Java tutorial
/******************************************************************************* * HELIUM V, Open Source ERP software for sustained success * at small and medium-sized enterprises. * Copyright (C) 2004 - 2014 HELIUM V IT-Solutions GmbH * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, either version 3 of theLicense, or * (at your option) any later version. * * According to sec. 7 of the GNU Affero General Public License, version 3, * the terms of the AGPL are supplemented with the following terms: * * "HELIUM V" and "HELIUM 5" are registered trademarks of * HELIUM V IT-Solutions GmbH. The licensing of the program under the * AGPL does not imply a trademark license. Therefore any rights, title and * interest in our trademarks remain entirely with us. If you want to propagate * modified versions of the Program under the name "HELIUM V" or "HELIUM 5", * you may only do so if you have a written permission by HELIUM V IT-Solutions * GmbH (to acquire a permission please contact HELIUM V IT-Solutions * at trademark@heliumv.com). * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * Contact: developers@heliumv.com ******************************************************************************/ package com.lp.server.partner.fastlanereader; import java.math.BigDecimal; import java.rmi.RemoteException; import java.util.Iterator; import java.util.List; import org.hibernate.HibernateException; import org.hibernate.Query; import org.hibernate.ScrollableResults; import org.hibernate.Session; import org.hibernate.SessionFactory; import com.lp.server.artikel.service.VerkaufspreisDto; import com.lp.server.partner.fastlanereader.generated.FLRKundesokomengenstaffel; import com.lp.server.partner.service.KundesokoDto; import com.lp.server.partner.service.KundesokoFac; import com.lp.server.system.service.ParameterFac; import com.lp.server.system.service.ParametermandantDto; import com.lp.server.util.Facade; import com.lp.server.util.fastlanereader.FLRSessionFactory; import com.lp.server.util.fastlanereader.UseCaseHandler; import com.lp.server.util.fastlanereader.service.query.FilterBlock; import com.lp.server.util.fastlanereader.service.query.FilterKriterium; import com.lp.server.util.fastlanereader.service.query.QueryParameters; import com.lp.server.util.fastlanereader.service.query.QueryResult; import com.lp.server.util.fastlanereader.service.query.SortierKriterium; import com.lp.server.util.fastlanereader.service.query.TableInfo; import com.lp.util.EJBExceptionLP; /** * <p> * <I>FLR fuer PART_KUNDESOKOMENGENSTAFFEL.</I> * </p> * * <p> * Copyright Logistik Pur Software GmbH (c) 2004-2007 * </p> * * <p> * Erstellungsdatum <I>12.06.2006</I> * </p> * * <p> * </p> * * @author Uli Walch * @version 1.0 */ public class KundesokomengenstaffelHandler extends UseCaseHandler { /** * */ private static final long serialVersionUID = 1L; public static final String FLR_KUNDESOKOMENGENSTAFFEL = "flrkundesokomengenstaffel."; public static final String FLR_KUNDESOKOMENGENSTAFFEL_FROM_CLAUSE = " from FLRKundesokomengenstaffel flrkundesokomengenstaffel "; int iPreisbasis = 0; /** * gets the page of data for the specified row using the current * queryParameters. * * @param rowIndex * diese Zeile soll selektiert sein * @return QueryResult das Ergebnis der Abfrage * @throws EJBExceptionLP * Ausnahme * @see UseCaseHandler#getPageAt(java.lang.Integer) */ public QueryResult getPageAt(Integer rowIndex) throws EJBExceptionLP { QueryResult result = null; SessionFactory factory = FLRSessionFactory.getFactory(); Session session = null; try { int colCount = getTableInfo().getColumnClasses().length; int pageSize = KundesokomengenstaffelHandler.PAGE_SIZE; int startIndex = Math.max(rowIndex.intValue() - (pageSize / 2), 0); int endIndex = startIndex + pageSize - 1; session = factory.openSession(); String queryString = this.getFromClause() + this.buildWhereClause() + this.buildOrderByClause(); // myLogger.info("HQL: " + queryString); Query query = session.createQuery(queryString); query.setFirstResult(startIndex); query.setMaxResults(pageSize); List<?> resultList = query.list(); Iterator<?> resultListIterator = resultList.iterator(); Object[][] rows = new Object[resultList.size()][colCount]; int row = 0; int col = 0; while (resultListIterator.hasNext()) { FLRKundesokomengenstaffel mengenstaffel = (FLRKundesokomengenstaffel) resultListIterator.next(); rows[row][col++] = mengenstaffel.getI_id(); // Artikel oder Artikelgruppe rows[row][col++] = mengenstaffel.getFlrkundesoko().getArtgru_i_id() == null ? null : "G"; rows[row][col++] = mengenstaffel.getFlrkundesoko().getArtikel_i_id() == null ? mengenstaffel.getFlrkundesoko().getFlrartikelgruppe().getC_nr() : mengenstaffel.getFlrkundesoko().getFlrartikel().getC_nr(); rows[row][col++] = mengenstaffel.getN_menge(); rows[row][col++] = mengenstaffel.getN_fixpreis(); rows[row][col++] = mengenstaffel.getF_rabattsatz(); // zugehoerige Kundesoko KundesokoDto kundesokoDto = getKundesokoFac() .kundesokoFindByPrimaryKey(mengenstaffel.getKundesoko_i_id()); BigDecimal nBerechneterPreis = null; if (kundesokoDto.getArtikelIId() != null) { // der Preis muss an dieser Stelle berechnet werden nBerechneterPreis = new BigDecimal(0); if (mengenstaffel.getN_fixpreis() != null) { nBerechneterPreis = mengenstaffel.getN_fixpreis(); } else { // WH 21.06.06 Es gilt die VK-Basis, die zu Beginn der // Mengenstaffel gueltig ist BigDecimal nPreisbasis = null; if (iPreisbasis == 0 || iPreisbasis == 2) { nPreisbasis = getVkPreisfindungFac().ermittlePreisbasis(kundesokoDto.getArtikelIId(), new java.sql.Date(kundesokoDto.getTPreisgueltigab().getTime()), null, theClientDto.getSMandantenwaehrung(), theClientDto); } else { nPreisbasis = getVkPreisfindungFac().ermittlePreisbasis(kundesokoDto.getArtikelIId(), new java.sql.Date(kundesokoDto.getTPreisgueltigab().getTime()), mengenstaffel.getFlrkundesoko().getFlrkunde() .getVkpfartikelpreisliste_i_id_stdpreisliste(), theClientDto.getSMandantenwaehrung(), theClientDto); } VerkaufspreisDto vkpfDto = getVkPreisfindungFac().berechneVerkaufspreis(nPreisbasis, mengenstaffel.getF_rabattsatz()); if (vkpfDto != null) { nBerechneterPreis = vkpfDto.nettopreis; } } } rows[row][col++] = nBerechneterPreis; rows[row][col++] = kundesokoDto.getTPreisgueltigab(); rows[row++][col++] = kundesokoDto.getTPreisgueltigbis() == null ? null : kundesokoDto.getTPreisgueltigbis(); col = 0; } result = new QueryResult(rows, this.getRowCount(), startIndex, endIndex, 0); } catch (Exception e) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, e); } finally { try { session.close(); } catch (HibernateException he) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER, he); } } return result; } /** * gets the total number of rows represented by the current query. * * @return int die Anzehl der Zeilen im Ergebnis * @see UseCaseHandler#getRowCountFromDataBase() */ protected long getRowCountFromDataBase() { long rowCount = 0; SessionFactory factory = FLRSessionFactory.getFactory(); Session session = null; try { session = factory.openSession(); String queryString = "select count(*) " + this.getFromClause() + this.buildWhereClause(); Query query = session.createQuery(queryString); List<?> rowCountResult = query.list(); if (rowCountResult != null && rowCountResult.size() > 0) { rowCount = ((Long) rowCountResult.get(0)).longValue(); } } catch (Exception e) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, e); } finally { if (session != null) { try { session.close(); } catch (HibernateException he) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER_HIBERNATE, he); } } } return rowCount; } /** * builds the where clause of the HQL (Hibernate Query Language) statement * using the current query. * * @return the HQL where clause. */ private String buildWhereClause() { StringBuffer where = new StringBuffer(""); if (this.getQuery() != null && this.getQuery().getFilterBlock() != null && this.getQuery().getFilterBlock().filterKrit != null) { FilterBlock filterBlock = this.getQuery().getFilterBlock(); FilterKriterium[] filterKriterien = this.getQuery().getFilterBlock().filterKrit; String booleanOperator = filterBlock.boolOperator; boolean filterAdded = false; for (int i = 0; i < filterKriterien.length; i++) { if (filterKriterien[i].isKrit) { if (filterAdded) { where.append(" " + booleanOperator); } filterAdded = true; where.append(" " + FLR_KUNDESOKOMENGENSTAFFEL + filterKriterien[i].kritName); where.append(" " + filterKriterien[i].operator); where.append(" " + filterKriterien[i].value); } } if (filterAdded) { where.insert(0, " WHERE"); } } return where.toString(); } /** * builds the HQL (Hibernate Query Language) order by clause using the sort * criterias contained in the current query. * * @return the HQL order by clause. */ private String buildOrderByClause() { StringBuffer orderBy = new StringBuffer(""); if (this.getQuery() != null) { SortierKriterium[] kriterien = this.getQuery().getSortKrit(); boolean sortAdded = false; if (kriterien != null && kriterien.length > 0) { for (int i = 0; i < kriterien.length; i++) { if (!kriterien[i].kritName.endsWith(Facade.NICHT_SORTIERBAR)) { if (kriterien[i].isKrit) { if (sortAdded) { orderBy.append(", "); } sortAdded = true; orderBy.append(FLR_KUNDESOKOMENGENSTAFFEL + kriterien[i].kritName); orderBy.append(" "); orderBy.append(kriterien[i].value); } } } } else { // no sort criteria found, add default sort if (sortAdded) { orderBy.append(", "); } orderBy.append(FLR_KUNDESOKOMENGENSTAFFEL + KundesokoFac.FLR_KUNDESOKOMENGESTAFFEL_N_MENGE); sortAdded = true; } if (orderBy.indexOf(FLR_KUNDESOKOMENGENSTAFFEL + KundesokoFac.FLR_KUNDESOKOMENGESTAFFEL_N_MENGE) < 0) { // unique sort required because otherwise rowNumber of // selectedId // within sort() method may be different from the position of // selectedId // as returned in the page of getPageAt(). if (sortAdded) { orderBy.append(", "); } orderBy.append(FLR_KUNDESOKOMENGENSTAFFEL + KundesokoFac.FLR_KUNDESOKOMENGESTAFFEL_N_MENGE); sortAdded = true; } if (sortAdded) { orderBy.insert(0, " ORDER BY "); } } return orderBy.toString(); } /** * get the basic from clause for the HQL statement. * * @return the from clause. */ private String getFromClause() { return FLR_KUNDESOKOMENGENSTAFFEL_FROM_CLAUSE; } public TableInfo getTableInfo() { if (super.getTableInfo() == null) { try { ParametermandantDto param = getParameterFac().getMandantparameter(theClientDto.getMandant(), ParameterFac.KATEGORIE_KUNDEN, ParameterFac.PARAMETER_PREISBASIS_VERKAUF); iPreisbasis = (Integer) param.getCWertAsObject(); } catch (RemoteException e) { throwEJBExceptionLPRespectOld(e); } setTableInfo(new TableInfo( new Class[] { Integer.class, String.class, String.class, BigDecimal.class, BigDecimal.class, Double.class, BigDecimal.class, java.sql.Date.class, java.sql.Date.class }, new String[] { "i_id", "", getTextRespectUISpr("lp.artikel", theClientDto.getMandant(), theClientDto.getLocUi()), getTextRespectUISpr("lp.menge", theClientDto.getMandant(), theClientDto.getLocUi()), getTextRespectUISpr("lp.fixpreis", theClientDto.getMandant(), theClientDto.getLocUi()), getTextRespectUISpr("lp.rabatt", theClientDto.getMandant(), theClientDto.getLocUi()), getTextRespectUISpr("bes.nettogesamtpreisminusrabatte", theClientDto.getMandant(), theClientDto.getLocUi()), getTextRespectUISpr("lp.gueltig_ab", theClientDto.getMandant(), theClientDto.getLocUi()), getTextRespectUISpr("lp.gueltig_bis", theClientDto.getMandant(), theClientDto.getLocUi()) }, new int[] { QueryParameters.FLR_BREITE_SHARE_WITH_REST, // diese // Spalte // wird // ausgeblendet QueryParameters.FLR_BREITE_XXS, QueryParameters.FLR_BREITE_XM, QueryParameters.FLR_BREITE_M, // Format 1234.123 QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_SHARE_WITH_REST, // Breite // variabel QueryParameters.FLR_BREITE_SHARE_WITH_REST }, new String[] { "i_id", Facade.NICHT_SORTIERBAR, "flrartikel.c_nr", KundesokoFac.FLR_KUNDESOKOMENGESTAFFEL_N_MENGE, KundesokoFac.FLR_KUNDESOKOMENGESTAFFEL_N_FIXPREIS, KundesokoFac.FLR_KUNDESOKOMENGESTAFFEL_F_RABATTSATZ, Facade.NICHT_SORTIERBAR, Facade.NICHT_SORTIERBAR, Facade.NICHT_SORTIERBAR })); } return super.getTableInfo(); } public QueryResult sort(SortierKriterium[] sortierKriterien, Object selectedId) throws EJBExceptionLP { this.getQuery().setSortKrit(sortierKriterien); QueryResult result = null; int rowNumber = 0; if (selectedId != null && ((Integer) selectedId).intValue() >= 0) { SessionFactory factory = FLRSessionFactory.getFactory(); Session session = null; try { session = factory.openSession(); String queryString = "select " + FLR_KUNDESOKOMENGENSTAFFEL + "i_id" + FLR_KUNDESOKOMENGENSTAFFEL_FROM_CLAUSE + this.buildWhereClause() + this.buildOrderByClause(); Query query = session.createQuery(queryString); ScrollableResults scrollableResult = query.scroll(); boolean idFound = false; if (scrollableResult != null) { scrollableResult.beforeFirst(); while (scrollableResult.next()) { Integer id = (Integer) scrollableResult.getInteger(0); // TYPE // OF // KEY // ATTRIBUTE // ! // ! // ! if (selectedId.equals(id)) { rowNumber = scrollableResult.getRowNumber(); break; } } } } catch (Exception e) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, e); } finally { try { session.close(); } catch (HibernateException he) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, he); } } } if (rowNumber < 0 || rowNumber >= this.getRowCount()) { rowNumber = 0; } result = this.getPageAt(new Integer(rowNumber)); result.setIndexOfSelectedRow(rowNumber); return result; } }