/** blast some random strings through the analyzer */
@Test
public void testRandomStrings() throws Exception {
Analyzer a =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer =
new PatternTokenizer(newAttributeFactory(), Pattern.compile("a"), -1);
return new TokenStreamComponents(tokenizer);
}
};
checkRandomData(random(), a, 1000 * RANDOM_MULTIPLIER);
a.close();
Analyzer b =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer =
new PatternTokenizer(newAttributeFactory(), Pattern.compile("a"), 0);
return new TokenStreamComponents(tokenizer);
}
};
checkRandomData(random(), b, 1000 * RANDOM_MULTIPLIER);
b.close();
}
public void test() throws Exception {
final CharArraySet cas = new CharArraySet(3, false);
cas.add("jjp");
cas.add("wlmwoknt");
cas.add("tcgyreo");
final NormalizeCharMap.Builder builder = new NormalizeCharMap.Builder();
builder.add("mtqlpi", "");
builder.add("mwoknt", "jjp");
builder.add("tcgyreo", "zpfpajyws");
final NormalizeCharMap map = builder.build();
Analyzer a =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer t = new MockTokenizer(MockTokenFilter.ENGLISH_STOPSET, false, -65);
TokenFilter f = new CommonGramsFilter(t, cas);
return new TokenStreamComponents(t, f);
}
@Override
protected Reader initReader(String fieldName, Reader reader) {
reader = new MockCharFilter(reader, 0);
reader = new MappingCharFilter(map, reader);
reader = new TestRandomChains.CheckThatYouDidntReadAnythingReaderWrapper(reader);
return reader;
}
};
checkAnalysisConsistency(random(), a, false, "wmgddzunizdomqyj");
a.close();
}
// LUCENE-5725
public void testMultiValues() throws Exception {
MoreLikeThis mlt = new MoreLikeThis(reader);
Analyzer analyzer = new MockAnalyzer(random(), MockTokenizer.KEYWORD, false);
mlt.setAnalyzer(analyzer);
mlt.setMinDocFreq(1);
mlt.setMinTermFreq(1);
mlt.setMinWordLen(1);
mlt.setFieldNames(new String[] {"text"});
BooleanQuery query =
(BooleanQuery)
mlt.like(
"text",
new StringReader("lucene"),
new StringReader("lucene release"),
new StringReader("apache"),
new StringReader("apache lucene"));
Collection<BooleanClause> clauses = query.clauses();
assertEquals("Expected 2 clauses only!", 2, clauses.size());
for (BooleanClause clause : clauses) {
Term term = ((TermQuery) clause.getQuery()).getTerm();
assertTrue(
Arrays.asList(new Term("text", "lucene"), new Term("text", "apache")).contains(term));
}
analyzer.close();
}
/** test use of exclusion set */
public void testExclude() throws IOException {
CharArraySet exclusionSet = new CharArraySet(asSet("llengües"), false);
Analyzer a = new CatalanAnalyzer(CatalanAnalyzer.getDefaultStopSet(), exclusionSet);
checkOneTerm(a, "llengües", "llengües");
checkOneTerm(a, "llengua", "llengu");
a.close();
}
@Override
public void close() {
if (stopped.compareAndSet(false, true)) { // make sure we only stop once
try {
worker.close();
} catch (Exception e) {
log.workerException(e);
}
this.allIndexesManager.stop();
this.timingSource.stop();
serviceManager.releaseAllServices();
for (Analyzer an : this.analyzers.values()) {
an.close();
}
for (AbstractDocumentBuilder documentBuilder :
this.documentBuildersContainedEntities.values()) {
documentBuilder.close();
}
for (EntityIndexBinding entityIndexBinding : this.indexBindingForEntities.values()) {
entityIndexBinding.getDocumentBuilder().close();
}
// unregister statistic mbean
if (statisticsMBeanName != null) {
JMXRegistrar.unRegisterMBean(statisticsMBeanName);
}
}
}
/** test use of exclusion set */
public void testExclude() throws IOException {
CharArraySet exclusionSet = new CharArraySet(asSet("chicano"), false);
Analyzer a = new SpanishAnalyzer(SpanishAnalyzer.getDefaultStopSet(), exclusionSet);
checkOneTerm(a, "chicana", "chican");
checkOneTerm(a, "chicano", "chicano");
a.close();
}
public void testCuriousWikipediaString() throws Exception {
final CharArraySet protWords =
new CharArraySet(
new HashSet<>(
Arrays.asList("rrdpafa", "pupmmlu", "xlq", "dyy", "zqrxrrck", "o", "hsrlfvcha")),
false);
final byte table[] =
new byte[] {
-57, 26, 1, 48, 63, -23, 55, -84, 18, 120, -97, 103, 58, 13, 84, 89, 57, -13, -63, 5, 28,
97, -54, -94, 102, -108, -5, 5, 46, 40, 43, 78, 43, -72, 36, 29, 124, -106, -22, -51, 65,
5, 31, -42, 6, -99, 97, 14, 81, -128, 74, 100, 54, -55, -25, 53, -71, -98, 44, 33, 86,
106, -42, 47, 115, -89, -18, -26, 22, -95, -43, 83, -125, 105, -104, -24, 106, -16, 126,
115, -105, 97, 65, -33, 57, 44, -1, 123, -68, 100, 13, -41, -64, -119, 0, 92, 94, -36, 53,
-9, -102, -18, 90, 94, -26, 31, 71, -20
};
Analyzer a =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer = new WikipediaTokenizer();
TokenStream stream = new SopTokenFilter(tokenizer);
stream = new WordDelimiterFilter(stream, table, -50, protWords);
stream = new SopTokenFilter(stream);
return new TokenStreamComponents(tokenizer, stream);
}
};
checkAnalysisConsistency(random(), a, false, "B\u28c3\ue0f8[ \ud800\udfc2 </p> jb");
a.close();
}
public void testWithStemExclusionSet() throws IOException {
CharArraySet set = new CharArraySet(1, true);
set.add("پیاوە");
Analyzer a = new SoraniAnalyzer(CharArraySet.EMPTY_SET, set);
assertAnalyzesTo(a, "پیاوە", new String[] {"پیاوە"});
a.close();
}
/** test use of elisionfilter */
public void testContractions() throws IOException {
Analyzer a = new CatalanAnalyzer();
assertAnalyzesTo(
a,
"Diccionari de l'Institut d'Estudis Catalans",
new String[] {"diccion", "inst", "estud", "catalan"});
a.close();
}
public void cleanText(String... inboundTexts) {
try {
final List<String> fields = Lists.newArrayList();
for (String raw : inboundTexts) {
// Tidy t = new Tidy();
// t.setErrout(new PrintWriter(new ByteArrayOutputStream()));
// StringWriter out = new StringWriter();
// t.parse(new StringReader(raw), out);
// String tidied = out.getBuffer().toString();
// logger.debug("{}",tidied);
// AutoDetectParser p = new AutoDetectParser();
// p.parse(new ByteArrayInputStream(raw.getBytes()),
// new TextContentHandler(new DefaultHandler()
// {
// @Override
// public void characters(char[] ch, int start, int length) throws SAXException
// {
// CharBuffer buf = CharBuffer.wrap(ch, start, length);
// String s = buf.toString();
// logger.debug("{}",s);
// fields.add(s);
// }
// }), new Metadata());
}
Analyzer analyzer = new StandardAnalyzer();
// String joinedFields = Joiner.on(" ").join(fields).replaceAll("\\s+", " ");
String joinedFields = Joiner.on(" ").join(inboundTexts).replaceAll("\\s+", " ");
logger.debug("{}", joinedFields);
StringReader in = new StringReader(joinedFields);
TokenStream ts = analyzer.tokenStream("content", in);
ts.reset();
ts = new LowerCaseFilter(ts);
CharTermAttribute termAtt = ts.addAttribute(CharTermAttribute.class);
List<String> words = Lists.newArrayList();
while (ts.incrementToken()) {
char[] termBuffer = termAtt.buffer();
int termLen = termAtt.length();
String w = new String(termBuffer, 0, termLen);
words.add(w);
}
ts.end();
ts.close();
analyzer.close();
scrubbedWords = new ArrayList<String>();
for (String word : words) {
if (word.length() >= MINWORDLEN && !stopwords.contains(word)) {
scrubbedWords.add(word);
} else {
logger.debug("Ignoring word: {}", word);
}
}
// this.scrubbedWords = words;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/** test stopwords and stemming */
public void testBasics() throws IOException {
Analyzer a = new CatalanAnalyzer();
// stemming
checkOneTerm(a, "llengües", "llengu");
checkOneTerm(a, "llengua", "llengu");
// stopword
assertAnalyzesTo(a, "un", new String[] {});
a.close();
}
@Test
@AwaitsFix(bugUrl = "https://issues.apache.org/jira/browse/LUCENE-3869")
public void testRandomStrings() throws Exception {
Analyzer analyzer =
new UIMABaseAnalyzer(
"/uima/TestAggregateSentenceAE.xml", "org.apache.lucene.uima.ts.TokenAnnotation", null);
checkRandomData(random(), analyzer, 100 * RANDOM_MULTIPLIER);
analyzer.close();
}
/** test stopwords and stemming */
public void testBasics() throws IOException {
Analyzer a = new SpanishAnalyzer();
// stemming
checkOneTerm(a, "chicana", "chican");
checkOneTerm(a, "chicano", "chican");
// stopword
assertAnalyzesTo(a, "los", new String[] {});
a.close();
}
@AfterClass
public static void afterClass() throws Exception {
reader.close();
directory.close();
analyzer.close();
reader = null;
directory = null;
analyzer = null;
s1 = s2 = null;
}
public static void main(String[] args) {
server = new HttpSolrServer(DEFAULT_URL);
Random random = new Random(100);
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_43);
readFileByLines(filename, analyzer, random);
analyzer.close();
server = null;
System.runFinalization();
System.gc();
}
// LUCENE-3326
public void testMultiFields() throws Exception {
MoreLikeThis mlt = new MoreLikeThis(reader);
Analyzer analyzer = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);
mlt.setAnalyzer(analyzer);
mlt.setMinDocFreq(1);
mlt.setMinTermFreq(1);
mlt.setMinWordLen(1);
mlt.setFieldNames(new String[] {"text", "foobar"});
mlt.like("foobar", new StringReader("this is a test"));
analyzer.close();
}
@Test
@AwaitsFix(bugUrl = "https://issues.apache.org/jira/browse/LUCENE-3869")
public void testRandomStringsWithConfigurationParameters() throws Exception {
Map<String, Object> cp = new HashMap<>();
cp.put("line-end", "\r");
Analyzer analyzer =
new UIMABaseAnalyzer(
"/uima/TestWSTokenizerAE.xml", "org.apache.lucene.uima.ts.TokenAnnotation", cp);
checkRandomData(random(), analyzer, 100 * RANDOM_MULTIPLIER);
analyzer.close();
}
public void testEmptyTerm() throws IOException {
Analyzer a =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer = new KeywordTokenizer();
return new TokenStreamComponents(tokenizer, new KStemFilter(tokenizer));
}
};
checkOneTerm(a, "", "");
a.close();
}
/** blast some random strings through the analyzer */
public void testRandomStrings() throws Exception {
Analyzer a =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer = new MockTokenizer(MockTokenizer.WHITESPACE, false);
return new TokenStreamComponents(tokenizer, new ReverseStringFilter(tokenizer));
}
};
checkRandomData(random(), a, 1000 * RANDOM_MULTIPLIER);
a.close();
}
// Adds random graph after:
public void testRandomHugeStringsGraphAfter() throws Exception {
Random random = random();
Analyzer analyzer =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer = new StandardTokenizer(newAttributeFactory());
TokenStream tokenStream = new MockGraphTokenFilter(random(), tokenizer);
return new TokenStreamComponents(tokenizer, tokenStream);
}
};
checkRandomData(random, analyzer, 100 * RANDOM_MULTIPLIER, 8192);
analyzer.close();
}
public void testTopN() throws Exception {
int numDocs = 100;
int topN = 25;
// add series of docs with terms of decreasing df
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
for (int i = 0; i < numDocs; i++) {
addDoc(writer, generateStrSeq(0, i + 1));
}
IndexReader reader = writer.getReader();
writer.close();
// setup MLT query
MoreLikeThis mlt = new MoreLikeThis(reader);
Analyzer analyzer = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);
mlt.setAnalyzer(analyzer);
mlt.setMaxQueryTerms(topN);
mlt.setMinDocFreq(1);
mlt.setMinTermFreq(1);
mlt.setMinWordLen(1);
mlt.setFieldNames(new String[] {"text"});
// perform MLT query
String likeText = "";
for (String text : generateStrSeq(0, numDocs)) {
likeText += text + " ";
}
BooleanQuery query = (BooleanQuery) mlt.like("text", new StringReader(likeText));
// check best terms are topN of highest idf
Collection<BooleanClause> clauses = query.clauses();
assertEquals("Expected" + topN + "clauses only!", topN, clauses.size());
Term[] expectedTerms = new Term[topN];
int idx = 0;
for (String text : generateStrSeq(numDocs - topN, topN)) {
expectedTerms[idx++] = new Term("text", text);
}
for (BooleanClause clause : clauses) {
Term term = ((TermQuery) clause.getQuery()).getTerm();
assertTrue(Arrays.asList(expectedTerms).contains(term));
}
// clean up
reader.close();
dir.close();
analyzer.close();
}
/**
* Saves input documents in a format that can be read by the LDA model
*
* @param hits
* @throws IOException
*/
public void saveDocumentsToFile(ScoreDoc[] hits) throws IOException {
String index = "Index_TREC";
String field = "contents";
IndexReader reader = DirectoryReader.open(FSDirectory.open(new File(index)));
IndexSearcher searcher = new IndexSearcher(reader);
Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_48, IndexerTREC.stopWordsSet);
List<String> stopwords = new ArrayList<String>();
for (int i = 0; i < IndexerTREC.STOP_WORDS.length; i++) {
stopwords.add(IndexerTREC.STOP_WORDS[i]);
}
String docFileName = "model/newdocs.dat";
File file = new File(docFileName);
FileWriter filerWriterDocs = new FileWriter(file.getAbsoluteFile(), false);
BufferedWriter bufferedWriterDocs = new BufferedWriter(filerWriterDocs);
PrintWriter out = new PrintWriter(bufferedWriterDocs);
Document doc;
for (int i = 0; i < hits.length; i++) {
String docContent = "";
doc = searcher.doc(hits[i].doc);
String content = doc.get("contents").toLowerCase();
TokenStream tokenStream = analyzer.tokenStream("contents", doc.get("contents"));
CharTermAttribute charTermAttribute = tokenStream.addAttribute(CharTermAttribute.class);
tokenStream.reset();
while (tokenStream.incrementToken()) {
String term = charTermAttribute.toString();
if (!stopwords.contains(term.toLowerCase())) {
docContent = docContent + " " + term;
}
}
tokenStream.end();
tokenStream.close();
bufferedWriterDocs.write(docContent + "\n");
}
analyzer.close();
bufferedWriterDocs.close();
RandomAccessFile f = new RandomAccessFile(new File(docFileName), "rw");
f.seek(0); // to the beginning
String documentCount = Integer.toString(hits.length) + "\n";
f.write(documentCount.getBytes());
f.close();
}
// LUCENE-5269
@Slow
public void testUnicodeShinglesAndNgrams() throws Exception {
Analyzer analyzer =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer = new EdgeNGramTokenizer(2, 94);
// TokenStream stream = new SopTokenFilter(tokenizer);
TokenStream stream = new ShingleFilter(tokenizer, 5);
// stream = new SopTokenFilter(stream);
stream = new NGramTokenFilter(stream, 55, 83);
// stream = new SopTokenFilter(stream);
return new TokenStreamComponents(tokenizer, stream);
}
};
checkRandomData(random(), analyzer, 2000);
analyzer.close();
}
public void testBoostFactor() throws Throwable {
Map<String, Float> originalValues = getOriginalValues();
MoreLikeThis mlt = new MoreLikeThis(reader);
Analyzer analyzer = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);
mlt.setAnalyzer(analyzer);
mlt.setMinDocFreq(1);
mlt.setMinTermFreq(1);
mlt.setMinWordLen(1);
mlt.setFieldNames(new String[] {"text"});
mlt.setBoost(true);
// this mean that every term boost factor will be multiplied by this
// number
float boostFactor = 5;
mlt.setBoostFactor(boostFactor);
BooleanQuery query = (BooleanQuery) mlt.like("text", new StringReader("lucene release"));
Collection<BooleanClause> clauses = query.clauses();
assertEquals(
"Expected " + originalValues.size() + " clauses.", originalValues.size(), clauses.size());
for (BooleanClause clause : clauses) {
BoostQuery bq = (BoostQuery) clause.getQuery();
TermQuery tq = (TermQuery) bq.getQuery();
Float termBoost = originalValues.get(tq.getTerm().text());
assertNotNull("Expected term " + tq.getTerm().text(), termBoost);
float totalBoost = termBoost * boostFactor;
assertEquals(
"Expected boost of "
+ totalBoost
+ " for term '"
+ tq.getTerm().text()
+ "' got "
+ bq.getBoost(),
totalBoost,
bq.getBoost(),
0.0001);
}
analyzer.close();
}
private Map<String, Float> getOriginalValues() throws IOException {
Map<String, Float> originalValues = new HashMap<>();
MoreLikeThis mlt = new MoreLikeThis(reader);
Analyzer analyzer = new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false);
mlt.setAnalyzer(analyzer);
mlt.setMinDocFreq(1);
mlt.setMinTermFreq(1);
mlt.setMinWordLen(1);
mlt.setFieldNames(new String[] {"text"});
mlt.setBoost(true);
BooleanQuery query = (BooleanQuery) mlt.like("text", new StringReader("lucene release"));
Collection<BooleanClause> clauses = query.clauses();
for (BooleanClause clause : clauses) {
BoostQuery bq = (BoostQuery) clause.getQuery();
TermQuery tq = (TermQuery) bq.getQuery();
originalValues.put(tq.getTerm().text(), bq.getBoost());
}
analyzer.close();
return originalValues;
}
public void testIgnoreCaseNoSideEffects() throws Exception {
final Dictionary d;
// no multiple try-with to workaround bogus VerifyError
InputStream affixStream = TestStemmer.class.getResourceAsStream("simple.aff");
InputStream dictStream = TestStemmer.class.getResourceAsStream("simple.dic");
try {
d = new Dictionary(affixStream, Collections.singletonList(dictStream), true);
} finally {
IOUtils.closeWhileHandlingException(affixStream, dictStream);
}
Analyzer a =
new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName) {
Tokenizer tokenizer = new KeywordTokenizer();
return new TokenStreamComponents(tokenizer, new HunspellStemFilter(tokenizer, d));
}
};
checkOneTerm(a, "NoChAnGy", "NoChAnGy");
a.close();
}
public void testReusableTokenStream() throws Exception {
Analyzer a = new GreekAnalyzer();
// Verify the correct analysis of capitals and small accented letters, and
// stemming
assertAnalyzesTo(
a,
"Μία εξαιρετικά καλή και πλούσια σειρά χαρακτήρων της Ελληνικής γλώσσας",
new String[] {"μια", "εξαιρετ", "καλ", "πλουσ", "σειρ", "χαρακτηρ", "ελληνικ", "γλωσσ"});
// Verify the correct analysis of small letters with diaeresis and the elimination
// of punctuation marks
assertAnalyzesTo(
a,
"Προϊόντα (και) [πολλαπλές] - ΑΝΑΓΚΕΣ",
new String[] {"προιοντ", "πολλαπλ", "αναγκ"});
// Verify the correct analysis of capital accented letters and capital letters with diaeresis,
// as well as the elimination of stop words
assertAnalyzesTo(
a,
"ΠΡΟΫΠΟΘΕΣΕΙΣ Άψογος, ο μεστός και οι άλλοι",
new String[] {"προυποθεσ", "αψογ", "μεστ", "αλλ"});
a.close();
}
@Override
public void tearDown() throws Exception {
analyzer.close();
super.tearDown();
}
/** blast some random strings through the analyzer */
public void testRandomStrings() throws Exception {
Analyzer a = new GreekAnalyzer();
checkRandomData(random(), a, 1000 * RANDOM_MULTIPLIER);
a.close();
}
@Override
public void close() {
fakeAnalyzer.close();
super.close();
}
