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https://issues.apache.org/jira/browse/LUCENE-7769?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
David Smiley updated LUCENE-7769:
---------------------------------
Description:
UnifiedHighlighter doesn't highlight MTQ wrapped in BoostQuery.
For example, suppose we have a doc with a field 'f' contains data 'lucene'.
UnifiedHighlighter highlights query _(f:lucene*)_, but query _(f:lucene*)^1_
doesn't. Test code:
{code}
String field = "f";
String content = "lucene";
Term term = new Term(field, content);
UnifiedHighlighter highlighter = new UnifiedHighlighter(null, new
StandardAnalyzer());
Query[] queries = {new PrefixQuery(term), new BoostQuery(new PrefixQuery(term),
1.0f)};
Object fragObj;
for (Query query : queries)
{
fragObj = highlighter.highlightWithoutSearcher(field, query, content,
1);
System.out.printf("content=[%s] Query=%s frag=[%s]\n", content,
query, fragObj);
}
{code}
My opinion it's because MultiTermHighlighting.extractAutomata() returns an
empty automaton for BoostQuery. I think, should add some thing like:
{code}
if (query instanceof BoostQuery)
{
list.addAll(Arrays.asList(extractAutomata(((BoostQuery)
query).getQuery(), fieldMatcher, lookInSpan, preRewriteFunc))) ;
}
{code}
to MultiTermHighlighting.extractAutomata()
Thanks.
was:
UnifiedHighlighter doesn't highlight MTQ wrapped in BootsQuery.
For example, suppose we have a doc with a field 'f' contains data 'lucene'.
UnifiedHighlighter highlights query _(f:lucene*)_, but query _(f:lucene*)^1_
doesn't. Test code:
{code}
String field = "f";
String content = "lucene";
Term term = new Term(field, content);
UnifiedHighlighter highlighter = new UnifiedHighlighter(null, new
StandardAnalyzer());
Query[] queries = {new PrefixQuery(term), new BoostQuery(new PrefixQuery(term),
1.0f)};
Object fragObj;
for (Query query : queries)
{
fragObj = highlighter.highlightWithoutSearcher(field, query, content,
1);
System.out.printf("content=[%s] Query=%s frag=[%s]\n", content,
query, fragObj);
}
{code}
My opinion it's because MultiTermHighlighting.extractAutomata() returns an
empty automaton for BoostQuery. I think, should add some thing like:
{code}
if (query instanceof BoostQuery)
{
list.addAll(Arrays.asList(extractAutomata(((BoostQuery)
query).getQuery(), fieldMatcher, lookInSpan, preRewriteFunc))) ;
}
{code}
to MultiTermHighlighting.extractAutomata()
Thanks.
Summary: UnifiedHighlighter doesn't highlight MTQs wrapped in
BoostQuery (was: UnifiedHighlighter doesn't highlight PrefixQuery wrapped in
BootsQuery)
> UnifiedHighlighter doesn't highlight MTQs wrapped in BoostQuery
> ---------------------------------------------------------------
>
> Key: LUCENE-7769
> URL: https://issues.apache.org/jira/browse/LUCENE-7769
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/highlighter
> Affects Versions: 6.5, 6.4.2
> Reporter: Dmitry Malinin
>
> UnifiedHighlighter doesn't highlight MTQ wrapped in BoostQuery.
> For example, suppose we have a doc with a field 'f' contains data 'lucene'.
> UnifiedHighlighter highlights query _(f:lucene*)_, but query _(f:lucene*)^1_
> doesn't. Test code:
> {code}
> String field = "f";
> String content = "lucene";
> Term term = new Term(field, content);
> UnifiedHighlighter highlighter = new UnifiedHighlighter(null, new
> StandardAnalyzer());
> Query[] queries = {new PrefixQuery(term), new BoostQuery(new
> PrefixQuery(term), 1.0f)};
> Object fragObj;
> for (Query query : queries)
> {
> fragObj = highlighter.highlightWithoutSearcher(field, query, content,
> 1);
> System.out.printf("content=[%s] Query=%s frag=[%s]\n", content,
> query, fragObj);
> }
> {code}
> My opinion it's because MultiTermHighlighting.extractAutomata() returns an
> empty automaton for BoostQuery. I think, should add some thing like:
> {code}
> if (query instanceof BoostQuery)
> {
> list.addAll(Arrays.asList(extractAutomata(((BoostQuery)
> query).getQuery(), fieldMatcher, lookInSpan, preRewriteFunc))) ;
> }
> {code}
> to MultiTermHighlighting.extractAutomata()
> Thanks.
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