protected void registerEntity(Entity entity) {
DJGroupVariable columnsGroupVariable = (DJGroupVariable) entity;
try {
String name =
this.getDjd().getName()
+ "_"
+ columnsGroupVariable
.getColumnToApplyOperation()
.getGroupVariableName(type, columnToGroupByProperty);
columnsGroupVariable.setName(name);
if (columnsGroupVariable.getValueExpression() == null) {
JRDesignVariable jrVariable = (JRDesignVariable) transformEntity(entity);
log.debug(
"registering group variable "
+ jrVariable.getName()
+ " ("
+ jrVariable.getValueClassName()
+ ")");
getDjd().addVariable(jrVariable);
registerValueFormatter(columnsGroupVariable, jrVariable.getName());
} else {
registerCustomExpressionParameter(
name + "_valueExpression", columnsGroupVariable.getValueExpression());
}
if (columnsGroupVariable.getPrintWhenExpression() != null) {
registerCustomExpressionParameter(
name + "_printWhenExpression", columnsGroupVariable.getPrintWhenExpression());
}
if (columnsGroupVariable.getLabel() != null
&& columnsGroupVariable.getLabel().getLabelExpression() != null) {
registerCustomExpressionParameter(
name + "_labelExpression", columnsGroupVariable.getLabel().getLabelExpression());
}
} catch (JRException e) {
throw new EntitiesRegistrationException(e.getMessage(), e);
}
}
protected Object transformEntity(Entity entity) {
DJGroupVariable groupVariable = (DJGroupVariable) entity;
AbstractColumn col = groupVariable.getColumnToApplyOperation();
String variableName = groupVariable.getName();
log.debug("transforming group variable " + variableName);
DJCalculation op = groupVariable.getOperation();
JRDesignExpression expression = new JRDesignExpression();
// only variables from the last registered group are important now
List groupsList = getDjd().getGroupsList();
JRDesignGroup registeredGroup = (JRDesignGroup) groupsList.get(groupsList.size() - 1);
if (col instanceof ExpressionColumn
&& ((ExpressionColumn) col).getExpressionForCalculation() != null) {
ExpressionColumn expcol = (ExpressionColumn) col;
expression.setText(expcol.getTextForExpressionForCalculartion());
expression.setValueClassName(expcol.getExpressionForCalculation().getClassName());
} else if (col instanceof PercentageColumn) {
PercentageColumn pcol = (PercentageColumn) col;
expression.setText(pcol.getPercentageColumn().getTextForExpression());
expression.setValueClassName(pcol.getPercentageColumn().getValueClassNameForExpression());
DJGroup djgroup = groupVariable.getGroup();
registeredGroup =
LayoutUtils.findParentJRGroup(djgroup, getDynamicReport(), getDjd(), getLayoutManager());
} else {
if (col.getTextFormatter() != null) {
PropertyColumn pcol = (PropertyColumn) col;
expression.setText("$F{" + pcol.getColumnProperty().getProperty() + "}");
expression.setValueClassName(pcol.getColumnProperty().getValueClassName());
} else {
expression.setText(col.getTextForExpression());
expression.setValueClassName(col.getValueClassNameForExpression());
}
}
JRDesignVariable variable = new JRDesignVariable();
variable.setExpression(expression);
variable.setCalculation(CalculationEnum.getByValue(groupVariable.getOperation().getValue()));
variable.setName(variableName);
variable.setResetType(ResetTypeEnum.GROUP);
variable.setResetGroup(registeredGroup);
String valueClassName = col.getVariableClassName(op);
String initialExpression = col.getInitialExpression(op);
// if (DJCalculation.SYSTEM.equals(groupVariable.getOperation())){
// variable.setValueClassName(Object.class.getName());
// } else {
// }
variable.setValueClassName(valueClassName);
if (initialExpression != null) {
JRDesignExpression initialExp = new JRDesignExpression();
initialExp.setText(initialExpression);
initialExp.setValueClassName(valueClassName);
variable.setInitialValueExpression(initialExp);
}
return variable;
}