我有一个服务器应用程序,在极少数情况下出现意外错误时,它应该向 lync 用户(端点)发送即时消息。
据我所知,我无法使用 Lync 客户端 SDK,因为它依赖于应用程序服务器上正在运行的 Lync 客户端。然而这是不可能的。 UCWA 似乎是一个公平的选择,但我真的不想开始编写自己的 Lync API,将所有 HttpClient 聊天隐藏在托管代码包装器中。
对于这个简单的用例,我的最佳选择是什么?
最佳答案
我建议使用UCMA - 统一通信托管 API。如果您要发送的是一次性即时消息,并且不需要可扩展来处理许多同时对话等的应用程序,则可以使用 UserEndpoint,因为它比 ApplicationEndpoint 的工作和设置要少一些。
我的博客上有一个执行此操作的工作示例:http://thoughtstuff.co.uk/2013/03/creating-ucma-applications-with-a-userapplication-instance-example-sending-ims/其中还包含有关您拥有的不同选项的更多信息。
但是,为了完整起见(并且因为 SO 的存在时间比我预期的博客要长!),这里是代码:
using Microsoft.Rtc.Collaboration;
using System;
namespace SimpleUserUCMA
{
class Program
{
private const string sipaddress = "sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="aaccd8c5c7eacec5c7cbc3c484c9c5c7" rel="noreferrer noopener nofollow">[email protected]</a>";
private const string username = "USERNAME";
private const string password = "PASSWORD";
private const string domain = "DOMAIN";
private const string destinationSip = "sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8bffe4e6cbefe4e6eae2e5a5e8e4e6" rel="noreferrer noopener nofollow">[email protected]</a>";
private const string IMMessage = "Hello!";
static CollaborationPlatform _collabPlatform { get; set; }
static UserEndpoint _endpoint { get; set; }
static bool _OKToQuit = false;
static void Main(string[] args)
{
string userAgent = "ClientPlatformExample";
var platformSettings = new ClientPlatformSettings(userAgent, Microsoft.Rtc.Signaling.SipTransportType.Tls);
_collabPlatform = new CollaborationPlatform(platformSettings);
//Start up the platform, calling back asynchronously once it's done.
_collabPlatform.BeginStartup(EndCollabPlatformStartup, null);
//In this example, wait for everything to finish before exiting
while (!_OKToQuit)
{
System.Threading.Thread.Sleep(2000);
}
}
private static void EndCollabPlatformStartup(IAsyncResult ar)
{
_collabPlatform.EndStartup(ar);
//A collaboration plaform can have one or more Endpoints. An Endpoint is tied to a SIP Address.
UserEndpointSettings settings = new UserEndpointSettings(sipaddress);
settings.Credential = new System.Net.NetworkCredential(username, password, domain);
settings.AutomaticPresencePublicationEnabled = true;
_endpoint = new UserEndpoint(_collabPlatform, settings);
_endpoint.BeginEstablish(UserEndpointEstablishCompleted, null);
}
private static void UserEndpointEstablishCompleted(IAsyncResult ar)
{
_endpoint.EndEstablish(ar);
//Once the endpoint is in place, create a Conversation and an IM Call.
var Conversation = new Conversation(_endpoint);
var Call = new InstantMessagingCall(Conversation);
//When the call is established, Flow will be created. Flow is how you sent IMs around. Therefore, just before
//establishing, we attach an event handler to catch the flow being setup (it's state will change to Active)
Call.InstantMessagingFlowConfigurationRequested += Call_InstantMessagingFlowConfigurationRequested;
Call.BeginEstablish(destinationSip, new CallEstablishOptions(), EndBeginEstablish, Call);
}
private static void EndBeginEstablish(IAsyncResult ar)
{
Call call = (Call)ar.AsyncState;
call.EndEstablish(ar);
}
static void Call_InstantMessagingFlowConfigurationRequested(object sender, InstantMessagingFlowConfigurationRequestedEventArgs e)
{
//Once we're notified about this, we get a handle to the newly created Flow. Let's use this to register for state changes.
e.Flow.StateChanged += Flow_StateChanged;
}
static void Flow_StateChanged(object sender, MediaFlowStateChangedEventArgs e)
{
if (e.State == MediaFlowState.Active)
{
//The flow is now active! We can use it to send messages.
InstantMessagingFlow flow = (InstantMessagingFlow)sender;
flow.BeginSendInstantMessage(IMMessage, EndBeginSendInstanceMessage, flow);
}
}
private static void EndBeginSendInstanceMessage(IAsyncResult ar)
{
InstantMessagingFlow flow = (InstantMessagingFlow)ar.AsyncState;
flow.EndSendInstantMessage(ar);
//Having sent the message, terminate the conversation
flow.Call.Conversation.BeginTerminate(EndBeginTerminate, flow.Call.Conversation);
}
private static void EndBeginTerminate(IAsyncResult ar)
{
Conversation conversation = (Conversation)ar.AsyncState;
conversation.EndTerminate(ar);
_OKToQuit = true;
}
}
}
关于lync - 哪个 Lync SDK?从托管代码发送 IM,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16300082/