protected void WriteLogMessage(exDb dbContext, int?_Inbound_Id, int?_Outbound_Id, bool _IsError, string _Message, string _Details)
{
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Inbound_Id = _Inbound_Id,
Outbound_Id = _Outbound_Id,
IsError = _IsError,
Message = _Message,
Details = _Details
}
.TryWrite(dbContext);
}
void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
if (!Monitor.TryEnter(TimerLock) || ShouldStop)
{
return;
}
using (var exdb = new exDb(dbConnStr)) {
foreach (var bus in Buses.Where(b => !b.IsConnected))
{
new LogRecord()
{
Source = _Name,
HostId = RabbitQueues.FirstOrDefault(q => bus == q.Bus).Host_Id,
IsError = true,
Message = "Утеряно соединение с сервером RabbitMQ. Выполняются попытки переподключения...",
Details = RabbitQueues.FirstOrDefault(q => bus == q.Bus).Host.ConnectionString
}
.TryWrite(dbConnStr, dbLog);
}
foreach (var w in workers)
{
if (!w.IsAlive)
{
new LogRecord()
{
Source = _Name,
HostId = w.HostId,
QueueId = w.QueueId,
Message = "Обнаружено непредвиденное завершение обработчика очереди сообщений. Перезапускаем обработчик...",
Details = w.QueueFullName
}
.TryWrite(dbConnStr, dbLog);
w.Respawn();
}
}
}
Monitor.Exit(TimerLock);
}
private void MessageHandler(Byte[] body, MessageProperties mp, MessageReceivedInfo mi)
{
using (var exdb = new exDb(dbConnStr)) {
exdb.Log = dbLog;
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Message = String.Format("Принято сообщение {0} байт", body.Length),
Details = this.QueueFullName
}
.TryWrite(exdb);
var msg = Queue.Base64Data ? Convert.ToBase64String(body)
: this.Encoding.GetString(body);
var record = new Inbound()
{
QueueId = this.QueueId,
DateReceived = DateTime.Now,
Message = msg
};
exdb.Inbound.InsertOnSubmit(record);
// Rethrow = true. Если не удалось записать сообщение в БД, таск должен упасть, чтобы EasyNetQ не отправил Ack раббиту
exdb.TrySubmitChanges(true);
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Inbound_Id = record.Message_Id,
Message = String.Format("Записали {0}сообщение в БД", Queue.Base64Data ? "base64 " : ""),
Details = String.Format("{0} символов", msg.Length)
}
.TryWrite(exdb);
}
}
public void Start()
{
try {
Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), Exchange_Svc.MyServiceName));
} catch (Exception ex) {
Trace.TraceWarning("{2}\t{0}: не удалось создать папку логов: {1}", _Name, ex.Message, DateTime.Now);
}
if (DebugFlag.Enabled)
{
try {
dbLog = new StreamWriter(Path.Combine(Path.GetTempPath(), Exchange_Svc.MyServiceName, "service.dblog"))
{
AutoFlush = true
};
} catch (Exception ex) {
Trace.TraceWarning("{2}\t{0}: не удалось создать журнал dblog: {1}", _Name, ex.Message, DateTime.Now);
}
}
Trace.TraceInformation("{1}\t{0}: запускается...", _Name, DateTime.Now);
if (dbConnStr == null || String.IsNullOrWhiteSpace(dbConnStr))
{
FailStart("Запуск невозможен: строка подключения к БД не может быть пустой");
}
using (var SQLconn = new SqlConnection(dbConnStr)) {
// Пытаемся подключиться к БД
int errorCounter = 0;
while (SQLconn.State == ConnectionState.Closed)
{
try {
SQLconn.Open();
} catch (Exception ex) {
if (ex is InvalidOperationException)
{
FailStart("Запуск невозможен: ошибка в строке подключения к БД \"{0}\"", dbConnStr);
}
else if (errorCounter >= 3)
{
FailStart("Превышено допустимое количество неудачных попыток подключения к БД. Последняя ошибка: {0}", ex.Message);
}
else
{
errorCounter++;
Trace.TraceWarning("{1}\tНеудачная попытка подключения к БД: {0}", ex.Message, DateTime.Now);
Thread.Sleep(1000);
}
}
}
// На этом этапе соединение с БД установлено
try {
new LogRecord()
{
Source = _Name,
Message = "Успешный запуск, установлено соединение с БД",
Details = dbConnStr
}
.TryWrite(SQLconn, dbLog);
} catch (Exception ex) {
FailStart("Запуск невозможен: ошибка записи в БД, {0}", ex.Message);
}
// Получаем список хостов RabbitMQ
using (var exdb = new exDb(SQLconn)) {
exdb.Log = dbLog;
RabbitHosts = exdb.Hosts.Where(h => exdb.Queues.Any(q => q.Host_Id == h.Host_Id)).ToList();
RabbitQueues = exdb.Queues.ToList();
if (RabbitHosts.Count == 0)
{
var msg = "В таблице Hosts нет активных записей. Остановка службы";
new LogRecord()
{
Source = _Name,
IsError = true,
Message = msg
}
.TryWrite(exdb);
FailStart(msg);
}
}
// Подключаемся к хостам RabbitMQ
foreach (var host in RabbitHosts)
{
var rabbit_conn = new ConnectionConfiguration();
rabbit_conn.PrefetchCount = Convert.ToUInt16((host.PrefetchCount > 0) ? host.PrefetchCount : 1);
rabbit_conn.PublisherConfirms = true;
//r_conn.Port = Convert.ToUInt16((host.Port > 0) ? host.Port : 5671);
if (!String.IsNullOrWhiteSpace(host.VirtualHost))
{
rabbit_conn.VirtualHost = host.VirtualHost;
}
if (!String.IsNullOrWhiteSpace(host.Username))
{
rabbit_conn.UserName = host.Username;
if (!String.IsNullOrWhiteSpace(host.Password))
{
rabbit_conn.Password = host.Password;
}
}
var r_host = new HostConfiguration();
r_host.Host = host.Host;
r_host.Port = Convert.ToUInt16((host.Port > 0) ? host.Port : host.SslEnabled ? 5671 : 5672);
if (host.SslEnabled)
{
r_host.Ssl.Enabled = true;
//r_host.Ssl.ServerName = host.Host;
r_host.Ssl.AcceptablePolicyErrors = System.Net.Security.SslPolicyErrors.RemoteCertificateChainErrors | System.Net.Security.SslPolicyErrors.RemoteCertificateNotAvailable | System.Net.Security.SslPolicyErrors.RemoteCertificateNameMismatch;
}
rabbit_conn.Hosts = new[] { r_host };
new LogRecord()
{
Source = _Name,
HostId = host.Host_Id,
Message = String.Format("Подключаемся к {0}серверу RabbitMQ...", host.SslEnabled ? "SSL " : ""),
Details = host.ConnectionString
}
.TryWrite(SQLconn, dbLog);
IEasyNetQLogger r_Log = new EasyNetQ.Loggers.NullLogger();
if (DebugFlag.Enabled)
{
try {
r_Log = new RabbitTextLogger(new StreamWriter(Path.Combine(Path.GetTempPath(), Exchange_Svc.MyServiceName, String.Format("rabbit_{0}.log", host.Host_Id)))
{
AutoFlush = true
});
//r_Log = new EasyNetQ.Loggers.ConsoleLogger();
} catch (Exception ex) {
Trace.TraceWarning("{4}\t{0}: не удалось создать журнал rabbit_{1} ({2}): {3}", _Name, host.Host_Id, host.ConnectionString, ex.Message, DateTime.Now);
}
}
try {
rabbit_conn.Validate();
var bus = RabbitHutch.CreateBus(rabbit_conn, services => services.Register <IEasyNetQLogger>(logger => r_Log));
Buses.Add(bus);
foreach (var q in RabbitQueues.Where(q => q.Host_Id == host.Host_Id))
{
q.Bus = bus;
}
for (int i = 0; i < 10; i++)
{
if (bus.IsConnected)
{
new LogRecord()
{
Source = _Name,
HostId = host.Host_Id,
Message = String.Format("Установлено {0}подключение к RabbitMQ", host.SslEnabled ? "SSL " : ""),
Details = host.ConnectionString
}
.TryWrite(SQLconn, dbLog);
break;
}
Thread.Sleep(10);
}
} catch (Exception ex) {
new LogRecord()
{
Source = _Name,
IsError = true,
Message = String.Format("Ошибка при {0}подключении к серверу RabbitMQ: {1}", host.SslEnabled ? "SSL " : "", ex.Message),
Details = rabbit_conn.ToString()
}
.TryWrite(SQLconn, dbLog);
}
// }
}
if (Buses.Count == 0)
{
var msg = "Не удалось подключиться ни к одному из хостов RabbitMQ. Остановка службы";
new LogRecord()
{
Source = _Name,
IsError = true,
Message = msg
}
.TryWrite(SQLconn, dbLog);
FailStart(msg);
}
// Запускаем обработчики очередей
workers = new List <Worker>();
foreach (var queue in RabbitQueues.Where(q => q.Bus != null))
{
Worker w;
if (queue.Direction.Trim() == "In")
{
w = new Receiver(dbConnStr, (IBus)queue.Bus, queue);
}
else if (queue.Direction.Trim() == "Out")
{
w = new Sender(dbConnStr, (IBus)queue.Bus, queue);
}
else
{
new LogRecord()
{
Source = _Name,
HostId = queue.Host.Host_Id,
QueueId = queue.Queue_Id,
IsError = true,
Message = String.Format("Неизвестный тип очереди: '{0}'", queue.Direction),
Details = queue.Name
}
.TryWrite(SQLconn, dbLog);
continue;
}
new LogRecord()
{
Source = _Name,
HostId = queue.Host.Host_Id,
QueueId = queue.Queue_Id,
Message = "Запускаем обработчик очереди сообщений...",
Details = w.QueueFullName
}
.TryWrite(SQLconn, dbLog);
w.Run();
workers.Add(w);
}
timer = new System.Timers.Timer(30000D);
timer.AutoReset = true;
timer.Elapsed += timer_Elapsed;
timer.Start();
#if DEBUG
while (!workers.All(w => w.Thread.Join(3000)))
{
continue;
}
#endif
}
}
public override void Start()
{
var aBus = Bus.Advanced;
if (DebugFlag.Enabled)
{
try {
dbLog = new StreamWriter(Path.Combine(Path.GetTempPath(), Exchange_Svc.MyServiceName, String.Format("{0}.dblog", _Name)))
{
AutoFlush = true
};
} catch (Exception ex) {
Trace.TraceWarning("{2}\t{0}: не удалось создать журнал dblog: {1}", _Name, ex.Message, DateTime.Now);
}
}
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Message = "Обработчик отправки сообщений запущен",
Details = QueueFullName
}
.TryWrite(dbConnStr, dbLog);
int MsgCounter = 0;
int TotalMsgCounter = 0;
long BytesProcessed = 0;
long TotalBytesProcessed = 0;
while (!ShouldStop)
{
using (var exdb = new exDb(dbConnStr)) {
exdb.Log = dbLog;
Outbound message;
while (!ShouldStop && aBus.IsConnected &&
null != (message = exdb.Outbound.FirstOrDefault(o => o.QueueId == this.QueueId && o.DateSent == null)))
{
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Outbound_Id = message.Message_Id,
Message = "Начинаем отправку сообщения...",
Details = String.Format("{0} символов", message.Message.Length)
}
.TryWrite(exdb);
byte[] data;
//TODO: every xx (1000?) messages do gc.collect(2) to clear LOH
try {
data = Queue.Base64Data ? Convert.FromBase64String(message.Message)
: Encoding.UTF8.GetBytes(message.Message);
BytesProcessed += sizeof(byte) * data.Length;
TotalBytesProcessed += sizeof(byte) * data.Length;
MsgCounter++;
TotalMsgCounter++;
} catch (Exception ex) {
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Outbound_Id = message.Message_Id,
IsError = true,
Message = "Ошибка декодирования base64",
Details = ex.Message
}
.TryWrite(exdb);
message.ErrorFlag = true;
message.DateSent = new DateTime(1900, 1, 1);
exdb.TrySubmitChanges();
continue;
}
if (IntPtr.Size == 4 && BytesProcessed > 3 * (1024 * 1024 * 512))
{
LogInfo(exdb, "Forcing GC.Collect(2)",
String.Format("Processed {0} messages, {1} MB since last GC. Total {2} messages, {3} MB. Reported GC UsedMem {4} MB"
, MsgCounter, BytesProcessed / (1024 * 1024), TotalMsgCounter, TotalBytesProcessed / (1024 * 1024), GC.GetTotalMemory(false) / (1024 * 1024)));
// new LogRecord() {
// Source = this._Name,
// HostId = this.HostId,
// QueueId = this.QueueId,
// Message = "Forcing GC.Collect(2)",
// Details = String.Format("Processed {0} messages, {1} MB since last GC ({2} msgs, {3} MB total). Reported GC UsedMem {4} MB"
// ,MsgCounter, BytesProcessed/(1024*1024), TotalMsgCounter, TotalBytesProcessed/(1024*1024), GC.GetTotalMemory(false)/(1024*1024)) }
// .TryWrite(exdb);
GC.Collect(2);
MsgCounter = 0;
BytesProcessed = 0;
LogInfo(exdb, "Finished GC.Collect(2)",
String.Format("Reported GC UsedMem {0} MB", GC.GetTotalMemory(false) / (1024 * 1024)));
// new LogRecord() {
// Source = this._Name,
// HostId = this.HostId,
// QueueId = this.QueueId,
// Message = "Finished GC.Collect(2)",
// Details = String.Format("Reported GC UsedMem {0} MB", GC.GetTotalMemory(false)/(1024*1024)) }
// .TryWrite(exdb);
}
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Outbound_Id = message.Message_Id,
Message = Queue.Base64Data ? "Декодировали base64" : "Сформировали массив байт",
Details = String.Format("{0} байт", data.Length)
}
.TryWrite(exdb);
try {
var mp = new MessageProperties();
if (!String.IsNullOrWhiteSpace(message.AppMsgId))
{
mp.MessageId = message.AppMsgId;
}
IExchange ex = String.IsNullOrWhiteSpace(this.ExchangeName) ? Exchange.GetDefault() :
new Exchange(this.ExchangeName);
aBus.Publish(ex, this.QueueName, true, false, mp, data);
} catch (Exception ex) {
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Outbound_Id = message.Message_Id,
IsError = true,
Message = "Ошибка при отправке сообщения",
Details = ex.Message
}
.TryWrite(exdb);
Thread.Sleep(PollInterval);
continue;
}
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Outbound_Id = message.Message_Id,
Message = "Сообщение успешно отправлено!",
Details = this.QueueFullName
}
.TryWrite(exdb);
message.DateSent = DateTime.Now;
exdb.TrySubmitChanges();
}
}
Thread.Sleep(PollInterval);
}
// Вышли из главного цикла (ShouldStop = true)
new LogRecord()
{
Source = this._Name,
HostId = this.HostId,
QueueId = this.QueueId,
Message = "Получена команда остановить обработчик. Нормальное завершение работы",
Details = QueueFullName
}
.TryWrite(dbConnStr, dbLog);
}
public void LogError(exDb dbContext, string _Message, string _Details, int?msg_Id = null)
{
WriteLogMessage(dbContext, null, msg_Id, true, _Message, _Details);
}
public void LogInfo(exDb dbContext, string _Message, string _Details, int?msg_Id = null)
{
WriteLogMessage(dbContext, null, msg_Id, false, _Message, _Details);
}