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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.mapper.core.CompletionFieldMapper;
import org.elasticsearch.index.mapper.core.CompletionFieldMapper2x;
import org.elasticsearch.index.query.QueryShardContext;
import org.elasticsearch.search.suggest.SuggestionSearchContext;
import org.elasticsearch.search.suggest.completion.context.ContextMapping;
import org.elasticsearch.search.suggest.completion.context.ContextMappings;
import org.elasticsearch.search.suggest.completion2x.context.ContextMapping.ContextQuery;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
*
*/
public class CompletionSuggestionContext extends SuggestionSearchContext.SuggestionContext {
protected CompletionSuggestionContext(QueryShardContext shardContext) {
super(CompletionSuggester.INSTANCE, shardContext);
}
private CompletionFieldMapper.CompletionFieldType fieldType;
private FuzzyOptions fuzzyOptions;
private RegexOptions regexOptions;
private Map<String, List<ContextMapping.InternalQueryContext>> queryContexts = Collections.emptyMap();
private CompletionFieldMapper2x.CompletionFieldType fieldType2x;
private List<ContextQuery> contextQueries;
CompletionFieldMapper.CompletionFieldType getFieldType() {
return this.fieldType;
}
CompletionFieldMapper2x.CompletionFieldType getFieldType2x() {
return this.fieldType2x;
}
void setFieldType(CompletionFieldMapper.CompletionFieldType fieldType) {
this.fieldType = fieldType;
}
void setRegexOptions(RegexOptions regexOptions) {
this.regexOptions = regexOptions;
}
void setFuzzyOptions(FuzzyOptions fuzzyOptions) {
this.fuzzyOptions = fuzzyOptions;
}
void setQueryContexts(Map<String, List<ContextMapping.InternalQueryContext>> queryContexts) {
this.queryContexts = queryContexts;
}
public FuzzyOptions getFuzzyOptions() {
return fuzzyOptions;
}
public RegexOptions getRegexOptions() {
return regexOptions;
}
public Map<String, List<ContextMapping.InternalQueryContext>> getQueryContexts() {
return queryContexts;
}
CompletionQuery toQuery() {
CompletionFieldMapper.CompletionFieldType fieldType = getFieldType();
final CompletionQuery query;
if (getPrefix() != null) {
if (fuzzyOptions != null) {
query = fieldType.fuzzyQuery(getPrefix().utf8ToString(),
Fuzziness.fromEdits(fuzzyOptions.getEditDistance()),
fuzzyOptions.getFuzzyPrefixLength(), fuzzyOptions.getFuzzyMinLength(),
fuzzyOptions.getMaxDeterminizedStates(), fuzzyOptions.isTranspositions(),
fuzzyOptions.isUnicodeAware());
} else {
query = fieldType.prefixQuery(getPrefix());
}
} else if (getRegex() != null) {
if (fuzzyOptions != null) {
throw new IllegalArgumentException("can not use 'fuzzy' options with 'regex");
}
if (regexOptions == null) {
regexOptions = RegexOptions.builder().build();
}
query = fieldType.regexpQuery(getRegex(), regexOptions.getFlagsValue(),
regexOptions.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;
}
public void setFieldType2x(CompletionFieldMapper2x.CompletionFieldType type) {
this.fieldType2x = type;
}
public void setContextQueries(List<ContextQuery> contextQueries) {
this.contextQueries = contextQueries;
}
public List<ContextQuery> getContextQueries() {
return contextQueries;
}
}
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