@Override
public void createWeight(QueryContext context, IndexSearcher searcher) throws IOException {
TFIDFSimilarity sim = asTFIDF(searcher.getSimilarity(), field);
if (sim == null) {
throw new UnsupportedOperationException(
"requires a TFIDFSimilarity (such as DefaultSimilarity)");
}
int docfreq = searcher.getIndexReader().docFreq(new Term(indexedField, indexedBytes));
float idf = sim.idf(docfreq, searcher.getIndexReader().maxDoc());
FuncValues result = new ConstDoubleDocValues(idf, this);
context.put(this, result);
}
/**
* factory method for invoking json facet framework as whole. Note: this is currently only used
* from SimpleFacets, not from JSON Facet API itself.
*/
public static FacetProcessor<?> createProcessor(
SolrQueryRequest req, Map<String, Object> params, DocSet docs) {
FacetParser parser = new FacetTopParser(req);
FacetRequest facetRequest = null;
try {
facetRequest = parser.parse(params);
} catch (SyntaxError syntaxError) {
throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, syntaxError);
}
FacetContext fcontext = new FacetContext();
fcontext.base = docs;
fcontext.req = req;
fcontext.searcher = req.getSearcher();
fcontext.qcontext = QueryContext.newContext(fcontext.searcher);
return facetRequest.createFacetProcessor(fcontext);
}
@Override
public FuncValues getValues(QueryContext context, AtomicReaderContext readerContext)
throws IOException {
return (FuncValues) context.get(this);
}