219 lines
5.5 KiB
Java
219 lines
5.5 KiB
Java
package org.gcube.portlets.user.speciesdiscovery.server.persistence.dao;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import javax.persistence.EntityManager;
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import javax.persistence.EntityManagerFactory;
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import javax.persistence.Query;
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import javax.persistence.TypedQuery;
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import javax.persistence.criteria.CriteriaBuilder;
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import javax.persistence.criteria.CriteriaQuery;
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import javax.persistence.criteria.Root;
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import org.gcube.portlets.user.speciesdiscovery.shared.DatabaseServiceException;
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import org.gcube.portlets.user.speciesdiscovery.shared.Taxon;
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public class TaxonRowPersistence extends AbstractPersistence<Taxon>{
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public TaxonRowPersistence(EntityManagerFactory factory) {
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super(factory);
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}
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@Override
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public int removeAll() throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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int removed = 0;
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try {
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em.getTransaction().begin();
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removed = em.createQuery("DELETE FROM Taxon").executeUpdate();
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em.getTransaction().commit();
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logger.trace("DELETED FROM Taxon " + removed +" items");
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} catch (Exception e) {
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logger.error("Error in removeAll: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return removed;
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}
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@Override
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public List<Taxon> getList() throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<Taxon> listTaxon = new ArrayList<Taxon>();
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try {
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Query query = em.createQuery("select t from Taxon t");
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listTaxon = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in Taxon - removeAll: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listTaxon;
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}
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@Override
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public List<Taxon> getList(int startIndex, int offset) throws DatabaseServiceException {
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EntityManager em = super.createNewManager();
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List<Taxon> listTaxon = new ArrayList<Taxon>();
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try {
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Query query = em.createQuery("select t from Taxon t");
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query.setFirstResult(startIndex);
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query.setMaxResults(offset);
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listTaxon = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in Taxon - getList: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listTaxon;
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}
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@Override
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public int countItems() throws DatabaseServiceException{
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return getList().size();
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}
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@Override
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public Taxon getItemByKey(Integer id) throws DatabaseServiceException{
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logger.trace("getItemByKey id: "+id);
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EntityManager em = super.createNewManager();
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Taxon row = null;
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try {
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row = em.getReference(Taxon.class, id);
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} catch (Exception e) {
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logger.error("Error in Taxon - getItemByKey: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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if(row!=null)
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logger.trace("getItemByKey return row id: "+row.getId());
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else
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logger.trace("getItemByKey return null");
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//FOR DEBUG
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// System.out.println("getItemByKey return: "+row );
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return row;
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}
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@Override
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public List<Taxon> executeCriteriaQuery(CriteriaQuery<Object> criteriaQuery) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<Taxon> listTaxon = new ArrayList<Taxon>();
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try {
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Query query = em.createQuery(criteriaQuery);
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listTaxon = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in Taxon - executeCriteriaQuery: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listTaxon;
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}
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@Override
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public CriteriaBuilder getCriteriaBuilder() throws DatabaseServiceException{
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return createNewManager().getCriteriaBuilder();
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}
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@Override
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public Root<Taxon> rootFrom(CriteriaQuery<Object> cq) {
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return cq.from(Taxon.class);
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}
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@Override
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public List<Taxon> getList(Map<String, String> filterMap, int startIndex, int offset) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<Taxon> listTaxon = new ArrayList<Taxon>();
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try {
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String queryString = "select t from Taxon t";
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if(filterMap!=null && filterMap.size()>0){
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queryString+=" where ";
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for (String param : filterMap.keySet()) {
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String value = filterMap.get(param);
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queryString+=" t."+param+"="+value;
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queryString+=AND;
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}
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queryString = queryString.substring(0, queryString.lastIndexOf(AND));
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}
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Query query = em.createQuery(queryString);
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listTaxon = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in Taxon - getList: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listTaxon;
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}
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@Override
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public List<Taxon> executeTypedQuery(CriteriaQuery<Object> cq, int startIndex, int offset) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<Taxon> listTaxon = new ArrayList<Taxon>();
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try {
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TypedQuery typedQuery = em.createQuery(cq);
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if(startIndex>-1)
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typedQuery.setFirstResult(startIndex);
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if(offset>-1)
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typedQuery.setMaxResults(offset);
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listTaxon = typedQuery.getResultList();
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} catch (Exception e) {
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logger.error("Error in Taxon - executeTypedQuery: " + e.getMessage(), e);
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}finally {
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em.close();
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}
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return listTaxon;
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}
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@Override
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public int deleteItemByIdField(String idField) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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int removed = 0;
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try {
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em.getTransaction().begin();
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removed = em.createQuery("DELETE FROM Taxon t WHERE t."+Taxon.ID_FIELD+"='"+idField+"'").executeUpdate();
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em.getTransaction().commit();
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logger.trace("Item "+ idField + " was deleted from Taxon");
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} catch (Exception e) {
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logger.error("Error in Taxon deleteJobById: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return removed;
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}
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}
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