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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.suggest.completion;
import org.apache.lucene.search.suggest.document.CompletionQuery;
import org.elasticsearch.common.unit.Fuzziness;
import org.elasticsearch.index.fielddata.IndexFieldDataService;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.index.mapper.core.CompletionFieldMapper;
import org.elasticsearch.search.suggest.Suggester;
import org.elasticsearch.search.suggest.SuggestionSearchContext;
import org.elasticsearch.search.suggest.completion.context.ContextMapping;
import org.elasticsearch.search.suggest.completion.context.ContextMappings;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
*
*/
public class CompletionSuggestionContext extends SuggestionSearchContext.SuggestionContext {
private CompletionFieldMapper.CompletionFieldType fieldType;
private CompletionSuggestionBuilder.FuzzyOptionsBuilder fuzzyOptionsBuilder;
private CompletionSuggestionBuilder.RegexOptionsBuilder regexOptionsBuilder;
private Map<String, List<ContextMapping.QueryContext>> queryContexts;
private MapperService mapperService;
private IndexFieldDataService fieldData;
private Set<String> payloadFields;
CompletionSuggestionContext(Suggester suggester) {
super(suggester);
}
CompletionFieldMapper.CompletionFieldType getFieldType() {
return this.fieldType;
}
void setFieldType(CompletionFieldMapper.CompletionFieldType fieldType) {
this.fieldType = fieldType;
}
void setRegexOptionsBuilder(CompletionSuggestionBuilder.RegexOptionsBuilder regexOptionsBuilder) {
this.regexOptionsBuilder = regexOptionsBuilder;
}
void setFuzzyOptionsBuilder(CompletionSuggestionBuilder.FuzzyOptionsBuilder fuzzyOptionsBuilder) {
this.fuzzyOptionsBuilder = fuzzyOptionsBuilder;
}
void setQueryContexts(Map<String, List<ContextMapping.QueryContext>> queryContexts) {
this.queryContexts = queryContexts;
}
void setMapperService(MapperService mapperService) {
this.mapperService = mapperService;
}
MapperService getMapperService() {
return mapperService;
}
void setFieldData(IndexFieldDataService fieldData) {
this.fieldData = fieldData;
}
IndexFieldDataService getFieldData() {
return fieldData;
}
void setPayloadFields(Set<String> fields) {
this.payloadFields = fields;
}
Set<String> getPayloadFields() {
return payloadFields;
}
CompletionQuery toQuery() {
CompletionFieldMapper.CompletionFieldType fieldType = getFieldType();
final CompletionQuery query;
if (getPrefix() != null) {
if (fuzzyOptionsBuilder != null) {
query = fieldType.fuzzyQuery(getPrefix().utf8ToString(),
Fuzziness.fromEdits(fuzzyOptionsBuilder.getEditDistance()),
fuzzyOptionsBuilder.getFuzzyPrefixLength(), fuzzyOptionsBuilder.getFuzzyMinLength(),
fuzzyOptionsBuilder.getMaxDeterminizedStates(), fuzzyOptionsBuilder.isTranspositions(),
fuzzyOptionsBuilder.isUnicodeAware());
} else {
query = fieldType.prefixQuery(getPrefix());
}
} else if (getRegex() != null) {
if (fuzzyOptionsBuilder != null) {
throw new IllegalArgumentException("can not use 'fuzzy' options with 'regex");
}
if (regexOptionsBuilder == null) {
regexOptionsBuilder = new CompletionSuggestionBuilder.RegexOptionsBuilder();
}
query = fieldType.regexpQuery(getRegex(), regexOptionsBuilder.getFlagsValue(),
regexOptionsBuilder.getMaxDeterminizedStates());
} else {
throw new IllegalArgumentException("'prefix' or 'regex' must be defined");
}
if (fieldType.hasContextMappings()) {
ContextMappings contextMappings = fieldType.getContextMappings();
return contextMappings.toContextQuery(query, queryContexts);
}
return query;
}
}
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