spring-data-elasticsearch ElasticsearchAggregations 源码
spring-data-elasticsearch ElasticsearchAggregations 代码
文件路径：/src/main/java/org/springframework/data/elasticsearch/client/elc/ElasticsearchAggregations.java
/*
* Copyright 2021-2022 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.data.elasticsearch.client.elc;
import co.elastic.clients.elasticsearch._types.aggregations.Aggregate;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.data.elasticsearch.core.AggregationsContainer;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* AggregationsContainer implementation for the Elasticsearch aggregations.
*
* @author Peter-Josef Meisch
* @author Sascha Woo
* @since 4.4
*/
public class ElasticsearchAggregations implements AggregationsContainer<List<ElasticsearchAggregation>> {
private final List<ElasticsearchAggregation> aggregations;
private final Map<String, ElasticsearchAggregation> aggregationsAsMap;
public ElasticsearchAggregations(Map<String, Aggregate> aggregations) {
Assert.notNull(aggregations, "aggregations must not be null");
aggregationsAsMap = new HashMap<>();
aggregations.forEach((name, aggregate) -> aggregationsAsMap //
.put(name, new ElasticsearchAggregation(new Aggregation(name, aggregate))));
this.aggregations = new ArrayList<>(aggregationsAsMap.values());
}
@Override
public List<ElasticsearchAggregation> aggregations() {
return aggregations;
}
/**
* @return the {@link ElasticsearchAggregation}s keyed by aggregation name.
*/
public Map<String, ElasticsearchAggregation> aggregationsAsMap() {
return aggregationsAsMap;
}
/**
* Returns the aggregation that is associated with the specified name.
*
* @param name the name of the aggregation
* @return the aggregation or {@literal null} if not found
*/
@Nullable
public ElasticsearchAggregation get(String name) {
Assert.notNull(name, "name must not be null");
return aggregationsAsMap.get(name);
}
}
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