Example usage for org.apache.lucene.facet MultiFacets MultiFacets

Introduction

In this page you can find the example usage for org.apache.lucene.facet MultiFacets MultiFacets.

Prototype

public MultiFacets(Map<String, Facets> dimToFacets) 

Source Link

Document

Create this, with no default Facets .

Usage

From source file:org.apache.jackrabbit.oak.plugins.index.lucene.util.FacetHelper.java

License:Apache License

public static Facets getFacets(IndexSearcher searcher, Query query, TopDocs docs, QueryIndex.IndexPlan plan,
        boolean secure) throws IOException {
    Facets facets = null;/*from w w  w. j  a va2  s .c om*/
    @SuppressWarnings("unchecked")
    List<String> facetFields = (List<String>) plan.getAttribute(ATTR_FACET_FIELDS);
    if (facetFields != null && facetFields.size() > 0) {
        Map<String, Facets> facetsMap = new HashMap<String, Facets>();

        for (String facetField : facetFields) {
            FacetsCollector facetsCollector = new FacetsCollector();
            try {
                DefaultSortedSetDocValuesReaderState state = new DefaultSortedSetDocValuesReaderState(
                        searcher.getIndexReader(), FieldNames.createFacetFieldName(facetField));
                FacetsCollector.search(searcher, query, 10, facetsCollector);
                facetsMap.put(facetField,
                        secure ? new FilteredSortedSetDocValuesFacetCounts(state, facetsCollector,
                                plan.getFilter(), docs)
                                : new SortedSetDocValuesFacetCounts(state, facetsCollector));

            } catch (IllegalArgumentException iae) {
                LOGGER.warn("facets for {} not yet indexed", facetField);
            }
        }
        if (facetsMap.size() > 0) {
            facets = new MultiFacets(facetsMap);
        }

    }
    return facets;
}

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