org.openbravo.event.GLJournalEventHandler.java Source code

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Here is the source code for org.openbravo.event.GLJournalEventHandler.java

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/*
 *************************************************************************
 * The contents of this file are subject to the Openbravo  Public  License
 * Version  1.0  (the  "License"),  being   the  Mozilla   Public  License
 * Version 1.1  with a permitted attribution clause; you may not  use this
 * file except in compliance with the License. You  may  obtain  a copy of
 * the License at http://www.openbravo.com/legal/license.html
 * Software distributed under the License  is  distributed  on  an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific  language  governing  rights  and  limitations
 * under the License.
 * The Original Code is Openbravo ERP.
 * The Initial Developer of the Original Code is Openbravo SLU
 * All portions are Copyright (C) 2015 Openbravo SLU
 * All Rights Reserved.
 * Contributor(s):  ______________________________________.
 *************************************************************************
 */
package org.openbravo.event;

import javax.enterprise.event.Observes;

import org.apache.log4j.Logger;
import org.hibernate.ScrollMode;
import org.hibernate.ScrollableResults;
import org.hibernate.criterion.Restrictions;
import org.openbravo.base.model.Entity;
import org.openbravo.base.model.ModelProvider;
import org.openbravo.base.model.Property;
import org.openbravo.client.kernel.event.EntityPersistenceEventObserver;
import org.openbravo.client.kernel.event.EntityUpdateEvent;
import org.openbravo.dal.service.OBCriteria;
import org.openbravo.dal.service.OBDal;
import org.openbravo.model.financialmgmt.gl.GLJournal;
import org.openbravo.model.financialmgmt.gl.GLJournalLine;

public class GLJournalEventHandler extends EntityPersistenceEventObserver {
    protected Logger logger = Logger.getLogger(this.getClass());
    private static Entity[] entities = { ModelProvider.getInstance().getEntity(GLJournal.ENTITY_NAME) };

    @Override
    protected Entity[] getObservedEntities() {
        return entities;
    }

    public void onUpdate(@Observes EntityUpdateEvent event) {
        if (!isValidEvent(event)) {
            return;
        }
        final GLJournal glj = (GLJournal) event.getTargetInstance();
        // Update GLJournalLine with updated Currency and Currency Rate.
        final Entity gljournal = ModelProvider.getInstance().getEntity(GLJournal.ENTITY_NAME);
        final Property currencyProperty = gljournal.getProperty(GLJournal.PROPERTY_CURRENCY);
        final Property currencyRate = gljournal.getProperty(GLJournal.PROPERTY_RATE);
        if (!event.getCurrentState(currencyProperty).equals(event.getPreviousState(currencyProperty))
                || !event.getCurrentState(currencyRate).equals(event.getPreviousState(currencyRate))) {
            OBCriteria<GLJournalLine> gljournallineCriteria = OBDal.getInstance()
                    .createCriteria(GLJournalLine.class);
            gljournallineCriteria.add(Restrictions.eq(GLJournalLine.PROPERTY_JOURNALENTRY, glj));
            ScrollableResults scrollLines = gljournallineCriteria.scroll(ScrollMode.FORWARD_ONLY);

            try {
                if (gljournallineCriteria.count() > 0) {
                    int i = 0;
                    while (scrollLines.next()) {
                        final GLJournalLine journalLine = (GLJournalLine) scrollLines.get()[0];
                        if (!glj.getCurrency().getId().equals(journalLine.getCurrency().getId())) {
                            journalLine.setCurrency(glj.getCurrency());
                            OBDal.getInstance().save(journalLine);
                        }
                        if (!glj.getRate().equals(journalLine.getRate())) {
                            journalLine.setRate(glj.getRate());
                            OBDal.getInstance().save(journalLine);
                        }
                        i++;
                        if (i % 100 == 0) {
                            OBDal.getInstance().flush();
                            OBDal.getInstance().getSession().clear();
                        }
                    }
                }
            } finally {
                scrollLines.close();
            }
        }
    }
}