import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.design.*;
import net.sf.jasperreports.jackson.util.*;
import java.io.*;

/**
 * Generate a minimal JasperDesign programmatically, then serialize it
 * via JacksonUtil to show the correct 7.x XML format.
 */
public class JrxmlGen {
    public static void main(String[] args) throws Exception {
        JasperDesign design = new JasperDesign();
        design.setName("TestReport");
        design.setPageWidth(595);
        design.setPageHeight(842);
        design.setColumnWidth(555);
        design.setLeftMargin(20);
        design.setRightMargin(20);
        design.setTopMargin(20);
        design.setBottomMargin(20);
        design.setWhenNoDataType(com.fasterxml.jackson.databind.node.TextNode.valueOf("AllSectionsNoDetail"));

        design.setQuery("SELECT 1");

        JRDesignBand titleBand = new JRDesignBand();
        titleBand.setHeight(50);
        JRDesignStaticText st = new JRDesignStaticText();
        st.setX(0);
        st.setY(0);
        st.setWidth(555);
        st.setHeight(30);
        st.setText("HELLO WORLD");
        titleBand.addElement(st);
        design.setTitle(titleBand);

        JRDesignBand detailBand = new JRDesignBand();
        detailBand.setHeight(20);
        JRDesignStaticText dt = new JRDesignStaticText();
        dt.setX(0);
        dt.setY(0);
        dt.setWidth(555);
        dt.setHeight(20);
        dt.setText("test row");
        detailBand.addElement(dt);
        design.setDetail(detailBand);

        JacksonUtil util = JacksonUtil.getInstance(DefaultJasperReportsContext.getInstance());
        String xml = util.saveXml(design);
        System.out.println("=== Serialized 7.x JRXML ===");
        System.out.println(xml);

        String outPath = "D:/Idea Project/jaspersoft/tmp/test_reference.jrxml";
        try (FileWriter fw = new FileWriter(outPath)) {
            fw.write(xml);
        }
        System.out.println("\nSaved to: " + outPath);
    }
}