org.elasticsearch.search.aggregations.bucket.histogram.HistogramBuilder Maven / Gradle / Ivy
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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.histogram;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.search.aggregations.ValuesSourceAggregationBuilder;
import org.elasticsearch.search.builder.SearchSourceBuilderException;
import java.io.IOException;
/**
*
*/
public class HistogramBuilder extends ValuesSourceAggregationBuilder {
private Long interval;
private HistogramBase.Order order;
private Long minDocCount;
public HistogramBuilder(String name) {
super(name, InternalHistogram.TYPE.name());
}
public HistogramBuilder interval(long interval) {
this.interval = interval;
return this;
}
public HistogramBuilder order(Histogram.Order order) {
this.order = order;
return this;
}
public HistogramBuilder minDocCount(long minDocCount) {
this.minDocCount = minDocCount;
return this;
}
@Override
protected XContentBuilder doInternalXContent(XContentBuilder builder, Params params) throws IOException {
if (interval == null) {
throw new SearchSourceBuilderException("[interval] must be defined for histogram aggregation [" + name + "]");
}
builder.field("interval", interval);
if (order != null) {
builder.field("order");
order.toXContent(builder, params);
}
if (minDocCount != null) {
builder.field("min_doc_count", minDocCount);
}
return builder;
}
}