1 package org.apache.lucene.search;
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20 import java.util.Arrays;
22 import org.apache.lucene.util.LuceneTestCase;
24 import org.apache.lucene.analysis.MockAnalyzer;
25 import org.apache.lucene.analysis.WhitespaceAnalyzer;
26 import org.apache.lucene.document.DateTools;
27 import org.apache.lucene.document.Document;
28 import org.apache.lucene.document.Field;
29 import org.apache.lucene.index.IndexReader;
30 import org.apache.lucene.index.RandomIndexWriter;
31 import org.apache.lucene.queryParser.QueryParser;
32 import org.apache.lucene.search.Query;
33 import org.apache.lucene.search.Sort;
34 import org.apache.lucene.search.SortField;
35 import org.apache.lucene.store.Directory;
38 * Test date sorting, i.e. auto-sorting of fields with type "long".
39 * See http://issues.apache.org/jira/browse/LUCENE-1045
41 public class TestDateSort extends LuceneTestCase {
43 private static final String TEXT_FIELD = "text";
44 private static final String DATE_TIME_FIELD = "dateTime";
46 private Directory directory;
47 private IndexReader reader;
50 public void setUp() throws Exception {
52 // Create an index writer.
53 directory = newDirectory();
54 RandomIndexWriter writer = new RandomIndexWriter(random, directory, new MockAnalyzer(random));
57 // Add the first document. text = "Document 1" dateTime = Oct 10 03:25:22 EDT 2007
58 writer.addDocument(createDocument("Document 1", 1192001122000L));
59 // Add the second document. text = "Document 2" dateTime = Oct 10 03:25:26 EDT 2007
60 writer.addDocument(createDocument("Document 2", 1192001126000L));
61 // Add the third document. text = "Document 3" dateTime = Oct 11 07:12:13 EDT 2007
62 writer.addDocument(createDocument("Document 3", 1192101133000L));
63 // Add the fourth document. text = "Document 4" dateTime = Oct 11 08:02:09 EDT 2007
64 writer.addDocument(createDocument("Document 4", 1192104129000L));
66 // Add the fifth document. text = "Document 5" dateTime = Oct 12 13:25:43 EDT 2007
67 writer.addDocument(createDocument("Document 5", 1192209943000L));
69 reader = writer.getReader();
74 public void tearDown() throws Exception {
80 public void testReverseDateSort() throws Exception {
81 IndexSearcher searcher = newSearcher(reader);
83 Sort sort = new Sort(new SortField(DATE_TIME_FIELD, SortField.STRING, true));
85 QueryParser queryParser = new QueryParser(TEST_VERSION_CURRENT, TEXT_FIELD, new MockAnalyzer(random));
86 Query query = queryParser.parse("Document");
88 // Execute the search and process the search results.
89 String[] actualOrder = new String[5];
90 ScoreDoc[] hits = searcher.search(query, null, 1000, sort).scoreDocs;
91 for (int i = 0; i < hits.length; i++) {
92 Document document = searcher.doc(hits[i].doc);
93 String text = document.get(TEXT_FIELD);
94 actualOrder[i] = text;
98 // Set up the expected order (i.e. Document 5, 4, 3, 2, 1).
99 String[] expectedOrder = new String[5];
100 expectedOrder[0] = "Document 5";
101 expectedOrder[1] = "Document 4";
102 expectedOrder[2] = "Document 3";
103 expectedOrder[3] = "Document 2";
104 expectedOrder[4] = "Document 1";
106 assertEquals(Arrays.asList(expectedOrder), Arrays.asList(actualOrder));
109 private Document createDocument(String text, long time) {
110 Document document = new Document();
112 // Add the text field.
113 Field textField = newField(TEXT_FIELD, text, Field.Store.YES, Field.Index.ANALYZED);
114 document.add(textField);
116 // Add the date/time field.
117 String dateTimeString = DateTools.timeToString(time, DateTools.Resolution.SECOND);
118 Field dateTimeField = newField(DATE_TIME_FIELD, dateTimeString, Field.Store.YES,
119 Field.Index.NOT_ANALYZED);
120 document.add(dateTimeField);