public Boolean visitConvertExpression()

in contrib/storage-mongo/src/main/java/org/apache/drill/exec/store/mongo/MongoCompareFunctionProcessor.java [113:177]
63 lines of code
35 McCabe index (conditional complexity)

  public Boolean visitConvertExpression(ConvertExpression e,
      LogicalExpression valueArg) throws RuntimeException {
    if (ConvertExpression.CONVERT_FROM.equals(e.getConvertFunction())
        && e.getInput() instanceof SchemaPath) {
      String encodingType = e.getEncodingType();
      switch (encodingType) {
      case "INT_BE":
      case "INT":
      case "UINT_BE":
      case "UINT":
      case "UINT4_BE":
      case "UINT4":
        if (valueArg instanceof IntExpression
            && (isEqualityFn || encodingType.startsWith("U"))) {
          this.value = ((IntExpression) valueArg).getInt();
        }
        break;
      case "BIGINT_BE":
      case "BIGINT":
      case "UINT8_BE":
      case "UINT8":
        if (valueArg instanceof LongExpression
            && (isEqualityFn || encodingType.startsWith("U"))) {
          this.value = ((LongExpression) valueArg).getLong();
        }
        break;
      case "FLOAT":
        if (valueArg instanceof FloatExpression && isEqualityFn) {
          this.value = ((FloatExpression) valueArg).getFloat();
        }
        break;
      case "DOUBLE":
        if (valueArg instanceof DoubleExpression && isEqualityFn) {
          this.value = ((DoubleExpression) valueArg).getDouble();
        }
        break;
      case "TIME_EPOCH":
      case "TIME_EPOCH_BE":
        if (valueArg instanceof TimeExpression) {
          this.value = ((TimeExpression) valueArg).getTime();
        }
        break;
      case "DATE_EPOCH":
      case "DATE_EPOCH_BE":
        if (valueArg instanceof DateExpression) {
          this.value = ((DateExpression) valueArg).getDate();
        }
        break;
      case "BOOLEAN_BYTE":
        if (valueArg instanceof BooleanExpression) {
          this.value = ((BooleanExpression) valueArg).getBoolean();
        }
        break;
      case "UTF8":
        // let visitSchemaPath() handle this.
        return e.getInput().accept(this, valueArg);
      }

      if (value != null) {
        this.path = (SchemaPath) e.getInput();
        return true;
      }
    }
    return false;
  }