@Override
public RRset next() {
if (!this.hasNext()) {
throw new NoSuchElementException();
}
if (current == null) {
wantLastSoa = false;
return originNode.getRRset(Type.SOA);
}
RRset set = current[count++];
if (count == current.length) {
current = null;
while (domainIter.hasNext()) {
String domainString = domainIter.next();
if (domainString.equalsIgnoreCase(zone.getRootDomain())) {
continue;
}
DomainResource dr = getDomainResource(domainString);
if (dr == null) {
continue;
}
List<RRset> sets = dr.getAllRRsets();
if (sets == null || sets.size() == 0) {
continue;
}
current = sets.toArray(new RRset[0]);
count = 0;
break;
}
}
return set;
}
RRsetIterator(Zone zone, DomainFactory factory) {
this.zone = zone;
this.factory = factory;
this.domainIter = zone.iterator();
if (domainIter == null) {
throw new RuntimeException("Null Domain iterator");
}
String rootString = zone.getRootDomain();
this.originNode = getDomainResource(rootString);
if (originNode.getRRset(Type.SOA) == null) {
throw new RuntimeException("Zone " + rootString + " missing SOA record");
}
if (originNode.getRRset(Type.NS) == null) {
throw new RuntimeException("Zone " + rootString + " missing NS rrset");
}
List<RRset> sets = originNode.getAllRRsets();
this.current = new RRset[sets.size()];
for (int j = 2, k = 0; k < sets.size(); k++) {
RRset rrset = sets.get(k);
int type = rrset.getType();
if (type == Type.SOA) {
current[0] = rrset;
} else if (type == Type.NS) {
current[1] = rrset;
} else {
current[j++] = rrset;
}
}
}