/**
* @param filter The filter for the bucket that resulted in this context/domain. Can be null if
* this is the root context.
* @param domain The resulting set of documents for this facet.
*/
public FacetContext sub(Query filter, DocSet domain) {
FacetContext ctx = new FacetContext();
ctx.parent = this;
ctx.base = domain;
ctx.filter = filter;
// carry over from parent
ctx.flags = flags;
ctx.qcontext = qcontext;
ctx.req = req;
ctx.searcher = searcher;
return ctx;
}
/**
* 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);
}