public Tuple exec()

in src/main/java/org/apache/datasketches/pig/theta/JaccardSimilarity.java [115:136]

• 19 lines of code
• 3 McCabe index (conditional complexity)

  public Tuple exec(final Tuple inputTuple) throws IOException {
    //The exec is a stateless function.  It operates on the input and returns a result.
    // It can only call static functions.
    final Object objA = extractFieldAtIndex(inputTuple, 0);
    Sketch sketchA = null;
    if (objA != null) {
      final DataByteArray dbaA = (DataByteArray)objA;
      final Memory srcMem = Memory.wrap(dbaA.get());
      sketchA = Sketch.wrap(srcMem, this.seed);
    }
    final Object objB = extractFieldAtIndex(inputTuple, 1);
    Sketch sketchB = null;
    if (objB != null) {
      final DataByteArray dbaB = (DataByteArray)objB;
      final Memory srcMem = Memory.wrap(dbaB.get());
      sketchB = Sketch.wrap(srcMem, this.seed);
    }

    final double[] jaccardTupple =
        org.apache.datasketches.theta.JaccardSimilarity.jaccard(sketchA, sketchB);
    return doubleArrayToTuple(jaccardTupple);
  }