@Override
public List<AdDefinition> search(AdRequest request) throws IOException {
IndexSearcher searcher = nrt_manager.acquire();
List<AdDefinition> result = new ArrayList<AdDefinition>();
try {
// Collector für die Banner
AdCollector collector = new AdCollector(searcher.getIndexReader().numDocs());
// MainQuery
BooleanQuery mainQuery = new BooleanQuery();
// Query für den/die BannerTypen
BooleanQuery typeQuery = new BooleanQuery();
for (AdType type : request.types()) {
TermQuery tq = new TermQuery(new Term(AdDBConstants.ADDB_AD_TYPE, type.getType()));
typeQuery.add(tq, Occur.SHOULD);
}
mainQuery.add(typeQuery, Occur.MUST);
// Query für den/die BannerFormate
BooleanQuery formatQuery = new BooleanQuery();
for (AdFormat format : request.formats()) {
TermQuery tq =
new TermQuery(new Term(AdDBConstants.ADDB_AD_FORMAT, format.getCompoundName()));
formatQuery.add(tq, Occur.SHOULD);
}
mainQuery.add(formatQuery, Occur.MUST);
// Query für die Bedingungen unter denen ein Banner angezeigt werden soll
Query cq = LuceneQueryHelper.getInstance().getConditionalQuery(request, this.addb);
if (cq != null) {
mainQuery.add(cq, Occur.MUST);
}
/*
* Es sollen nur Produkte geliefert werden
*/
if (request.products()) {
// search online for products
mainQuery.add(
new TermQuery(
new Term(AdDBConstants.ADDB_AD_PRODUCT, AdDBConstants.ADDB_AD_PRODUCT_TRUE)),
Occur.MUST);
// if possible add the product name, so online ads for that product will be found
if (!Strings.isNullOrEmpty(request.product())) {
mainQuery.add(
new TermQuery(new Term(AdDBConstants.ADDB_AD_PRODUCT_NAME, request.product())),
Occur.MUST);
}
} else {
mainQuery.add(
new TermQuery(
new Term(AdDBConstants.ADDB_AD_PRODUCT, AdDBConstants.ADDB_AD_PRODUCT_FALSE)),
Occur.MUST);
}
logger.debug(mainQuery.toString());
System.out.println(mainQuery.toString());
searcher.search(mainQuery, collector);
BitSet hits = collector.getHits();
// Ergebnis
for (int i = hits.nextSetBit(0); i != -1; i = hits.nextSetBit(i + 1)) {
Document doc = searcher.doc(i);
result.add(addb.getBanner(doc.get(AdDBConstants.ADDB_AD_ID)));
}
} finally {
nrt_manager.release(searcher);
}
return result;
}
