335416 (annotated)

src/java/de/uapcore/lightpit/modules/LanguageModule.java

Sun, 08 Apr 2018 14:40:57 +0200

author: Mike Becker <universe@uap-core.de>
date: Sun, 08 Apr 2018 14:40:57 +0200
changeset 24: 8137ec335416
parent 15: bb594abac796
permissions: -rw-r--r--

updates copyright header

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2018 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
  */
 package de.uapcore.lightpit.modules;
 import de.uapcore.lightpit.LightPITModule;
 import de.uapcore.lightpit.AbstractLightPITServlet;
 import de.uapcore.lightpit.Constants;
 import de.uapcore.lightpit.Functions;
 import de.uapcore.lightpit.HttpMethod;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import de.uapcore.lightpit.RequestMapping;
 import de.uapcore.lightpit.ResponseType;
 import java.util.ArrayList;
 import java.util.IllformedLocaleException;
 import java.util.List;
 import java.util.Locale;
 import java.util.Optional;
 import javax.servlet.ServletException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 @LightPITModule(
         bundleBaseName = "de.uapcore.lightpit.resources.localization.language",
         modulePath = "language"
 )
 @WebServlet(
         name = "LanguageModule",
         urlPatterns = "/language/*"
 )
 public final class LanguageModule extends AbstractLightPITServlet {
     private static final Logger LOG = LoggerFactory.getLogger(LanguageModule.class);
     private final List<Locale> languages = new ArrayList<>();
     @Override
     public void init() throws ServletException {
         super.init();
         Optional<String[]> langs = Functions.availableLanguages(getServletContext());
         if (langs.isPresent()) {
             for (String lang : langs.get()) {
                 try {
                     Locale locale = Locale.forLanguageTag(lang);
                     if (locale.getLanguage().isEmpty()) {
                         throw new IllformedLocaleException();
                     }
                     languages.add(locale);
                 } catch (IllformedLocaleException ex) {
                     LOG.warn("Specified lanaguge {} in context parameter cannot be mapped to an existing locale - skipping.", lang);
                 }
             }
         } else {
             languages.add(Locale.ENGLISH);
             LOG.warn("Context parameter 'available-languges' not found. Only english will be available.");
         }
     }
     @Override
     public void destroy() {
         super.destroy();
         languages.clear();
     }
     @RequestMapping(method = HttpMethod.GET)
     public ResponseType handle(HttpServletRequest req, HttpServletResponse resp) {
         req.setAttribute("languages", languages);
         req.setAttribute("browserLanguage", req.getLocale());
         setStylesheet(req, "language");
         setDynamicFragment(req, "language");
         return ResponseType.HTML_FULL;
     }
     @RequestMapping(method = HttpMethod.POST)
     public ResponseType switchLanguage(HttpServletRequest req, HttpServletResponse resp) {
         Optional<Locale> chosenLanguage = Optional.ofNullable(req.getParameter("language"))
                 .map(Locale::forLanguageTag)
                 .filter((l) -> !l.getLanguage().isEmpty());
         chosenLanguage.ifPresent((l) -> req.getSession().setAttribute(Constants.SESSION_ATTR_LANGUAGE, l));
         chosenLanguage.ifPresent(resp::setLocale);
         return handle(req, resp);
     }
 }

Mercurial > hg > LightPIT / annotate

src/java/de/uapcore/lightpit/modules/LanguageModule.java@8137ec335416 (annotated)

src/java/de/uapcore/lightpit/modules/LanguageModule.java