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* 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,
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package org.elasticsearch.search.aggregations.metrics.min;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.document.SortedNumericDocValuesField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.store.Directory;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.NumberFieldMapper;
import org.elasticsearch.search.aggregations.AggregatorTestCase;
public class MinAggregatorTests extends AggregatorTestCase {
public void testMinAggregator_numericDv() throws Exception {
Directory directory = newDirectory();
RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
Document document = new Document();
document.add(new NumericDocValuesField("number", 9));
indexWriter.addDocument(document);
document = new Document();
document.add(new NumericDocValuesField("number", 7));
indexWriter.addDocument(document);
document = new Document();
document.add(new NumericDocValuesField("number", 5));
indexWriter.addDocument(document);
document = new Document();
document.add(new NumericDocValuesField("number", 3));
indexWriter.addDocument(document);
document = new Document();
document.add(new NumericDocValuesField("number", 1));
indexWriter.addDocument(document);
document = new Document();
document.add(new NumericDocValuesField("number", -1));
indexWriter.addDocument(document);
indexWriter.close();
IndexReader indexReader = DirectoryReader.open(directory);
IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
MinAggregationBuilder aggregationBuilder = new MinAggregationBuilder("_name").field("number");
MappedFieldType fieldType = new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
fieldType.setName("number");
try (MinAggregator aggregator = createAggregator(aggregationBuilder, indexSearcher, fieldType)) {
aggregator.preCollection();
indexSearcher.search(new MatchAllDocsQuery(), aggregator);
aggregator.postCollection();
InternalMin result = (InternalMin) aggregator.buildAggregation(0L);
assertEquals(-1.0, result.getValue(), 0);
}
indexReader.close();
directory.close();
}
public void testMinAggregator_sortedNumericDv() throws Exception {
Directory directory = newDirectory();
RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
Document document = new Document();
document.add(new SortedNumericDocValuesField("number", 9));
document.add(new SortedNumericDocValuesField("number", 7));
indexWriter.addDocument(document);
document = new Document();
document.add(new SortedNumericDocValuesField("number", 5));
document.add(new SortedNumericDocValuesField("number", 3));
indexWriter.addDocument(document);
document = new Document();
document.add(new SortedNumericDocValuesField("number", 1));
document.add(new SortedNumericDocValuesField("number", -1));
indexWriter.addDocument(document);
indexWriter.close();
IndexReader indexReader = DirectoryReader.open(directory);
IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
MinAggregationBuilder aggregationBuilder = new MinAggregationBuilder("_name").field("number");
MappedFieldType fieldType = new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
fieldType.setName("number");
try (MinAggregator aggregator = createAggregator(aggregationBuilder, indexSearcher, fieldType)) {
aggregator.preCollection();
indexSearcher.search(new MatchAllDocsQuery(), aggregator);
aggregator.postCollection();
InternalMin result = (InternalMin) aggregator.buildAggregation(0L);
assertEquals(-1.0, result.getValue(), 0);
}
indexReader.close();
directory.close();
}
public void testMinAggregator_noValue() throws Exception {
Directory directory = newDirectory();
RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
Document document = new Document();
document.add(new SortedNumericDocValuesField("number1", 7));
indexWriter.addDocument(document);
document = new Document();
document.add(new SortedNumericDocValuesField("number1", 3));
indexWriter.addDocument(document);
document = new Document();
document.add(new SortedNumericDocValuesField("number1", 1));
indexWriter.addDocument(document);
indexWriter.close();
IndexReader indexReader = DirectoryReader.open(directory);
IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
MinAggregationBuilder aggregationBuilder = new MinAggregationBuilder("_name").field("number2");
MappedFieldType fieldType = new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
fieldType.setName("number2");
try (MinAggregator aggregator = createAggregator(aggregationBuilder, indexSearcher, fieldType)) {
aggregator.preCollection();
indexSearcher.search(new MatchAllDocsQuery(), aggregator);
aggregator.postCollection();
InternalMin result = (InternalMin) aggregator.buildAggregation(0L);
assertEquals(Double.POSITIVE_INFINITY, result.getValue(), 0);
}
indexReader.close();
directory.close();
}
public void testMinAggregator_noDocs() throws Exception {
Directory directory = newDirectory();
RandomIndexWriter indexWriter = new RandomIndexWriter(random(), directory);
indexWriter.close();
IndexReader indexReader = DirectoryReader.open(directory);
IndexSearcher indexSearcher = newSearcher(indexReader, true, true);
MinAggregationBuilder aggregationBuilder = new MinAggregationBuilder("_name").field("number");
MappedFieldType fieldType = new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
fieldType.setName("number");
try (MinAggregator aggregator = createAggregator(aggregationBuilder, indexSearcher, fieldType)) {
aggregator.preCollection();
indexSearcher.search(new MatchAllDocsQuery(), aggregator);
aggregator.postCollection();
InternalMin result = (InternalMin) aggregator.buildAggregation(0L);
assertEquals(Double.POSITIVE_INFINITY, result.getValue(), 0);
}
indexReader.close();
directory.close();
}
}