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https://issues.apache.org/jira/browse/LUCENE-3113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034956#comment-13034956
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Steven Rowe commented on LUCENE-3113:
-------------------------------------
+1
bq. the ShingleAnalyzerWrapper was double-resetting
Your patch just removes the reset call:
{noformat}
@@ -201,7 +201,6 @@
TokenStream result = defaultAnalyzer.reusableTokenStream(fieldName,
reader);
if (result == streams.wrapped) {
/* the wrapped analyzer reused the stream */
- streams.shingle.reset();
} else {
/* the wrapped analyzer did not, create a new shingle around the new
one */
streams.wrapped = result;
{noformat}
but inverting the condition would read better:
{noformat}
TokenStream result = defaultAnalyzer.reusableTokenStream(fieldName,
reader);
- if (result == streams.wrapped) {
- /* the wrapped analyzer reused the stream */
- streams.shingle.reset();
- } else {
- /* the wrapped analyzer did not, create a new shingle around the new
one */
+ if (result != streams.wrapped) {
+ // The wrapped analyzer did not reuse the stream.
+ // Wrap the new stream with a new ShingleFilter.
streams.wrapped = result;
streams.shingle = new ShingleFilter(streams.wrapped);
}
{noformat}
> fix analyzer bugs found by MockTokenizer
> ----------------------------------------
>
> Key: LUCENE-3113
> URL: https://issues.apache.org/jira/browse/LUCENE-3113
> Project: Lucene - Java
> Issue Type: Bug
> Components: modules/analysis
> Reporter: Robert Muir
> Fix For: 3.2, 4.0
>
> Attachments: LUCENE-3113.patch, LUCENE-3113.patch
>
>
> In LUCENE-3064, we beefed up MockTokenizer with assertions, and I've switched
> over the analysis tests to use MockTokenizer for better coverage.
> However, this found a few bugs (one of which is LUCENE-3106):
> * incrementToken() after it returns false in CommonGramsQueryFilter,
> HyphenatedWordsFilter, ShingleFilter, SynonymFilter
> * missing end() implementation for PrefixAwareTokenFilter
> * double reset() in QueryAutoStopWordAnalyzer and ReusableAnalyzerBase
> * missing correctOffset()s in MockTokenizer itself.
> I think it would be nice to just fix all the bugs on one issue... I've fixed
> everything except Shingle and Synonym
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