protected TermsEnum filter(Terms terms, AtomicReader reader) throws IOException {
TermsEnum iterator = terms.iterator(null);
if (iterator == null) {
return null;
}
if (iterator != null && frequency != null) {
iterator = FrequencyFilter.filter(iterator, terms, reader, frequency);
}
if (iterator != null && regex != null) {
iterator = RegexFilter.filter(iterator, terms, reader, regex);
}
return iterator;
}
public CompiledRegexFilter(RegexFilter filter) {
super(filter.enabled, filter.getMatchType(), filter.getRegex(), filter.isUseRegex());
pattern = LinkgrabberFilterRuleWrapper.createPattern(filter.getRegex(), filter.isUseRegex());
}