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package eu.etaxonomy.cdm.persistence.dao.hibernate.description;
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import java.util.ArrayList;
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import java.util.List;
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import org.apache.lucene.analysis.SimpleAnalyzer;
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import org.apache.lucene.queryParser.ParseException;
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import org.apache.lucene.queryParser.QueryParser;
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import org.apache.lucene.search.Sort;
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import org.apache.lucene.search.SortField;
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import org.hibernate.Hibernate;
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import org.hibernate.Query;
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import org.hibernate.envers.query.AuditQuery;
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import org.hibernate.search.FullTextSession;
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import org.hibernate.search.Search;
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import org.hibernate.search.SearchFactory;
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import org.springframework.stereotype.Repository;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.TextData;
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import eu.etaxonomy.cdm.model.media.Media;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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import eu.etaxonomy.cdm.model.view.AuditEvent;
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import eu.etaxonomy.cdm.persistence.dao.QueryParseException;
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import eu.etaxonomy.cdm.persistence.dao.description.IDescriptionElementDao;
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import eu.etaxonomy.cdm.persistence.dao.hibernate.common.AnnotatableDaoImpl;
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import eu.etaxonomy.cdm.persistence.query.OrderHint;
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@Repository
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public class DescriptionElementDaoImpl extends AnnotatableDaoImpl<DescriptionElementBase> implements IDescriptionElementDao {
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private String defaultField = "multilanguageText.text";
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private Class<? extends DescriptionElementBase> indexedClasses[];
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public DescriptionElementDaoImpl() {
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super(DescriptionElementBase.class);
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indexedClasses = new Class[1];
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indexedClasses[0] = TextData.class;
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}
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public int countMedia(DescriptionElementBase descriptionElement) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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Query query = getSession().createQuery("select count(media) from DescriptionElementBase descriptionElement join descriptionElement.media media where descriptionElement = :descriptionElement");
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query.setParameter("descriptionElement", descriptionElement);
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return ((Long)query.uniqueResult()).intValue();
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} else {
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// Horribly inefficient, I know, but hard to do at the moment with envers.
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// FIXME Improve this (by improving envers)
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List<String> propertyPaths = new ArrayList<String>();
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propertyPaths.add("media");
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DescriptionElementBase d = super.load(descriptionElement.getUuid(), propertyPaths);
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return d.getMedia().size();
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}
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}
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public int count(Class<? extends DescriptionElementBase> clazz, String queryString) {
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checkNotInPriorView("DescriptionElementDaoImpl.countTextData(String queryString)");
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QueryParser queryParser = new QueryParser(defaultField, new SimpleAnalyzer());
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try {
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org.apache.lucene.search.Query query = queryParser.parse(queryString);
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FullTextSession fullTextSession = Search.getFullTextSession(getSession());
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org.hibernate.search.FullTextQuery fullTextQuery = null;
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if(clazz == null) {
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fullTextQuery = fullTextSession.createFullTextQuery(query, type);
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} else {
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fullTextQuery = fullTextSession.createFullTextQuery(query, clazz);
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}
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return fullTextQuery.getResultSize();
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} catch (ParseException e) {
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throw new QueryParseException(e, queryString);
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}
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}
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public List<Media> getMedia(DescriptionElementBase descriptionElement, Integer pageSize, Integer pageNumber, List<String> propertyPaths) {
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AuditEvent auditEvent = getAuditEventFromContext();
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if(auditEvent.equals(AuditEvent.CURRENT_VIEW)) {
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Query query = getSession().createQuery("select media from DescriptionElementBase descriptionElement join descriptionElement.media media where descriptionElement = :descriptionElement order by index(media)");
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query.setParameter("descriptionElement", descriptionElement);
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if(pageSize != null) {
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query.setMaxResults(pageSize);
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if(pageNumber != null) {
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query.setFirstResult(pageNumber * pageSize);
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} else {
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query.setFirstResult(0);
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}
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}
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List<Media> results = (List<Media>)query.list();
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defaultBeanInitializer.initializeAll(results, propertyPaths);
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return results;
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} else {
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// Horribly inefficient, I know, but hard to do at the moment with envers.
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// FIXME Improve this (by improving envers)
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List<String> pPaths = new ArrayList<String>();
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propertyPaths.add("media");
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DescriptionElementBase d = super.load(descriptionElement.getUuid(), pPaths);
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List<Media> results = new ArrayList<Media>();
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results.addAll(d.getMedia());
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if(pageSize != null) {
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int fromIndex = 0;
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int toIndex = 0;
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if(pageNumber != null) {
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// if the page is out of scope
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if(results.size() < (pageNumber * pageSize)) {
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return new ArrayList<Media>();
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}
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fromIndex = pageNumber * pageSize;
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}
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toIndex = results.size() < (fromIndex + pageSize) ? results.size() : fromIndex + pageSize;
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results = results.subList(fromIndex, toIndex);
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}
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defaultBeanInitializer.initializeAll(results, propertyPaths);
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return results;
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}
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}
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public List<DescriptionElementBase> search(Class<? extends DescriptionElementBase> clazz, String queryString, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths) {
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checkNotInPriorView("DescriptionElementDaoImpl.searchTextData(String queryString, Integer pageSize, Integer pageNumber)");
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QueryParser queryParser = new QueryParser(defaultField, new SimpleAnalyzer());
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try {
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org.apache.lucene.search.Query query = queryParser.parse(queryString);
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org.hibernate.search.FullTextQuery fullTextQuery = null;
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FullTextSession fullTextSession = Search.getFullTextSession(getSession());
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if(clazz == null) {
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fullTextQuery = fullTextSession.createFullTextQuery(query, type);
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} else {
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fullTextQuery = fullTextSession.createFullTextQuery(query, clazz);
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}
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addOrder(fullTextQuery,orderHints);
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if(pageSize != null) {
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fullTextQuery.setMaxResults(pageSize);
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if(pageNumber != null) {
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fullTextQuery.setFirstResult(pageNumber * pageSize);
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} else {
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fullTextQuery.setFirstResult(0);
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}
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}
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List<DescriptionElementBase> results = fullTextQuery.list();
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defaultBeanInitializer.initializeAll(results, propertyPaths);
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return results;
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} catch (ParseException e) {
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throw new QueryParseException(e, queryString);
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}
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}
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public void purgeIndex() {
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FullTextSession fullTextSession = Search.getFullTextSession(getSession());
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for(Class clazz : indexedClasses) {
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fullTextSession.purgeAll(type); // remove all description element base from indexes
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}
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fullTextSession.flushToIndexes();
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}
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public void rebuildIndex() {
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FullTextSession fullTextSession = Search.getFullTextSession(getSession());
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for(DescriptionElementBase descriptionElementBase : list(null,null)) { // re-index all descriptionElements
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Hibernate.initialize(descriptionElementBase.getInDescription());
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Hibernate.initialize(descriptionElementBase.getFeature());
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fullTextSession.index(descriptionElementBase);
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}
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fullTextSession.flushToIndexes();
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}
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public void optimizeIndex() {
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FullTextSession fullTextSession = Search.getFullTextSession(getSession());
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SearchFactory searchFactory = fullTextSession.getSearchFactory();
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for(Class clazz : indexedClasses) {
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searchFactory.optimize(clazz); // optimize the indices ()
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}
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fullTextSession.flushToIndexes();
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}
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public int count(String queryString) {
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checkNotInPriorView("DescriptionElementDaoImpl.count(String queryString)");
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QueryParser queryParser = new QueryParser(defaultField, new SimpleAnalyzer());
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try {
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org.apache.lucene.search.Query query = queryParser.parse(queryString);
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FullTextSession fullTextSession = Search.getFullTextSession(this.getSession());
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org.hibernate.search.FullTextQuery fullTextQuery = fullTextSession.createFullTextQuery(query, type);
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return fullTextQuery.getResultSize();
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} catch (ParseException e) {
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throw new QueryParseException(e, queryString);
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}
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}
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public String suggestQuery(String string) {
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throw new UnsupportedOperationException("suggest query is not supported yet");
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}
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}
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