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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.aggregations.metrics.sum;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.document.SortedDocValuesField;
import org.apache.lucene.document.SortedNumericDocValuesField;
import org.apache.lucene.document.StringField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.FieldValueQuery;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.CheckedConsumer;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.NumberFieldMapper;
import org.elasticsearch.search.aggregations.AggregatorTestCase;
import java.io.IOException;
import java.util.Arrays;
import java.util.function.Consumer;
import static java.util.Collections.singleton;
public class SumAggregatorTests extends AggregatorTestCase {
private static final String FIELD_NAME = "field";
public void testNoDocs() throws IOException {
testCase(new MatchAllDocsQuery(), iw -> {
// Intentionally not writing any docs
}, count -> assertEquals(0L, count.getValue(), 0d));
}
public void testNoMatchingField() throws IOException {
testCase(new MatchAllDocsQuery(), iw -> {
iw.addDocument(singleton(new NumericDocValuesField("wrong_number", 7)));
iw.addDocument(singleton(new NumericDocValuesField("wrong_number", 1)));
}, count -> assertEquals(0L, count.getValue(), 0d));
}
public void testNumericDocValues() throws IOException {
testCase(new MatchAllDocsQuery(), iw -> {
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(singleton(new NumericDocValuesField(FIELD_NAME, 2)));
}, count -> assertEquals(24L, count.getValue(), 0d));
}
public void testSortedNumericDocValues() throws IOException {
testCase(new FieldValueQuery(FIELD_NAME), iw -> {
iw.addDocument(Arrays.asList(new SortedNumericDocValuesField(FIELD_NAME, 3),
new SortedNumericDocValuesField(FIELD_NAME, 4)));
iw.addDocument(Arrays.asList(new SortedNumericDocValuesField(FIELD_NAME, 3),
new SortedNumericDocValuesField(FIELD_NAME, 4)));
iw.addDocument(singleton(new SortedNumericDocValuesField(FIELD_NAME, 1)));
}, count -> assertEquals(15L, count.getValue(), 0d));
}
public void testQueryFiltering() throws IOException {
testCase(new TermQuery(new Term("match", "yes")), iw -> {
iw.addDocument(Arrays.asList(new StringField("match", "yes", Field.Store.NO), new NumericDocValuesField(FIELD_NAME, 1)));
iw.addDocument(Arrays.asList(new StringField("match", "no", Field.Store.NO), new NumericDocValuesField(FIELD_NAME, 2)));
iw.addDocument(Arrays.asList(new StringField("match", "yes", Field.Store.NO), new NumericDocValuesField(FIELD_NAME, 3)));
iw.addDocument(Arrays.asList(new StringField("match", "no", Field.Store.NO), new NumericDocValuesField(FIELD_NAME, 4)));
iw.addDocument(Arrays.asList(new StringField("match", "yes", Field.Store.NO), new NumericDocValuesField(FIELD_NAME, 5)));
}, count -> assertEquals(9L, count.getValue(), 0d));
}
public void testStringField() throws IOException {
IllegalStateException e = expectThrows(IllegalStateException.class , () -> {
testCase(new MatchAllDocsQuery(), iw -> {
iw.addDocument(singleton(new SortedDocValuesField(FIELD_NAME, new BytesRef("1"))));
}, count -> assertEquals(0L, count.getValue(), 0d));
});
assertEquals("unexpected docvalues type SORTED for field 'field' (expected one of [SORTED_NUMERIC, NUMERIC]). " +
"Re-index with correct docvalues type.", e.getMessage());
}
private void testCase(Query query,
CheckedConsumer<RandomIndexWriter, IOException> indexer,
Consumer<Sum> verify) throws IOException {
try (Directory directory = newDirectory()) {
try (RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory)) {
indexer.accept(indexWriter);
}
try (IndexReader indexReader = DirectoryReader.open(directory)) {
IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
MappedFieldType fieldType = new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
fieldType.setName(FIELD_NAME);
fieldType.setHasDocValues(true);
SumAggregationBuilder aggregationBuilder = new SumAggregationBuilder("_name");
aggregationBuilder.field(FIELD_NAME);
try (SumAggregator aggregator = createAggregator(aggregationBuilder, indexSearcher, fieldType)) {
aggregator.preCollection();
indexSearcher.search(query, aggregator);
aggregator.postCollection();
verify.accept((Sum) aggregator.buildAggregation(0L));
}
}
}
}
}
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