Thanks for the quick reply. I'll be implementing this in the next couple of days. Appreciate it!
Jeff -----Original Message----- From: Stephan Spat [mailto:[EMAIL PROTECTED] Sent: Monday, November 20, 2006 8:43 AM To: java-user@lucene.apache.org Subject: Re: Q: Highlighter + Search symbols "*, ?, ~" Hey Jeff! Storey, Jeff schrieb: > Could you explain what you did for your solution? This is a problem I'm currently facing as well. But, for example, if the user searches for "head~" would you also be able to highlight "read" and "dead" if they are returned or just "head" without the ~. > It is necessary to give a "native" query to the QueryScorer (only Boolean operators). Therefore I just took the an IndexWriter object and used its public method rewrite(query). Here the code: QueryParser queryParser = new QueryParser( ConstantsRetrieval.FIELD_DOC_CONTENT, new EMRAnalyzer()); String formattedText = null; try { // for the usage of highlighting with wildcards Query query = indexSearcher.rewrite(queryParser.parse(searchParameter.getUserQuery())) ; QueryScorer queryScorer = new QueryScorer(query); //logger.debug("User Query: " + query.toString()); SimpleHTMLFormatter formatter = new SimpleHTMLFormatter( "<span class=\"highlight\">", "</span>"); Highlighter highlighter = new Highlighter(formatter, queryScorer); Fragmenter fragmenter = new SimpleFragmenter(100); highlighter.setTextFragmenter(fragmenter); TokenStream tokenStream = new EMRAnalyzer(). tokenStream(ConstantsRetrieval.FIELD_DOC_CONTENT, new StringReader(text)); formattedText = highlighter.getBestFragments(tokenStream, text, 5, "..."); //logger.debug("Formatted Text: \n" + formattedText); FileWriter writer = new FileWriter( "D:/development/iremr/text/highlightedDoc.html"); writer.write("<html>"); writer.write("<style>\n" + ".highlight {\n" + " background: yellow;\n" + "}\n" + "</style>"); writer.write("<body>"); writer.write(formattedText); writer.write("</body></html>"); writer.close(); } catch (ParseException e) { logger.error("Not able to parse query\n" + e.getMessage()); return null; } catch (IOException e) { logger.error("IO-Exception in highlighting" + e.getMessage()); return null; } Stephan --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
