V computeIfNull()

in common/src/main/java/co/elastic/otel/common/SpanValueStorage.java [87:109]

• 23 lines of code
• 5 McCabe index (conditional complexity)

  <V> V computeIfNull(SpanValue<V> key, Supplier<V> valueInitializer) {
    int index = key.index;
    if (length() > index) {
      V currentValue = (V) get(index);
      if (currentValue != null) {
        return currentValue;
      }
      compareAndSet(index, null, valueInitializer.get());
      return (V) get(index);
    } else {
      Map<SpanValue<?>, Object> sparseStorage = getSparseValuesMap(true);
      V currentValue = (V) sparseStorage.get(key);
      if (currentValue != null) {
        return currentValue;
      }
      V newValue = valueInitializer.get();
      if (newValue == null) {
        return null;
      }
      sparseStorage.putIfAbsent(key, newValue);
      return (V) sparseStorage.get(key);
    }
  }