com.lp.server.bestellung.fastlanereader.OffeneWEPosHandler.java Source code

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/*******************************************************************************
 * 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.bestellung.fastlanereader;

import java.awt.Color;
import java.rmi.RemoteException;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;

import org.hibernate.Query;
import org.hibernate.ScrollableResults;
import org.hibernate.Session;
import org.hibernate.SessionFactory;

import com.lp.server.artikel.fastlanereader.generated.FLRArtikellistespr;
import com.lp.server.artikel.service.ArtikelFac;
import com.lp.server.benutzer.service.RechteFac;
import com.lp.server.bestellung.fastlanereader.generated.FLRBestellposition;
import com.lp.server.bestellung.fastlanereader.generated.FLRBestellpositionMitArtikelliste;
import com.lp.server.bestellung.service.BestellpositionDto;
import com.lp.server.bestellung.service.BestellpositionFac;
import com.lp.server.bestellung.service.BestellungDto;
import com.lp.server.partner.service.LieferantDto;
import com.lp.server.partner.service.PartnerDto;
import com.lp.server.system.jcr.service.JCRDocFac;
import com.lp.server.system.service.LocaleFac;
import com.lp.server.system.service.MandantFac;
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;
import com.lp.util.Helper;

/**
 * <p>
 * <I>FLR-Handler fuer Bestellpositionen</I>
 * </p>
 * 
 * <p>
 * Copyright Logistik Pur Software GmbH (c) 2004-2007
 * </p>
 * 
 * <p>
 * Erstellungsdatum <I>10.02.05</I>
 * </p>
 * 
 * <p>
 * </p>
 * 
 * @author GH
 * @version 1.0
 */
public class OffeneWEPosHandler extends UseCaseHandler {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    /**
     * gets the page of data for the specified row using the current
     * queryParameters.
     * 
     * @param rowIndex
     *            the index of the row that should be contained in the page.
     * @return the data page for the specified row.
     * @throws EJBExceptionLP
     */
    public QueryResult getPageAt(Integer rowIndex) throws EJBExceptionLP {
        QueryResult result = null;
        SessionFactory factory = FLRSessionFactory.getFactory();
        Session session = null;
        String mandantCNr = theClientDto.getMandant();
        Locale locUI = theClientDto.getLocUi();

        try {
            int colCount = getTableInfo().getColumnClasses().length;
            int pageSize = BestellungHandler.PAGE_SIZE;
            int startIndex = Math.max(rowIndex.intValue() - (pageSize / 2), 0);
            int endIndex = startIndex + pageSize - 1;

            session = factory.openSession();
            session = setFilter(session);
            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];
            String[] tooltipData = new String[resultList.size()];
            int row = 0;
            int col = 0;

            // darf Preise sehen.
            final boolean bDarfPreiseSehen = getTheJudgeFac().hatRecht(RechteFac.RECHT_LP_DARF_PREISE_SEHEN_EINKAUF,
                    theClientDto);

            int iNachkommastellenMenge = getMandantFac().getNachkommastellenMenge(mandantCNr);

            while (resultListIterator.hasNext()) {
                Object[] o = (Object[]) resultListIterator.next();

                FLRBestellpositionMitArtikelliste position = (FLRBestellpositionMitArtikelliste) o[0];
                rows[row][col++] = position.getI_id();
                rows[row][col++] = position.getT_uebersteuerterliefertermin();
                rows[row][col++] = position.getT_auftragsbestaetigungstermin();

                if (position.getFlrartikel() != null) {
                    if (position.getFlrartikel().getArtikelart_c_nr().equals(ArtikelFac.ARTIKELART_HANDARTIKEL)) {
                        rows[row][col++] = null;
                    } else {
                        rows[row][col++] = position.getFlrartikel().getC_nr();
                    }
                } else {
                    rows[row][col++] = null;
                }
                if (o[1] != null) {
                    FLRArtikellistespr spr = (FLRArtikellistespr) o[1];
                    rows[row][col++] = spr.getC_bez();
                } else {
                    rows[row][col++] = position.getC_bezeichnung();
                }

                if (position.getN_offenemenge() != null) {
                    rows[row][col++] = getUIObjectBigDecimalNachkommastellen(position.getN_offenemenge(),
                            iNachkommastellenMenge);
                } else {
                    rows[row][col++] = getUIObjectBigDecimalNachkommastellen(position.getN_menge(),
                            iNachkommastellenMenge);
                }
                rows[row][col++] = position.getFlrbestellung().getC_nr();
                rows[row][col++] = position.getFlrbestellung().getFlrlieferant().getFlrpartner()
                        .getC_name1nachnamefirmazeile1();

                if (position.getFlrartikel() != null
                        && Helper.short2boolean(position.getFlrartikel().getB_seriennrtragend())) {
                    rows[row][col++] = Color.GRAY;
                } else {
                    rows[row][col++] = null;
                }

                row++;
                col = 0;
            }
            result = new QueryResult(rows, this.getRowCount(), startIndex, endIndex, 0, tooltipData);
        } catch (Exception e) {
            throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, e);
        } finally {
            closeSession(session);
        }
        return result;
    }

    public Session setFilter(Session session) {
        session = super.setFilter(session);
        String sMandant = theClientDto.getMandant();
        if (getMandantFac().darfAnwenderAufZusatzfunktionZugreifen(MandantFac.ZUSATZFUNKTION_ZENTRALER_ARTIKELSTAMM,
                theClientDto)) {
            session.enableFilter("filterMandant").setParameter("paramMandant", getSystemFac().getHauptmandant());
        } else {
            session.enableFilter("filterMandant").setParameter("paramMandant", sMandant);
        }
        return session;
    }

    /**
     * gets the total number of rows available using the current query.
     * 
     * @return the number of rows in the query.
     */
    protected long getRowCountFromDataBase() {
        long rowCount = 0;
        SessionFactory factory = FLRSessionFactory.getFactory();
        Session session = null;
        try {
            session = factory.openSession();
            session = setFilter(session);
            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, e);
        } finally {
            closeSession(session);
        }
        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].isBIgnoreCase()) {
                        where.append(" lower(" + filterKriterien[i].kritName + ")");
                        where.append(" " + filterKriterien[i].operator);
                        where.append(" " + filterKriterien[i].value.toLowerCase());
                    } else {
                        where.append(" " + 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].isKrit) {
                        if (sortAdded) {
                            orderBy.append(", ");
                        }
                        sortAdded = true;
                        orderBy.append("position." + kriterien[i].kritName);
                        orderBy.append(" ");
                        orderBy.append(kriterien[i].value);
                    }
                }
            } else {
                // no sort criteria found, add default sort
                if (sortAdded) {
                    orderBy.append(", ");
                }
                orderBy.append("position.")
                        .append(BestellpositionFac.FLR_BESTELLPOSITION_T_UEBERSTEUERTERLIEFERTERMIN)
                        .append(" ASC ");
                sortAdded = true;
            }
            if (orderBy.indexOf(
                    "position." + BestellpositionFac.FLR_BESTELLPOSITION_T_UEBERSTEUERTERLIEFERTERMIN) < 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(" position.")
                        .append(BestellpositionFac.FLR_BESTELLPOSITION_T_UEBERSTEUERTERLIEFERTERMIN).append(" ");
                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 FLRBestellpositionMitArtikelliste position LEFT OUTER JOIN position.flrartikel.artikelsprset AS aspr ";
    }

    /**
     * gets information such as column names an column types used for the table
     * on the client side.
     * 
     * @return the information needed to create the client side table.
     */
    public TableInfo getTableInfo() {
        try {
            if (super.getTableInfo() == null) {
                String mandantCNr = theClientDto.getMandant();

                int iNachkommastellenMenge = getMandantFac().getNachkommastellenMenge(mandantCNr);
                int iNachkommastellenPreis = getMandantFac().getNachkommastellenPreisEK(mandantCNr);

                setTableInfo(new TableInfo(
                        new Class[] { Integer.class, Date.class, Date.class, String.class, String.class,
                                super.getUIClassBigDecimalNachkommastellen(iNachkommastellenMenge), String.class,
                                String.class, Color.class },
                        new String[] { "i_id",
                                getTextRespectUISpr("bes.bestelltermin", theClientDto.getMandant(),
                                        theClientDto.getLocUi()),
                                getTextRespectUISpr("bes.termin", theClientDto.getMandant(),
                                        theClientDto.getLocUi()),
                                getTextRespectUISpr("artikel.artikelnummerlang", theClientDto.getMandant(),
                                        theClientDto.getLocUi()),
                                getTextRespectUISpr("bes.bezeichnung", theClientDto.getMandant(),
                                        theClientDto.getLocUi()),
                                getTextRespectUISpr("bes.offenemenge", theClientDto.getMandant(),
                                        theClientDto.getLocUi()),
                                getTextRespectUISpr("bes.bestellung", theClientDto.getMandant(),
                                        theClientDto.getLocUi()),
                                getTextRespectUISpr("bes.lieferant", theClientDto.getMandant(),
                                        theClientDto.getLocUi()),
                                " " },
                        new int[] { QueryParameters.FLR_BREITE_SHARE_WITH_REST, QueryParameters.FLR_BREITE_M,
                                QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_XM,
                                QueryParameters.FLR_BREITE_SHARE_WITH_REST,
                                getUIBreiteAbhaengigvonNachkommastellen(QueryParameters.PREIS,
                                        iNachkommastellenPreis),
                                QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_XM, 1 },

                        new String[] { "i_id", BestellpositionFac.FLR_BESTELLPOSITION_T_UEBERSTEUERTERLIEFERTERMIN,
                                BestellpositionFac.FLR_BESTELLPOSITION_T_AUFTRAGSBESTAETIGUNGSTERMIN,
                                BestellpositionFac.FLR_BESTELLPOSITION_FLRARTIKEL + ".c_nr",
                                BestellpositionFac.FLR_BESTELLPOSITION_C_BEZEICHNUNG,
                                BestellpositionFac.FLR_BESTELLPOSITION_N_OFFENEMENGE,
                                BestellpositionFac.FLR_BESTELLPOSITION_FLRBESTELLUNG + ".c_nr",
                                BestellpositionFac.FLR_BESTELLPOSITION_FLRBESTELLUNG
                                        + ".flrlieferant.flrpartner.c_name1nachnamefirmazeile1",
                                Facade.NICHT_SORTIERBAR }));

            }
            return super.getTableInfo();
        } catch (RemoteException ex) {
            throwEJBExceptionLPRespectOld(ex);
            return null;
        }
    }

    /**
     * sorts the data of the current query using the specified criterias and
     * returns the page of data where the row of selectedId is contained.
     * 
     * @param sortierKriterien
     *            the new sort criterias.
     * @param selectedId
     *            the id of the entity that should be included in the result
     *            page.
     * @return the sorted data containing the page where the entity with the
     *         specified id is located.
     * @throws EJBExceptionLP
     */
    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();
                session = setFilter(session);
                String queryString = "select position." + "i_id"
                        + " from FLRBestellpositionMitArtikelliste position LEFT OUTER JOIN position.flrartikel.artikelsprset AS aspr "
                        + 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);
                        if (selectedId.equals(id)) {
                            rowNumber = scrollableResult.getRowNumber();
                            break;
                        }
                    }
                }
            } catch (Exception e) {
                throw new EJBExceptionLP(EJBExceptionLP.FEHLER_FLR, e);
            } finally {
                closeSession(session);
            }
        }

        if (rowNumber < 0 || rowNumber >= this.getRowCount()) {
            rowNumber = 0;
        }

        result = this.getPageAt(new Integer(rowNumber));
        result.setIndexOfSelectedRow(rowNumber);

        return result;
    }

    public String getSTable() {
        return "BESTELLPOSITION";
    }
}