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/**
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* Copyright (C) 2020 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.api.service.l10n;
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import java.util.Enumeration;
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import java.util.Hashtable;
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import java.util.List;
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import java.util.Locale;
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import java.util.Vector;
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import org.hibernate.HibernateException;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import eu.etaxonomy.cdm.api.service.ITermService;
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import eu.etaxonomy.cdm.model.common.Language;
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@Component
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public class LocaleContext {
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protected static ThreadLocal<Vector<Locale>> localesHolder = new ThreadLocal<Vector<Locale>>(){
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@Override
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protected Vector<Locale> initialValue() {
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return new Vector<>();
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}
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};
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protected static Hashtable<String, List<Language>> languageMap = new Hashtable<>();
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private ITermService termService;
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@Autowired
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public void setTermService(ITermService termService) {
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this.termService = termService;
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}
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public void setLocales(Enumeration<Locale> locales) {
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Vector<Locale> l = new Vector<>();
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while(locales.hasMoreElements()){
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l.add(locales.nextElement());
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}
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LocaleContext.localesHolder.set(l);
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mapToLanguages(l);
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}
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public static Enumeration<Locale> getLocales(){
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return localesHolder.get().elements();
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}
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public static List<Language> getLanguages(){
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String localesKey = composeLocalesKey(getLocales());
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return languageMap.get(localesKey);
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}
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private void mapToLanguages(Vector<Locale> locales) {
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String localesKey = composeLocalesKey(locales.elements());
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try {
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if (!languageMap.containsKey(localesKey)) {
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List<Language> languages = termService.getLanguagesByLocale(locales.elements());
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languageMap.put(localesKey, languages);
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}
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} catch (HibernateException e) {
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System.err.println("DEBUG: " + Thread.currentThread());
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e.printStackTrace(System.err);
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}
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}
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private static String composeLocalesKey(Enumeration<Locale> locales) {
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String localesKey = "";
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while(locales.hasMoreElements()){
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localesKey += locales.nextElement() + ",";
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}
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return localesKey;
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}
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}
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