public JRGroovyCompiler() 
{
		super(false);
}

 protected  void checkLanguage(String language) throws JRException 
{
		if (
			!JRReport.LANGUAGE_GROOVY.equals(language)
			&& !JRReport.LANGUAGE_JAVA.equals(language)
			)
		{
			throw 
				new JRException(
					"Language \"" + language 
					+ "\" not supported by this report compiler.\n"
					+ "Expecting \"groovy\" or \"java\" instead."
					);
		}
}

 protected String compileUnits(JRCompilationUnit[] units,
    String classpath,
    File tempDirFile) throws JRException 
{
		CompilerConfiguration config = new CompilerConfiguration();
		//config.setClasspath(classpath);
		CompilationUnit unit = new CompilationUnit(config);
		for (int i = 0; i <  units.length; i++)
		{
			unit.addSource("calculator_" + units[i].getName(), new ByteArrayInputStream(units[i].getSourceCode().getBytes()));
		}
		ClassCollector collector = new ClassCollector();
		unit.setClassgenCallback(collector);
		try 
		{
			unit.compile(Phases.CLASS_GENERATION);
		} 
		catch (CompilationFailedException e) 
		{
			throw new JRException(
				"Errors were encountered when compiling report expressions class file:\n" 
				+ e.toString()
				);
		}
		if (collector.classes.size() <  units.length) 
		{
			throw new JRException("Too few groovy class were generated.");
		} 
		else if (collector.classCount  > units.length) 
		{
			throw new JRException(
				"Too many groovy classes were generated.\n"
				+ "Please make sure that you don't use Groovy features such as closures that are not supported by this report compiler.\n"
				);
		}
		for (int i = 0; i <  units.length; i++)
		{
			units[i].setCompileData((Serializable) collector.classes.get(units[i].getName()));
		}
		return null;
}

 protected JRCompilationSourceCode generateSourceCode(JRSourceCompileTask sourceTask) throws JRException 
{
		return new JRDefaultCompilationSourceCode(JRGroovyGenerator.generateClass(sourceTask), null);
}

 protected String getSourceFileName(String unitName) 
{
		return unitName + ".groovy";
}