Simple Custom Similarity for Payloads (Solr/Lucene)

CustomSolrSimilarity.java

import org.apache.lucene.analysis.payloads.PayloadHelper;
import org.apache.lucene.search.similarities.DefaultSimilarity;
import org.apache.lucene.util.BytesRef;

public class CustomSolrSimilarity extends DefaultSimilarity {
    
    @Override
    public float scorePayload(int doc, int start, int end, BytesRef payload) {
        if (payload != null) {
            return PayloadHelper.decodeFloat(payload.bytes);;
        }
        return 1.0f;
    }
}