static ConfidenceValue getValueForPath()

in sdk-java/src/main/java/com/spotify/confidence/ConfidenceUtils.java [19:51]

• 27 lines of code
• 4 McCabe index (conditional complexity)

  static ConfidenceValue getValueForPath(List<String> path, ConfidenceValue fullValue)
      throws ValueNotFound {
    ConfidenceValue value = fullValue;
    for (String fieldName : path) {
      final Struct structure = value.asStruct();
      if (structure == null) {
        // value's inner object actually is no structure
        log.warn(
            "Illegal attempt to derive field '{}' on non-structure value '{}'", fieldName, value);
        throw new ValueNotFound(
            String.format(
                "Illegal attempt to derive field '%s' on non-structure value '%s'",
                fieldName, value));
      }

      value = structure.get(fieldName);

      if (value == null) {
        // we know that null indicates absence of a proper value because intended nulls would be an
        // instance of type Value
        log.warn(
            "Illegal attempt to derive non-existing field '{}' on structure value '{}'",
            fieldName,
            structure);
        throw new ValueNotFound(
            String.format(
                "Illegal attempt to derive non-existing field '%s' on structure value '%s'",
                fieldName, structure));
      }
    }

    return value;
  }