org.elasticsearch.search.facet.terms.index.IndexNameFacetExecutor Maven / Gradle / Ivy
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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
package org.elasticsearch.search.facet.terms.index;
import com.google.common.collect.Sets;
import org.apache.lucene.index.AtomicReaderContext;
import org.elasticsearch.search.facet.FacetExecutor;
import org.elasticsearch.search.facet.InternalFacet;
import org.elasticsearch.search.facet.terms.TermsFacet;
import org.elasticsearch.search.facet.terms.strings.InternalStringTermsFacet;
import java.io.IOException;
/**
*
*/
public class IndexNameFacetExecutor extends FacetExecutor {
private final String indexName;
private final InternalStringTermsFacet.ComparatorType comparatorType;
private final int size;
private int count = 0;
public IndexNameFacetExecutor(String indexName, TermsFacet.ComparatorType comparatorType, int size) {
this.indexName = indexName;
this.comparatorType = comparatorType;
this.size = size;
}
@Override
public Collector collector() {
return new Collector();
}
@Override
public InternalFacet buildFacet(String facetName) {
return new InternalStringTermsFacet(facetName, comparatorType, size, Sets.newHashSet(new InternalStringTermsFacet.TermEntry(indexName, count)), 0, count);
}
class Collector extends FacetExecutor.Collector {
private int count;
@Override
public void setNextReader(AtomicReaderContext context) throws IOException {
}
@Override
public void collect(int doc) throws IOException {
count++;
}
@Override
public void postCollection() {
IndexNameFacetExecutor.this.count = count;
}
}
}