private FilterDirective[] buildFilterDirectives(Element element) throws Exception {
if (null == element) {
return new FilterDirective[0];
} else {
Element[] children = ElementHelper.getChildren(element);
FilterDirective[] filters = new FilterDirective[children.length];
for (int i = 0; i < children.length; i++) {
Element child = children[i];
String token = ElementHelper.getAttribute(child, "token");
if ("filter".equals(child.getTagName())) {
String value = ElementHelper.getAttribute(child, "value");
filters[i] = new SimpleFilterDirective(token, value);
} else if ("feature".equals(child.getTagName())) {
String id = ElementHelper.getAttribute(child, "id").toUpperCase();
Feature feature = Feature.valueOf(id);
String ref = ElementHelper.getAttribute(child, "ref");
String type = ElementHelper.getAttribute(child, "type");
boolean alias = ElementHelper.getBooleanAttribute(child, "alias");
filters[i] = new FeatureFilterDirective(token, ref, feature, type, alias);
} else {
final String error =
"Element name not recognized [" + child.getTagName() + "] (expecting 'filter').";
throw new DecodingException(error, null, element);
}
}
return filters;
}
}
