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From ki <kirsten_gru...@web.de>
Subject Lucene Highlighter linkage Error
Date Wed, 25 Jul 2007 13:18:39 GMT

Hello!

I am working with Tomcat. I have put the Lucene highlighter.jar in the
folder lib. And I have created an extra css, where I say that the background
color has to be yellow. The searchword has to be highlighted know.
I have got a dataTable in which the result of the following Lucene method is
loaded:

[code]
public void search(String q,  File index, String [] fields, ArrayList
subresult, int numresults)  throws Exception {
 
 
		    	Directory fsDir = FSDirectory.getDirectory(index, false);
		    	IndexSearcher is = new IndexSearcher(fsDir);
 
				Analyzer analyzer = new StandardAnalyzer();
				Fragmenter fragmenter = new SimpleFragmenter(100);
				QueryParser queryparser = new MultiFieldQueryParser (fields, analyzer);
						Query query = queryparser.parse(q);
						Hits hits = is.search(query);
						IndexReader reader=null;
						query=query.rewrite(reader);
						QueryScorer scorer = new QueryScorer(query);

	SimpleHTMLFormatter formatter= new SimpleHTMLFormatter("","");
						Highlighter high = new Highlighter(formatter,scorer);
						high.setTextFragmenter(fragmenter); 
						numresults = numresults == -1 || numresults > hits.length() ?
hits.length() : numresults;
						String rating = "";
						for (int i = 0; i <numresults; i++) {
							 if (hits.score(i)>schwelli){
							 	float f = hits.score(i);
							 	if (0.9f <= f) {rating = "******";}
							 	else if (0.8f <= f && f<0.9f){rating = "*****";}
							 	else if (0.7f <= f && f<0.8f){rating = "****";}
							 	else if (0.6f <= f && f<0.7f){rating = "***";}
							 	else if (0.5f <= f && f<0.6f){rating = "**";}
							 	else if (f <= 0.5f){rating = "*";}
								 Document doc = hits.doc(i);
								 String abstracts =doc.get("ABSTRACTS");
								 String title = doc.get("TITLE");
								 TokenStream abstract_stream = analyzer.tokenStream(q, new
StringReader(abstracts));
								 TokenStream title_straem = analyzer.tokenStream(q, new
StringReader(title));
								String fragment_abstract =
high.getBestFragments(abstract_stream,abstracts, 5, "...");
								 String fragment_title = high.getBestFragments(title_straem,title,
5, "...");
								 if(fragment_title.length()==0){
									 	 setAusgabeTitle(doc.get("TITLE"));
								 }else{
									 	 setAusgabeTitle(fragment_title);
								 }
								  if(fragment_abstract.length()==0){
									 	 setAusgabeAbstract(doc.get("ABSTRACTS"));
								 }else{
									 	 setAusgabeAbstract(fragment_abstract);
								 }
								  
								
//list.add(i+1+"\t"+q+"\t"+doc.get(entry_medline)+"\t"+hits.score(i)+"\t"+abstract_stream+"\t"+title_straem+"\t"+"MEDLINE");
							     
							     /*int No = i;
							     subresult.add((new Integer(No)).toString());*/
							     subresult.add(doc.get(entry_medline));
							     subresult.add("No Id");
							     subresult.add("No Id");
							     float sco = hits.score(i);
		    				     subresult.add(rating);//(hits.score(i));
		    				     subresult.add(abstract_stream);
		    				     subresult.add(title_straem);
		    				     subresult.add("No hits for this index");
		    				     subresult.add("MEDLINE");
							}
					}
							 	
			}
[code]
But I get the following error.

Error:

javax.servlet.ServletException: #{suggestBox.Search}:
javax.faces.el.EvaluationException: java.lang.LinkageError: Class
org/apache/lucene/search/Query violates loader constraints
javax.faces.webapp.FacesServlet.service(FacesServlet.java:209)
org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.j
ava:96)
org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)

Does someone know what I am doing wrong?
-- 
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