ConfigProvider.kt

abstract class IConfigProvider {
    abstract fun getString(key: String): String
    abstract fun getBoolean(key: String): Boolean
    abstract fun getDouble(key: String): Double
    abstract fun getLong(key: String): Long
    abstract fun getInt(key: String): Int

    inline fun <reified T> dataFromJson(data: String?): T? {
        var configData: T? = null
        try {
            configData = Gson().fromJson(
                data,
                object : TypeToken<T?>() {}.type
            )
        } catch (e: JsonParseException) {
            e.printStackTrace()
        }
        return configData
    }
}