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Rander sum as zero if count is zero for stats aggregation (#26893) (#27193)

This commit is contained in:
kel 2017-11-02 11:02:47 -05:00 committed by Colin Goodheart-Smithe
parent 7791e72626
commit 55b9dfdd52
2 changed files with 57 additions and 2 deletions
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2
core/src/main/java/org/elasticsearch/search/aggregations/metrics/stats/InternalStats.java
View File

@ -192,7 +192,7 @@ public class InternalStats extends InternalNumericMetricsAggregation.MultiValue
builder.nullField(Fields.MIN);
builder.nullField(Fields.MAX);
builder.nullField(Fields.AVG);
builder.nullField(Fields.SUM);
builder.field(Fields.SUM, 0.0d);
}
otherStatsToXContent(builder, params);
return builder;

55
core/src/test/java/org/elasticsearch/search/aggregations/metrics/InternalStatsTests.java
View File

@ -19,6 +19,9 @@
package org.elasticsearch.search.aggregations.metrics;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.json.JsonXContent;
import org.elasticsearch.search.DocValueFormat;
import org.elasticsearch.search.aggregations.ParsedAggregation;
import org.elasticsearch.search.aggregations.metrics.stats.InternalStats;
@ -26,6 +29,8 @@ import org.elasticsearch.search.aggregations.metrics.stats.ParsedStats;
import org.elasticsearch.search.aggregations.pipeline.PipelineAggregator;
import org.elasticsearch.test.InternalAggregationTestCase;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@ -153,5 +158,55 @@ public class InternalStatsTests extends InternalAggregationTestCase<InternalStat
}
return new InternalStats(name, count, sum, min, max, formatter, pipelineAggregators, metaData);
}
public void testDoXContentBody() throws IOException {
// count is greater than zero
double min = randomDoubleBetween(-1000000, 1000000, true);
double max = randomDoubleBetween(-1000000, 1000000, true);
double sum = randomDoubleBetween(-1000000, 1000000, true);
int count = randomIntBetween(1, 10);
DocValueFormat format = randomNumericDocValueFormat();
InternalStats internalStats = createInstance("stats", count, sum, min, max, format, Collections.emptyList(), null);
XContentBuilder builder = JsonXContent.contentBuilder().prettyPrint();
builder.startObject();
internalStats.doXContentBody(builder, ToXContent.EMPTY_PARAMS);
builder.endObject();
String expected = "{\n" +
" \"count\" : " + count + ",\n" +
" \"min\" : " + min + ",\n" +
" \"max\" : " + max + ",\n" +
" \"avg\" : " + internalStats.getAvg() + ",\n" +
" \"sum\" : " + sum;
if (format != DocValueFormat.RAW) {
expected += ",\n"+
" \"min_as_string\" : \"" + format.format(internalStats.getMin()) + "\",\n" +
" \"max_as_string\" : \"" + format.format(internalStats.getMax()) + "\",\n" +
" \"avg_as_string\" : \"" + format.format(internalStats.getAvg()) + "\",\n" +
" \"sum_as_string\" : \"" + format.format(internalStats.getSum()) + "\"";
}
expected += "\n}";
assertEquals(expected, builder.string());
// count is zero
format = randomNumericDocValueFormat();
min = 0.0;
max = 0.0;
sum = 0.0;
count = 0;
internalStats = createInstance("stats", count, sum, min, max, format, Collections.emptyList(), null);
builder = JsonXContent.contentBuilder().prettyPrint();
builder.startObject();
internalStats.doXContentBody(builder, ToXContent.EMPTY_PARAMS);
builder.endObject();
assertEquals("{\n" +
" \"count\" : 0,\n" +
" \"min\" : null,\n" +
" \"max\" : null,\n" +
" \"avg\" : null,\n" +
" \"sum\" : 0.0\n" +
"}", builder.string());
}
}