CCM NG/ccm-cms: Missing class
git-svn-id: https://svn.libreccm.org/ccm/ccm_ng@4452 8810af33-2d31-482b-a856-94f89814c4dfpull/2/head
jensp
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/*
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* Copyright (C) 2016 LibreCCM Foundation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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package org.librecms.util;
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import com.arsdigita.globalization.GlobalizedMessage;
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import com.arsdigita.kernel.KernelConfig;
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import com.arsdigita.util.Pair;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Locale;
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import java.util.MissingResourceException;
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import java.util.ResourceBundle;
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import java.util.stream.Collectors;
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import javax.annotation.PostConstruct;
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import javax.enterprise.context.RequestScoped;
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import javax.inject.Inject;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.libreccm.configuration.ConfigurationManager;
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import org.libreccm.l10n.GlobalizationHelper;
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/**
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*
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* @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
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*/
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@RequestScoped
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public class LanguageUtil {
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private static final Logger LOGGER = LogManager.
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getLogger(LanguageUtil.class);
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@Inject
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private GlobalizationHelper globalizationHelper;
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/**
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* Mapping from the ISO639-1 2-letter codes to the ISO639-2 3-letter codes
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*/
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private static final String ISO639_2LA_3LA = "com.arsdigita.cms.util.iso639rev";
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private static final ResourceBundle LANG_3LA = ResourceBundle.getBundle(
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ISO639_2LA_3LA);
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/**
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* Mapping from the ISO639-1 2-letter codes to the full descriptive name
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*/
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private static final String ISO639_2LA_FULL = "com.arsdigita.cms.util.iso639full";
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private static final ResourceBundle LANG_FULL = ResourceBundle.getBundle(
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ISO639_2LA_FULL);
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@Inject
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private ConfigurationManager confManager;
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private List<Locale> supportedLanguages;
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@PostConstruct
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private void init() {
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final KernelConfig kernelConfig = confManager.findConfiguration(
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KernelConfig.class);
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supportedLanguages = kernelConfig.getSupportedLanguages()
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.stream()
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.map(language -> new Locale(language))
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.collect(Collectors.toList());
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}
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public GlobalizedMessage globalizedLanguageName(final String key) {
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return new GlobalizedMessage(key, ISO639_2LA_FULL);
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}
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public List<Locale> getSupportedLanguages() {
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return supportedLanguages;
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}
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/**
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* Returns a list of the 2 letter language codes of all supported languages.
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*
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* @return all supported languages
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*/
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public List<String> getSupportedLanguages2LA() {
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return getSupportedLanguages().stream()
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.map(locale -> locale.getLanguage())
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.collect(Collectors.toList());
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}
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/**
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* Returns the collection of all supported languages. Each entry is a pair
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* of 2 letter code as key and three letter code as value.
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*
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* @return all supported languages
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*/
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public List<Pair> getSupportedLanguages3LA() {
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return getSupportedLanguages().stream()
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.map(locale -> new Pair(locale.getLanguage(),
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locale.getISO3Language()))
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.collect(Collectors.toList());
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}
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/**
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* Returns the collection of all supported languages. Each entry is a pair
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* of 2 letter code as key and full language name as a value.
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*
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* @return all supported languages
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*/
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public List<Pair> getSupportedLanguagesFull() {
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return getSupportedLanguages().stream()
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.map(locale -> new Pair(locale.getLanguage(),
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getLangFull(locale)))
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.collect(Collectors.toList());
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}
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/**
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* Returns three letter acronym for language code mapped from two letter
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* code.
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*
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* @param lang
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* @return three letter code for the two letter code. If the resource is not
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* found then the key itself is returned.
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*/
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public String getLang3LA(final String lang) {
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String threeLA;
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try {
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// Lookup 3-letter language code via java.util.Locale
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threeLA = (new Locale(lang)).getISO3Language();
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} catch (MissingResourceException ex) {
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LOGGER.warn("No 3 letter code for \"{}\" available via "
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+ "Locale#getISO3Language.",
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lang);
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LOGGER.warn(ex);
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// If there is none
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try {
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// Lookup 3-letter code via ressource bundle
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threeLA = LANG_3LA.getString(lang);
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} catch (MissingResourceException mex) {
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// if there is still no match, log a warning and return the 2-letter code
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LOGGER.warn("No 3 letter language code for key \"{}\" found.",
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lang);
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LOGGER.warn(ex);
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threeLA = lang;
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}
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}
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return threeLA;
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}
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/**
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* Returns the full language name mapped from the two letter acronym.
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*
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* @param lang 2 letter language code
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*
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* @return full language name for the given two letter code If the resource
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* is not found then the key itself is returned.
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*/
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public String getLangFull(final Locale lang) {
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// Lookup language name via java.util.Locale
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String fullName = (lang.getDisplayLanguage(
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globalizationHelper.getNegotiatedLocale()));
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if (lang.getLanguage().equals(fullName)) {
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// If that fails
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try {
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// Lookup language name vie ressource bundle
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fullName = LANG_FULL.getString(lang.getLanguage());
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} catch (MissingResourceException ex) {
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// If there is still nomatch, log a warning and return 2-letter code
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LOGGER.warn("Full language name for key \"{}\" not found.",
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lang);
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LOGGER.warn(ex);
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fullName = lang.getLanguage();
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}
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}
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return fullName;
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}
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public String getLangFull(final String lang) {
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return getLangFull(new Locale(lang));
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}
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/**
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* Takes in a list of 2 letter codes and converts into 3 letter codes. Each
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* entry is pair of 2 letter code as key and 3 letter code as value.
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*
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* @param list
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* @return
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*/
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public List<Pair> convertTo3LA(final List<String> list) {
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return list.stream()
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.map(lang2Code -> new Pair(lang2Code, getLang3LA(lang2Code)))
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.collect(Collectors.toList());
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}
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public List<Pair> convertToFull(final List<String> list) {
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return list.stream()
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.map(lang2Code -> new Pair(lang2Code, getLangFull(lang2Code)))
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.collect(Collectors.toList());
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}
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public List<Pair> convertToG11N(final List<String> list) {
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return list.stream()
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.map(lang2Code -> new Pair(lang2Code,
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globalizedLanguageName(lang2Code)))
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.collect(Collectors.toList());
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}
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}
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