static ArrayList fetchStickerPacks()

in Android/app/src/main/java/com/example/samplestickerapp/StickerPackLoader.java [49:72]

• 24 lines of code
• 6 McCabe index (conditional complexity)

    static ArrayList<StickerPack> fetchStickerPacks(Context context) throws IllegalStateException {
        final Cursor cursor = context.getContentResolver().query(StickerContentProvider.AUTHORITY_URI, null, null, null, null);
        if (cursor == null) {
            throw new IllegalStateException("could not fetch from content provider, " + BuildConfig.CONTENT_PROVIDER_AUTHORITY);
        }
        HashSet<String> identifierSet = new HashSet<>();
        final ArrayList<StickerPack> stickerPackList = fetchFromContentProvider(cursor);
        for (StickerPack stickerPack : stickerPackList) {
            if (identifierSet.contains(stickerPack.identifier)) {
                throw new IllegalStateException("sticker pack identifiers should be unique, there are more than one pack with identifier:" + stickerPack.identifier);
            } else {
                identifierSet.add(stickerPack.identifier);
            }
        }
        if (stickerPackList.isEmpty()) {
            throw new IllegalStateException("There should be at least one sticker pack in the app");
        }
        for (StickerPack stickerPack : stickerPackList) {
            final List<Sticker> stickers = getStickersForPack(context, stickerPack);
            stickerPack.setStickers(stickers);
            StickerPackValidator.verifyStickerPackValidity(context, stickerPack);
        }
        return stickerPackList;
    }