reportBuilder.band(main);
reportBuilder.band(items);
reportBuilder.format(new ReportFieldFormatImpl("Main.signature", "${html}"));
Report report = reportBuilder.build();
Reporting reporting = new Reporting();
reporting.setFormatterFactory(new DefaultFormatterFactory());
reporting.setLoaderFactory(
new DefaultLoaderFactory().setGroovyDataLoader(new GroovyDataLoader(new DefaultScriptingImpl())));