ColumnSubreportDataReport

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ColumnSubreportDataReport

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/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2015 Ricardo Mariaca
 * http://www.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.column;

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

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import net.sf.dynamicreports.examples.Templates;
import net.sf.dynamicreports.jasper.builder.JasperReportBuilder;
import net.sf.dynamicreports.report.base.expression.AbstractSimpleExpression;
import net.sf.dynamicreports.report.builder.component.SubreportBuilder;
import net.sf.dynamicreports.report.definition.ReportParameters;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import net.sf.jasperreports.engine.data.JRMapCollectionDataSource;

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

	public ColumnSubreportDataReport() {
		build();
	}

	private void build() {
		SubreportBuilder subreport = cmp.subreport(new SubreportDesign())
			.setDataSource(new SubreportData());
		try {
			report()
			  .setTemplate(Templates.reportTemplate)
			  .fields(field("comments", List.class))
			  .columns(
			  	col.column("Item", "item", type.stringType()),
			  	col.column("Quantity", "quantity", type.integerType()),
			  	col.componentColumn("Comments", subreport))
			  .title(Templates.createTitleComponent("ColumnSubreportData"))
			  .pageFooter(Templates.footerComponent)
			  .setDataSource(createDataSource())
			  .show();
		} catch (DRException e) {
			e.printStackTrace();
		}
	}

	private class SubreportDesign extends AbstractSimpleExpression<JasperReportBuilder> {
		private static final long serialVersionUID = 1L;

		@Override
		public JasperReportBuilder evaluate(ReportParameters reportParameters) {
			JasperReportBuilder report = report()
				.columns(col.column("comment", type.stringType()));
			return report;
		}
	}

	private class SubreportData extends AbstractSimpleExpression<JRDataSource> {
		private static final long serialVersionUID = 1L;

		@Override
		public JRDataSource evaluate(ReportParameters reportParameters) {
			Collection<Map<String, ?>> value = reportParameters.getValue("comments");
			return new JRMapCollectionDataSource(value);
		}
	}

  private JRDataSource createDataSource() {
  	List<ReportData> datasource = new ArrayList<ReportData>();

  	ReportData data = new ReportData();
  	List<Map<String, Object>> comments = new ArrayList<Map<String, Object>>();
  	Map<String, Object> values = new HashMap<String, Object>();
  	values.put("comment", "comment1");
  	comments.add(values);
  	values = new HashMap<String, Object>();
  	values.put("comment", "comment2");
  	comments.add(values);
  	values = new HashMap<String, Object>();
  	values.put("comment", "comment3");
  	comments.add(values);
  	data.setItem("Book");
  	data.setQuantity(new Integer(10));
  	data.setComments(comments);
  	datasource.add(data);

  	data = new ReportData();
  	comments = new ArrayList<Map<String, Object>>();
  	values = new HashMap<String, Object>();
  	values.put("comment", "comment1");
  	comments.add(values);
  	values = new HashMap<String, Object>();
  	values.put("comment", "comment2");
  	comments.add(values);
  	data.setItem("Notebook");
  	data.setQuantity(new Integer(20));
  	data.setComments(comments);
  	datasource.add(data);

		return new JRBeanCollectionDataSource(datasource);
	}

	public class ReportData {
		private String item;
		private Integer quantity;
		private List<Map<String, Object>> comments;

		public String getItem() {
			return item;
		}

		public void setItem(String item) {
			this.item = item;
		}

		public Integer getQuantity() {
			return quantity;
		}

		public void setQuantity(Integer quantity) {
			this.quantity = quantity;
		}

		public List<Map<String, Object>> getComments() {
			return comments;
		}

		public void setComments(List<Map<String, Object>> comments) {
			this.comments = comments;
		}
	}

	public static void main(String[] args) {
		new ColumnSubreportDataReport();
	}
}
 
Tags: column, subreport, datasource

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