private ExecutionResult Execute(string className, string resultProperty)
{
var result = new ExecutionResult();
var type = typeof(ByteCodeLoader);
var formatter = new ObjectFormatter(maxLineLength: 5120);
var domain = AppDomain.CurrentDomain;
try
{
var totalProcessorTime = domain.MonitoringTotalProcessorTime;
var totalAllocatedMemorySize = domain.MonitoringTotalAllocatedMemorySize;
var loader = (ByteCodeLoader)domain.CreateInstanceAndUnwrap(type.Assembly.FullName, type.FullName);
var unformattedResult = loader.Run(className, resultProperty, _assemblyBytes);
result.Result = formatter.FormatObject(unformattedResult.ReturnValue);
result.ConsoleOutput = unformattedResult.ConsoleOutput;
result.ProcessorTime = domain.MonitoringTotalProcessorTime - totalProcessorTime;
result.TotalMemoryAllocated = domain.MonitoringTotalAllocatedMemorySize - totalAllocatedMemorySize;
}
catch (SerializationException ex)
{
result.Result = ex.Message;
}
catch (TargetInvocationException ex)
{
result.Result = ex.InnerException.ToString();
}
return result;
}
private static string FormatResult(object input)
{
try
{
var formatter = new ObjectFormatter(maxLineLength: 350);
var result = formatter.FormatObject(input);
if (string.IsNullOrEmpty(result)) return "null";
result = result.Replace(Environment.NewLine, " ").Replace("\n", " ").Replace("\r", " ");
if (result.Length > 350) result = result.Substring(0, 350);
return result;
}
catch (Exception ex)
{
return ex.ToString();
}
}
private static void ProcessQueue()
{
Logger.Debug("ProcessQueue task {0} started.", Task.CurrentId);
var stopWatch = new Stopwatch();
var formatter = new ObjectFormatter(maxLineLength: 5120);
using (var connection = CreateOpenRedisConnection())
using (var client = connection.GetClient()) {
while (true)
{
var message = client.BlockingDequeueItemFromList("queue:execute", null);
if (TokenSource.IsCancellationRequested)
{
Logger.Error("ProcessQueue task cancelled.");
break;
}
if (message != null)
{
Logger.Debug("Message received.");
var messageBytes = Convert.FromBase64String(message);
var command = ExecuteCommand.Deserialize(messageBytes);
Logger.Info("Executing: {0}", command.Code ?? string.Empty);
stopWatch.Start();
var result = Executer.Execute(command.Code);
stopWatch.Stop();
Logger.Info("Executed: {0}", command.Code ?? string.Empty);
var response = JsonConvert.SerializeObject(new {
code = command.Code,
result = formatter.FormatObject(result),
time = DateTime.UtcNow,
duration = stopWatch.ElapsedMilliseconds
});
var listeners = client.PublishMessage("workers:job-done:" + command.ClientId, response);
Logger.Debug("Response published to " + listeners + " listeners.");
stopWatch.Reset();
}
}
Logger.Debug("ProcessQueue task ending.");
}
}
private static void ProcessQueue(RedisConnection connection, string[] queues)
{
var stopWatch = new Stopwatch();
var formatter = new ObjectFormatter(maxLineLength: 5120);
Logger.Info("ProcessQueue started.");
while (true)
{
var message = connection.Lists.BlockingRemoveFirst(0, queues, DefaultTimeout);
if (message.Result == null)
{
continue;
}
var command = ExecuteCommand.Deserialize(message.Result.Item2);
var timeInQueue = DateTime.UtcNow - command.Submitted;
Logger.Info("Job received after {0:N3} seconds in queue.", timeInQueue.TotalSeconds);
if (timeInQueue > command.TimeoutPeriod)
{
Logger.Warn("Job was in queue for longer than {0} seconds, skipping!", command.TimeoutPeriod.Seconds);
continue;
}
stopWatch.Start();
var result = Executer.Execute(command.Code, command.Classes);
stopWatch.Stop();
Logger.Info("Work completed in {0} milliseconds.", stopWatch.ElapsedMilliseconds);
try
{
var response = JsonConvert.SerializeObject(new
{
code = command.Code,
classes = command.Classes,
result = formatter.FormatObject(result),
time = DateTime.UtcNow,
duration = stopWatch.ElapsedMilliseconds
});
var bytes = Encoding.UTF8.GetBytes(response);
var listeners = connection.Publish("workers:job-done:" + command.ClientId, bytes);
Logger.Info("Work results published to {0} listeners.", listeners.Result);
}
catch (JsonSerializationException ex)
{
Logger.ErrorException("An error occurred while attempting to serialize the JSON result.", ex);
}
stopWatch.Reset();
}
}
private static void ProcessQueue()
{
Logger.Info("ProcessQueue task {0} started.", Task.CurrentId);
var stopWatch = new Stopwatch();
var formatter = new ObjectFormatter(maxLineLength: 5120);
using (var connection = OpenConnection())
{
connection.Error += (sender, e) => Logger.ErrorException(e.Cause, e.Exception);
connection.Wait(connection.Open());
while (!TokenSource.IsCancellationRequested)
{
var message = connection.Lists.BlockingRemoveFirst(0, new[] { "queue:execute" }, Int32.MaxValue);
var command = ExecuteCommand.Deserialize(message.Result.Item2);
stopWatch.Start();
var result = Executer.Execute(command.Code, command.Classes);
stopWatch.Stop();
var response = JsonConvert.SerializeObject(new
{
code = command.Code,
classes = command.Classes,
result = formatter.FormatObject(result),
time = DateTime.UtcNow,
duration = stopWatch.ElapsedMilliseconds
});
var responseBytes = Encoding.UTF8.GetBytes(response);
connection.Wait(connection.Publish("workers:job-done:" + command.ClientId, responseBytes));
stopWatch.Reset();
}
Logger.Error("ProcessQueue task {0} cancelled.", Task.CurrentId);
}
}
