| package org.apache.solr.analysis; |
| |
| /** |
| * 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. |
| */ |
| |
| import java.io.Reader; |
| import java.io.StringReader; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.lucene.analysis.MockTokenizer; |
| import org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.Tokenizer; |
| |
| /** |
| * Simple tests to ensure the NGram filter factories are working. |
| */ |
| public class TestNGramFilters extends BaseTokenTestCase { |
| /** |
| * Test NGramTokenizerFactory |
| */ |
| public void testNGramTokenizer() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| NGramTokenizerFactory factory = new NGramTokenizerFactory(); |
| factory.init(args); |
| Tokenizer stream = factory.create(reader); |
| assertTokenStreamContents(stream, |
| new String[] { "t", "e", "s", "t", "te", "es", "st" }); |
| } |
| /** |
| * Test NGramTokenizerFactory with min and max gram options |
| */ |
| public void testNGramTokenizer2() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| args.put("minGramSize", "2"); |
| args.put("maxGramSize", "3"); |
| NGramTokenizerFactory factory = new NGramTokenizerFactory(); |
| factory.init(args); |
| Tokenizer stream = factory.create(reader); |
| assertTokenStreamContents(stream, |
| new String[] { "te", "es", "st", "tes", "est" }); |
| } |
| /** |
| * Test the NGramFilterFactory |
| */ |
| public void testNGramFilter() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| NGramFilterFactory factory = new NGramFilterFactory(); |
| factory.init(args); |
| TokenStream stream = factory.create(new MockTokenizer(reader, MockTokenizer.WHITESPACE, false)); |
| assertTokenStreamContents(stream, |
| new String[] { "t", "e", "s", "t", "te", "es", "st" }); |
| } |
| /** |
| * Test the NGramFilterFactory with min and max gram options |
| */ |
| public void testNGramFilter2() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| args.put("minGramSize", "2"); |
| args.put("maxGramSize", "3"); |
| NGramFilterFactory factory = new NGramFilterFactory(); |
| factory.init(args); |
| TokenStream stream = factory.create(new MockTokenizer(reader, MockTokenizer.WHITESPACE, false)); |
| assertTokenStreamContents(stream, |
| new String[] { "te", "es", "st", "tes", "est" }); |
| } |
| /** |
| * Test EdgeNGramTokenizerFactory |
| */ |
| public void testEdgeNGramTokenizer() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| EdgeNGramTokenizerFactory factory = new EdgeNGramTokenizerFactory(); |
| factory.init(args); |
| Tokenizer stream = factory.create(reader); |
| assertTokenStreamContents(stream, |
| new String[] { "t" }); |
| } |
| /** |
| * Test EdgeNGramTokenizerFactory with min and max gram size |
| */ |
| public void testEdgeNGramTokenizer2() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| args.put("minGramSize", "1"); |
| args.put("maxGramSize", "2"); |
| EdgeNGramTokenizerFactory factory = new EdgeNGramTokenizerFactory(); |
| factory.init(args); |
| Tokenizer stream = factory.create(reader); |
| assertTokenStreamContents(stream, |
| new String[] { "t", "te" }); |
| } |
| /** |
| * Test EdgeNGramTokenizerFactory with side option |
| */ |
| public void testEdgeNGramTokenizer3() throws Exception { |
| Reader reader = new StringReader("ready"); |
| Map<String,String> args = new HashMap<String,String>(); |
| args.put("side", "back"); |
| EdgeNGramTokenizerFactory factory = new EdgeNGramTokenizerFactory(); |
| factory.init(args); |
| Tokenizer stream = factory.create(reader); |
| assertTokenStreamContents(stream, |
| new String[] { "y" }); |
| } |
| /** |
| * Test EdgeNGramFilterFactory |
| */ |
| public void testEdgeNGramFilter() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| EdgeNGramFilterFactory factory = new EdgeNGramFilterFactory(); |
| factory.init(args); |
| TokenStream stream = factory.create(new MockTokenizer(reader, MockTokenizer.WHITESPACE, false)); |
| assertTokenStreamContents(stream, |
| new String[] { "t" }); |
| } |
| /** |
| * Test EdgeNGramFilterFactory with min and max gram size |
| */ |
| public void testEdgeNGramFilter2() throws Exception { |
| Reader reader = new StringReader("test"); |
| Map<String,String> args = new HashMap<String,String>(); |
| args.put("minGramSize", "1"); |
| args.put("maxGramSize", "2"); |
| EdgeNGramFilterFactory factory = new EdgeNGramFilterFactory(); |
| factory.init(args); |
| TokenStream stream = factory.create(new MockTokenizer(reader, MockTokenizer.WHITESPACE, false)); |
| assertTokenStreamContents(stream, |
| new String[] { "t", "te" }); |
| } |
| /** |
| * Test EdgeNGramFilterFactory with side option |
| */ |
| public void testEdgeNGramFilter3() throws Exception { |
| Reader reader = new StringReader("ready"); |
| Map<String,String> args = new HashMap<String,String>(); |
| args.put("side", "back"); |
| EdgeNGramFilterFactory factory = new EdgeNGramFilterFactory(); |
| factory.init(args); |
| TokenStream stream = factory.create(new MockTokenizer(reader, MockTokenizer.WHITESPACE, false)); |
| assertTokenStreamContents(stream, |
| new String[] { "y" }); |
| } |
| } |