/// <summary>
/// 转发
/// </summary>
/// <returns></returns>
private async Task Relay(ClientModel clientModel, SocketClient socketClient, Log log, string message)
{
RequestModel request = null;
ResponseModel response = null;
#region 解析消息
try
{
request = JsonHelper.DeserializeObject <RequestModel>(message);
}
catch (Exception ex)
{
log.Stage = "解析请求参数异常";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
ex = Log4netHelper.GetRealException(ex);
response = new ResponseModel()
{
Response = Encoding.UTF8.GetBytes(ex.Message),
};
log.Content += $"{Environment.NewLine}解析消息异常：{ex}";
Log4netHelper.Fatal($"解析消息异常：{message}", ex);
}
log.Request = request;
#endregion
#region 转发
if (request != null)
{
try
{
log.StartHttpRelayTime = DateTime.Now;
var url = clientModel.HandleUrl;
url = string.Format("{0}{1}", clientModel.HandleUrl, request.UrlPathAndQuery);
log.Stage = "开始转发请求";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
response = await HttpRelayHelper.HttpRelayAsync(url, request);
log.Stage = "收到请求响应";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
log.EndHttpRelayTime = DateTime.Now;
log.Relay = true;
}
catch (Exception ex)
{
log.Stage = "转发请求异常";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
response = new ResponseModel()
{
Response = Encoding.UTF8.GetBytes(ex.Message),
Id = request.Id,
};
log.Relay = false;
log.Content += $"{Environment.NewLine}转发消息异常：{ex}";
}
}
#endregion
log.Response = response;
SocketClient reply_socket = null;
Policy.Handle <Exception>().WaitAndRetryForever(retryAttempt => TimeSpan.FromSeconds(Math.Pow(1, retryAttempt)), (policy_ex, timer) =>
{
log.Stage = "回复异常";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
}).Execute(() =>
{
#region 确保当前客户端状态可用
if (socketClient.IsDisposable || !socketClient.Socket.Connected)
{
log.Content += $"{Environment.NewLine}客户端已被释放，开始创建新的客户端";
reply_socket = clientModel.GetOneFreeOnlineClient();
if (reply_socket != null)
{
if (reply_socket.IsDisposable || !reply_socket.Socket.Connected)
{
log.Content += $"{Environment.NewLine}客户端已被释放，开始创建新的客户端";
Policy.Handle <Exception>().WaitAndRetryForever(retryAttempt => TimeSpan.FromSeconds(Math.Pow(1, retryAttempt)), (policy_ex, timer) =>
{
log.Stage = "无可用客户端，创建客户端异常";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
log.Content += $"{Environment.NewLine}创建新的客户端异常：{policy_ex}";
}).Execute(() =>
{
reply_socket = clientModel.CreateSession();
});
}
}
else
{
reply_socket = clientModel.CreateSession();
}
}
else
{
reply_socket = socketClient;
}
#endregion
#region 回复
log.Stage = "开始回复";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
reply_socket.Send(response);
#endregion
});
log.Stage = "回复完毕";
AsyncHelper.TaskRun(() =>
{
ProcessCallback(clientModel, socketClient, log);
});
log.Reply = true;
log.ResponseDateTime = DateTime.Now;
if (ProcessedCallback != null)
{
ProcessedCallback(clientModel, reply_socket, log);
}
}