Re: Simple payloads example not working

[michael.boom]

Thanks Eric,

I did create a custom query parser, which seems to work just fine. My only
problem now is the one above, with all docs having the same score for some
reason.
See below the query parserL


import org.apache.commons.lang.StringUtils;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.BooleanClause.Occur;
import org.apache.lucene.search.payloads.AveragePayloadFunction;
import org.apache.lucene.search.payloads.PayloadTermQuery;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.search.QParser;
import org.apache.solr.search.QParserPlugin;
import org.apache.solr.search.SyntaxError;

/**
 * Parser plugin to parse payload queries.
 */
public class PayloadQParserPlugin extends QParserPlugin {

  @Override
  public QParser createParser(String qstr, SolrParams localParams,
      SolrParams params, SolrQueryRequest req) {
    return new PayloadQParser(qstr, localParams, params, req);
  }

  @Override
  public void init(NamedList args) {
  }
}

class PayloadQParser extends QParser {

  public PayloadQParser(String qstr, SolrParams localParams, SolrParams
params,
      SolrQueryRequest req) {
    super(qstr, localParams, params, req);
  }

  @Override
  public Query parse() throws SyntaxError {
    BooleanQuery q = new BooleanQuery();
    String[] nvps = StringUtils.split(qstr, " ");
    for (int i = 0; i < nvps.length; i++) {
      String[] nv = StringUtils.split(nvps[i], ":");
      if (nv[0].startsWith("+")) {
        q.add(new PayloadTermQuery(new Term(nv[0].substring(1), nv[1]), 
          new AveragePayloadFunction(), false), Occur.MUST);
      } else {
        q.add(new PayloadTermQuery(new Term(nv[0], nv[1]), 
          new AveragePayloadFunction(), false), Occur.SHOULD);
      }
    }
    return q;
  }
}



-----
Thanks,
Michael
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