gistfile1.java

/*
Term payload similarity
*/
public class TermPayloadSimilarity extends DefaultSimilarity{
    @Override
    public float scorePayload(int docId, String fieldName, int start, int end, byte[] payload, int offset, int length) {
        if(payload != null){
            return PayloadHelper.decodeFloat(payload);
        }
        else{
            return super.scorePayload(docId, fieldName, start, end, payload, offset, length);
        }

    }
}



/*
Provider I sed in index configuration
*/
public class TermpayloadSimilarityProvider extends AbstractSimilarityProvider<TermPayloadSimilarity>{
    TermPayloadSimilarity similarity;
    @Inject
    public TermpayloadSimilarityProvider(Index index, @IndexSettings Settings indexSettings, String name) {
        super(index, indexSettings, name);
        similarity = new TermPayloadSimilarity();
    }

    @Override
    public TermPayloadSimilarity get() {
        return similarity;
    }
}