com.lp.server.anfrage.fastlanereader.AnfragepositionlieferdatenHandler.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.anfrage.fastlanereader;

import java.math.BigDecimal;
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.anfrage.fastlanereader.generated.FLRAnfragepositionlieferdaten;
import com.lp.server.anfrage.service.AnfrageServiceFac;
import com.lp.server.anfrage.service.AnfragepositionFac;
import com.lp.server.artikel.service.ArtikellieferantDto;
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>
 * FLR fuer ANF_ANFRAGEPOSITIONLIEFERDATEN
 * </p>
 * <p>
 * Copright Logistik Pur Software GmbH (c) 2004-2007
 * </p>
 * <p>
 * Erstellungsdatum 17.06.05
 * </p>
 * <p>
 * </p>
 * 
 * @author Uli Walch
 * @version 1.0
 */

public class AnfragepositionlieferdatenHandler extends UseCaseHandler {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    public static final String FLR_ANFRAGEPOSITIONLIEFERDATEN = "flranfragepositionlieferdaten.";
    public static final String FLR_ANFRAGEPOSITIONLIEFERDATEN_FROM_CLAUSE = " from FLRAnfragepositionlieferdaten flranfragepositionlieferdaten ";

    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 = AnfrageHandler.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()) {
                FLRAnfragepositionlieferdaten position = (FLRAnfragepositionlieferdaten) resultListIterator.next();
                rows[row][col++] = position.getI_id();
                rows[row][col++] = position.getN_anliefermenge();
                rows[row][col++] = position.getFlranfrageposition().getFlrartikel().getEinheit_c_nr() == null ? ""
                        : position.getFlranfrageposition().getFlrartikel().getEinheit_c_nr().trim();
                String sIdentnummer = "";
                if (position.getFlranfrageposition().getFlrartikel() != null) {
                    sIdentnummer = position.getFlranfrageposition().getFlrartikel().getC_nr();
                }
                rows[row][col++] = sIdentnummer;
                String cArtikelbezeichnung = null;

                Boolean bArtikellieferantVorhanden = false;

                if (position.getFlranfrageposition().getAnfragepositionart_c_nr()
                        .equals(AnfrageServiceFac.ANFRAGEPOSITIONART_IDENT)) {
                    // die sprachabhaengig Artikelbezeichnung anzeigen
                    cArtikelbezeichnung = getArtikelFac().formatArtikelbezeichnungEinzeiligOhneExc(
                            position.getFlranfrageposition().getFlrartikel().getI_id(), theClientDto.getLocUi());

                    ArtikellieferantDto alDto = getArtikelFac()
                            .artikellieferantFindByArtikellIIdLieferantIIdOhneExc(
                                    position.getFlranfrageposition().getFlrartikel().getI_id(),
                                    position.getFlranfrageposition().getFlranfrage().getFlrlieferant().getI_id(),
                                    theClientDto);
                    if (alDto != null) {
                        bArtikellieferantVorhanden = true;
                    }

                } else {
                    if (position.getFlranfrageposition().getC_bez() != null) {
                        cArtikelbezeichnung = position.getFlranfrageposition().getC_bez();
                    }
                }

                rows[row][col++] = cArtikelbezeichnung;
                rows[row][col++] = position.getN_nettogesamtpreis();

                rows[row++][col++] = bArtikellieferantVorhanden;

                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;
    }

    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_ANFRAGEPOSITIONLIEFERDATEN + 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_ANFRAGEPOSITIONLIEFERDATEN + 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_ANFRAGEPOSITIONLIEFERDATEN)
                        // default Sortierung nach iSort
                        .append(AnfragepositionFac.FLR_ANFRAGEPOSITIONLIEFERDATEN_FLRANFRAGEPOSITION).append(".")
                        .append(AnfragepositionFac.FLR_ANFRAGEPOSITION_I_SORT).append(" ASC ");
                sortAdded = true;
            }
            if (orderBy.indexOf(FLR_ANFRAGEPOSITIONLIEFERDATEN + "i_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(" ").append(FLR_ANFRAGEPOSITIONLIEFERDATEN).append("i_id").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 FLR_ANFRAGEPOSITIONLIEFERDATEN_FROM_CLAUSE;
    }

    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_ANFRAGEPOSITIONLIEFERDATEN + "i_id"
                        + FLR_ANFRAGEPOSITIONLIEFERDATEN_FROM_CLAUSE + 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, he);
                }
            }
        }

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

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

        return result;
    }

    public TableInfo getTableInfo() {
        if (super.getTableInfo() == null) {
            setTableInfo(new TableInfo(
                    new Class[] { Integer.class, BigDecimal.class, String.class, String.class, String.class,
                            BigDecimal.class, Boolean.class },
                    new String[] { "i_id", // hier steht immer i_id oder c_nr
                            getTextRespectUISpr("anf.anliefermenge", theClientDto.getMandant(),
                                    theClientDto.getLocUi()),
                            getTextRespectUISpr("lp.einheit", theClientDto.getMandant(), theClientDto.getLocUi()),
                            getTextRespectUISpr("lp.bezeichnung", theClientDto.getMandant(),
                                    theClientDto.getLocUi()),
                            getTextRespectUISpr("lp.ident", theClientDto.getMandant(), theClientDto.getLocUi()),
                            getTextRespectUISpr("anf.anlieferpreis", theClientDto.getMandant(),
                                    theClientDto.getLocUi()),
                            getTextRespectUISpr("anfr.artiellieferant.bereitsvorhanden", theClientDto.getMandant(),
                                    theClientDto.getLocUi()) },
                    new int[] { QueryParameters.FLR_BREITE_SHARE_WITH_REST, // hidden
                            QueryParameters.FLR_BREITE_M, QueryParameters.FLR_BREITE_XS, getUIBreiteIdent(), //ident
                            QueryParameters.FLR_BREITE_SHARE_WITH_REST, QueryParameters.FLR_BREITE_M,
                            QueryParameters.FLR_BREITE_S, },
                    new String[] { "i_id", AnfragepositionFac.FLR_ANFRAGEPOSITIONLIEFERDATEN_N_ANLIEFERMENGE,
                            AnfragepositionFac.FLR_ANFRAGEPOSITIONLIEFERDATEN_FLRANFRAGEPOSITION + "."
                                    + AnfragepositionFac.FLR_ANFRAGEPOSITION_FLRARTIKEL + "."
                                    + AnfragepositionFac.FLR_ANFRAGEPOSITION_EINHEIT_C_NR,
                            Facade.NICHT_SORTIERBAR,
                            AnfragepositionFac.FLR_ANFRAGEPOSITIONLIEFERDATEN_FLRANFRAGEPOSITION + ".c_bez", // dummy
                            AnfragepositionFac.FLR_ANFRAGEPOSITIONLIEFERDATEN_FLRANFRAGEPOSITION + "."
                                    + AnfragepositionFac.FLR_ANFRAGEPOSITION_N_RICHTPREIS,
                            Facade.NICHT_SORTIERBAR }));
        }

        return super.getTableInfo();
    }

    private static String buildReportWhereClause(FilterKriterium[] aFilterKriteriumI) {
        StringBuffer where = new StringBuffer("");

        if (aFilterKriteriumI != null && aFilterKriteriumI.length > 0) {
            for (int i = 0; i < aFilterKriteriumI.length; i++) {
                if (aFilterKriteriumI[i].value != null) {

                    where.append(FLR_ANFRAGEPOSITIONLIEFERDATEN + aFilterKriteriumI[i].kritName)
                            .append(aFilterKriteriumI[i].operator).append(aFilterKriteriumI[i].value)
                            .append(" AND ");
                }
            }
        }

        String whereString = "";

        if (where.length() > 0) {
            where.insert(0, " WHERE ");
            whereString = where.substring(0, where.length() - 5); // dads letzte
            // " AND "
            // abschneiden
        }

        return whereString;
    }

    private static String buildReportOrderByClause(SortierKriterium[] aSortierKriteriumI) {
        StringBuffer orderby = new StringBuffer("");

        if (aSortierKriteriumI != null && aSortierKriteriumI.length > 0) {
            for (int i = 0; i < aSortierKriteriumI.length; i++) {
                if (aSortierKriteriumI[i].value.equals("true")) {
                    orderby.append(FLR_ANFRAGEPOSITIONLIEFERDATEN + aSortierKriteriumI[i].kritName + " ,");
                }
            }
        }

        String orderbyString = "";

        if (orderby.length() > 0) {
            orderby.insert(0, " ORDER BY ");
            orderbyString = orderby.substring(0, orderby.length() - 2); // das
            // letzte
            // " ,"
            // abschneiden
        }

        return orderbyString;
    }
}