CustomTextSubtotalReport

CustomSubtotalReport

Examples overview

FieldSubtotalReport

CustomTextSubtotalReport

/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2015 Ricardo Mariaca
 * http://dynamicreports.org
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports 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 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports 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 DynamicReports. If not, see <http://www.gnu.org/licenses/>.
 */

package net.sf.dynamicreports.examples.subtotal;

import static net.sf.dynamicreports.report.builder.DynamicReports.*;

import java.math.BigDecimal;

import net.sf.dynamicreports.examples.Templates;
import net.sf.dynamicreports.report.base.expression.AbstractSimpleExpression;
import net.sf.dynamicreports.report.builder.VariableBuilder;
import net.sf.dynamicreports.report.builder.column.TextColumnBuilder;
import net.sf.dynamicreports.report.builder.component.TextFieldBuilder;
import net.sf.dynamicreports.report.builder.group.ColumnGroupBuilder;
import net.sf.dynamicreports.report.builder.style.StyleBuilder;
import net.sf.dynamicreports.report.constant.Calculation;
import net.sf.dynamicreports.report.constant.Evaluation;
import net.sf.dynamicreports.report.constant.HorizontalAlignment;
import net.sf.dynamicreports.report.datasource.DRDataSource;
import net.sf.dynamicreports.report.definition.ReportParameters;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;

/**
 * @author Ricardo Mariaca (r.mariaca@dynamicreports.org)
 */
public class CustomTextSubtotalReport {

        public CustomTextSubtotalReport() {
                build();
        }

        private void build() {
                TextColumnBuilder<String> countryColumn = col.column("Country", "country", type.stringType());
                TextColumnBuilder<String> itemColumn = col.column("Item", "item", type.stringType());
                TextColumnBuilder<Integer> quantityColumn = col.column("Quantity", "quantity", type.integerType());
                TextColumnBuilder<BigDecimal> priceColumn = col.column("Price", "price", type.bigDecimalType());

                ColumnGroupBuilder countryGroup = grp.group(countryColumn);

                VariableBuilder<Integer> quantitySum = variable(quantityColumn, Calculation.SUM);
                VariableBuilder<BigDecimal> priceSum = variable(priceColumn, Calculation.SUM);

                VariableBuilder<Integer> quantityGrpSum = variable(quantityColumn, Calculation.SUM);
                quantityGrpSum.setResetGroup(countryGroup);
                VariableBuilder<BigDecimal> priceGrpSum = variable(priceColumn, Calculation.SUM);
                priceGrpSum.setResetType(Evaluation.FIRST_GROUP);

                StyleBuilder subtotalStyle = stl.style()
                        .bold()
                        .setTopBorder(stl.pen1Point())
                        .setHorizontalAlignment(HorizontalAlignment.CENTER);

                TextFieldBuilder<String> summarySbt = cmp.text(new CustomTextSubtotal(quantitySum, priceSum))
                        .setStyle(subtotalStyle);

                TextFieldBuilder<String> groupSbt = cmp.text(new CustomTextSubtotal(quantityGrpSum, priceGrpSum))
                        .setStyle(subtotalStyle);

                countryGroup.footer(groupSbt);

                try {
                        report()
                                .setTemplate(Templates.reportTemplate)
                                .variables(
                                        quantitySum, priceSum, quantityGrpSum, priceGrpSum)
                                .columns(
                                        countryColumn, itemColumn, quantityColumn, priceColumn)
                                .groupBy(
                                        countryGroup)
                                .summary(
                                        summarySbt)
                                .title(Templates.createTitleComponent("CustomTextSubtotal"))
                                .pageFooter(Templates.footerComponent)
                                .setDataSource(createDataSource())
                                .show();
                } catch (DRException e) {
                        e.printStackTrace();
                }
        }

        private class CustomTextSubtotal extends AbstractSimpleExpression<String> {
                private static final long serialVersionUID = 1L;

                private VariableBuilder<Integer> quantitySum;
                private VariableBuilder<BigDecimal> priceSum;

                public CustomTextSubtotal(VariableBuilder<Integer> quantitySum, VariableBuilder<BigDecimal> priceSum) {
                        this.quantitySum = quantitySum;
                        this.priceSum = priceSum;
                }

                @Override
                public String evaluate(ReportParameters reportParameters) {
                        Integer quantitySumValue = reportParameters.getValue(quantitySum);
                        BigDecimal priceSumValue = reportParameters.getValue(priceSum);
                        BigDecimal unitPriceSbt = priceSumValue.divide(new BigDecimal(quantitySumValue), 2, BigDecimal.ROUND_HALF_UP);
                        return "sum(quantity) = " + type.integerType().valueToString(quantitySum, reportParameters) + ", " +
                                "sum(price) = " + type.bigDecimalType().valueToString(priceSum, reportParameters) + ", " +
                                "sum(price) / sum(quantity) = " + type.bigDecimalType().valueToString(unitPriceSbt, reportParameters.getLocale());
                }
        }

        private JRDataSource createDataSource() {
                DRDataSource dataSource = new DRDataSource("country", "item", "quantity", "price");
                dataSource.add("USA", "Tablet", 4, new BigDecimal(600));
                dataSource.add("USA", "Tablet", 3, new BigDecimal(570));
                dataSource.add("USA", "Laptop", 2, new BigDecimal(500));
                dataSource.add("USA", "Laptop", 1, new BigDecimal(420));
                dataSource.add("Canada", "Tablet", 6, new BigDecimal(720));
                dataSource.add("Canada", "Tablet", 2, new BigDecimal(360));
                dataSource.add("Canada", "Laptop", 3, new BigDecimal(900));
                dataSource.add("Canada", "Laptop", 2, new BigDecimal(780));
                return dataSource;
        }

        public static void main(String[] args) {
                new CustomTextSubtotalReport();
        }
}