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/**
* Copyright (C) 2019 Bonitasoft S.A.
* Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation
* version 2.1 of the License.
* This library 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 Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301, USA.
**/
package org.bonitasoft.engine.business.application.impl;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.bonitasoft.engine.business.application.ApplicationService;
import org.bonitasoft.engine.business.application.model.SApplicationMenu;
import org.bonitasoft.engine.business.application.model.builder.impl.SApplicationMenuUpdateBuilderImpl;
import org.bonitasoft.engine.commons.exceptions.SObjectModificationException;
import org.bonitasoft.engine.persistence.FilterOption;
import org.bonitasoft.engine.persistence.OrderByOption;
import org.bonitasoft.engine.persistence.OrderByType;
import org.bonitasoft.engine.persistence.QueryOptions;
import org.bonitasoft.engine.persistence.SBonitaReadException;
/**
* @author Elias Ricken de Medeiros
*/
public class IndexUpdater {
private ApplicationService applicationService;
private int maxResults;
public IndexUpdater(ApplicationService applicationService, int maxResults) {
this.applicationService = applicationService;
this.maxResults = maxResults;
}
public void incrementIndexes(Long parentId, int from, int to)
throws SBonitaReadException, SObjectModificationException {
updateIndexes(parentId, from, to, 1);
}
public void decrementIndexes(Long parentId, int from, int to)
throws SBonitaReadException, SObjectModificationException {
updateIndexes(parentId, from, to, -1);
}
private void updateIndexes(Long parentId, int from, int to, int offSet)
throws SObjectModificationException, SBonitaReadException {
if (to >= from) {
List menusToUpdate = null;
int firstResult = 0;
do {
menusToUpdate = getCurrentPage(parentId, from, to, firstResult);
firstResult += maxResults;
updateIndexes(menusToUpdate, offSet);
} while (menusToUpdate.size() == maxResults);
}
}
private List getCurrentPage(Long parentId, int from, int to, int firstResult)
throws SBonitaReadException {
List orderBy = Collections
.singletonList(new OrderByOption(SApplicationMenu.class, SApplicationMenu.INDEX, OrderByType.ASC));
List filters = Arrays
.asList(new FilterOption(SApplicationMenu.class, SApplicationMenu.INDEX, from, to), new FilterOption(
SApplicationMenu.class, SApplicationMenu.PARENT_ID, parentId));
QueryOptions options = new QueryOptions(firstResult, maxResults, orderBy, filters, null);
return applicationService.searchApplicationMenus(options);
}
private void updateIndexes(List menusToUpdate, int offSet) throws SObjectModificationException {
for (SApplicationMenu menuToUpdate : menusToUpdate) {
SApplicationMenuUpdateBuilderImpl builder = new SApplicationMenuUpdateBuilderImpl();
builder.updateIndex(menuToUpdate.getIndex() + offSet);
applicationService.updateApplicationMenu(menuToUpdate, builder.done(), false);
}
}
}
