/// <summary>
/// Creates a stopword set from the given stopword array.
/// </summary>
/// <param name="matchVersion"> Lucene version to enable correct Unicode 4.0 behavior in the returned set if Version > 3.0 </param>
/// <param name="stopWords"> An array of stopwords </param>
/// <param name="ignoreCase"> If true, all words are lower cased first. </param>
/// <returns> a Set containing the words </returns>
public static CharArraySet MakeStopSet(LuceneVersion matchVersion, string[] stopWords, bool ignoreCase)
{
CharArraySet stopSet = new CharArraySet(matchVersion, stopWords.Length, ignoreCase);
stopSet.UnionWith(stopWords);
return(stopSet);
}
internal readonly bool forceFirstLetter; // make sure the first letter is capital even if it is in the keep list
/// <summary>
/// Creates a new CapitalizationFilterFactory </summary>
public CapitalizationFilterFactory(IDictionary<string, string> args)
: base(args)
{
AssureMatchVersion();
bool ignoreCase = GetBoolean(args, KEEP_IGNORE_CASE, false);
IEnumerable<string> k = GetSet(args, KEEP);
if (k != null)
{
keep = new CharArraySet(luceneMatchVersion, 10, ignoreCase);
keep.UnionWith(k);
}
k = GetSet(args, OK_PREFIX);
if (k != null)
{
okPrefix = new List<char[]>();
foreach (string item in k)
{
okPrefix.Add(item.ToCharArray());
}
}
minWordLength = GetInt(args, MIN_WORD_LENGTH, 0);
maxWordCount = GetInt(args, MAX_WORD_COUNT, CapitalizationFilter.DEFAULT_MAX_WORD_COUNT);
maxTokenLength = GetInt(args, MAX_TOKEN_LENGTH, CapitalizationFilter.DEFAULT_MAX_TOKEN_LENGTH);
onlyFirstWord = GetBoolean(args, ONLY_FIRST_WORD, true);
forceFirstLetter = GetBoolean(args, FORCE_FIRST_LETTER, true);
if (args.Count > 0)
{
throw new System.ArgumentException("Unknown parameters: " + args);
}
}
/// <summary>
/// Creates a stopword set from the given stopword list. </summary>
/// <param name="matchVersion"> Lucene version to enable correct Unicode 4.0 behavior in the returned set if Version > 3.0 </param>
/// <param name="stopWords"> A List of Strings or char[] or any other toString()-able list representing the stopwords </param>
/// <param name="ignoreCase"> if true, all words are lower cased first </param>
/// <returns> A Set (<seealso cref="CharArraySet"/>) containing the words </returns>
public static CharArraySet MakeStopSet <T1>(LuceneVersion matchVersion, IEnumerable <T1> stopWords, bool ignoreCase)
{
var stopSet = new CharArraySet(matchVersion, stopWords.Count(), ignoreCase);
stopSet.UnionWith(stopWords);
return(stopSet);
}
private readonly CultureInfo culture; // LUCENENET specific
/// <summary>
/// Creates a new <see cref="CapitalizationFilterFactory"/> </summary>
public CapitalizationFilterFactory(IDictionary <string, string> args)
: base(args)
{
AssureMatchVersion();
bool ignoreCase = GetBoolean(args, KEEP_IGNORE_CASE, false);
ICollection <string> k = GetSet(args, KEEP);
if (k != null)
{
keep = new CharArraySet(m_luceneMatchVersion, 10, ignoreCase);
keep.UnionWith(k);
}
k = GetSet(args, OK_PREFIX);
if (k != null)
{
okPrefix = new List <char[]>();
foreach (string item in k)
{
okPrefix.Add(item.ToCharArray());
}
}
minWordLength = GetInt32(args, MIN_WORD_LENGTH, 0);
maxWordCount = GetInt32(args, MAX_WORD_COUNT, CapitalizationFilter.DEFAULT_MAX_WORD_COUNT);
maxTokenLength = GetInt32(args, MAX_TOKEN_LENGTH, CapitalizationFilter.DEFAULT_MAX_TOKEN_LENGTH);
onlyFirstWord = GetBoolean(args, ONLY_FIRST_WORD, true);
forceFirstLetter = GetBoolean(args, FORCE_FIRST_LETTER, true);
culture = GetCulture(args, CULTURE, null);
if (args.Count > 0)
{
throw new ArgumentException("Unknown parameters: " + args);
}
}
/// <summary>
/// Returns as <see cref="CharArraySet"/> from wordFiles, which
/// can be a comma-separated list of filenames
/// </summary>
protected CharArraySet GetWordSet(IResourceLoader loader, string wordFiles, bool ignoreCase)
{
AssureMatchVersion();
IList <string> files = SplitFileNames(wordFiles);
CharArraySet words = null;
if (files.Count > 0)
{
// default stopwords list has 35 or so words, but maybe don't make it that
// big to start
words = new CharArraySet(m_luceneMatchVersion, files.Count * 10, ignoreCase);
foreach (string file in files)
{
var wlist = GetLines(loader, file.Trim());
words.UnionWith(StopFilter.MakeStopSet(m_luceneMatchVersion, wlist, ignoreCase));
}
}
return(words);
}
/// <summary>
/// Returns as <seealso cref="CharArraySet"/> from wordFiles, which
/// can be a comma-separated list of filenames
/// </summary>
protected internal CharArraySet GetWordSet(IResourceLoader loader, string wordFiles, bool ignoreCase)
{
AssureMatchVersion();
IEnumerable<string> files = SplitFileNames(wordFiles);
CharArraySet words = null;
if (files.Count() > 0)
{
// default stopwords list has 35 or so words, but maybe don't make it that
// big to start
words = new CharArraySet(luceneMatchVersion, files.Count() * 10, ignoreCase);
foreach (string file in files)
{
var wlist = GetLines(loader, file.Trim());
words.UnionWith(StopFilter.MakeStopSet(luceneMatchVersion, wlist, ignoreCase));
}
}
return words;
}
public virtual void TestUnionWithCharSequence()
{
var originalValues = new string[] { "sally", "sells", "seashells", "by", "the", "sea", "shore" };
CharArraySet target = new CharArraySet(TEST_VERSION_CURRENT, originalValues, false);
var existingValues = new List<ICharSequence> { new StringCharSequenceWrapper("seashells"), new StringCharSequenceWrapper("sea"), new StringCharSequenceWrapper("shore") };
var mixedExistingNonExistingValues = new List<ICharSequence> { new StringCharSequenceWrapper("true"), new StringCharSequenceWrapper("set"), new StringCharSequenceWrapper("of"), new StringCharSequenceWrapper("unique"), new StringCharSequenceWrapper("values"), new StringCharSequenceWrapper("except"), new StringCharSequenceWrapper("sells") };
// Add existing values
assertFalse(target.UnionWith(existingValues));
assertEquals(7, target.Count);
CollectionAssert.AreEquivalent(originalValues, target);
// Add mixed existing/non-existing values
assertTrue(target.UnionWith(mixedExistingNonExistingValues));
assertEquals(13, target.Count);
CollectionAssert.AreEquivalent(new string[] { "sally", "sells", "seashells", "by", "the", "sea", "shore",
"true", "set", "of", "unique", "values", "except"}, target);
}
public virtual void TestUnionWithObject()
{
var originalValues = new string[] { "sally", "sells", "seashells", "by", "the", "sea", "shore" };
CharArraySet target = new CharArraySet(TEST_VERSION_CURRENT, originalValues, false);
var existingValuesAsObject = new List<object> { "seashells", "sea", "shore" };
var mixedExistingNonExistingValuesAsObject = new List<object> { "true", "set", "of", "unique", "values", "except", "sells" };
var nonExistingMixedTypes = new object[] { true, (byte)55, (short)44, (int)33, (sbyte)22, (long)11, (char)'\n', "hurray", (uint)99, (ulong)89, (ushort)79, new char[] { 't', 'w', 'o' }, new StringCharSequenceWrapper("testing") };
// Add existing values
assertFalse(target.UnionWith(existingValuesAsObject));
assertEquals(7, target.Count);
CollectionAssert.AreEquivalent(originalValues, target);
// Add mixed existing/non-existing values
assertTrue(target.UnionWith(mixedExistingNonExistingValuesAsObject));
assertEquals(13, target.Count);
CollectionAssert.AreEquivalent(new string[] { "sally", "sells", "seashells", "by", "the", "sea", "shore",
"true", "set", "of", "unique", "values", "except"}, target);
target.Clear();
assertEquals(0, target.Count);
assertTrue(target.UnionWith(originalValues.Cast<object>())); // Need to cast here because the .NET return type is void for UnionWith.
CollectionAssert.AreEquivalent(originalValues, target);
// Add mixed types as object
assertTrue(target.UnionWith(nonExistingMixedTypes));
assertEquals(20, target.Count);
assertTrue(target.Contains(true));
assertTrue(target.Contains((byte)55));
assertTrue(target.Contains((short)44));
assertTrue(target.Contains((int)33));
assertTrue(target.Contains((sbyte)22));
assertTrue(target.Contains((long)11));
assertTrue(target.Contains((char)'\n'));
assertTrue(target.Contains("hurray"));
assertTrue(target.Contains((uint)99));
assertTrue(target.Contains((ulong)89));
assertTrue(target.Contains((ushort)79));
assertTrue(target.Contains(new char[] { 't', 'w', 'o' }));
assertTrue(target.Contains(new StringCharSequenceWrapper("testing")));
}
public virtual void TestModifyOnUnmodifiable()
{
CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 10, true);
set.AddAll(TEST_STOP_WORDS);
int size = set.size();
set = CharArraySet.UnmodifiableSet(set);
assertEquals("Set size changed due to unmodifiableSet call", size, set.size());
string NOT_IN_SET = "SirGallahad";
assertFalse("Test String already exists in set", set.Contains(NOT_IN_SET));
try
{
set.Add(NOT_IN_SET.ToCharArray());
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET));
assertEquals("Size of unmodifiable set has changed", size, set.size());
}
try
{
set.add(NOT_IN_SET);
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET));
assertEquals("Size of unmodifiable set has changed", size, set.size());
}
try
{
set.Add(new StringBuilder(NOT_IN_SET));
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET));
assertEquals("Size of unmodifiable set has changed", size, set.size());
}
try
{
set.clear();
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertFalse("Changed unmodifiable set", set.contains(NOT_IN_SET));
assertEquals("Size of unmodifiable set has changed", size, set.size());
}
try
{
set.add(NOT_IN_SET);
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET));
assertEquals("Size of unmodifiable set has changed", size, set.size());
}
// NOTE: This results in a StackOverflow exception. Since this is not a public member of CharArraySet,
// but an extension method for the test fixture (which apparently has a bug), this test is non-critical
//// This test was changed in 3.1, as a contains() call on the given Collection using the "correct" iterator's
//// current key (now a char[]) on a Set<String> would not hit any element of the CAS and therefor never call
//// remove() on the iterator
//try
//{
// set.removeAll(new CharArraySet(TEST_VERSION_CURRENT, TEST_STOP_WORDS, true));
// fail("Modified unmodifiable set");
//}
//catch (System.NotSupportedException)
//{
// // expected
// assertEquals("Size of unmodifiable set has changed", size, set.size());
//}
#region Added for better .NET support
// This test was added for .NET to check the Remove method, since the extension method
// above fails to execute.
try
{
#pragma warning disable 612, 618
set.Remove(TEST_STOP_WORDS[0]);
#pragma warning restore 612, 618
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertEquals("Size of unmodifiable set has changed", size, set.size());
}
#endregion
try
{
set.retainAll(new CharArraySet(TEST_VERSION_CURRENT, new [] { NOT_IN_SET }, true));
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertEquals("Size of unmodifiable set has changed", size, set.size());
}
try
{
set.addAll(new[] { NOT_IN_SET});
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET));
}
// LUCENENET Specific - added to test .NETified UnionWith method
try
{
set.UnionWith(new[] { NOT_IN_SET });
fail("Modified unmodifiable set");
}
catch (System.NotSupportedException)
{
// expected
assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET));
}
for (int i = 0; i < TEST_STOP_WORDS.Length; i++)
{
assertTrue(set.contains(TEST_STOP_WORDS[i]));
}
}