Yes, it is interesting one because I'm going to create multilingual
index! :) Thanks a lot.
It leads me to new idea - what about creating new service (request
handler) of type "do-highlight" (instead of "do-search"). Adding
something like HighlightRequest to Solr API and
SolrServer.highlight(HighlightRequest req) Solr Server API. Maybe, there
is not the right place for these suggestions :)
However I'm still looking for easier and faster solution...
Petr
Erik Hatcher wrote:
Peter - interestingly, a related issue was opened not long before you
asked this question: http://issues.apache.org/jira/browse/SOLR-1105 -
not quite what you're looking for, but getting warmer.
Erik
On Apr 8, 2009, at 11:33 AM, Petr Gola wrote:
Hi everyone,
I'm excited with Solr. It is exactly what we wanted to write by
ourself some time ago. We've already started but now we want to use
Solr because of many solved "enterprise" features. I have to say It
is great project! I've downloaded Solr 1.3 + SolrJ and have tried to
use as embedded one. Everything works fine but one thing is missing -
or I can not find it.
In pure Lucene, I can do highlighting after searching. Field values
are not stored so I fetch these from database and make highlighting.
In Solr, I can't find similar feature. I can do highlighting only on
STORED fields during query like this:
SolrQuery query = new SolrQuery()
.setQuery(queryString)
.addField(IFIELD_SCORE)
.addHighlightField(IFIELD_TITLE)
.addHighlightField(IFIELD_CONTENT)
.addHighlightField(IFIELD_SUBJECT)
.setHighlight(true)
.setHighlightFragsize(100)
.setHighlightSnippets(1)
.setHighlightSimplePre("<b>")
.setHighlightSimplePost("</b>");
QueryResponse response = solrServer.query(query);
Map<String, Map<String, List<String>>> highlighting =
response.getHighlighting();
If the fields is NOT STORED, highlighting does not work (it is
logical but there is no way to provide field values for highlighting)
But I want to do something like this (I've used this in pure Lucene):
Query queryRewrited = query.rewrite(indexSearcher.getIndexReader());
QueryScorer framgmentScorer = new QueryScorer(queryRewrited);
SimpleHTMLEncoder simpleHTMLEncoder = new SimpleHTMLEncoder();
SimpleHTMLFormatter simpleHTMLFormatter = new
SimpleHTMLFormatter("<span class='highlight'>", "</span>");
Highlighter highlighter = new Highlighter(simpleHTMLFormatter,
simpleHTMLEncoder, framgmentScorer);
highlighter.setTextFragmenter(new NullFragmenter());
...
private String doHighlight(String content, String fieldId,
Highlighter highlighter) {
String hlContent = content;
hlContent = highlighter.getBestFragment(analyzer, fieldId,
hlContent);
return hlContent;
}
Is there any way to do this? I've googled it for last two nights... I
haven't found way in to retreive
1) rewrited Query
2) QueryScorer
3) Solr field type and their Analyzers (both, index+query)
Thanks in advance.
Petr
