228 lines
6.3 KiB
Java
228 lines
6.3 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.apache.log4j.Logger;
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import org.gcube.portlets.user.speciesdiscovery.shared.DatabaseServiceException;
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import org.gcube.portlets.user.speciesdiscovery.shared.ResultRow;
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public class ResultRowPersistence extends AbstractPersistence<ResultRow>{
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// Query for a List of objects.
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protected CriteriaBuilder criteriaBuilder;
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protected CriteriaQuery<Object> criteriaQuery;
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protected Root<ResultRow> rootFrom;
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protected Logger logger = Logger.getLogger(ResultRowPersistence.class);
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public ResultRowPersistence(EntityManagerFactory factory) throws DatabaseServiceException{
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super(factory);
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criteriaBuilder = super.createNewManager().getCriteriaBuilder();
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// CriteriaQuery<Object> cq = criteriaBuilder.createQuery();
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// Root<ResultRow> rootFrom = cq.from(ResultRow.class);
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}
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@Override
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public Root<ResultRow> rootFrom(CriteriaQuery<Object> cq){
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return cq.from(ResultRow.class);
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}
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@SuppressWarnings("unchecked")
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@Override
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public List<ResultRow> getList() throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<ResultRow> listResultRow = new ArrayList<ResultRow>();
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try {
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Query query = em.createQuery("select t from ResultRow t");
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listResultRow = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in ResultRow - getList: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listResultRow;
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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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@SuppressWarnings({ "unchecked"})
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@Override
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public List<ResultRow> executeCriteriaQuery(CriteriaQuery<Object> criteriaQuery) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<ResultRow> listResultRow = new ArrayList<ResultRow>();
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try {
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Query query = em.createQuery(criteriaQuery);
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listResultRow = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in ResultRow - executeCriteriaQuery: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listResultRow;
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}
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@Override
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public ResultRow 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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ResultRow row = null;
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try {
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row = em.getReference(ResultRow.class, id);
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} catch (Exception e) {
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logger.error("Error in ResultRow - 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: "+row.getId() + ", service id: " + row.getServiceId());
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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 CriteriaBuilder getCriteriaBuilder() throws DatabaseServiceException{
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return createNewManager().getCriteriaBuilder();
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}
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/**
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*
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* @return
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*/
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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 ResultRow").executeUpdate();
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em.getTransaction().commit();
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logger.trace("DELETED FROM ResultRow " + removed +" items");
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} catch (Exception e) {
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logger.error("Error in ResultRow - 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<ResultRow> getList(int startIndex, int offset) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<ResultRow> listResultRow = new ArrayList<ResultRow>();
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try {
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Query query = em.createQuery("select t from ResultRow t");
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query.setFirstResult(startIndex);
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query.setMaxResults(offset);
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listResultRow = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in ResultRow - getList: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listResultRow;
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}
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@Override
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public List<ResultRow> getList(Map<String, String> filterMap, int startIndex, int offset) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<ResultRow> listResultRow = new ArrayList<ResultRow>();
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try {
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String queryString = "select t from ResultRow 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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listResultRow = query.getResultList();
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} catch (Exception e) {
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logger.error("Error in ResultRow - getList: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listResultRow;
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}
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@Override
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public List<ResultRow> executeTypedQuery(CriteriaQuery<Object> cq, int startIndex, int offset) throws DatabaseServiceException{
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EntityManager em = super.createNewManager();
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List<ResultRow> listOJ = new ArrayList<ResultRow>();
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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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listOJ = typedQuery.getResultList();
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} catch (Exception e) {
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logger.error("Error in ResultRow - executeTypedQuery: " + e.getMessage(), e);
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} finally {
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em.close();
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}
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return listOJ;
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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 ResultRow t WHERE t."+ResultRow.ID_FIELD+"='"+idField+"'").executeUpdate();
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em.getTransaction().commit();
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logger.trace("Item "+ idField + " was deleted from ResultRow");
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} catch (Exception e) {
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logger.error("Error in ResultRow - 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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} |