| /* |
| * 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.regex.Pattern; |
| |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.BaseTokenStreamTestCase; |
| import org.apache.lucene.analysis.LowerCaseFilter; |
| import org.apache.lucene.analysis.MockAnalyzer; |
| import org.apache.lucene.analysis.MockTokenizer; |
| import org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.Tokenizer; |
| import org.apache.lucene.analysis.core.KeywordTokenizer; |
| import org.apache.lucene.analysis.miscellaneous.TrimFilter; |
| import org.apache.lucene.analysis.pattern.PatternReplaceFilter; |
| |
| public class TestSuggestSpellingConverter extends BaseTokenStreamTestCase { |
| SuggestQueryConverter converter = new SuggestQueryConverter(); |
| |
| public void testSimple() throws Exception { |
| // lowercases only! |
| converter.setAnalyzer(new MockAnalyzer(random(), MockTokenizer.KEYWORD, true)); |
| assertConvertsTo("This is a test", new String[] { "this is a test" }); |
| } |
| |
| public void testComplicated() throws Exception { |
| // lowercases, removes field names, other syntax, collapses runs of whitespace, etc. |
| converter.setAnalyzer(new Analyzer() { |
| @Override |
| protected TokenStreamComponents createComponents(String fieldName) { |
| Tokenizer tokenizer = new KeywordTokenizer(); |
| TokenStream filter = new PatternReplaceFilter(tokenizer, |
| Pattern.compile("([^\\p{L}\\p{M}\\p{N}\\p{Cs}]*[\\p{L}\\p{M}\\p{N}\\p{Cs}\\_]+:)|([^\\p{L}\\p{M}\\p{N}\\p{Cs}])+"), " ", true); |
| filter = new LowerCaseFilter(filter); |
| filter = new TrimFilter(filter); |
| return new TokenStreamComponents(tokenizer, filter); |
| } |
| }); |
| assertConvertsTo("test1 +test2", new String[] { "test1 test2" }); |
| assertConvertsTo("test~", new String[] { "test" }); |
| assertConvertsTo("field:test", new String[] { "test" }); |
| assertConvertsTo("This is a test", new String[] { "this is a test" }); |
| assertConvertsTo(" This is a test", new String[] { "this is a test" }); |
| assertConvertsTo("Foo (field:bar) text_hi:हिन्दी ", new String[] { "foo bar हिन्दी" }); |
| } |
| |
| public void assertConvertsTo(String text, String expected[]) throws IOException { |
| Collection<Token> tokens = converter.convert(text); |
| assertEquals(tokens.size(), expected.length); |
| int i = 0; |
| for (Token token : tokens) { |
| assertEquals(token.toString(), expected[i]); |
| i++; |
| } |
| } |
| } |