| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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.apache.solr.spelling; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.HashSet; |
| |
| import org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.core.WhitespaceAnalyzer; |
| import org.apache.lucene.analysis.tokenattributes.CharTermAttribute; |
| import org.apache.lucene.analysis.tokenattributes.FlagsAttribute; |
| import org.apache.lucene.analysis.tokenattributes.OffsetAttribute; |
| import org.apache.lucene.analysis.tokenattributes.PayloadAttribute; |
| import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute; |
| import org.apache.lucene.analysis.tokenattributes.TypeAttribute; |
| |
| |
| /** |
| * |
| * @since solr 1.3 |
| **/ |
| class SimpleQueryConverter extends SpellingQueryConverter { |
| |
| @Override |
| public Collection<Token> convert(String origQuery) { |
| Collection<Token> result = new HashSet<>(); |
| |
| try (WhitespaceAnalyzer analyzer = new WhitespaceAnalyzer(); TokenStream ts = analyzer.tokenStream("", origQuery)) { |
| // TODO: support custom attributes |
| CharTermAttribute termAtt = ts.addAttribute(CharTermAttribute.class); |
| OffsetAttribute offsetAtt = ts.addAttribute(OffsetAttribute.class); |
| TypeAttribute typeAtt = ts.addAttribute(TypeAttribute.class); |
| FlagsAttribute flagsAtt = ts.addAttribute(FlagsAttribute.class); |
| PayloadAttribute payloadAtt = ts.addAttribute(PayloadAttribute.class); |
| PositionIncrementAttribute posIncAtt = ts.addAttribute(PositionIncrementAttribute.class); |
| |
| ts.reset(); |
| |
| while (ts.incrementToken()) { |
| Token tok = new Token(); |
| tok.copyBuffer(termAtt.buffer(), 0, termAtt.length()); |
| tok.setOffset(offsetAtt.startOffset(), offsetAtt.endOffset()); |
| tok.setFlags(flagsAtt.getFlags()); |
| tok.setPayload(payloadAtt.getPayload()); |
| tok.setPositionIncrement(posIncAtt.getPositionIncrement()); |
| tok.setType(typeAtt.type()); |
| result.add(tok); |
| } |
| ts.end(); |
| return result; |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |