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Posted to dev@lucene.apache.org by "Dmitry Malinin (JIRA)" <ji...@apache.org> on 2017/04/07 08:35:41 UTC
[jira] [Updated] (LUCENE-7769) UnifiedHighlighter doesn't highlight
PrefixQuery wrapped in BootsQuery
[ https://issues.apache.org/jira/browse/LUCENE-7769?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitry Malinin updated LUCENE-7769:
-----------------------------------
Description:
{noformat}
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:
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);
}
My opinion is because MultiTermHighlighting.extractAutomata() returns an empty automaton for BoostQuery. I think, should add some thing like:
if (query instanceof BoostQuery) {
list.addAll(Arrays.asList(extractAutomata(((BoostQuery) query).getQuery(), fieldMatcher, lookInSpan,
preRewriteFunc))) ; }
to MultiTermHighlighting.extractAutomata()
Thanks.
{noformat}
was:
{noformat}
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:
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);
}
My opinion is because MultiTermHighlighting.extractAutomata() returns an empty automaton for BoostQuery. I think, should add some thing like:
if (query instanceof BoostQuery) {
list.addAll(Arrays.asList(extractAutomata(((BoostQuery) query).getQuery(), fieldMatcher, lookInSpan,
preRewriteFunc))) ; }
to MultiTermHighlighting.extractAutomata()
Thanks.
{noformat}
> UnifiedHighlighter doesn't highlight PrefixQuery wrapped in BootsQuery
> ----------------------------------------------------------------------
>
> 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
>
> {noformat}
> 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:
> 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);
> }
> My opinion is because MultiTermHighlighting.extractAutomata() returns an empty automaton for BoostQuery. I think, should add some thing like:
> if (query instanceof BoostQuery) {
> list.addAll(Arrays.asList(extractAutomata(((BoostQuery) query).getQuery(), fieldMatcher, lookInSpan,
> preRewriteFunc))) ; }
> to MultiTermHighlighting.extractAutomata()
> Thanks.
> {noformat}
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