/**
* Create a CommonGramsFilter and wrap it with a CommonGramsQueryFilter
*/
public override TokenStream create(TokenStream input)
{
CommonGramsFilter commonGrams = new CommonGramsFilter(input, commonWords,
ignoreCase);
CommonGramsQueryFilter commonGramsQuery = new CommonGramsQueryFilter(
commonGrams);
return(commonGramsQuery);
}
public void inform(ResourceLoader loader)
{
string commonWordFiles = (string)args.get("words");
ignoreCase = getBoolean("ignoreCase", false);
if (commonWordFiles != null)
{
try {
List /*<String>*/ files = StrUtils.splitFileNames(commonWordFiles);
if (commonWords == null && files.size() > 0)
{
// default stopwords list has 35 or so words, but maybe don't make it
// that big to start
commonWords = new CharArraySet(files.size() * 10, ignoreCase);
}
for (var iter = files.iterator(); iter.hasNext();)
{
string file = (string)iter.next();
List /*<String>*/ wlist = loader.getLines(file.Trim());
// TODO: once StopFilter.makeStopSet(List) method is available, switch
// to using that so we can avoid a toArray() call
commonWords.addAll(CommonGramsFilter.makeCommonSet((string[])wlist
.toArray(new string[0]), ignoreCase));
}
} catch (IOException e) {
throw new System.ApplicationException("Unexpected exception", e);
}
}
else
{
#pragma warning disable 612
commonWords = CommonGramsFilter.makeCommonSet(
StopAnalyzer.ENGLISH_STOP_WORDS, ignoreCase);
#pragma warning restore 612
}
}
/**
* Constructor
*
* @param input must be a CommonGramsFilter!
*
*/
public CommonGramsQueryFilter(CommonGramsFilter input) : base(input)
{
prev = new Token();
}