public void Dispose()
{
if (chnl != null && chnl.State == CommunicationState.Opened) {
chnl.Close();
chnl = null;
}
}
/// <summary>
/// 调用远程方法
/// </summary>
/// <param name="data">调用数据包</param>
/// <returns>以字节流返回的调用结果</returns>
public byte[] Invoke(byte[] data)
{
byte[] buffer;
try {
buffer = chnl.Invoke(data); // 调用远程方法
}
catch (CommunicationObjectAbortedException ex) {
if (chnl != null) {
if (chnl.State == CommunicationState.Opened) {
chnl.Close();
}
chnl = null;
}
//ClientEventDispatcher.Instance.Logger.Info("捕获CommunicationObjectAbortedException异常,通道将被重建。");
throw ex;
}
catch (FaultException<ExceptionDetail> ex) {
if (ex.Detail.InnerException != null) {
throw new Exception(ex.Detail.InnerException.Message);
}
throw new Exception(ex.Detail.Message);
}
catch (FaultException ex) {
throw new Exception(ex.Message);
}
catch (Exception ex) {
throw ex;
}
// 返回结果
return buffer;
}
/// <summary>
/// Initializes a new instance of the <see cref="WcfChannel"/> class.
/// </summary>
public WcfChannel()
{
if (chnl == null) {
chnl = new WcfChannelClient(new InstanceContext(new CallbackHandler()));
chnl.ChannelFactory.Closed +=new EventHandler(ChannelFactory_Closed);
chnl.ChannelFactory.Faulted +=new EventHandler(ChannelFactory_Faulted);
chnl.InnerChannel.Opened += new EventHandler(InnerChannel_Opened);
chnl.InnerChannel.Closed += new EventHandler(InnerChannel_Closed);
chnl.InnerChannel.Faulted += new EventHandler(InnerChannel_Faulted);
}
}
private void InnerChannel_Closed(object sender, EventArgs e)
{
//ClientEventDispatcher.Instance.Logger.Info("客户端Wcf通道被关闭, 系统将自动重建Wcf通道. ");
chnl = null;
}
private void InnerChannel_Faulted(object sender, EventArgs e)
{
//ClientEventDispatcher.Instance.Logger.Info("Wcf 通道失效, 状态为 : " + chnl.State);
if (chnl.State == CommunicationState.Faulted)
{
chnl.Abort();
}
chnl = null;
}
private void ChannelFactory_Faulted(object sender, EventArgs e)
{
//ClientEventDispatcher.Instance.Logger.Info("客户端Wcf通道因故被重置, 状态为 : " + chnl.State);
if (chnl != null)
{
chnl.Close();
chnl = null;
}
}