Tue, 26 Dec 2017 17:36:47 +0100
adds dynamic fragments to LightPIT request handling framework + basic language recognition code
universe@7 | 1 | /* |
universe@7 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@7 | 3 | * |
universe@7 | 4 | * Copyright 2017 Mike Becker. All rights reserved. |
universe@7 | 5 | * |
universe@7 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@7 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@7 | 8 | * |
universe@7 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@7 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@7 | 11 | * |
universe@7 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@7 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@7 | 14 | * documentation and/or other materials provided with the distribution. |
universe@7 | 15 | * |
universe@7 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@7 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@7 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@7 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@7 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@7 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@7 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@7 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@7 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@7 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@7 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@7 | 27 | * |
universe@7 | 28 | */ |
universe@7 | 29 | package de.uapcore.lightpit.modules; |
universe@7 | 30 | |
universe@7 | 31 | import de.uapcore.lightpit.LightPITModule; |
universe@9 | 32 | import de.uapcore.lightpit.AbstractLightPITServlet; |
universe@13 | 33 | import de.uapcore.lightpit.Constants; |
universe@13 | 34 | import de.uapcore.lightpit.Functions; |
universe@11 | 35 | import de.uapcore.lightpit.HttpMethod; |
universe@7 | 36 | import javax.servlet.annotation.WebServlet; |
universe@11 | 37 | import javax.servlet.http.HttpServletRequest; |
universe@11 | 38 | import javax.servlet.http.HttpServletResponse; |
universe@11 | 39 | import de.uapcore.lightpit.RequestMapping; |
universe@12 | 40 | import de.uapcore.lightpit.ResponseType; |
universe@13 | 41 | import java.util.ArrayList; |
universe@13 | 42 | import java.util.IllformedLocaleException; |
universe@13 | 43 | import java.util.List; |
universe@13 | 44 | import java.util.Locale; |
universe@13 | 45 | import java.util.Optional; |
universe@13 | 46 | import javax.servlet.ServletException; |
universe@13 | 47 | import org.slf4j.Logger; |
universe@13 | 48 | import org.slf4j.LoggerFactory; |
universe@7 | 49 | |
universe@7 | 50 | |
universe@7 | 51 | @LightPITModule( |
universe@11 | 52 | bundleBaseName = "de.uapcore.lightpit.resources.localization.language", |
universe@11 | 53 | modulePath = "language" |
universe@7 | 54 | ) |
universe@7 | 55 | @WebServlet( |
universe@11 | 56 | name = "LanguageModule", |
universe@11 | 57 | urlPatterns = "/language/*" |
universe@7 | 58 | ) |
universe@11 | 59 | public final class LanguageModule extends AbstractLightPITServlet { |
universe@7 | 60 | |
universe@13 | 61 | private static final Logger LOG = LoggerFactory.getLogger(LanguageModule.class); |
universe@13 | 62 | |
universe@13 | 63 | private List<Locale> languages = new ArrayList<>(); |
universe@13 | 64 | |
universe@13 | 65 | @Override |
universe@13 | 66 | public void init() throws ServletException { |
universe@13 | 67 | super.init(); |
universe@13 | 68 | |
universe@13 | 69 | Optional<String[]> langs = Functions.availableLanguages(getServletContext()); |
universe@13 | 70 | if (langs.isPresent()) { |
universe@13 | 71 | for (String lang : langs.get()) { |
universe@13 | 72 | try { |
universe@13 | 73 | Locale locale = Locale.forLanguageTag(lang); |
universe@13 | 74 | if (locale.getLanguage().isEmpty()) { |
universe@13 | 75 | throw new IllformedLocaleException(); |
universe@13 | 76 | } |
universe@13 | 77 | languages.add(locale); |
universe@13 | 78 | } catch (IllformedLocaleException ex) { |
universe@13 | 79 | LOG.warn("Specified lanaguge {} in context parameter cannot be mapped to an existing locale - skipping.", lang); |
universe@13 | 80 | } |
universe@13 | 81 | } |
universe@13 | 82 | |
universe@13 | 83 | } else { |
universe@13 | 84 | languages.add(Locale.ENGLISH); |
universe@13 | 85 | LOG.warn("Context parameter 'available-languges' not found. Only english will be available."); |
universe@13 | 86 | } |
universe@13 | 87 | } |
universe@13 | 88 | |
universe@11 | 89 | @RequestMapping(method = HttpMethod.GET) |
universe@12 | 90 | public ResponseType handle(HttpServletRequest req, HttpServletResponse resp) { |
universe@13 | 91 | |
universe@13 | 92 | req.setAttribute("languages", languages); |
universe@13 | 93 | req.setAttribute("browserLanguage", req.getLocale()); |
universe@11 | 94 | |
universe@13 | 95 | setStylesheet(req, "language"); |
universe@13 | 96 | setDynamicFragment(req, "language"); |
universe@12 | 97 | return ResponseType.HTML_FULL; |
universe@11 | 98 | } |
universe@7 | 99 | } |