/*
* 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 java.util.Iterator;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.design.JRDesignExpression;
import net.sf.jasperreports.engine.design.JRDesignField;
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.ColumnProperty;
import ar.com.fdvs.dj.domain.DJCalculation;
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.DJGroupVariableDef;
import ar.com.fdvs.dj.domain.entities.Entity;
import ar.com.fdvs.dj.domain.entities.columns.AbstractColumn;
import ar.com.fdvs.dj.domain.entities.columns.ExpressionColumn;
import ar.com.fdvs.dj.domain.entities.columns.PropertyColumn;
import ar.com.fdvs.dj.util.ExpressionUtils;
/**
* Manager invoked to register temporal variables for groups of columns. </br>
* A ColumnsGroupVariable is read and transformed into a JRDesignVariable. </br>
* </br>
* @see DJGroup
*/
public class DJGroupVariableDefRegistrationManager extends AbstractEntityRegistrationManager {
private static final Log log = LogFactory.getLog(DJGroupVariableDefRegistrationManager.class);
JRDesignGroup group = null;
public DJGroupVariableDefRegistrationManager(DynamicJasperDesign jd, DynamicReport dr, LayoutManager layoutManager, JRDesignGroup group) {
super(jd,dr,layoutManager);
this.group = group;
}
protected void registerEntity(Entity entity) {
log.debug("registering group variable...");
try {
JRDesignVariable jrVariable = (JRDesignVariable)transformEntity(entity);
getDjd().addVariable(jrVariable);
} catch (JRException e) {
throw new EntitiesRegistrationException(e.getMessage(),e);
}
}
protected Object transformEntity(Entity entity) {
log.debug("transforming group variable...");
DJGroupVariableDef columnsGroupVariable = (DJGroupVariableDef) entity;
DJCalculation op = columnsGroupVariable.getOperation();
JRDesignExpression expression = new JRDesignExpression();
String valueClassName = null;
String initialExpression = null;
if (columnsGroupVariable.getColumnProperty() != null) { //A variable that operates over a FIELD
ColumnProperty prop = columnsGroupVariable.getColumnProperty();
expression.setText("$F{" + prop.getProperty() + "}");
expression.setValueClassName(prop.getValueClassName());
registerField(prop);
valueClassName = ExpressionUtils.getValueClassNameForOperation(op, prop);
initialExpression = ExpressionUtils.getInitialValueExpressionForOperation(op,prop);
} else {
AbstractColumn col = columnsGroupVariable.getColumnToApplyOperation();
if (col instanceof ExpressionColumn && ((ExpressionColumn)col).getExpressionForCalculation() != null){
ExpressionColumn expcol = (ExpressionColumn)col;
expression.setText(expcol.getTextForExpressionForCalculartion());
expression.setValueClassName(expcol.getExpressionForCalculation().getClassName());
}
else {
expression.setText(col.getTextForExpression());
expression.setValueClassName(col.getValueClassNameForExpression());
}
valueClassName = col.getVariableClassName(op);
initialExpression = col.getInitialExpression(op);
}
JRDesignVariable variable = new JRDesignVariable();
variable.setExpression(expression);
variable.setCalculation(columnsGroupVariable.getOperation().getValue());
variable.setName(columnsGroupVariable.getName());
if (group != null) {
variable.setResetType(JRDesignVariable.RESET_TYPE_GROUP);
variable.setResetGroup(group);
}
variable.setValueClassName(valueClassName);
JRDesignExpression initialExp = new JRDesignExpression();
initialExp.setText(initialExpression);
initialExp.setValueClassName(valueClassName);
variable.setInitialValueExpression(initialExp);
return variable;
}
protected void registerField(ColumnProperty columnProperty) {
JRDesignField field = new JRDesignField();
field.setName(columnProperty.getProperty());
field.setValueClassName(columnProperty.getValueClassName());
log.debug("transforming column property for group variable: " + columnProperty.getProperty() + " (" + columnProperty.getValueClassName() +")");
// field.setDescription(propertyColumn.getFieldDescription()); //hack for XML data source
Iterator iter = columnProperty.getFieldProperties().keySet().iterator();
while (iter.hasNext()) {
String key = (String) iter.next();
field.getPropertiesMap().setProperty(key, (String) columnProperty.getFieldProperties().get(key));
}
try {
if (getDjd().getFieldsMap().get(field.getName())==null){
getDjd().addField(field);
}
} catch (JRException e) {
log.info("The field has already been registered" + ": " + e.getMessage() + ", (skipping)");
}
}
}