public CpuFrequencyMetrics sum()

in metrics/src/main/java/com/facebook/battery/metrics/cpu/CpuFrequencyMetrics.java [42:71]

• 26 lines of code
• 7 McCabe index (conditional complexity)

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

    if (b == null) {
      output.set(this);
    } else {
      for (int i = 0; i < timeInStateS.length; i++) {
        SparseIntArray aCore = timeInStateS[i];
        SparseIntArray bCore = b.timeInStateS[i];
        SparseIntArray outputCore = output.timeInStateS[i];

        for (int j = 0; j < aCore.size(); j++) {
          int frequency = aCore.keyAt(j);
          outputCore.put(frequency, aCore.valueAt(j) + bCore.get(frequency, 0));
        }

        for (int j = 0; j < bCore.size(); j++) {
          int frequency = bCore.keyAt(j);
          if (aCore.indexOfKey(frequency) < 0) {
            outputCore.put(frequency, bCore.valueAt(j));
          }
        }
      }
    }

    return output;
  }