org.apache.lucene.facet.sortedset.SortedSetDocValuesFacetCounts Java Examples

The following examples show how to use org.apache.lucene.facet.sortedset.SortedSetDocValuesFacetCounts. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: SimpleSortedSetFacetsExample.java    From lucene-solr with Apache License 2.0 6 votes vote down vote up 
/** User runs a query and counts facets. */
private List<FacetResult> search() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  SortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(indexReader);

  // Aggregatses the facet counts
  FacetsCollector fc = new FacetsCollector();

  // MatchAllDocsQuery is for "browsing" (counts facets
  // for all non-deleted docs in the index); normally
  // you'd use a "normal" query:
  FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

  // Retrieve results
  Facets facets = new SortedSetDocValuesFacetCounts(state, fc);

  List<FacetResult> results = new ArrayList<>();
  results.add(facets.getTopChildren(10, "Author"));
  results.add(facets.getTopChildren(10, "Publish Year"));
  indexReader.close();
  
  return results;
}
Example #2
Source File: SimpleSortedSetFacetsExample.java    From lucene-solr with Apache License 2.0 6 votes vote down vote up 
/** User drills down on 'Publish Year/2010'. */
private FacetResult drillDown() throws IOException {
  DirectoryReader indexReader = DirectoryReader.open(indexDir);
  IndexSearcher searcher = new IndexSearcher(indexReader);
  SortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(indexReader);

  // Now user drills down on Publish Year/2010:
  DrillDownQuery q = new DrillDownQuery(config);
  q.add("Publish Year", "2010");
  FacetsCollector fc = new FacetsCollector();
  FacetsCollector.search(searcher, q, 10, fc);

  // Retrieve results
  Facets facets = new SortedSetDocValuesFacetCounts(state, fc);
  FacetResult result = facets.getTopChildren(10, "Author");
  indexReader.close();
  
  return result;
}
Example #3
Source File: FacetStorageTest.java    From lumongo with Apache License 2.0 6 votes vote down vote up 
/** User drills down on 'Publish Year/2010'. */
private FacetResult drillDown() throws IOException {
	DirectoryReader indexReader = DirectoryReader.open(directory);
	IndexSearcher searcher = new IndexSearcher(indexReader);
	SortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(indexReader);
	
	// Now user drills down on Publish Year/2010:
	DrillDownQuery q = new DrillDownQuery(config);
	q.add("Publish Year", "2010");
	FacetsCollector fc = new FacetsCollector();
	FacetsCollector.search(searcher, q, 10, fc);
	
	// Retrieve results
	Facets facets = new SortedSetDocValuesFacetCounts(state, fc);
	FacetResult result = facets.getTopChildren(10, "Author");
	indexReader.close();
	
	return result;
}
Example #4
Source File: FacetStorageTest.java    From lumongo with Apache License 2.0 5 votes vote down vote up 
/** User runs a query and counts facets. */
private List<FacetResult> search() throws IOException {
	DirectoryReader indexReader = DirectoryReader.open(directory);
	IndexSearcher searcher = new IndexSearcher(indexReader);
	SortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(indexReader);
	
	// Aggregates the facet counts
	FacetsCollector fc = new FacetsCollector();
	
	// MatchAllDocsQuery is for "browsing" (counts facets
	// for all non-deleted docs in the index); normally
	// you'd use a "normal" query:
	//FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);

	TotalHitCountCollector collector = new TotalHitCountCollector();
	searcher.search(new MatchAllDocsQuery(), MultiCollector.wrap(collector, fc));
	
	// Retrieve results
	Facets facets = new SortedSetDocValuesFacetCounts(state, fc);
	
	List<FacetResult> results = new ArrayList<>();
	results.add(facets.getTopChildren(10, "Author"));
	results.add(facets.getTopChildren(10, "Publish Year"));
	indexReader.close();
	
	return results;
}