EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.persistence.dao.hibernate.reference;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

import java.util.UUID;

import org.apache.log4j.Logger;

import org.hibernate.Hibernate;

import org.hibernate.Query;

import org.hibernate.Session;

import org.hibernate.search.FullTextSession;

import org.hibernate.search.Search;

import org.springframework.beans.factory.annotation.Qualifier;

import org.springframework.stereotype.Repository;

import eu.etaxonomy.cdm.model.reference.IArticle;

import eu.etaxonomy.cdm.model.reference.IBookSection;

import eu.etaxonomy.cdm.model.reference.IInProceedings;

import eu.etaxonomy.cdm.model.reference.IPrintedUnitBase;

import eu.etaxonomy.cdm.model.reference.IReport;

import eu.etaxonomy.cdm.model.reference.IThesis;

import eu.etaxonomy.cdm.model.reference.Reference;

import eu.etaxonomy.cdm.model.reference.ReferenceType;

import eu.etaxonomy.cdm.model.taxon.TaxonBase;

import eu.etaxonomy.cdm.persistence.dao.hibernate.common.IdentifiableDaoBase;

import eu.etaxonomy.cdm.persistence.dao.reference.IReferenceDao;

import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;

import eu.etaxonomy.cdm.persistence.query.OrderHint;

import eu.etaxonomy.cdm.strategy.cache.reference.DefaultReferenceCacheStrategy;

/**

 * @author a.mueller

 *

 */

@Repository

@Qualifier("referenceDaoHibernateImpl")

public class ReferenceDaoHibernateImpl extends IdentifiableDaoBase<Reference> implements IReferenceDao {

	private static final Logger logger = Logger.getLogger(ReferenceDaoHibernateImpl.class);

	public ReferenceDaoHibernateImpl() {

		super(Reference.class);

	}

	@Override

	public void rebuildIndex() {

		FullTextSession fullTextSession = Search.getFullTextSession(getSession());

		for(Reference reference : list(null,null)) { // re-index all agents

			Hibernate.initialize(reference.getAuthorship());

			if(reference.getType().equals(ReferenceType.Article)) {

				Hibernate.initialize(((IArticle)reference).getInJournal());

			} else if(reference.getType().equals(ReferenceType.BookSection)) {

				   Hibernate.initialize(((IBookSection)reference).getInBook());

			} else if(reference.getType().equals(ReferenceType.InProceedings)) {

					Hibernate.initialize(((IInProceedings)reference).getInProceedings());

			}else if(reference.getType().equals(ReferenceType.Thesis)) {

				Hibernate.initialize(((IThesis)reference).getSchool());

			} else if(reference.getType().equals(ReferenceType.Report)) {

				Hibernate.initialize(((IReport)reference).getInstitution());

			} else if(reference.getType().isPrintedUnit()) {

				Hibernate.initialize(((IPrintedUnitBase)reference).getInSeries());

			}

			fullTextSession.index(reference);

		}

		fullTextSession.flushToIndexes();

	}

	@Override

    public List<UuidAndTitleCache<Reference>> getUuidAndTitle(){

		List<UuidAndTitleCache<Reference>> list = new ArrayList<UuidAndTitleCache<Reference>>();

		Session session = getSession();

		Query query = session.createQuery("select uuid, id, titleCache from " + type.getSimpleName());

		@SuppressWarnings("unchecked")

        List<Object[]> result = query.list();

		for(Object[] object : result){

			list.add(new UuidAndTitleCache<Reference>(type, (UUID) object[0], (Integer)object[1], (String) object[2]));

		}

		return list;

	}

	@Override

	public List<UuidAndTitleCache<Reference>> getUuidAndTitleCache(Integer limit, String pattern) {

		List<UuidAndTitleCache<Reference>> list = new ArrayList<UuidAndTitleCache<Reference>>();

		Session session = getSession();

		 Query query;

		if (pattern != null){

		    query = session.createQuery("SELECT " +"r.uuid, r.id, r.titleCache, ab.titleCache FROM " + type.getSimpleName() + " AS r LEFT OUTER JOIN r.authorship AS ab where r.titleCache like :pattern");

		}else{

		    query = session.createQuery("SELECT " +"r.uuid, r.id, r.titleCache, ab.titleCache FROM " + type.getSimpleName() + " AS r LEFT OUTER JOIN r.authorship AS ab ");//"select uuid, titleCache from " + type.getSimpleName());

		}

		if (limit != null){

		    query.setMaxResults(limit);

		}

		if (pattern != null){

		      pattern.replace("*", "%");

	          pattern = pattern + "%";

	          query.setParameter("pattern", pattern);

	    }

		@SuppressWarnings("unchecked")

        List<Object[]> result = query.list();

		for(Object[] object : result){

			String referenceTitle = (String) object[2];

			if(referenceTitle != null){

				String teamTitle = (String) object[3];

				referenceTitle = DefaultReferenceCacheStrategy.putAuthorToEndOfString(referenceTitle, teamTitle);

				list.add(new UuidAndTitleCache<Reference>(Reference.class, (UUID) object[0],(Integer)object[1], referenceTitle));

			}else{

				logger.error("title cache of reference is null. UUID: " + object[0]);

			}

		}

		return list;

	}

	@Override

    public List<Reference> getAllReferencesForPublishing(){

		@SuppressWarnings("unchecked")

        List<Reference> references = getSession().createQuery("SELECT r FROM Reference r "+

				"WHERE r.id IN "+

					"(SELECT m.markedObj.id FROM Marker m WHERE "+

						"m.markerType.id = "+

							"(SELECT dtb.id FROM DefinedTermBase dtb, Representation r WHERE r MEMBER OF dtb.representations AND r.text='publish'))").list();

		return references;

	}

	@Override

    public List<Reference> getAllNotNomenclaturalReferencesForPublishing(){

		@SuppressWarnings("unchecked")

        List<Reference> references = getSession().createQuery("select t.nomenclaturalReference from TaxonNameBase t").list();

		String queryString = "from Reference b where b not in (:referenceList) and b in (:publish)" ;

		Query referenceQuery = getSession().createQuery(queryString).setParameterList("referenceList", references);

		referenceQuery.setParameterList("publish", getAllReferencesForPublishing());

		@SuppressWarnings("unchecked")

        List<Reference> resultRefernces =referenceQuery.list();

		return resultRefernces;

	}

	// the result list held doubles therefore I put a "distinct" in the query string

	@Override

    public List<Reference> getAllNomenclaturalReferences() {

		@SuppressWarnings("unchecked")

        List<Reference> references = getSession().createQuery(

				"SELECT DISTINCT t.nomenclaturalReference FROM TaxonNameBase t").list();

		return references;

	}

    @Override

	public List<Reference> getSubordinateReferences(Reference reference) {

		List<Reference> references = new ArrayList();

		List<Reference> subordinateReferences = new ArrayList<Reference>();

		Query query = getSession().createQuery("select r from Reference r where r.inReference = (:reference)");

		query.setParameter("reference", reference);

		@SuppressWarnings("unchecked")

	    List<Reference> list = query.list();

	    references.addAll(list);

		for(Reference ref : references){

			subordinateReferences.addAll(getSubordinateReferences(ref));

		}

		references.addAll(subordinateReferences);

		return references;

	}

    @Override

	public List<TaxonBase> listCoveredTaxa(Reference reference, boolean includeSubordinateReferences, List<OrderHint> orderHints, List<String> propertyPaths) {

		/*

		 * <li>taxon.name.nomenclaturalreference</li>

		 * <li>taxon.descriptions.descriptionElement.sources.citation</li>

		 * <li>taxon.descriptions.descriptionSources</li>

		 * <li>taxon.name.descriptions.descriptionElement.sources</li>

		 * <li>taxon.name.descriptions.descriptionSources</li>

		 */

		//TODO implement search in nameDescriptions

		Set<Reference> referenceSet = new HashSet<Reference>();

		referenceSet.add(reference);

		if(includeSubordinateReferences){

			referenceSet.addAll(getSubordinateReferences(reference));

		}

		StringBuilder taxonDescriptionSql = new StringBuilder();

		taxonDescriptionSql.append(

			"select distinct t from Taxon t " +

			// TaxonDescription

			"left join t.descriptions td " +

			"left join td.descriptionSources td_s " +

			"left join td.descriptionElements td_e " +

			"left join td_e.sources td_e_s " +

			// TaxonNameDescription

			"left join t.name n " +

			"left join n.descriptions nd " +

			"left join nd.descriptionSources nd_s " +

			"left join nd.descriptionElements nd_e " +

			"left join nd_e.sources nd_e_s " +

			"where td_e_s.citation in (:referenceBase_1) " +

			"or td_s in (:referenceBase_2) " +

			"or nd_e_s.citation in (:referenceBase_3) " +

			"or nd_s in (:referenceBase_4) or " +

			"n.nomenclaturalReference in (:referenceBase_5) or " +

			"t.sec in (:referenceBase_6)"

			);

		if (orderHints != null && orderHints.size() > 0){

		    taxonDescriptionSql.append(" order by ");

		    int i = 0;

		    for (OrderHint hint : orderHints) {

		        if(i > 0) {

		            taxonDescriptionSql.append(", ");

		        }

		        taxonDescriptionSql.append("t.").append(hint.toHql());

            }

		}

		// TODO include:

		// name relations

		// taxon relations

		Query query = getSession().createQuery(taxonDescriptionSql.toString());

		query.setParameterList("referenceBase_1", referenceSet);

		query.setParameterList("referenceBase_2", referenceSet);

		query.setParameterList("referenceBase_3", referenceSet);

		query.setParameterList("referenceBase_4", referenceSet);

		query.setParameterList("referenceBase_5", referenceSet);

		query.setParameterList("referenceBase_6", referenceSet);

		@SuppressWarnings("unchecked")

        List<TaxonBase> taxonBaseList = query.list();

		defaultBeanInitializer.initializeAll(taxonBaseList, propertyPaths);

		return taxonBaseList;

	}

}