Hello,
I'm trying to add a field that counts the number of terms in a document to
my schema. So far I've been computing this value at query-time. Is there how
I could compute this once only and store the field?
final SolrIndexSearcher searcher = request.getSearcher();
final SolrIndexReader reader = searcher.getReader();
final String content = "content";
final byte[] norms = reader.norms(content);
final int[] docLengths;
if (norms == null) {
docLengths = null;
} else {
docLengths = new int[norms.length];
int i = 0;
for (byte b : norms) {
float docNorm = searcher.getSimilarity().decodeNormValue(b);
int docLength = 0;
if (docNorm != 0) {
docLength = (int) (1 / docNorm); //reciprocal
}
docLengths[i++] = docLength;
}
...
final NumericField docLenNormField = new
NumericField(TestQueryResponseWriter.DOC_LENGHT);
docLenNormField.setIntValue(docLengths[id]);
doc.add(docLenNormField);
--
Regards,
K. Gabriele
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