--- /dev/null
+package org.apache.lucene.analysis;
+
+import org.apache.lucene.analysis.standard.ClassicAnalyzer;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.IndexWriter;
+import org.apache.lucene.index.IndexWriterConfig;
+import org.apache.lucene.index.Term;
+import org.apache.lucene.index.TermPositions;
+import org.apache.lucene.store.RAMDirectory;
+import org.apache.lucene.util.Version;
+
+import java.io.IOException;
+import java.util.Arrays;
+
+
+/**
+ * Copyright 2004 The Apache Software Foundation
+ * <p/>
+ * Licensed 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.
+ */
+
+public class TestClassicAnalyzer extends BaseTokenStreamTestCase {
+
+ private Analyzer a = new ClassicAnalyzer(TEST_VERSION_CURRENT);
+
+ public void testMaxTermLength() throws Exception {
+ ClassicAnalyzer sa = new ClassicAnalyzer(TEST_VERSION_CURRENT);
+ sa.setMaxTokenLength(5);
+ assertAnalyzesTo(sa, "ab cd toolong xy z", new String[]{"ab", "cd", "xy", "z"});
+ }
+
+ public void testMaxTermLength2() throws Exception {
+ ClassicAnalyzer sa = new ClassicAnalyzer(TEST_VERSION_CURRENT);
+ assertAnalyzesTo(sa, "ab cd toolong xy z", new String[]{"ab", "cd", "toolong", "xy", "z"});
+ sa.setMaxTokenLength(5);
+
+ assertAnalyzesTo(sa, "ab cd toolong xy z", new String[]{"ab", "cd", "xy", "z"}, new int[]{1, 1, 2, 1});
+ }
+
+ public void testMaxTermLength3() throws Exception {
+ char[] chars = new char[255];
+ for(int i=0;i<255;i++)
+ chars[i] = 'a';
+ String longTerm = new String(chars, 0, 255);
+
+ assertAnalyzesTo(a, "ab cd " + longTerm + " xy z", new String[]{"ab", "cd", longTerm, "xy", "z"});
+ assertAnalyzesTo(a, "ab cd " + longTerm + "a xy z", new String[]{"ab", "cd", "xy", "z"});
+ }
+
+ public void testAlphanumeric() throws Exception {
+ // alphanumeric tokens
+ assertAnalyzesTo(a, "B2B", new String[]{"b2b"});
+ assertAnalyzesTo(a, "2B", new String[]{"2b"});
+ }
+
+ public void testUnderscores() throws Exception {
+ // underscores are delimiters, but not in email addresses (below)
+ assertAnalyzesTo(a, "word_having_underscore", new String[]{"word", "having", "underscore"});
+ assertAnalyzesTo(a, "word_with_underscore_and_stopwords", new String[]{"word", "underscore", "stopwords"});
+ }
+
+ public void testDelimiters() throws Exception {
+ // other delimiters: "-", "/", ","
+ assertAnalyzesTo(a, "some-dashed-phrase", new String[]{"some", "dashed", "phrase"});
+ assertAnalyzesTo(a, "dogs,chase,cats", new String[]{"dogs", "chase", "cats"});
+ assertAnalyzesTo(a, "ac/dc", new String[]{"ac", "dc"});
+ }
+
+ public void testApostrophes() throws Exception {
+ // internal apostrophes: O'Reilly, you're, O'Reilly's
+ // possessives are actually removed by StardardFilter, not the tokenizer
+ assertAnalyzesTo(a, "O'Reilly", new String[]{"o'reilly"});
+ assertAnalyzesTo(a, "you're", new String[]{"you're"});
+ assertAnalyzesTo(a, "she's", new String[]{"she"});
+ assertAnalyzesTo(a, "Jim's", new String[]{"jim"});
+ assertAnalyzesTo(a, "don't", new String[]{"don't"});
+ assertAnalyzesTo(a, "O'Reilly's", new String[]{"o'reilly"});
+ }
+
+ public void testTSADash() throws Exception {
+ // t and s had been stopwords in Lucene <= 2.0, which made it impossible
+ // to correctly search for these terms:
+ assertAnalyzesTo(a, "s-class", new String[]{"s", "class"});
+ assertAnalyzesTo(a, "t-com", new String[]{"t", "com"});
+ // 'a' is still a stopword:
+ assertAnalyzesTo(a, "a-class", new String[]{"class"});
+ }
+
+ public void testCompanyNames() throws Exception {
+ // company names
+ assertAnalyzesTo(a, "AT&T", new String[]{"at&t"});
+ assertAnalyzesTo(a, "Excite@Home", new String[]{"excite@home"});
+ }
+
+ public void testLucene1140() throws Exception {
+ try {
+ ClassicAnalyzer analyzer = new ClassicAnalyzer(TEST_VERSION_CURRENT);
+ assertAnalyzesTo(analyzer, "www.nutch.org.", new String[]{ "www.nutch.org" }, new String[] { "<HOST>" });
+ } catch (NullPointerException e) {
+ fail("Should not throw an NPE and it did");
+ }
+
+ }
+
+ public void testDomainNames() throws Exception {
+ // Current lucene should not show the bug
+ ClassicAnalyzer a2 = new ClassicAnalyzer(TEST_VERSION_CURRENT);
+
+ // domain names
+ assertAnalyzesTo(a2, "www.nutch.org", new String[]{"www.nutch.org"});
+ //Notice the trailing . See https://issues.apache.org/jira/browse/LUCENE-1068.
+ // the following should be recognized as HOST:
+ assertAnalyzesTo(a2, "www.nutch.org.", new String[]{ "www.nutch.org" }, new String[] { "<HOST>" });
+
+ // 2.3 should show the bug
+ a2 = new ClassicAnalyzer(org.apache.lucene.util.Version.LUCENE_23);
+ assertAnalyzesTo(a2, "www.nutch.org.", new String[]{ "wwwnutchorg" }, new String[] { "<ACRONYM>" });
+
+ // 2.4 should not show the bug
+ a2 = new ClassicAnalyzer(Version.LUCENE_24);
+ assertAnalyzesTo(a2, "www.nutch.org.", new String[]{ "www.nutch.org" }, new String[] { "<HOST>" });
+ }
+
+ public void testEMailAddresses() throws Exception {
+ // email addresses, possibly with underscores, periods, etc
+ assertAnalyzesTo(a, "test@example.com", new String[]{"test@example.com"});
+ assertAnalyzesTo(a, "first.lastname@example.com", new String[]{"first.lastname@example.com"});
+ assertAnalyzesTo(a, "first_lastname@example.com", new String[]{"first_lastname@example.com"});
+ }
+
+ public void testNumeric() throws Exception {
+ // floating point, serial, model numbers, ip addresses, etc.
+ // every other segment must have at least one digit
+ assertAnalyzesTo(a, "21.35", new String[]{"21.35"});
+ assertAnalyzesTo(a, "R2D2 C3PO", new String[]{"r2d2", "c3po"});
+ assertAnalyzesTo(a, "216.239.63.104", new String[]{"216.239.63.104"});
+ assertAnalyzesTo(a, "1-2-3", new String[]{"1-2-3"});
+ assertAnalyzesTo(a, "a1-b2-c3", new String[]{"a1-b2-c3"});
+ assertAnalyzesTo(a, "a1-b-c3", new String[]{"a1-b-c3"});
+ }
+
+ public void testTextWithNumbers() throws Exception {
+ // numbers
+ assertAnalyzesTo(a, "David has 5000 bones", new String[]{"david", "has", "5000", "bones"});
+ }
+
+ public void testVariousText() throws Exception {
+ // various
+ assertAnalyzesTo(a, "C embedded developers wanted", new String[]{"c", "embedded", "developers", "wanted"});
+ assertAnalyzesTo(a, "foo bar FOO BAR", new String[]{"foo", "bar", "foo", "bar"});
+ assertAnalyzesTo(a, "foo bar . FOO <> BAR", new String[]{"foo", "bar", "foo", "bar"});
+ assertAnalyzesTo(a, "\"QUOTED\" word", new String[]{"quoted", "word"});
+ }
+
+ public void testAcronyms() throws Exception {
+ // acronyms have their dots stripped
+ assertAnalyzesTo(a, "U.S.A.", new String[]{"usa"});
+ }
+
+ public void testCPlusPlusHash() throws Exception {
+ // It would be nice to change the grammar in StandardTokenizer.jj to make "C#" and "C++" end up as tokens.
+ assertAnalyzesTo(a, "C++", new String[]{"c"});
+ assertAnalyzesTo(a, "C#", new String[]{"c"});
+ }
+
+ public void testKorean() throws Exception {
+ // Korean words
+ assertAnalyzesTo(a, "안녕하세요 한글입니다", new String[]{"안녕하세요", "한글입니다"});
+ }
+
+ // Compliance with the "old" JavaCC-based analyzer, see:
+ // https://issues.apache.org/jira/browse/LUCENE-966#action_12516752
+
+ public void testComplianceFileName() throws Exception {
+ assertAnalyzesTo(a, "2004.jpg",
+ new String[]{"2004.jpg"},
+ new String[]{"<HOST>"});
+ }
+
+ public void testComplianceNumericIncorrect() throws Exception {
+ assertAnalyzesTo(a, "62.46",
+ new String[]{"62.46"},
+ new String[]{"<HOST>"});
+ }
+
+ public void testComplianceNumericLong() throws Exception {
+ assertAnalyzesTo(a, "978-0-94045043-1",
+ new String[]{"978-0-94045043-1"},
+ new String[]{"<NUM>"});
+ }
+
+ public void testComplianceNumericFile() throws Exception {
+ assertAnalyzesTo(
+ a,
+ "78academyawards/rules/rule02.html",
+ new String[]{"78academyawards/rules/rule02.html"},
+ new String[]{"<NUM>"});
+ }
+
+ public void testComplianceNumericWithUnderscores() throws Exception {
+ assertAnalyzesTo(
+ a,
+ "2006-03-11t082958z_01_ban130523_rtridst_0_ozabs",
+ new String[]{"2006-03-11t082958z_01_ban130523_rtridst_0_ozabs"},
+ new String[]{"<NUM>"});
+ }
+
+ public void testComplianceNumericWithDash() throws Exception {
+ assertAnalyzesTo(a, "mid-20th", new String[]{"mid-20th"},
+ new String[]{"<NUM>"});
+ }
+
+ public void testComplianceManyTokens() throws Exception {
+ assertAnalyzesTo(
+ a,
+ "/money.cnn.com/magazines/fortune/fortune_archive/2007/03/19/8402357/index.htm "
+ + "safari-0-sheikh-zayed-grand-mosque.jpg",
+ new String[]{"money.cnn.com", "magazines", "fortune",
+ "fortune", "archive/2007/03/19/8402357", "index.htm",
+ "safari-0-sheikh", "zayed", "grand", "mosque.jpg"},
+ new String[]{"<HOST>", "<ALPHANUM>", "<ALPHANUM>",
+ "<ALPHANUM>", "<NUM>", "<HOST>", "<NUM>", "<ALPHANUM>",
+ "<ALPHANUM>", "<HOST>"});
+ }
+
+ public void testJava14BWCompatibility() throws Exception {
+ ClassicAnalyzer sa = new ClassicAnalyzer(Version.LUCENE_30);
+ assertAnalyzesTo(sa, "test\u02C6test", new String[] { "test", "test" });
+ }
+
+ /**
+ * Make sure we skip wicked long terms.
+ */
+ public void testWickedLongTerm() throws IOException {
+ RAMDirectory dir = new RAMDirectory();
+ IndexWriter writer = new IndexWriter(dir, new IndexWriterConfig(
+ TEST_VERSION_CURRENT, new ClassicAnalyzer(TEST_VERSION_CURRENT)));
+
+ char[] chars = new char[IndexWriter.MAX_TERM_LENGTH];
+ Arrays.fill(chars, 'x');
+ Document doc = new Document();
+ final String bigTerm = new String(chars);
+
+ // This produces a too-long term:
+ String contents = "abc xyz x" + bigTerm + " another term";
+ doc.add(new Field("content", contents, Field.Store.NO, Field.Index.ANALYZED));
+ writer.addDocument(doc);
+
+ // Make sure we can add another normal document
+ doc = new Document();
+ doc.add(new Field("content", "abc bbb ccc", Field.Store.NO, Field.Index.ANALYZED));
+ writer.addDocument(doc);
+ writer.close();
+
+ IndexReader reader = IndexReader.open(dir, true);
+
+ // Make sure all terms < max size were indexed
+ assertEquals(2, reader.docFreq(new Term("content", "abc")));
+ assertEquals(1, reader.docFreq(new Term("content", "bbb")));
+ assertEquals(1, reader.docFreq(new Term("content", "term")));
+ assertEquals(1, reader.docFreq(new Term("content", "another")));
+
+ // Make sure position is still incremented when
+ // massive term is skipped:
+ TermPositions tps = reader.termPositions(new Term("content", "another"));
+ assertTrue(tps.next());
+ assertEquals(1, tps.freq());
+ assertEquals(3, tps.nextPosition());
+
+ // Make sure the doc that has the massive term is in
+ // the index:
+ assertEquals("document with wicked long term should is not in the index!", 2, reader.numDocs());
+
+ reader.close();
+
+ // Make sure we can add a document with exactly the
+ // maximum length term, and search on that term:
+ doc = new Document();
+ doc.add(new Field("content", bigTerm, Field.Store.NO, Field.Index.ANALYZED));
+ ClassicAnalyzer sa = new ClassicAnalyzer(TEST_VERSION_CURRENT);
+ sa.setMaxTokenLength(100000);
+ writer = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, sa));
+ writer.addDocument(doc);
+ writer.close();
+ reader = IndexReader.open(dir, true);
+ assertEquals(1, reader.docFreq(new Term("content", bigTerm)));
+ reader.close();
+
+ dir.close();
+ }
+
+ /** blast some random strings through the analyzer */
+ public void testRandomStrings() throws Exception {
+ checkRandomData(random, new ClassicAnalyzer(TEST_VERSION_CURRENT), 10000*RANDOM_MULTIPLIER);
+ }
+}
fnp / pylucene.git / blobdiff