/** General parsing used by both parse methods above */
private static void generalParse(XmlTagHandler tag, Document doc) throws XmlParseException {
Element root = doc.getRootElement();
if (!root.getName().equalsIgnoreCase(tag.getName())) {
throw new XmlParseException(
"Incorrect root tag. Expected <" + tag.getName() + "> but got <" + root.getName() + ">");
}
XmlParser.processNode(root, tag, new DummyFilter());
}
private static void checkSubNodes(Element elem, XmlTagHandler tag, XmlFilterHandler filter)
throws XmlAttrException, XmlTagException {
XmlTagInfo[] subTags = tag.getSubTags();
Map hash;
hash = new HashMap();
// First, count how many times each sub-tag is referenced
for (Iterator i = elem.getChildren().iterator(); i.hasNext(); ) {
Element e = (Element) i.next();
String name;
Integer val;
name = e.getName().toLowerCase();
if ((val = (Integer) hash.get(name)) == null) {
val = new Integer(0);
}
val = new Integer(val.intValue() + 1);
hash.put(name, val);
}
for (int i = 0; i < subTags.length; i++) {
String name = subTags[i].getTag().getName().toLowerCase();
Integer iVal = (Integer) hash.get(name);
int threshold = 0, val;
val = iVal == null ? 0 : iVal.intValue();
switch (subTags[i].getType()) {
case XmlTagInfo.REQUIRED:
if (val == 0) {
throw new XmlMissingTagException(elem, name);
} else if (val != 1) {
throw new XmlTooManyTagException(elem, name);
}
break;
case XmlTagInfo.OPTIONAL:
if (val > 1) {
throw new XmlTooManyTagException(elem, name);
}
break;
case XmlTagInfo.ONE_OR_MORE:
threshold++;
case XmlTagInfo.ZERO_OR_MORE:
if (val < threshold) {
throw new XmlMissingTagException(elem, name);
}
break;
}
hash.remove(name);
}
// Now check for excess sub-tags
if (hash.size() != 0) {
Set keys = hash.keySet();
throw new XmlTooManyTagException(elem, (String) keys.iterator().next());
}
// Recurse to all sub-tags
for (Iterator i = elem.getChildren().iterator(); i.hasNext(); ) {
Element child = (Element) i.next();
for (int j = 0; j < subTags.length; j++) {
XmlTagHandler subTag = subTags[j].getTag();
String subName = subTag.getName();
if (child.getName().equalsIgnoreCase(subName)) {
XmlParser.processNode(child, subTag, filter);
break;
}
}
}
}
