public async Task Save(EventDataWrapper eventDataWrapper)
{
try
{
var policies = _policyRegistry.CreateAsyncPolicies();
await Polly.Policy.WrapAsync(policies).ExecuteAsync(async() =>
{
var storageAccount = CloudStorageAccount.Parse(_configuration[Constants.Storage.ConnectionString]);
var tableClient = storageAccount.CreateCloudTableClient();
var table = tableClient.GetTableReference(Constants.Storage.PoisonTableName);
await table.CreateIfNotExistsAsync();
var insertOperation = TableOperation.Insert(new PoisonMessageEntity(eventDataWrapper));
await table.ExecuteAsync(insertOperation);
});
}
catch (Exception ex)
{
_logger?.LogError(ex, "Unable to save poison message into table");
}
}
public async Task ProcessAsync(IEnumerable <EventDataWrapper> messages)
{
var policies = _policyRegistry.CreateAsyncPolicies();
var repository = _repositoryFactory.Create();
var groupedMessages = messages.Where(t => t.Properties.ContainsKey(Constants.VehicleId))
.GroupBy(t => t.Properties[Constants.VehicleId]);
foreach (var message in groupedMessages)
{
var id = message.Key.ToString();
_logger?.LogDebug($"Process event for vehicle {id}");
var vehicleSnapshot = repository.Get(id) ?? new VehicleSnapshot {
Id = id
};
message
.Select(t => Deserialize(t))
.Where(t => t != null && t.Quality >= Constants.QualityGate)
.ToList().ForEach(s =>
{
if (vehicleSnapshot.Sensors.ContainsKey(s.Name))
{
ReplaceSensorData(s, vehicleSnapshot);
}
else
{
vehicleSnapshot.Sensors.Add(s.Name, VehicleSensorData.Create(s));
}
});
await Polly.Policy.WrapAsync(policies).ExecuteAsync(async() =>
{
await repository.AddAsync(vehicleSnapshot);
_logger?.LogInformation($"Save snapshot for vehicle {id}");
});
}
;
}