public DelegatingCollector getFilterCollector(IndexSearcher indexSearcher) {
try {
SolrIndexSearcher searcher = (SolrIndexSearcher) indexSearcher;
SortedDocValues docValues = null;
FunctionQuery funcQuery = null;
docValues = DocValues.getSorted(searcher.getLeafReader(), this.field);
FieldType fieldType = null;
if (this.max != null) {
if (this.max.indexOf("(") == -1) {
fieldType = searcher.getSchema().getField(this.max).getType();
} else {
LocalSolrQueryRequest request = null;
try {
SolrParams params = new ModifiableSolrParams();
request = new LocalSolrQueryRequest(searcher.getCore(), params);
FunctionQParser functionQParser = new FunctionQParser(this.max, null, null, request);
funcQuery = (FunctionQuery) functionQParser.parse();
} catch (Exception e) {
throw new IOException(e);
} finally {
request.close();
}
}
}
if (this.min != null) {
if (this.min.indexOf("(") == -1) {
fieldType = searcher.getSchema().getField(this.min).getType();
} else {
LocalSolrQueryRequest request = null;
try {
SolrParams params = new ModifiableSolrParams();
request = new LocalSolrQueryRequest(searcher.getCore(), params);
FunctionQParser functionQParser = new FunctionQParser(this.min, null, null, request);
funcQuery = (FunctionQuery) functionQParser.parse();
} catch (Exception e) {
throw new IOException(e);
} finally {
request.close();
}
}
}
int maxDoc = searcher.maxDoc();
int leafCount = searcher.getTopReaderContext().leaves().size();
// Deal with boosted docs.
// We have to deal with it here rather then the constructor because
// because the QueryElevationComponent runs after the Queries are constructed.
IntIntOpenHashMap boostDocs = null;
Map context = null;
SolrRequestInfo info = SolrRequestInfo.getRequestInfo();
if (info != null) {
context = info.getReq().getContext();
}
if (this.boosted == null && context != null) {
this.boosted =
(Map<BytesRef, Integer>) context.get(QueryElevationComponent.BOOSTED_PRIORITY);
}
boostDocs = getBoostDocs(searcher, this.boosted, context);
if (this.min != null || this.max != null) {
return new CollapsingFieldValueCollector(
maxDoc,
leafCount,
docValues,
this.nullPolicy,
max != null ? this.max : this.min,
max != null,
this.needsScores,
fieldType,
boostDocs,
funcQuery,
searcher);
} else {
return new CollapsingScoreCollector(
maxDoc, leafCount, docValues, this.nullPolicy, boostDocs);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
