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public static void getShops(Favorite favoriteBrands,
			Favorite favoriteShops, StationItem station,
			WorkingTimeFilter workTimeFilter, boolean[] filter, String keyword,
			GeoLocationPointItem userLocation,
			GeoLocationPointItem searchLocation, String catalogId,
			String netId, String page, String pageSize, String api,
			AsyncTask callback, ConnectionWatcher watcher) {
//...
//упаковка кучи параметров


		boolean emptyFavBrands = false;
		if (favoriteBrands != null) {
			int i = 0;
			for (FavoriteItem item : favoriteBrands) {
				String id = item.getId();
				Log.i(tag, "addFaforiteBrand " + id);
				params.add(new BasicNameValuePair(PARAMS_FAVORITE_BRAND_ID
						+ "[" + i + "]", id));
				i++;
			}
			if (i == 0)
				emptyFavBrands = true;
		}

		boolean emptyFavShops = false;
		if (favoriteShops != null) {
			int i = 0;
			for (FavoriteItem item : favoriteShops) {
				String id = item.getId();
				Log.i(tag, "addFaforiteShop " + id);
				params.add(new BasicNameValuePair(PARAMS_FAVORITE_SHOP_ID + "[" + i
						+ "]", id));
				i++;
			}
			if (i == 0)
				emptyFavShops = true;
		}

		boolean error = false;

		if (emptyFavBrands && emptyFavShops) {
			if (favoriteBrands != null || favoriteShops != null)
				error = true;
		}

		if (emptyFavShops) {
			if (favoriteBrands == null && favoriteShops != null)
				error = true;
		}

		if (emptyFavBrands) {
			if (favoriteBrands != null && favoriteShops == null)
				error = true;
		}

		if (error) {
			callback.onError(JsonEntity.FAVORITE_ERROR, new IOException());
			return;
		}
}