Java FiltersAggregationBuilder類代碼示例

import org.elasticsearch.search.aggregations.bucket.filters.FiltersAggregationBuilder; //導入依賴的package包/類
public void testEmpty() throws Exception {
    Directory directory = newDirectory();
    RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
    indexWriter.close();
    IndexReader indexReader = DirectoryReader.open(directory);
    IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
    int numFilters = randomIntBetween(1, 10);
    QueryBuilder[] filters = new QueryBuilder[numFilters];
    for (int i = 0; i < filters.length; i++) {
        filters[i] = QueryBuilders.termQuery("field", randomAsciiOfLength(5));
    }
    FiltersAggregationBuilder builder = new FiltersAggregationBuilder("test", filters);
    builder.otherBucketKey("other");
    InternalFilters response = search(indexSearcher, new MatchAllDocsQuery(), builder, fieldType);
    assertEquals(response.getBuckets().size(), numFilters);
    for (InternalFilters.InternalBucket filter : response.getBuckets()) {
        assertEquals(filter.getDocCount(), 0);
    }
    indexReader.close();
    directory.close();
}
 

import org.elasticsearch.search.aggregations.bucket.filters.FiltersAggregationBuilder; //導入依賴的package包/類
public void testKeyedFilter() throws Exception {
    Directory directory = newDirectory();
    RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
    Document document = new Document();
    document.add(new Field("field", "foo", fieldType));
    indexWriter.addDocument(document);
    document.clear();
    document.add(new Field("field", "else", fieldType));
    indexWriter.addDocument(document);
    // make sure we have more than one segment to test the merge
    indexWriter.commit();
    document.add(new Field("field", "foo", fieldType));
    indexWriter.addDocument(document);
    document.clear();
    document.add(new Field("field", "bar", fieldType));
    indexWriter.addDocument(document);
    document.clear();
    document.add(new Field("field", "foobar", fieldType));
    indexWriter.addDocument(document);
    indexWriter.commit();
    document.clear();
    document.add(new Field("field", "something", fieldType));
    indexWriter.addDocument(document);
    indexWriter.commit();
    document.clear();
    document.add(new Field("field", "foobar", fieldType));
    indexWriter.addDocument(document);
    indexWriter.close();

    IndexReader indexReader = DirectoryReader.open(directory);
    IndexSearcher indexSearcher = newSearcher(indexReader, true, true);

    FiltersAggregator.KeyedFilter[] keys = new FiltersAggregator.KeyedFilter[6];
    keys[0] = new FiltersAggregator.KeyedFilter("foobar", QueryBuilders.termQuery("field", "foobar"));
    keys[1] = new FiltersAggregator.KeyedFilter("bar", QueryBuilders.termQuery("field", "bar"));
    keys[2] = new FiltersAggregator.KeyedFilter("foo", QueryBuilders.termQuery("field", "foo"));
    keys[3] = new FiltersAggregator.KeyedFilter("foo2", QueryBuilders.termQuery("field", "foo"));
    keys[4] = new FiltersAggregator.KeyedFilter("same", QueryBuilders.termQuery("field", "foo"));
    // filter name already present so it should be merge with the previous one ?
    keys[5] = new FiltersAggregator.KeyedFilter("same", QueryBuilders.termQuery("field", "bar"));
    FiltersAggregationBuilder builder = new FiltersAggregationBuilder("test", keys);
    builder.otherBucket(true);
    builder.otherBucketKey("other");
    for (boolean doReduce : new boolean[] {true, false}) {
        final InternalFilters filters;
        if (doReduce) {
            filters = searchAndReduce(indexSearcher, new MatchAllDocsQuery(), builder, fieldType);
        } else {
            filters = search(indexSearcher, new MatchAllDocsQuery(), builder, fieldType);
        }
        assertEquals(filters.getBuckets().size(), 7);
        assertEquals(filters.getBucketByKey("foobar").getDocCount(), 2);
        assertEquals(filters.getBucketByKey("foo").getDocCount(), 2);
        assertEquals(filters.getBucketByKey("foo2").getDocCount(), 2);
        assertEquals(filters.getBucketByKey("bar").getDocCount(), 1);
        assertEquals(filters.getBucketByKey("same").getDocCount(), 1);
        assertEquals(filters.getBucketByKey("other").getDocCount(), 2);
    }

    indexReader.close();
    directory.close();
}
 

import org.elasticsearch.search.aggregations.bucket.filters.FiltersAggregationBuilder; //導入依賴的package包/類
/**
 * Create a new {@link Filters} aggregation with the given name.
 */
public static FiltersAggregationBuilder filters(String name) {
    return new FiltersAggregationBuilder(name);
}
 

import org.elasticsearch.search.aggregations.bucket.filters.FiltersAggregationBuilder; //導入依賴的package包/類
public SimpleAggregationBuilder<SimpleSearchQueryBuilder> aggFilters(String name) {
	FiltersAggregationBuilder filtersAgg = AggregationBuilders.filters(name);
	return agg(filtersAgg);
}
 

import org.elasticsearch.search.aggregations.bucket.filters.FiltersAggregationBuilder; //導入依賴的package包/類
private FiltersAggregationBuilder asFiltersAggregationBuilder(){
	return (FiltersAggregationBuilder)this.aggsBuilder;
}