package net.sourceforge.fenixedu.presentationTier.renderers;

import net.sourceforge.fenixedu.domain.student.Student;
import pt.ist.fenixWebFramework.renderers.NumberInputRenderer;
import pt.ist.fenixWebFramework.renderers.components.HtmlComponent;
import pt.ist.fenixWebFramework.renderers.components.converters.ConversionException;
import pt.ist.fenixWebFramework.renderers.components.converters.Converter;
import pt.ist.fenixWebFramework.renderers.converters.IntegerNumberConverter;

public class StudentByNumberInputRenderer extends NumberInputRenderer {

    @Override
    public HtmlComponent render(Object targetObject, Class type) {
	if (targetObject == null) {
	    return super.render(null, type);
	} else {
	    Student student = (Student) targetObject;
	    return super.render(student.getNumber(), type);
	}
    }

    @Override
    protected Converter getConverter() {
	return new StudentNumberConverter();
    }

    public static class StudentNumberConverter extends Converter {

	/**
	 * Default Serial id.
	 */
	private static final long serialVersionUID = 1L;

	@Override
	public Object convert(Class type, Object value) {
	    try {
		IntegerNumberConverter converter = new IntegerNumberConverter();
		Integer studentNumber = (Integer) converter.convert(type, value);

		return Student.readStudentByNumber(studentNumber);
	    } catch (ConversionException e) {
		return null;
	    }
	}

    }
}