/*
* DynamicJasper: A library for creating reports dynamically by specifying
* columns, groups, styles, etc. at runtime. It also saves a lot of development
* time in many cases! (http://sourceforge.net/projects/dynamicjasper)
*
* Copyright (C) 2008 FDV Solutions (http://www.fdvsolutions.com)
*
* 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; either
*
* version 2.1 of the License, or (at your option) any later version.
*
* 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 library; if not, write to the Free Software
*
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*
*/
package ar.com.fdvs.dj.core.registration;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.design.JRDesignBand;
import net.sf.jasperreports.engine.design.JRDesignExpression;
import net.sf.jasperreports.engine.design.JRDesignGroup;
import net.sf.jasperreports.engine.design.JRDesignVariable;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import ar.com.fdvs.dj.core.layout.LayoutManager;
import ar.com.fdvs.dj.domain.CustomExpression;
import ar.com.fdvs.dj.domain.DynamicJasperDesign;
import ar.com.fdvs.dj.domain.DynamicReport;
import ar.com.fdvs.dj.domain.entities.DJGroup;
import ar.com.fdvs.dj.domain.entities.Entity;
import ar.com.fdvs.dj.domain.entities.columns.GlobalGroupColumn;
import ar.com.fdvs.dj.domain.entities.columns.PropertyColumn;
import ar.com.fdvs.dj.util.ExpressionUtils;
/**
* Manager invoked to register groups of columns. A ColumnsGroup is read and </br>
* transformed into a JRDesignGroup.</br>
* </br>
* @see DJGroup
*/
public class DJGroupRegistrationManager extends AbstractEntityRegistrationManager {
private static final Log log = LogFactory.getLog(DJGroupRegistrationManager.class);
public DJGroupRegistrationManager(DynamicJasperDesign jd, DynamicReport dr, LayoutManager layoutManager) {
super(jd,dr,layoutManager);
}
protected void registerEntity(Entity entity) {
log.debug("registering group...");
DJGroup columnsGroup = (DJGroup) entity;
try {
JRDesignGroup group = (JRDesignGroup)transformEntity(columnsGroup);
getDjd().addGroup(group);
//Variables are registered right after the group where they belong.
String property = columnsGroup.getColumnToGroupBy().getColumnProperty().getProperty();
ColumnsGroupVariablesRegistrationManager headerVariablesRM = new ColumnsGroupVariablesRegistrationManager(ColumnsGroupVariablesRegistrationManager.HEADER, property, getDjd(),getDynamicReport(),getLayoutManager());
headerVariablesRM.registerEntities(columnsGroup.getHeaderVariables());
ColumnsGroupVariablesRegistrationManager footerVariablesRM = new ColumnsGroupVariablesRegistrationManager(ColumnsGroupVariablesRegistrationManager.FOOTER, property, getDjd(),getDynamicReport(),getLayoutManager());
footerVariablesRM.registerEntities(columnsGroup.getFooterVariables());
} catch (JRException e) {
throw new EntitiesRegistrationException(e.getMessage());
}
}
//PropertyColumn only can be used for grouping (not OperationColumn)
protected Object transformEntity(Entity entity) {
log.debug("transforming group...");
DJGroup djgroup = (DJGroup) entity;
PropertyColumn column = djgroup.getColumnToGroupBy();
JRDesignGroup group = new JRDesignGroup();
int groupIndex = getDynamicReport().getColumnsGroups().indexOf(djgroup);
int columnIndex = getDynamicReport().getColumns().indexOf(djgroup.getColumnToGroupBy());
if (column instanceof GlobalGroupColumn){
group.setName("global_column_" + groupIndex);
} else {
group.setName( "group["+groupIndex+"]_for_column_" + columnIndex + "-" + column.getTitle());
}
getLayoutManager().getReferencesMap().put(group.getName(), djgroup);
group.setCountVariable(new JRDesignVariable());
group.setGroupFooter(new JRDesignBand());
group.setGroupHeader(new JRDesignBand());
JRDesignExpression jrExpression = new JRDesignExpression();
CustomExpression expressionToGroupBy = column.getExpressionToGroupBy();
if (expressionToGroupBy != null) { //new in 3.0.7-b5
String expToGroupByName = group.getName() + "_expression_to_group_by";
registerCustomExpressionParameter(expToGroupByName, expressionToGroupBy);
String expText = ExpressionUtils.createCustomExpressionInvocationText(expToGroupByName);
jrExpression.setText(expText);
log.debug("Expression for CustomExpression = " + expText);
jrExpression.setValueClassName(expressionToGroupBy.getClassName());
} else {
jrExpression.setText(column.getTextForExpression());
jrExpression.setValueClassName(column.getValueClassNameForExpression());
}
group.setExpression(jrExpression);
group.setCountVariable(new JRDesignVariable());
return group;
}
}