C# EMS Client

从 C# 客户端连接 Tibco EMS

下面例子简要介绍 C# 客户端怎样使用 TIBCO.EMS.dll 来连接 EMS 服务器.

 

using System;

using System.Diagnostics;

using System.Threading;

using TIBCO.EMS;



namespace TestEMS

{

    class Program

    {

        static void Main(string[] args)

        {

            Console.WriteLine("Test started");

            new Program().Run();

            Console.ReadLine();

        }



        private void Run()

        {

            StartEMSServer();

            CreateEMSServerTopicPublisher();

            CreateClientTopicSubscriber("Owner LIKE '%Rich Newman%'"); // Pass "" for no message selector

            EMSServerPublishThisMessage("Hello World", "Owner", "Rich Newman");

        }



        #region EMS Server

        private const string tibcoEMSPath = @"C:\tibco\ems\5.0\bin\";

        private readonly string tibcoEMSExecutable = tibcoEMSPath + "tibemsd.exe";

        private Process tibcoEMSProcess;

        public void StartEMSServer()

        {

            tibcoEMSProcess = new Process();

            ProcessStartInfo processStartInfo = new ProcessStartInfo(tibcoEMSExecutable);

            tibcoEMSProcess.StartInfo = processStartInfo;

            processStartInfo.WorkingDirectory = tibcoEMSPath;

            bool started = tibcoEMSProcess.Start();

            Thread.Sleep(500);

        }



        TopicConnection publisherConnection;

        TopicSession publisherSession;

        TopicPublisher emsServerPublisher;

        private void CreateEMSServerTopicPublisher()

        {

            TopicConnectionFactory factory = new TIBCO.EMS.TopicConnectionFactory("localhost");

            publisherConnection = factory.CreateTopicConnection("", ""); // Username, password

            publisherSession = publisherConnection.CreateTopicSession(false, Session.AUTO_ACKNOWLEDGE);

            Topic generalTopic = publisherSession.CreateTopic("GeneralTopic");

            emsServerPublisher = publisherSession.CreatePublisher(generalTopic);



            publisherConnection.Start();

        }



        internal void EMSServerPublishThisMessage(string message, string propertyName, string propertyValue)

        {

            TextMessage textMessage = publisherSession.CreateTextMessage();

            textMessage.Text = message;

            textMessage.SetStringProperty(propertyName, propertyValue);

            emsServerPublisher.Publish(textMessage);

            Console.WriteLine("EMS Publisher published message: " + message);

        }



        #endregion



        #region EMS Client

        TopicConnection subscriberConnection;

        TopicSession subscriberSession;

        private void CreateClientTopicSubscriber(string messageSelector)

        {

            TopicConnectionFactory factory = new TIBCO.EMS.TopicConnectionFactory("localhost");

            subscriberConnection = factory.CreateTopicConnection("", "");  // Username, password

            subscriberConnection.Start();

            subscriberSession = subscriberConnection.CreateTopicSession(false, Session.AUTO_ACKNOWLEDGE);

            Topic clientTopic = subscriberSession.CreateTopic("GeneralTopic");

            TopicSubscriber clientTopicSubscriber = subscriberSession.CreateSubscriber(clientTopic, messageSelector, true);

            clientTopicSubscriber.MessageHandler += new EMSMessageHandler(test_MessageHandler);

        }



        void test_MessageHandler(object sender, EMSMessageEventArgs args)

        {

            Console.WriteLine("EMS Client received message: " + args.Message.ToString());

        }



        #endregion

    }

}