/// <summary>
/// Creates a new telemetry event item in the backing store.
/// </summary>
/// <param name="telemetry">The telemetry event to write to the backing store.</param>
public async Task CreateDataAsync(TelemetryEvent <TContext> telemetry)
{
try
{
using (MySqlConnection connection = new MySqlConnection(this.sqlConnectionString))
{
using (MySqlCommand command = this.CreateTelemetryInsertCommand(connection, telemetry))
{
await connection.OpenAsync().ConfigureAwait(false);
await command.ExecuteNonQueryAsync().ConfigureAwait(false);
}
}
}
catch
{
throw;
}
}
private static string SerializeItem(TelemetryEvent <TContext> item)
{
return(JsonConvert.SerializeObject(item, TelemetryEvent <TContext> .SerializationSettings));
}
protected MySqlCommand CreateTelemetryInsertCommand(MySqlConnection connection, TelemetryEvent <TContext> telemetry)
{
MySqlCommand command = connection.CreateCommand();
command.CommandType = System.Data.CommandType.Text;
command.CommandText =
@"INSERT INTO TelemetryEvents
(Timestamp, EventName, CorrelationId, Context)
VALUES (@Timestamp, @EventName, @CorrelationId, @Context)";
string eventContext = null;
if (telemetry.Context != null)
{
eventContext = JsonConvert.SerializeObject(telemetry.Context, TelemetryEvent <TContext> .SerializationSettings);
}
command.Parameters.Add(new MySqlParameter("@Timestamp", telemetry.Timestamp));
command.Parameters.Add(new MySqlParameter("@EventName", telemetry.EventName));
command.Parameters.Add(new MySqlParameter("@CorrelationId", telemetry.CorrelationId));
command.Parameters.Add(new MySqlParameter("@Context", eventContext));
return(command);
}
