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

Sun, 08 Apr 2018 16:51:15 +0200

author
Mike Becker <universe@uap-core.de>
date
Sun, 08 Apr 2018 16:51:15 +0200
changeset 28
cfc3d11884ad
parent 24
8137ec335416
permissions
-rw-r--r--

smaller main menu with better main menu buttons

7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
1 /*
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
3 *
24
8137ec335416 updates copyright header
Mike Becker <universe@uap-core.de>
parents: 15
diff changeset
4 * Copyright 2018 Mike Becker. All rights reserved.
7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
5 *
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
6 * Redistribution and use in source and binary forms, with or without
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
7 * modification, are permitted provided that the following conditions are met:
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
8 *
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
9 * 1. Redistributions of source code must retain the above copyright
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
10 * notice, this list of conditions and the following disclaimer.
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
11 *
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
12 * 2. Redistributions in binary form must reproduce the above copyright
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
13 * notice, this list of conditions and the following disclaimer in the
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
14 * documentation and/or other materials provided with the distribution.
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
15 *
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
26 * POSSIBILITY OF SUCH DAMAGE.
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
27 *
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
28 */
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
29 package de.uapcore.lightpit.modules;
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
30
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
31 import de.uapcore.lightpit.LightPITModule;
9
20a9b2bc9063 makes LightPITServlet abstract
Mike Becker <universe@uap-core.de>
parents: 7
diff changeset
32 import de.uapcore.lightpit.AbstractLightPITServlet;
15
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
33 import de.uapcore.lightpit.Constants;
13
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
34 import de.uapcore.lightpit.Functions;
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
35 import de.uapcore.lightpit.HttpMethod;
7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
36 import javax.servlet.annotation.WebServlet;
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
37 import javax.servlet.http.HttpServletRequest;
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
38 import javax.servlet.http.HttpServletResponse;
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
39 import de.uapcore.lightpit.RequestMapping;
12
005d27918b57 implements ResponseTypes
Mike Becker <universe@uap-core.de>
parents: 11
diff changeset
40 import de.uapcore.lightpit.ResponseType;
13
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
41 import java.util.ArrayList;
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
42 import java.util.IllformedLocaleException;
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
43 import java.util.List;
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
44 import java.util.Locale;
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
45 import java.util.Optional;
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
46 import javax.servlet.ServletException;
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
47 import org.slf4j.Logger;
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
48 import org.slf4j.LoggerFactory;
7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
49
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
50
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
51 @LightPITModule(
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
52 bundleBaseName = "de.uapcore.lightpit.resources.localization.language",
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
53 modulePath = "language"
7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
54 )
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
55 @WebServlet(
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
56 name = "LanguageModule",
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
57 urlPatterns = "/language/*"
7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
58 )
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
59 public final class LanguageModule extends AbstractLightPITServlet {
7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
60
13
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
61 private static final Logger LOG = LoggerFactory.getLogger(LanguageModule.class);
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
62
15
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
63 private final List<Locale> languages = new ArrayList<>();
13
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
64
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
65 @Override
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
66 public void init() throws ServletException {
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
67 super.init();
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
68
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
69 Optional<String[]> langs = Functions.availableLanguages(getServletContext());
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
70 if (langs.isPresent()) {
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
71 for (String lang : langs.get()) {
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
72 try {
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
73 Locale locale = Locale.forLanguageTag(lang);
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
74 if (locale.getLanguage().isEmpty()) {
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
75 throw new IllformedLocaleException();
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
76 }
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
77 languages.add(locale);
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
78 } catch (IllformedLocaleException ex) {
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
79 LOG.warn("Specified lanaguge {} in context parameter cannot be mapped to an existing locale - skipping.", lang);
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
80 }
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
81 }
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
82
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
83 } else {
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
84 languages.add(Locale.ENGLISH);
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
85 LOG.warn("Context parameter 'available-languges' not found. Only english will be available.");
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
86 }
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
87 }
15
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
88
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
89 @Override
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
90 public void destroy() {
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
91 super.destroy();
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
92 languages.clear();
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
93 }
13
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
94
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
95 @RequestMapping(method = HttpMethod.GET)
12
005d27918b57 implements ResponseTypes
Mike Becker <universe@uap-core.de>
parents: 11
diff changeset
96 public ResponseType handle(HttpServletRequest req, HttpServletResponse resp) {
13
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
97
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
98 req.setAttribute("languages", languages);
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
99 req.setAttribute("browserLanguage", req.getLocale());
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
100
13
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
101 setStylesheet(req, "language");
f4608ad6c947 adds dynamic fragments to LightPIT request handling framework + basic language recognition code
Mike Becker <universe@uap-core.de>
parents: 12
diff changeset
102 setDynamicFragment(req, "language");
12
005d27918b57 implements ResponseTypes
Mike Becker <universe@uap-core.de>
parents: 11
diff changeset
103 return ResponseType.HTML_FULL;
11
737ab27e37b3 implements simple request mapper
Mike Becker <universe@uap-core.de>
parents: 10
diff changeset
104 }
15
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
105
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
106 @RequestMapping(method = HttpMethod.POST)
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
107 public ResponseType switchLanguage(HttpServletRequest req, HttpServletResponse resp) {
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
108
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
109 Optional<Locale> chosenLanguage = Optional.ofNullable(req.getParameter("language"))
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
110 .map(Locale::forLanguageTag)
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
111 .filter((l) -> !l.getLanguage().isEmpty());
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
112
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
113 chosenLanguage.ifPresent((l) -> req.getSession().setAttribute(Constants.SESSION_ATTR_LANGUAGE, l));
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
114 chosenLanguage.ifPresent(resp::setLocale);
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
115
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
116 return handle(req, resp);
bb594abac796 language selector completed
Mike Becker <universe@uap-core.de>
parents: 14
diff changeset
117 }
7
598670d5b0b8 core functionality should also use the modules system, changed the code structure accordingly
Mike Becker <universe@uap-core.de>
parents:
diff changeset
118 }

mercurial