WCF中托管的TCP保持活动连接

我正试图在与第三方应用程序通信的wcf服务中托管TCP客户端连接。WCF服务将包装对第三方应用程序的tcp调用，以便任何连接到WCF服务的应用程序都不知道tcp连接。由于第三方应用程序需要的协议，tcp连接必须保持活动状态。我已经实现了处理错误和重新连接的逻辑，但我遇到的问题是如何打开和关闭这个连接。我有没有办法覆盖主机的Open和Close调用，这样我就可以对我的CommunicationService执行同样的操作？

我的代码：

public partial class HostService : ServiceBase
{
    private ServiceHost _host;
    public HostService()
    {
        InitializeComponent();
    }
    protected override void OnStart(string[] args)
    {
        Type serviceType = typeof(MessageProcessor);
        var serviceUri = new Uri("http://localhost:9091/");
        _host = new ServiceHost(serviceType, serviceUri);
        _host.Open();
    }
    protected override void OnStop()
    {
        _host.Close();
    }
}
[ServiceContract]
public interface IMessageProcessor
{
    [OperationContract]
    void ProcessMessage(string message);
}
public class MessageProcessor : IMessageProcessor
{
    //This is handling my TCP connection.
    private CommunicationService _communicationService;
    public MessageProcessor()
    {
        _communicationService = new CommunicationService();
    }
    public void ProcessMessage(string message)
    {
        if(_communicationService.Connected)
        {
            var request = new QueryMessage();
            var result = _communicationService.TransmitMessage(request);
        }
        else
        {
            //Error handling, not necessary for now
        }
    }
    //I want to do this
    public override Open()
    {
        _communicationService.Open();
    }
    public override Close()
    {
        _communicationService.Close();
    }
}