/*
* How to construct a boolean query with shingles. A query like this will
* implicitly score those documents higher that contain the words in the query
* in the right order and adjacent to each other.
*/
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void testShingleAnalyzerWrapperBooleanQuery() throws Exception
public virtual void testShingleAnalyzerWrapperBooleanQuery()
{
BooleanQuery q = new BooleanQuery();
TokenStream ts = analyzer.tokenStream("content", "test sentence");
try
{
CharTermAttribute termAtt = ts.addAttribute(typeof(CharTermAttribute));
ts.reset();
while (ts.incrementToken())
{
string termText = termAtt.ToString();
q.add(new TermQuery(new Term("content", termText)), BooleanClause.Occur.SHOULD);
}
ts.end();
}
finally
{
IOUtils.closeWhileHandlingException(ts);
}
ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
int[] ranks = new int[] { 1, 2, 0 };
compareRanks(hits, ranks);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void test() throws java.io.IOException
public virtual void test()
{
string test = "The quick red fox jumped over the lazy brown dogs";
NumericPayloadTokenFilter nptf = new NumericPayloadTokenFilter(new WordTokenFilter(this, new MockTokenizer(new StringReader(test), MockTokenizer.WHITESPACE, false)), 3, "D");
bool seenDogs = false;
CharTermAttribute termAtt = nptf.getAttribute(typeof(CharTermAttribute));
TypeAttribute typeAtt = nptf.getAttribute(typeof(TypeAttribute));
PayloadAttribute payloadAtt = nptf.getAttribute(typeof(PayloadAttribute));
nptf.reset();
while (nptf.incrementToken())
{
if (termAtt.ToString().Equals("dogs"))
{
seenDogs = true;
assertTrue(typeAtt.type() + " is not equal to " + "D", typeAtt.type().Equals("D") == true);
assertTrue("payloadAtt.getPayload() is null and it shouldn't be", payloadAtt.Payload != null);
sbyte[] bytes = payloadAtt.Payload.bytes; //safe here to just use the bytes, otherwise we should use offset, length
assertTrue(bytes.Length + " does not equal: " + payloadAtt.Payload.length, bytes.Length == payloadAtt.Payload.length);
assertTrue(payloadAtt.Payload.offset + " does not equal: " + 0, payloadAtt.Payload.offset == 0);
float pay = PayloadHelper.decodeFloat(bytes);
assertTrue(pay + " does not equal: " + 3, pay == 3);
}
else
{
assertTrue(typeAtt.type() + " is not null and it should be", typeAtt.type().Equals("word"));
}
}
assertTrue(seenDogs + " does not equal: " + true, seenDogs == true);
}
/*
* This shows how to construct a phrase query containing shingles.
*/
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void testShingleAnalyzerWrapperPhraseQuery() throws Exception
public virtual void testShingleAnalyzerWrapperPhraseQuery()
{
PhraseQuery q = new PhraseQuery();
TokenStream ts = analyzer.tokenStream("content", "this sentence");
try
{
int j = -1;
PositionIncrementAttribute posIncrAtt = ts.addAttribute(typeof(PositionIncrementAttribute));
CharTermAttribute termAtt = ts.addAttribute(typeof(CharTermAttribute));
ts.reset();
while (ts.incrementToken())
{
j += posIncrAtt.PositionIncrement;
string termText = termAtt.ToString();
q.add(new Term("content", termText), j);
}
ts.end();
}
finally
{
IOUtils.closeWhileHandlingException(ts);
}
ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
int[] ranks = new int[] { 0 };
compareRanks(hits, ranks);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void testReset() throws Exception
public virtual void testReset()
{
CharArraySet dict = makeDictionary("Rind", "Fleisch", "Draht", "Schere", "Gesetz", "Aufgabe", "Überwachung");
Tokenizer wsTokenizer = new WhitespaceTokenizer(TEST_VERSION_CURRENT, new StringReader("Rindfleischüberwachungsgesetz"));
DictionaryCompoundWordTokenFilter tf = new DictionaryCompoundWordTokenFilter(TEST_VERSION_CURRENT, wsTokenizer, dict, CompoundWordTokenFilterBase.DEFAULT_MIN_WORD_SIZE, CompoundWordTokenFilterBase.DEFAULT_MIN_SUBWORD_SIZE, CompoundWordTokenFilterBase.DEFAULT_MAX_SUBWORD_SIZE, false);
CharTermAttribute termAtt = tf.getAttribute(typeof(CharTermAttribute));
tf.reset();
assertTrue(tf.incrementToken());
assertEquals("Rindfleischüberwachungsgesetz", termAtt.ToString());
assertTrue(tf.incrementToken());
assertEquals("Rind", termAtt.ToString());
tf.end();
tf.close();
wsTokenizer.Reader = new StringReader("Rindfleischüberwachungsgesetz");
tf.reset();
assertTrue(tf.incrementToken());
assertEquals("Rindfleischüberwachungsgesetz", termAtt.ToString());
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void testQueryReset() throws Exception
public virtual void testQueryReset()
{
const string input = "How the s a brown s cow d like A B thing?";
WhitespaceTokenizer wt = new WhitespaceTokenizer(TEST_VERSION_CURRENT, new StringReader(input));
CommonGramsFilter cgf = new CommonGramsFilter(TEST_VERSION_CURRENT, wt, commonWords);
CommonGramsQueryFilter nsf = new CommonGramsQueryFilter(cgf);
CharTermAttribute term = wt.addAttribute(typeof(CharTermAttribute));
nsf.reset();
assertTrue(nsf.incrementToken());
assertEquals("How_the", term.ToString());
assertTrue(nsf.incrementToken());
assertEquals("the_s", term.ToString());
nsf.close();
wt.Reader = new StringReader(input);
nsf.reset();
assertTrue(nsf.incrementToken());
assertEquals("How_the", term.ToString());
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public final boolean incrementToken() throws java.io.IOException
public override bool incrementToken()
{
if (!input.incrementToken())
{
return(false);
}
if (termAtt.ToString().Equals("dogs"))
{
typeAtt.Type = "D";
}
return(true);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public boolean incrementToken() throws java.io.IOException
public override bool incrementToken()
{
if (input.incrementToken())
{
if (!keywordAttr.Keyword)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final String term = termAtt.toString().toLowerCase(java.util.Locale.ROOT);
string term = termAtt.ToString().ToLower(Locale.ROOT);
termAtt.setEmpty().append(term);
}
return(true);
}
return(false);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: void assertTermEquals(String expected, org.apache.lucene.analysis.TokenStream stream, org.apache.lucene.analysis.tokenattributes.CharTermAttribute termAtt, org.apache.lucene.analysis.tokenattributes.PayloadAttribute payAtt, byte[] expectPay) throws Exception
internal virtual void assertTermEquals(string expected, TokenStream stream, CharTermAttribute termAtt, PayloadAttribute payAtt, sbyte[] expectPay)
{
assertTrue(stream.incrementToken());
assertEquals(expected, termAtt.ToString());
BytesRef payload = payAtt.Payload;
if (payload != null)
{
assertTrue(payload.length + " does not equal: " + expectPay.Length, payload.length == expectPay.Length);
for (int i = 0; i < expectPay.Length; i++)
{
assertTrue(expectPay[i] + " does not equal: " + payload.bytes[i + payload.offset], expectPay[i] == payload.bytes[i + payload.offset]);
}
}
else
{
assertTrue("expectPay is not null and it should be", expectPay == null);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void test() throws java.io.IOException
public virtual void test()
{
TokenTypeSinkFilter sinkFilter = new TokenTypeSinkFilter("D");
string test = "The quick red fox jumped over the lazy brown dogs";
TeeSinkTokenFilter ttf = new TeeSinkTokenFilter(new WordTokenFilter(this, new MockTokenizer(new StringReader(test), MockTokenizer.WHITESPACE, false)));
TeeSinkTokenFilter.SinkTokenStream sink = ttf.newSinkTokenStream(sinkFilter);
bool seenDogs = false;
CharTermAttribute termAtt = ttf.addAttribute(typeof(CharTermAttribute));
TypeAttribute typeAtt = ttf.addAttribute(typeof(TypeAttribute));
ttf.reset();
while (ttf.incrementToken())
{
if (termAtt.ToString().Equals("dogs"))
{
seenDogs = true;
assertTrue(typeAtt.type() + " is not equal to " + "D", typeAtt.type().Equals("D") == true);
}
else
{
assertTrue(typeAtt.type() + " is not null and it should be", typeAtt.type().Equals("word"));
}
}
assertTrue(seenDogs + " does not equal: " + true, seenDogs == true);
int sinkCount = 0;
sink.reset();
while (sink.incrementToken())
{
sinkCount++;
}
assertTrue("sink Size: " + sinkCount + " is not: " + 1, sinkCount == 1);
}
/// <returns> Returns true for next token in the stream, or false at EOS </returns>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public boolean incrementToken() throws java.io.IOException
public override bool incrementToken()
{
if (input.incrementToken())
{
string term = termAtt.ToString();
if (!keywordAttr.Keyword)
{
string s = stemmer.stem(term);
// If not stemmed, don't waste the time adjusting the token.
if ((s != null) && !s.Equals(term))
{
termAtt.setEmpty().append(s);
}
}
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Pop one input token's worth of tokens off the filter and verify that they are as expected.
/// </summary>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: void assertNextTerms(String expectedUnfolded, String expectedFolded, ASCIIFoldingFilter filter, org.apache.lucene.analysis.tokenattributes.CharTermAttribute termAtt) throws Exception
internal virtual void assertNextTerms(string expectedUnfolded, string expectedFolded, ASCIIFoldingFilter filter, CharTermAttribute termAtt)
{
assertTrue(filter.incrementToken());
assertEquals(expectedFolded, termAtt.ToString());
if (filter.PreserveOriginal && !expectedUnfolded.Equals(expectedFolded))
{
assertTrue(filter.incrementToken());
assertEquals(expectedUnfolded, termAtt.ToString());
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: void assertTermEquals(String expected, org.apache.lucene.analysis.TokenStream stream, org.apache.lucene.analysis.tokenattributes.CharTermAttribute termAtt, org.apache.lucene.analysis.tokenattributes.PayloadAttribute payAtt, byte[] expectPay) throws Exception
internal virtual void assertTermEquals(string expected, TokenStream stream, CharTermAttribute termAtt, PayloadAttribute payAtt, sbyte[] expectPay)
{
assertTrue(stream.incrementToken());
assertEquals(expected, termAtt.ToString());
BytesRef payload = payAtt.Payload;
if (payload != null)
{
assertTrue(payload.length + " does not equal: " + expectPay.Length, payload.length == expectPay.Length);
for (int i = 0; i < expectPay.Length; i++)
{
assertTrue(expectPay[i] + " does not equal: " + payload.bytes[i + payload.offset], expectPay[i] == payload.bytes[i + payload.offset]);
}
}
else
{
assertTrue("expectPay is not null and it should be", expectPay == null);
}
}