public MMappedStringPack()

in library/src/main/java/com/whatsapp/stringpacks/MMappedStringPack.java [27:76]
40 lines of code
8 McCabe index (conditional complexity)

  public MMappedStringPack(
      @NonNull List<String> parentLocales, @NonNull MappedByteBuffer mappedPackFile) {
    mappedByteBuffer = mappedPackFile;

    final int numLocales = read16BitsFrom(0);
    final int startOfLocaleData = read32BitsFrom(2);
    final byte encodingId = mappedByteBuffer.get(6);

    if (encodingId >= StringPackData.ENCODINGS.length) {
      SpLog.e("MMappedStringPack: unrecognized encoding");
    }

    encoding = StringPackData.ENCODINGS[encodingId];
    startOfStringData = read32BitsFrom(7);

    if (parentLocales.isEmpty()) {
      SpLog.e("MMappedStringPack: parentLocales is empty");
      return;
    }

    int caret = StringPackData.HEADER_SIZE;
    int numMatches = 0;
    final int[] translationLocations = new int[parentLocales.size()];
    for (int i = 0; i < numLocales; i++) {
      final String resourceLocale = readLocaleFrom(caret);
      final int listIndex = parentLocales.indexOf(resourceLocale);
      if (listIndex != -1) { // Matching locale found
        numMatches++;
        translationLocations[listIndex] = caret; // Save the caret position for the match
        if (numMatches >= parentLocales.size()) {
          // No need to continue. We've already seen the maximum number of matches.
          break;
        }
      }
      caret += StringPackData.LOCALE_CODE_SIZE + 4;
    }

    for (int translationLocation : translationLocations) {
      if (translationLocation == 0) {
        continue;
      }
      final int headerStart;

      mappedByteBuffer.position(translationLocation + StringPackData.LOCALE_CODE_SIZE);
      headerStart = read32BitsFrom(mappedByteBuffer.position());

      // We will map the translation location here from less specific to more specific
      mapTranslations(startOfLocaleData, headerStart);
    }
  }