尝试跳转到Windows Server ServiceBus 1.1代码库并采用新的TPL异步方法。但我找不到一个简单的方法来为消息会话启动N个处理程序(可能有100个左右的并发会话)。因此,对以下代码获得一些反馈会很棒,任何有关更简单方法的建议都会很棒...请注意,为了问题目的,请尽量保持代码示例的简单。
///example usage
SubscriptionClient subClient = SubscriptionClient.Create(TopicName, SubscriptionName);
subClient.HandleSessions(5, msg =>
{
Console.WriteLine(string.Format("Processing recived Message: SessionId = {0}, Body = {1}",
msg.SessionId,
msg.GetBody<string>()));
msg.Complete();
});
public static class SubscriptionClientExtensions
{
public static void HandleSessions (this SubscriptionClient sc, Int32 numberOfSessions, Action<BrokeredMessage> handler)
{
Action<Task<MessageSession>> sessionAction = null;
Action<Task<BrokeredMessage>> msgHandler = null;
sessionAction = new Action<Task<MessageSession>>(tMS =>
{
if (tMS.IsFaulted) // session timed out - repeat
{
sc.AcceptMessageSessionAsync().ContinueWith(sessionAction);
return;
}
MessageSession msgSession = null;
try
{
msgSession = tMS.Result;
}
catch (Exception)
{
return; // task cancelation exception
}
msgHandler = new Action<Task<BrokeredMessage>>(taskBM =>
{
if (taskBM.IsFaulted)
return;
BrokeredMessage bMsg = null;
try
{
bMsg = taskBM.Result;
}
catch (Exception)
{
return; // task cancelation exception
}
if (bMsg == null)
{
sc.AcceptMessageSessionAsync().ContinueWith(sessionAction); // session is dead
return;
}
handler(bMsg); // client code to handle the message
msgSession.ReceiveAsync(TimeSpan.FromSeconds(5)).ContinueWith(msgHandler); // repeat
});
msgSession.ReceiveAsync(TimeSpan.FromSeconds(5)).ContinueWith(msgHandler); // start listening
});
for (Int32 nIndex = 0; nIndex < numberOfSessions; nIndex++)
{
sc.AcceptMessageSessionAsync().ContinueWith(sessionAction);
}
}
}