| package org.apache.lucene; |
| |
| /** |
| * 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.IOException; |
| |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.MockAnalyzer; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.TextField; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.index.RandomIndexWriter; |
| import org.apache.lucene.search.*; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| /** |
| * A very simple demo used in the API documentation (src/java/overview.html). |
| * |
| * Please try to keep src/java/overview.html up-to-date when making changes |
| * to this class. |
| */ |
| public class TestDemo extends LuceneTestCase { |
| |
| public void testDemo() throws IOException { |
| Analyzer analyzer = new MockAnalyzer(random); |
| |
| // Store the index in memory: |
| Directory directory = newDirectory(); |
| // To store an index on disk, use this instead: |
| //Directory directory = FSDirectory.open("/tmp/testindex"); |
| RandomIndexWriter iwriter = new RandomIndexWriter(random, directory, analyzer); |
| iwriter.w.setInfoStream(VERBOSE ? System.out : null); |
| Document doc = new Document(); |
| String longTerm = "longtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongtermlongterm"; |
| String text = "This is the text to be indexed. " + longTerm; |
| doc.add(newField("fieldname", text, TextField.TYPE_STORED)); |
| iwriter.addDocument(doc); |
| iwriter.close(); |
| |
| // Now search the index: |
| IndexSearcher isearcher = new IndexSearcher(directory, true); // read-only=true |
| |
| assertEquals(1, isearcher.search(new TermQuery(new Term("fieldname", longTerm)), 1).totalHits); |
| Query query = new TermQuery(new Term("fieldname", "text")); |
| TopDocs hits = isearcher.search(query, null, 1); |
| assertEquals(1, hits.totalHits); |
| // Iterate through the results: |
| for (int i = 0; i < hits.scoreDocs.length; i++) { |
| Document hitDoc = isearcher.doc(hits.scoreDocs[i].doc); |
| assertEquals(text, hitDoc.get("fieldname")); |
| } |
| |
| // Test simple phrase query |
| PhraseQuery phraseQuery = new PhraseQuery(); |
| phraseQuery.add(new Term("fieldname", "to")); |
| phraseQuery.add(new Term("fieldname", "be")); |
| assertEquals(1, isearcher.search(phraseQuery, null, 1).totalHits); |
| |
| isearcher.close(); |
| directory.close(); |
| } |
| } |