Problem with getting tv.tf_idf values.

[Silvia Suárez <ss...@anpro21.com>]

Dear all,

I'm trying to get tv.tf_idf values from my Solr documents into the
termvector. I am using SolrJ.

However it is not working.

I'm setting the values to true (tv.tf_idf) in my search:

 public static QueryResponse doQuery(SolrServer server, String queryEnt,
String myCollection)
    throws SolrServerException {
      SolrQuery solrQuery = new SolrQuery();
      solrQuery.setQuery(queryEnt);
    solrQuery.set("collectionName", myCollection);
        solrQuery.addHighlightField("texto")
                 .addHighlightField("titular")
                 .setHighlightSnippets(200000)
                 .setHighlightFragsize(0);
        solrQuery.set("hl.useFastVectorHighlighter", true);
        solrQuery.set("hl.fragListBuilder", "single");
        solrQuery.set("tv.fl", "titular");
        solrQuery.set("tv.tf", true);
        solrQuery.set("tv.tf_idf", true);
        solrQuery.set("hl.fragmentsBuilder", "colored");
        solrQuery.setHighlightSimplePre("<span class=\"item\">");
        solrQuery.setHighlightSimplePost("</span>");
      solrQuery.set("fl", "c_noticia titular texto");
    solrQuery.setStart(start);
    solrQuery.setRows(nbDocuments);

 return server.query(solrQuery);
    }

and then I am using the code in:
http://stackoverflow.com/questions/8977852/how-to-parse-the-termvectorcomponent-response-to-which-java-object,
to get the values:

public static void printOr(QueryResponse response) throws
SolrServerException, ParseException, IOException
 {
Iterator<Entry<String, Object>> termVectors = ((NamedList)
response.getResponse().get("termVectors")).iterator();
while(termVectors.hasNext()){ Entry<String, Object> docTermVector =
termVectors.next(); for(Iterator<Entry<String, Object>> fi =
((NamedList)docTermVector.getValue()).iterator(); fi.hasNext(); ){
Entry<String, Object> fieldEntry = fi.next();
if(fieldEntry.getKey().equals("contents")){ for(Iterator<Entry<String,
Object>> tvInfoIt = ((NamedList)fieldEntry.getValue()).iterator();
tvInfoIt.hasNext(); ){ Entry<String, Object> tvInfo = tvInfoIt.next();
NamedList tv = (NamedList) tvInfo.getValue(); System.out.println("Vector
Info: " + tvInfo.getKey() + " tf: " + tv.get("tf") + " df: " + tv.get("df")
+ " tf-idf: " + tv.get("tf-idf")); } } } }


}


But i'm having this error:

Exception in thread "main" java.lang.ClassCastException: java.lang.String
cannot be cast to org.apache.solr.common.util.NamedList

Could anybody helpme please with this problem?

thanks a lot in advance.

Silvia