public int count(String query) {
Query q;
try {
q = new QueryParser(Version.LUCENE_30, defaultFieldName, analyzer).parse(query);
final IndexSearcher searcher = new IndexSearcher(index, true);
CountCollector cc = new CountCollector();
searcher.search(q, cc);
return cc.getCount();
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// ScoreDoc[] hits = collector.topDocs().scoreDocs;
return -1;
}
@Override
public int count(String query) {
if (searcher == null) return 0;
Query q;
try {
q = queryParser.parse(query);
CountCollector cc = new CountCollector();
searcher.search(q, cc);
return cc.getCount();
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// ScoreDoc[] hits = collector.topDocs().scoreDocs;
return -1;
}
@Override
public Selection select(
String query, final int offs, final int limit, final Collection<String> aggs) {
final Selection selection = new Selection();
if (searcher == null) {
selection.setObjects(Collections.<AgeObject>emptyList());
return selection;
}
final List<AgeObject> res = new ArrayList<AgeObject>();
Query q;
try {
q = queryParser.parse(query);
CountCollector coll =
new CountCollector() {
int base;
int count = -1;
IndexReader reader;
@Override
int getCount() {
return count + 1;
}
@Override
public void setScorer(Scorer arg0) throws IOException {}
@Override
public void setNextReader(IndexReader arg0, int arg1) throws IOException {
reader = arg0;
base = arg1;
}
@Override
public void collect(int docId) throws IOException {
count++;
// System.out.println("Found doc: "+ind+". Object:
// "+objectList.get(ind).getId()+". Class:
// "+objectList.get(ind).getAgeElClass().getName() );
if (count >= offs && (limit <= 0 || count < (offs + limit)))
res.add(objectList.get(docId + base));
if (aggs != null) {
Document doc = reader.document(docId);
for (String fld : aggs) {
String val = doc.get(fld);
int ival = 0;
try {
ival = Integer.parseInt(val);
} catch (Throwable e) {
}
selection.aggregate(fld, ival);
}
}
}
@Override
public boolean acceptsDocsOutOfOrder() {
return false;
}
};
searcher.search(q, coll);
selection.setObjects(res);
selection.setTotalCount(coll.getCount());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// ScoreDoc[] hits = collector.topDocs().scoreDocs;
return selection;
}
public static long count(IndexSearcher searcher, Query query, Filter filter, float minScore)
throws IOException {
CountCollector countCollector = new CountCollector(minScore);
searcher.search(query, filter, countCollector);
return countCollector.count();
}
