Groovier reports with groovy & jasperreports

GroovierReport.groovy

import java.awt.Color;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.design.*;
import net.sf.jasperreports.engine.type.*;
import net.sf.jasperreports.view.JasperViewer

class GroovierReport {
  static void main(String[] args) {
		
		def builder = new ObjectGraphBuilder()
		builder.classNameResolver = "net.sf.jasperreports.engine.design"

		def jasperDesign = builder.jasperDesign(  
			name : "GroovierReport",
			columnCount : 1,
			pageWidth : 612,
			pageHeight : 792,
			columnWidth : 562,
			columnSpacing : 0,
			leftMargin : 30,
			rightMargin : 20,
			topMargin : 30,
			bottomMargin : 30,
			whenNoDataType : WhenNoDataTypeEnum.ALL_SECTIONS_NO_DETAIL,
			titleNewPage : Boolean.FALSE,
			summaryNewPage : Boolean.FALSE,
		)		
		
		def titleStyle = builder.jRDesignStyle(  
			name : "titleStyle",
			fontName : "Arial",
			forecolor : Color.BLUE,
			fontSize : 20,
			bold : true,
			italic : false,
			underline : false,
			strikeThrough : false,
			pdfEmbedded : true,
		)	
		
		jasperDesign.addStyle(titleStyle);	
		
		def titleBand = builder.jRDesignBand(height: 50)
		
		def textField = builder.jRDesignTextField(
			stretchWithOverflow: true,
			blankWhenNull: true,
			style: titleStyle,
			x: 10,
			y: 10,
			width: 200,
			height: 13,
			key: "titleTextField",
		)
		
		def expression=new JRDesignExpression();
		expression.setValueClass(String.class);
		expression.setText("\"Hello world!\"");

		textField.setExpression(expression);
		
		textField.getLineBox().setPadding(1);
		textField.getLineBox().getPen().setLineWidth(0);
		textField.getLineBox().getPen().setLineColor(Color.BLACK);
		
    titleBand.addElement(textField);
		jasperDesign.setTitle(titleBand);
		
		def jasperReport = JasperCompileManager.compileReport(jasperDesign);
		def jasperPrint = JasperFillManager.fillReport(jasperReport, new HashMap());		
		
		JasperViewer.viewReport(jasperPrint);		
  }	
}