/// <summary>
/// Find is getting data from remote (redis) storage. After this
/// it writes updated version of data into locaL (litedb) storage
/// </summary>
/// <param name="key"></param>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
private T Find <T>(string key)
{
var liteDbService = new LiteDbService();
var dynamicConfig = new DynamicConfig
{
ApplicationName = ApplicationName,
Name = key,
IsActive = 1
};
var configurationReaderFactory = new ConfigurationServiceFactory();
var reader = configurationReaderFactory.ProduceReader("Redis", ConnectionString);
var redisResult = reader.Read <DynamicConfig>(dynamicConfig);
// If redis result fits with requested data type
if (redisResult?.Value is T)
{
liteDbService.RemoveConfig(key);
liteDbService.AddConfig(redisResult);
return((T)Convert.ChangeType(redisResult.Value, typeof(T)));
}
return(default(T));
}
/// <summary>
/// ConfigJob is the definition of scheduled job of worker.
/// It's comparing local (litedb) data with remote (redis) storage data. Also it's
/// making neccessary updates on local.
/// </summary>
/// <param name="key"></param>
/// <param name="refreshTimerIntervalInMs"></param>
/// <returns></returns>
private async Task <bool> ConfigJob(string key, TimeSpan refreshTimerIntervalInMs)
{
var isCancelled = _cancellationToken.IsCancellationRequested;
// if task not cancelled
if (!isCancelled)
{
await Task.Delay(refreshTimerIntervalInMs, _cancellationToken);
var liteDbService = new LiteDbService();
var dynamicConfig = new DynamicConfig
{
ApplicationName = ApplicationName,
Name = key,
IsActive = 1
};
var configurationReaderFactory = new ConfigurationServiceFactory();
var reader = configurationReaderFactory.ProduceReader("Redis", ConnectionString);
var redisResult = reader.Read <DynamicConfig>(dynamicConfig);
var liteDbResult = liteDbService.GetConfig(key);
if (redisResult != null && liteDbResult != null)
{
// Comparing data changes
if (redisResult.Value != liteDbResult.Value)
{
liteDbService.RemoveConfig(key);
liteDbService.AddConfig(redisResult);
return(true);
}
}
}
return(false);
}