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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.pipeline.bucketmetrics;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.search.aggregations.metrics.ParsedSingleValueNumericMetricsAggregation;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
public class ParsedBucketMetricValue extends ParsedSingleValueNumericMetricsAggregation implements BucketMetricValue {
private List<String> keys = Collections.emptyList();
@Override
public String[] keys() {
return this.keys.toArray(new String[keys.size()]);
}
@Override
public String getType() {
return InternalBucketMetricValue.NAME;
}
@Override
protected XContentBuilder doXContentBody(XContentBuilder builder, Params params) throws IOException {
boolean hasValue = !Double.isInfinite(value);
builder.field(CommonFields.VALUE.getPreferredName(), hasValue ? value : null);
if (hasValue && valueAsString != null) {
builder.field(CommonFields.VALUE_AS_STRING.getPreferredName(), valueAsString);
}
builder.startArray(InternalBucketMetricValue.KEYS_FIELD.getPreferredName());
for (String key : keys) {
builder.value(key);
}
builder.endArray();
return builder;
}
private static final ObjectParser<ParsedBucketMetricValue, Void> PARSER = new ObjectParser<>(
ParsedBucketMetricValue.class.getSimpleName(), true, ParsedBucketMetricValue::new);
static {
declareSingleValueFields(PARSER, Double.NEGATIVE_INFINITY);
PARSER.declareStringArray((agg, value) -> agg.keys = value, InternalBucketMetricValue.KEYS_FIELD);
}
public static ParsedBucketMetricValue fromXContent(XContentParser parser, final String name) {
ParsedBucketMetricValue bucketMetricValue = PARSER.apply(parser, null);
bucketMetricValue.setName(name);
return bucketMetricValue;
}
}
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