/*
* 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.index.search.stats;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.search.SearchParseElement;
import org.elasticsearch.search.internal.SearchContext;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
*/
public class StatsGroupsParseElement implements SearchParseElement {
@Override
public void parse(XContentParser parser, SearchContext context) throws Exception {
XContentParser.Token token = parser.currentToken();
if (token.isValue()) {
context.groupStats(Collections.singletonList(parser.text()));
} else if (token == XContentParser.Token.START_ARRAY) {
List<String> groupStats = new ArrayList<>(4);
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
groupStats.add(parser.text());
}
context.groupStats(groupStats);
}
}
}