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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.bucket;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.rest.action.search.RestSearchAction;
import org.elasticsearch.search.aggregations.Aggregation;
import org.elasticsearch.search.aggregations.InternalAggregation;
import org.elasticsearch.search.aggregations.InternalAggregations;
import org.elasticsearch.search.aggregations.ParsedAggregation;
import org.elasticsearch.search.aggregations.metrics.max.InternalMax;
import org.elasticsearch.search.aggregations.metrics.min.InternalMin;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import org.elasticsearch.test.InternalAggregationTestCase;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Supplier;
import static java.util.Collections.emptyList;
import static java.util.Collections.emptyMap;
import static java.util.Collections.singletonMap;
import static org.elasticsearch.common.xcontent.XContentHelper.toXContent;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertToXContentEquivalent;
public abstract class InternalSingleBucketAggregationTestCase<T extends InternalSingleBucketAggregation>
extends InternalAggregationTestCase<T> {
private boolean hasInternalMax;
private boolean hasInternalMin;
public Supplier<InternalAggregations> subAggregationsSupplier;
@Override
public void setUp() throws Exception {
super.setUp();
hasInternalMax = randomBoolean();
hasInternalMin = randomBoolean();
subAggregationsSupplier = () -> {
List<InternalAggregation> aggs = new ArrayList<>();
if (hasInternalMax) {
aggs.add(new InternalMax("max", randomDouble(), randomNumericDocValueFormat(), emptyList(), emptyMap()));
}
if (hasInternalMin) {
aggs.add(new InternalMin("min", randomDouble(), randomNumericDocValueFormat(), emptyList(), emptyMap()));
}
return new InternalAggregations(aggs);
};
}
protected abstract T createTestInstance(String name, long docCount, InternalAggregations aggregations,
List<PipelineAggregator> pipelineAggregators, Map<String, Object> metaData);
protected abstract void extraAssertReduced(T reduced, List<T> inputs);
@Override
protected final T createTestInstance(String name, List<PipelineAggregator> pipelineAggregators, Map<String, Object> metaData) {
// we shouldn't use the full long range here since we sum doc count on reduce, and don't want to overflow the long range there
long docCount = between(0, Integer.MAX_VALUE);
return createTestInstance(name, docCount, subAggregationsSupplier.get(), pipelineAggregators, metaData);
}
@Override
protected final void assertReduced(T reduced, List<T> inputs) {
assertEquals(inputs.stream().mapToLong(InternalSingleBucketAggregation::getDocCount).sum(), reduced.getDocCount());
if (hasInternalMax) {
double expected = inputs.stream().mapToDouble(i -> {
InternalMax max = i.getAggregations().get("max");
return max.getValue();
}).max().getAsDouble();
InternalMax reducedMax = reduced.getAggregations().get("max");
assertEquals(expected, reducedMax.getValue(), 0);
}
if (hasInternalMin) {
double expected = inputs.stream().mapToDouble(i -> {
InternalMin min = i.getAggregations().get("min");
return min.getValue();
}).min().getAsDouble();
InternalMin reducedMin = reduced.getAggregations().get("min");
assertEquals(expected, reducedMin.getValue(), 0);
}
extraAssertReduced(reduced, inputs);
}
@Override
protected void assertFromXContent(T aggregation, ParsedAggregation parsedAggregation) throws IOException {
assertTrue(parsedAggregation instanceof ParsedSingleBucketAggregation);
ParsedSingleBucketAggregation parsed = (ParsedSingleBucketAggregation) parsedAggregation;
assertEquals(aggregation.getDocCount(), parsed.getDocCount());
InternalAggregations aggregations = aggregation.getAggregations();
Map<String, Aggregation> expectedAggregations = new HashMap<>();
int expectedNumberOfAggregations = 0;
for (Aggregation expectedAggregation : aggregations) {
// since we shuffle xContent, we cannot rely on the order of the original inner aggregations for comparison
assertTrue(expectedAggregation instanceof InternalAggregation);
expectedAggregations.put(expectedAggregation.getName(), expectedAggregation);
expectedNumberOfAggregations++;
}
int parsedNumberOfAggregations = 0;
for (Aggregation parsedAgg : parsed.getAggregations()) {
assertTrue(parsedAgg instanceof ParsedAggregation);
assertTrue(expectedAggregations.keySet().contains(parsedAgg.getName()));
Aggregation expectedInternalAggregation = expectedAggregations.get(parsedAgg.getName());
final XContentType xContentType = randomFrom(XContentType.values());
final ToXContent.Params params = new ToXContent.MapParams(singletonMap(RestSearchAction.TYPED_KEYS_PARAM, "true"));
BytesReference expectedBytes = toXContent(expectedInternalAggregation, xContentType, params, false);
BytesReference actualBytes = toXContent(parsedAgg, xContentType, params, false);
assertToXContentEquivalent(expectedBytes, actualBytes, xContentType);
parsedNumberOfAggregations++;
}
assertEquals(expectedNumberOfAggregations, parsedNumberOfAggregations);
Class<? extends ParsedSingleBucketAggregation> parsedClass = implementationClass();
assertTrue(parsedClass != null && parsedClass.isInstance(parsedAggregation));
}
protected abstract Class<? extends ParsedSingleBucketAggregation> implementationClass();
}
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