package org.apache.lucene.facet.search;
import org.apache.lucene.facet.complements.ComplementCountingAggregator;
import org.apache.lucene.facet.taxonomy.CategoryPath;
import org.apache.lucene.facet.taxonomy.TaxonomyReader;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Facet request for counting facets.
*
* @lucene.experimental
*/
public class CountFacetRequest extends FacetRequest {
public CountFacetRequest(CategoryPath path, int num) {
super(path, num);
}
@Override
public Aggregator createAggregator(boolean useComplements, FacetArrays arrays, TaxonomyReader taxonomy) {
// we rely on that, if needed, result is cleared by arrays!
int[] a = arrays.getIntArray();
if (useComplements) {
return new ComplementCountingAggregator(a);
}
return new CountingAggregator(a);
}
@Override
public double getValueOf(FacetArrays arrays, int ordinal) {
return arrays.getIntArray()[ordinal];
}
@Override
public FacetArraysSource getFacetArraysSource() {
return FacetArraysSource.INT;
}
}