public static void Load()
{
//required
if (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("MONGO_HOST")))
{
throw new Exception("MONGO_HOST is not defined");
}
if (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("IOT_API")))
{
throw new Exception("IOT_API is not defined");
}
//optional
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("CACHING")))
{
if (int.TryParse(Environment.GetEnvironmentVariable("CACHING"), out var val) && val == 0)
{
UseCache = false;
}
}
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("MONGO_DB")))
{
MongoDatabase = Environment.GetEnvironmentVariable("MONGO_DB");
}
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("MONGO_PORT")))
{
int.TryParse(Environment.GetEnvironmentVariable("MONGO_PORT"), out _mongoPort);
}
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("TIMEOUT")))
{
int.TryParse(Environment.GetEnvironmentVariable("TIMEOUT"), out WebClientTimeout);
}
if (!string.IsNullOrEmpty(Environment.GetEnvironmentVariable("DEVICE_RETRIES")))
{
int.TryParse(Environment.GetEnvironmentVariable("DEVICE_RETRIES"), out DeviceRetries);
}
//load
_mongoHost = Environment.GetEnvironmentVariable("MONGO_HOST");
IotApiUrl = Environment.GetEnvironmentVariable("IOT_API");
if (UseCache)
{
ScheduleRepository.BuildCache();
Console.WriteLine("[Configuration] Configured to use in-memory cache.");
}
Console.WriteLine($"[Configuration] Configured to use mongo @ {MongoDbUrl}");
Console.WriteLine($"[Configuration] Configured to use IOT-API @ {IotApiUrl}");
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
_logger.LogInformation("Worker started at: {time}", DateTime.Now);
while (!stoppingToken.IsCancellationRequested)
{
var now = new TimeSpan(DateTime.Now.TimeOfDay.Hours, DateTime.Now.TimeOfDay.Minutes,
DateTime.Now.TimeOfDay.Seconds);
Parallel.ForEach(ScheduleRepository.GetRecords().FindAll(x => x.ShouldRun(now)), scheduleObj =>
{
_logger.LogInformation($"Schedule {scheduleObj.Id} running at: {DateTime.Now}");
Parallel.ForEach(scheduleObj.Devices, deviceObj =>
{
var retry = 1;
while (true)
{
try
{
WebClient.Get(deviceObj.ActionUrl);
return;
}
catch (Exception ex)
{
_logger.LogError(
$"scheduleId: {scheduleObj.Id}, deviceId: {deviceObj.DeviceId}, " +
$"attempt: {retry}/{AppConfiguration.DeviceRetries}, error: {ex.Message}");
if (retry >= AppConfiguration.DeviceRetries)
{
return;
}
Thread.Sleep(1000 * retry * 5);
retry++;
}
}
});
});
await Task.Delay(1000, stoppingToken);
}
}