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package eu.dnetlib.data.search.utils.vocabulary;
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import eu.dnetlib.data.search.transform.config.Configuration;
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import org.apache.log4j.Logger;
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import java.util.*;
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public class VocabularyManagerImpl implements VocabularyManager {
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private Configuration config = null;
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//key-> vocabulary name, value-> vocabulary loader
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private Map<String, VocabularyLoader> vocabularyLoaderMap = new HashMap<String, VocabularyLoader>();
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//key-> vocabulary name, value-> vocabulary item
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//this vocabulary class contains the fields needed to load the domain.Vocab object
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private Map<String, Vocabulary> vocabularyMap = new HashMap<String, Vocabulary>();
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//key-> vocabulary name, value-> vocabulary object per locale
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private Map<String, Map<Locale, eu.dnetlib.domain.enabling.Vocabulary>> pathMap = new HashMap<String, Map<Locale, eu.dnetlib.domain.enabling.Vocabulary>>();
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private List<String> indexVocabularies = new ArrayList<String>();
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private ISVocabularyLoader isVocabularyLoader;
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private IndexVocabularyLoader indexVocabularyLoader;
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private LocalVocabularyLoader localVocabularyLoader;
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private static Logger logger = Logger.getLogger(VocabularyManagerImpl.class);
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public void init() {
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for(String vocabularyName: config.getIsVocabularyMap().keySet()) {
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vocabularyLoaderMap.put(vocabularyName, isVocabularyLoader);
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vocabularyMap.put(vocabularyName, config.getIsVocabularyMap().get(vocabularyName));
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}
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for(String vocabularyName: config.getIndexVocabularyMap().keySet()) {
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vocabularyLoaderMap.put(vocabularyName, indexVocabularyLoader);
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vocabularyMap.put(vocabularyName, config.getIndexVocabularyMap().get(vocabularyName));
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indexVocabularies.add(vocabularyName);
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}
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for(String vocabularyName: config.getLocalVocabularyMap().keySet()) {
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vocabularyLoaderMap.put(vocabularyName, localVocabularyLoader);
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vocabularyMap.put(vocabularyName, config.getLocalVocabularyMap().get(vocabularyName));
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}
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}
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public String translate(String name, String l, String encoding, String default_value){
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Locale locale = new Locale(l);
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//logger.debug("Translating... " + name);
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eu.dnetlib.domain.enabling.Vocabulary vocabulary = getVocabulary(name, locale);
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if(vocabulary == null) {
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return (default_value.length() == 0)? encoding: default_value;
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}
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String term = vocabulary.getEnglishName(encoding);
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if(term != null && !term.trim().isEmpty()) {
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return term;
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}
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vocabulary = getVocabulary(name, config.getDefaultLocale());
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if(vocabulary == null) {
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return (default_value.length() == 0)? encoding: default_value;
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}
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term = vocabulary.getEnglishName(encoding);
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if(term != null && !term.trim().isEmpty()) {
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return term;
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}
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return (default_value.length() == 0)? encoding: default_value;
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}
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public eu.dnetlib.domain.enabling.Vocabulary getVocabulary(String vocabularyName, Locale locale) {
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eu.dnetlib.domain.enabling.Vocabulary myVocabulary = null;
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//if vocabulary loader does not exist, return null
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VocabularyLoader vocabularyLoader = vocabularyLoaderMap.get(vocabularyName);
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if (vocabularyLoader == null) {
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return null;
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}
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//if locale is not in the configuration file, change it with the default
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if (!config.getLocales().contains(locale)) {
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locale = config.getDefaultLocale();
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}
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//if it is an index vocabulary use the default locale only!
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if (indexVocabularies.contains(vocabularyName)) {
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locale = config.getDefaultLocale();
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}
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//if vocabulary does not exist, return null
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Vocabulary vocabulary = vocabularyMap.get(vocabularyName);
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if (vocabulary == null) {
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return null;
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}
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Map<Locale, eu.dnetlib.domain.enabling.Vocabulary> localePathMap = pathMap.get(vocabularyName);
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try {
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if (localePathMap == null) { //first time to load the vocabulary
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localePathMap = new HashMap<Locale, eu.dnetlib.domain.enabling.Vocabulary>();
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myVocabulary = vocabularyLoader.loadVocabulary(vocabulary, locale);
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localePathMap.put(locale, myVocabulary);
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pathMap.put(vocabularyName, localePathMap);
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} else {
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myVocabulary = localePathMap.get(locale);
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if (myVocabulary == null) { //first time to load the vocabulary for this locale
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myVocabulary = vocabularyLoader.loadVocabulary(vocabulary, locale);
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localePathMap.put(locale, myVocabulary);
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}
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}
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} catch (Exception e) {
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logger.error("Cannot load vocabulary " + vocabularyName + " with locale " + locale, e);
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}
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return myVocabulary;
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}
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public eu.dnetlib.domain.enabling.Vocabulary getVocabulary(String vocabularyName, Locale locale, boolean loadanyway) {
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eu.dnetlib.domain.enabling.Vocabulary myVocabulary = null;
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//if vocabulary loader does not exist, return null
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VocabularyLoader vocabularyLoader = vocabularyLoaderMap.get(vocabularyName);
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if (vocabularyLoader == null) {
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return null;
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}
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//if locale is not in the configuration file, change it with the default
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if (!config.getLocales().contains(locale)) {
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locale = config.getDefaultLocale();
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}
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//if it is an index vocabulary use the default locale only!
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if (indexVocabularies.contains(vocabularyName)) {
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locale = config.getDefaultLocale();
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}
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//if vocabulary does not exist, return null
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Vocabulary vocabulary = vocabularyMap.get(vocabularyName);
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//logger.debug("vocabulary map " + vocabularyMap.keySet());
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//logger.debug("loading vocabulary " + vocabularyName);
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//logger.debug("vocabulary " + vocabulary);
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if (vocabulary == null) {
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return null;
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}
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Map<Locale, eu.dnetlib.domain.enabling.Vocabulary> localePathMap = pathMap.get(vocabularyName);
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try {
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if (localePathMap == null) { //first time to load the vocabulary
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localePathMap = new HashMap<Locale, eu.dnetlib.domain.enabling.Vocabulary>();
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myVocabulary = vocabularyLoader.loadVocabulary(vocabulary, locale);
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localePathMap.put(locale, myVocabulary);
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pathMap.put(vocabularyName, localePathMap);
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} else {
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myVocabulary = localePathMap.get(locale);
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if (myVocabulary == null || loadanyway) { //first time to load the vocabulary for this locale, or load anyway
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myVocabulary = vocabularyLoader.loadVocabulary(vocabulary, locale);
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localePathMap.put(locale, myVocabulary);
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}
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}
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} catch (Exception e) {
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logger.error("Cannot load vocabulary " + vocabularyName + " with locale " + locale, e);
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}
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return myVocabulary;
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}
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public void setConfig(Configuration config) {
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this.config = config;
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}
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public void setIsVocabularyLoader(ISVocabularyLoader isVocabularyLoader) {
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this.isVocabularyLoader = isVocabularyLoader;
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}
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public void setIndexVocabularyLoader(IndexVocabularyLoader indexVocabularyLoader) {
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this.indexVocabularyLoader = indexVocabularyLoader;
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}
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public void setLocalVocabularyLoader(LocalVocabularyLoader localVocabularyLoader) {
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this.localVocabularyLoader = localVocabularyLoader;
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}
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public Map<String, Vocabulary> getVocabulariesMap(){
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return this.vocabularyMap;
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}
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@Override
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public Set<String> getVocabularyNames() {
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return this.vocabularyMap.keySet();
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}
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@Override
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public List<Locale> getLocales(){
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return this.config.getLocales();
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}
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}
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