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.finanz.fastlanereader; import java.rmi.RemoteException; import java.util.Iterator; import java.util.List; import java.util.Locale; import javax.swing.Icon; import org.hibernate.HibernateException; import org.hibernate.Query; import org.hibernate.ScrollableResults; import org.hibernate.Session; import org.hibernate.SessionFactory; import com.lp.server.finanz.fastlanereader.generated.FLRFinanzBuchung; import com.lp.server.finanz.service.FinanzFac; import com.lp.server.system.service.LocaleFac; import com.lp.server.system.service.ParameterFac; 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; import com.lp.util.Helper; /** * <p> * Hier wird die FLR Funktionalitaet fuer die Buchungen implementiert. Pro * UseCase gibt es einen Handler. * </p> * <p> * Copright Logistik Pur Software GmbH (c) 2004-2007 * </p> * <p> * Erstellungsdatum 28.09.2004 * </p> * <p> * </p> * * @author MB * @version 1.0 */ public class BuchungHandler extends UseCaseHandler { /** * */ private static final long serialVersionUID = 1L; String trennzeichen = ""; Integer stellenBelegnummer = 7; 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 = 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(); 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()) { FLRFinanzBuchung buchung = (FLRFinanzBuchung) resultListIterator.next(); rows[row][col++] = buchung.getI_id(); rows[row][col++] = Helper.extractDate(buchung.getT_anlegen()); rows[row][col++] = buchung.getD_buchungsdatum(); rows[row][col++] = Helper.short2boolean(buchung.getB_autombuchungeb()) ? "E" : ""; rows[row][col++] = buchung.getBuchungsart_c_nr(); rows[row][col++] = buchung.getC_belegnummer(); rows[row][col++] = buchung.getC_text(); if (buchung.getT_storniert() != null) { rows[row][col++] = LocaleFac.STATUS_GESPERRT; } else { rows[row][col++] = null; } row++; 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_FLR, he); } } return result; } /** * gets the total number of rows represented by the current query. * * @see UseCaseHandler#getRowCountFromDataBase() * @return int */ 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 { try { session.close(); } catch (HibernateException he) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, 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; if (filterKriterien[i].kritName.equals("c_belegnummer")) { // MANDANTENKENNUNG WIRD DERZEIT NICHT UNTERSTUETZT try { String sValue = filterKriterien[i].value; sValue = sValue.replaceAll("%", ""); sValue = Helper.fitString2LengthAlignRight(sValue, stellenBelegnummer, '0'); sValue = "'%" + trennzeichen + sValue + "'"; where.append(" buchung.c_belegnummer"); where.append(" " + filterKriterien[i].operator); where.append(" " + sValue); } catch (Exception ex) { throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, ex); } } else { if (filterKriterien[i].isBIgnoreCase()) { where.append(" LOWER(" + filterKriterien[i].kritName + ")"); } else { where.append(" buchung." + filterKriterien[i].kritName); } where.append(" " + filterKriterien[i].operator); if (filterKriterien[i].isBIgnoreCase()) { where.append(" " + filterKriterien[i].value.toLowerCase()); } else { 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].isKrit) { if (sortAdded) { orderBy.append(", "); } sortAdded = true; orderBy.append("buchung." + kriterien[i].kritName); orderBy.append(" "); orderBy.append(kriterien[i].value); } } } else { // no sort criteria found, add default sort if (sortAdded) { orderBy.append(", "); } orderBy.append("buchung.id ASC "); sortAdded = true; } if (orderBy.indexOf("buchung.id") < 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(" buchung.id "); 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 "from FLRFinanzBuchung buchung "; } /** * sorts the data described by the current query using the specified sort * criterias. The current query is also updated with the new sort criterias. * * @see UseCaseHandler#sort(SortierKriterium[], Object) * @throws EJBExceptionLP * @param sortierKriterien * SortierKriterium[] * @param selectedId * Object * @return QueryResult */ 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 buchung.id from FLRFinanzBuchung buchung " + this.buildWhereClause() + this.buildOrderByClause(); Query query = session.createQuery(queryString); ScrollableResults scrollableResult = query.scroll(); if (scrollableResult != null) { scrollableResult.beforeFirst(); while (scrollableResult.next()) { Integer id = (Integer) scrollableResult.getInteger(0); 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; } /** * gets information about the Kontentable. * * @return TableInfo */ public TableInfo getTableInfo() { if (super.getTableInfo() == null) { try { trennzeichen = getParameterFac().getMandantparameter(theClientDto.getMandant(), ParameterFac.KATEGORIE_ALLGEMEIN, ParameterFac.PARAMETER_BELEGNUMMERNFORMAT_TRENNZEICHEN) .getCWert(); stellenBelegnummer = new Integer(getParameterFac() .getMandantparameter(theClientDto.getMandant(), ParameterFac.KATEGORIE_ALLGEMEIN, ParameterFac.PARAMETER_BELEGNUMMERNFORMAT_STELLEN_BELEGNUMMER) .getCWert()); } catch (RemoteException e) { throwEJBExceptionLPRespectOld(e); } String mandantCNr = theClientDto.getMandant(); Locale locUI = theClientDto.getLocUi(); setTableInfo(new TableInfo( new Class[] { Integer.class, java.util.Date.class, java.util.Date.class, String.class, String.class, String.class, String.class, Icon.class }, new String[] { "Id", getTextRespectUISpr("lp.gebucht", mandantCNr, locUI), getTextRespectUISpr("lp.buchungsdatum", mandantCNr, locUI), getTextRespectUISpr("lp.buchungtypeb", mandantCNr, locUI), getTextRespectUISpr("lp.buchungsart", mandantCNr, locUI), getTextRespectUISpr("bes.belegnummer", mandantCNr, locUI), getTextRespectUISpr("lp.text", mandantCNr, locUI), getTextRespectUISpr("fb.storno", mandantCNr, locUI) }, new int[] { -1, // diese Spalte wird ausgeblendet QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_S, QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_SHARE_WITH_REST, QueryParameters.FLR_BREITE_S }, new String[] { FinanzFac.FLR_BUCHUNG_I_ID, FinanzFac.FLR_BUCHUNG_T_ANLEGEN, FinanzFac.FLR_BUCHUNG_D_BUCHUNGSDATUM, FinanzFac.FLR_BUCHUNG_AUTOMBUCHUNG_EB, FinanzFac.FLR_BUCHUNG_BUCHUNGSART_C_NR, FinanzFac.FLR_BUCHUNG_C_BELEGNUMMER, FinanzFac.FLR_BUCHUNG_C_TEXT, FinanzFac.FLR_BUCHUNG_T_STORNIERT })); } return super.getTableInfo(); } }