103 lines
2.1 KiB
C#
103 lines
2.1 KiB
C#
using System;
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using System.ServiceModel;
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using System.Threading;
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using System.Windows;
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using Aitex.Core.RT.Log;
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namespace Aitex.Core.WCF
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{
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public class DuplexChannelServiceClientWrapper<T>
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{
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private DuplexChannelFactory<T> _factory;
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private T _proxy;
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private bool _isInError = false;
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private string _serviceName;
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private InstanceContext _callbackInstance;
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public DuplexChannelServiceClientWrapper(InstanceContext callbackInstance, string endpointConfigurationName, string name)
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{
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_serviceName = name;
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_callbackInstance = callbackInstance;
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try
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{
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_factory = new DuplexChannelFactory<T>(_callbackInstance, endpointConfigurationName);
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}
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catch (Exception ex)
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{
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MessageBox.Show("不能创建Service " + name + "，检查配置：" + endpointConfigurationName + ex.Message);
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LOG.Error("不能创建Service " + name + "，检查配置：" + endpointConfigurationName, ex);
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}
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}
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public void Invoke(Action<T> action)
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{
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if (_factory == null)
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{
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return;
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}
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if (_proxy == null)
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{
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_proxy = _factory.CreateChannel();
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}
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for (int i = 0; i < 2; i++)
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{
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if (Do(action))
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{
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break;
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}
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Thread.Sleep(10);
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}
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}
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private bool Do(Action<T> action)
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{
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if (_proxy != null && ((IClientChannel)(object)_proxy).State == CommunicationState.Faulted)
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{
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((IClientChannel)(object)_proxy).Abort();
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_proxy = _factory.CreateChannel();
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}
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try
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{
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action(_proxy);
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if (_isInError)
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{
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_isInError = false;
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LOG.Info(_serviceName + " 服务恢复", isTraceOn: false);
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}
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return true;
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}
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catch (EndpointNotFoundException ex)
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{
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if (!_isInError)
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{
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_isInError = true;
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LOG.Error(_serviceName + " 连接已经断开.", ex);
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}
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}
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catch (ProtocolException ex2)
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{
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if (!_isInError)
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{
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_isInError = true;
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LOG.Error(_serviceName + " 服务程序异常.", ex2);
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}
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}
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catch (Exception ex3)
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{
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if (!_isInError)
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{
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_isInError = true;
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LOG.Error(_serviceName + " 服务异常", ex3);
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}
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}
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((IClientChannel)(object)_proxy).Abort();
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_proxy = _factory.CreateChannel();
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return false;
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}
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}
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}
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