public WakeLockMetrics sum()

in metrics/src/main/java/com/facebook/battery/metrics/wakelock/WakeLockMetrics.java [48:76]

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

  public WakeLockMetrics sum(@Nullable WakeLockMetrics b, @Nullable WakeLockMetrics output) {
    if (output == null) {
      output = new WakeLockMetrics(isAttributionEnabled);
    }

    if (b == null) {
      output.set(this);
    } else {
      output.heldTimeMs = heldTimeMs + b.heldTimeMs;
      output.acquiredCount = acquiredCount + b.acquiredCount;
      if (output.isAttributionEnabled) {
        output.tagTimeMs.clear();
        for (int i = 0, size = tagTimeMs.size(); i < size; i++) {
          String tag = tagTimeMs.keyAt(i);
          Long currentTimeMs = b.tagTimeMs.get(tag);
          output.tagTimeMs.put(
              tag, tagTimeMs.valueAt(i) + (currentTimeMs == null ? 0 : currentTimeMs));
        }
        for (int i = 0, size = b.tagTimeMs.size(); i < size; i++) {
          String tag = b.tagTimeMs.keyAt(i);
          if (tagTimeMs.get(tag) == null) {
            output.tagTimeMs.put(tag, b.tagTimeMs.valueAt(i));
          }
        }
      }
    }

    return output;
  }