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From "Pablo Queixalos (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-3150) NPE when facetting using facet.prefix on an "empty" field
Date Tue, 21 Feb 2012 17:26:44 GMT
NPE when facetting using facet.prefix on an "empty" field
---------------------------------------------------------

                 Key: SOLR-3150
                 URL: https://issues.apache.org/jira/browse/SOLR-3150
             Project: Solr
          Issue Type: Bug
    Affects Versions: 4.0
            Reporter: Pablo Queixalos
             Fix For: 4.0


FacetComponent works fine on empty fields but crashes if facet.prefix parameter is set.

Looking at the code : getOrdTermsEnum(..) returns null if no value is found on the field but
_getCounts(...)_ does not checks if _TermsEnum te_ is null or not.

{code:java|title=UnInvertedField.java (getCounts(..))}
      TermsEnum te = getOrdTermsEnum(searcher.getAtomicReader());
      if (prefix != null && prefix.length() > 0) {
        final BytesRef prefixBr = new BytesRef(prefix);
232:    if (te.seekCeil(prefixBr, true) == TermsEnum.SeekStatus.END) {
          startTerm = numTermsInField;
        } else {
          startTerm = (int) te.ord();
        }
        prefixBr.append(UnicodeUtil.BIG_TERM);
        if (te.seekCeil(prefixBr, true) == TermsEnum.SeekStatus.END) {
          endTerm = numTermsInField;
        } else {
          endTerm = (int) te.ord();
        }
      }
{code}

{code}
java.lang.NullPointerException
	at org.apache.solr.request.UnInvertedField.getCounts(UnInvertedField.java:232)
	at org.apache.solr.request.SimpleFacets.getTermCounts(SimpleFacets.java:299)
	at org.apache.solr.request.SimpleFacets.getFacetFieldCounts(SimpleFacets.java:354)
	at org.apache.solr.request.SimpleFacets.getFacetCounts(SimpleFacets.java:207)
	at org.apache.solr.handler.component.FacetComponent.process(FacetComponent.java:81)
{code}

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