如何访问.net中的activemq统计插件

Posted 2023-03-10

【中文标题】如何访问.net中的activemq统计插件

【英文标题】：how to access the activemq statistics plugin in .net

【发布时间】：2013-03-22 16:50:02

【问题描述】：

我正在尝试在c#中访问activemq统计信息http://activemq.apache.org/statisticsplugin.html

这是我到目前为止所拥有的。我无法得到消费者的回复。我可以在监控网站的队列中增加计数。

public class Statistics 

    private readonly string queueName = string.Empty;
    private readonly string queueToMonitor = string.Empty; 
    private readonly IConnectionFactory connectionFactory;
    private readonly IConnection connection;
    private readonly ISession session;
    private readonly IMessageProducer producer;
    private readonly ActiveMQQueue queue;


    public Statistics(string qName, string brokerUri, string queueToMon)
    
        this.queueName = qName;
        this.queueToMonitor = "ActiveMQ.Statistics.Destination." + queueToMon; 
        this.connectionFactory = new ConnectionFactory(brokerUri);
        this.connection = connectionFactory.CreateConnection();
        this.connection.Start();
        this.session = connection.CreateSession();

        queue = new ActiveMQQueue(qName);
        producer = session.CreateProducer(queue);

    

    public void GetStats()
    
        try
        
            var statusQueue = session.CreateTemporaryQueue();
            var consumer = session.CreateConsumer(statusQueue);
            ActiveMQQueue query = new ActiveMQQueue(queueToMonitor);

            var msg = session.CreateMessage();
            msg.NMSReplyTo = statusQueue;
            producer.Send(queue, msg);

            var reply = (ActiveMQMapMessage)consumer.Receive();

            if (reply != null)
            
                var test = reply.Content.ToString(); 
            
         
        catch (Exception e)
        
            var t = e.Message + " " + e.StackTrace;
        

    

【问题讨论】：

您是否确保在您的 Broker 上启用了该插件？

【参考方案1】：

您将消息发送到错误的队列。您需要将消息发送到 ActiveMQ.Statistics.Destination.QueueToMonitor 目的地。我重新编写了您的 GetStats() 函数以表明它有效。关键的变化是生产者将消息发送到哪个目的地。

public void GetStats()

    try
    
        IDestination statusQueue = session.CreateTemporaryQueue();
        IMessageConsumer consumer = session.CreateConsumer(statusQueue);
        IDestination query = session.GetQueue(queueToMonitor);
        IMessage msg = session.CreateMessage();
        IMessageProducer producer = session.CreateProducer(query);

        msg.NMSReplyTo = statusQueue;
        producer.Send(msg);

        IMapMessage reply = (IMapMessage) consumer.Receive();

        if(reply != null)
        
            IPrimitiveMap statsMap = reply.Body;

            foreach(string statKey in statsMap.Keys)
            
                Console.WriteLine("0 = 1", statKey, statsMap[statKey]);
            
        
    
    catch(Exception e)
    
        var t = e.Message + " " + e.StackTrace;