public ObjectInspector init()

in src/main/java/org/apache/datasketches/hive/tuple/DataToArrayOfDoublesSketchUDAF.java [107:149]
38 lines of code
10 McCabe index (conditional complexity)

    public ObjectInspector init(final Mode mode, final ObjectInspector[] parameters) throws HiveException {
      super.init(mode, parameters);
      this.mode_ = mode;
      if ((mode == Mode.PARTIAL1) || (mode == Mode.COMPLETE)) {
        // input is original data
        this.keyInspector_ = (PrimitiveObjectInspector) parameters[0];
        this.numValues_ = 0;
        while ((this.numValues_ + 1) < parameters.length) {
          if (((PrimitiveObjectInspector) parameters[this.numValues_ + 1]).getPrimitiveCategory()
              != PrimitiveCategory.DOUBLE) {
            break;
          }
          this.numValues_++;
        }
        this.valuesInspectors_ = new PrimitiveObjectInspector[this.numValues_];
        for (int i = 0; i < this.numValues_; i++) {
          this.valuesInspectors_[i] = (PrimitiveObjectInspector) parameters[i + 1];
        }
        if (parameters.length > (this.numValues_ + 1)) {
          this.nominalNumEntriesInspector_ = (PrimitiveObjectInspector) parameters[this.numValues_ + 1];
        }
        if (parameters.length > (this.numValues_ + 2)) {
          this.samplingProbabilityInspector_ = (PrimitiveObjectInspector) parameters[this.numValues_ + 2];
        }
      } else {
        // input for PARTIAL2 and FINAL is the output from PARTIAL1
        this.intermediateInspector_ = (StructObjectInspector) parameters[0];
      }

      if ((mode == Mode.PARTIAL1) || (mode == Mode.PARTIAL2)) {
        // intermediate results need to include the the nominal number of entries and number of values
        return ObjectInspectorFactory.getStandardStructObjectInspector(
          Arrays.asList(NOMINAL_NUM_ENTRIES_FIELD, NUM_VALUES_FIELD, SKETCH_FIELD),
          Arrays.asList(
            PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.INT),
            PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.INT),
            PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.BINARY)
          )
        );
      }
      // final results include just the sketch
      return PrimitiveObjectInspectorFactory.getPrimitiveWritableObjectInspector(PrimitiveCategory.BINARY);
    }