private static FontQualifier getQualfierFromConfiguration(Configuration cfg)
throws FOPException {
String fontFamily = cfg.getAttribute("font-family", null);
if (fontFamily == null) {
throw new FOPException("substitution qualifier must have a font-family");
}
FontQualifier qualifier = new FontQualifier();
qualifier.setFontFamily(fontFamily);
String fontWeight = cfg.getAttribute("font-weight", null);
if (fontWeight != null) {