org.elasticsearch.search.suggest.term.TermSuggestParser Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon 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.suggest.term;
import java.io.IOException;
import org.elasticsearch.ElasticSearchIllegalArgumentException;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.search.suggest.DirectSpellcheckerSettings;
import org.elasticsearch.search.suggest.SuggestContextParser;
import org.elasticsearch.search.suggest.SuggestUtils;
import org.elasticsearch.search.suggest.SuggestionSearchContext;
public final class TermSuggestParser implements SuggestContextParser {
private final TermSuggester suggester = new TermSuggester();
public SuggestionSearchContext.SuggestionContext parse(XContentParser parser, MapperService mapperService) throws IOException {
XContentParser.Token token;
String fieldName = null;
TermSuggestionContext suggestion = new TermSuggestionContext(suggester);
DirectSpellcheckerSettings settings = suggestion.getDirectSpellCheckerSettings();
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
fieldName = parser.currentName();
} else if (token.isValue()) {
parseTokenValue(parser, mapperService, fieldName, suggestion, settings);
} else {
throw new ElasticSearchIllegalArgumentException("suggester[term] doesn't support field [" + fieldName + "]");
}
}
return suggestion;
}
private void parseTokenValue(XContentParser parser, MapperService mapperService, String fieldName, TermSuggestionContext suggestion,
DirectSpellcheckerSettings settings) throws IOException {
if (!(SuggestUtils.parseSuggestContext(parser, mapperService, fieldName, suggestion) || SuggestUtils.parseDirectSpellcheckerSettings(
parser, fieldName, settings))) {
throw new ElasticSearchIllegalArgumentException("suggester[term] doesn't support [" + fieldName + "]");
}
}
}