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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;
import org.elasticsearch.common.xcontent.ObjectParser;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.search.aggregations.ParsedAggregation;
import java.io.IOException;
public class ParsedCardinality extends ParsedAggregation implements Cardinality {
private long cardinalityValue;
@Override
public String getValueAsString() {
return Double.toString((double) cardinalityValue);
}
@Override
public double value() {
return getValue();
}
@Override
public long getValue() {
return cardinalityValue;
}
@Override
public String getType() {
return CardinalityAggregationBuilder.NAME;
}
private static final ObjectParser PARSER = new ObjectParser<>(
ParsedCardinality.class.getSimpleName(), true, ParsedCardinality::new);
static {
declareAggregationFields(PARSER);
PARSER.declareLong((agg, value) -> agg.cardinalityValue = value, CommonFields.VALUE);
}
public static ParsedCardinality fromXContent(XContentParser parser, final String name) {
ParsedCardinality cardinality = PARSER.apply(parser, null);
cardinality.setName(name);
return cardinality;
}
@Override
protected XContentBuilder doXContentBody(XContentBuilder builder, Params params)
throws IOException {
builder.field(CommonFields.VALUE.getPreferredName(), cardinalityValue);
return builder;
}
}