/// <summary>
/// 检查该处理程序信息是否存在
/// </summary>
public override bool IsHandlerInfoExist(HandlerRecordData handlerInfo)
{
if (base.IsHandlerInfoExist(handlerInfo))
{
return(true);
}
using (var context = _contextFactory.CreateDataContext()) {
return(IsHandlerInfoExist(context, handlerInfo));
}
}
private static bool IsHandlerInfoExist(IDataContext context, HandlerRecordData handleInfo)
{
try {
return(context.CreateQuery <HandlerRecordData>()
.Any(p => p.MessageId == handleInfo.MessageId &&
p.MessageTypeCode == handleInfo.MessageTypeCode &&
p.HandlerTypeCode == handleInfo.HandlerTypeCode));
}
catch (Exception) {
throw;
}
}
/// <summary>
/// 添加处理程序信息
/// </summary>
public override void AddHandlerInfo(HandlerRecordData handlerInfo)
{
base.AddHandlerInfo(handlerInfo);
using (var context = _contextFactory.CreateDataContext()) {
if (IsHandlerInfoExist(context, handlerInfo))
{
return;
}
context.Save(handlerInfo);
context.Commit();
}
}
/// <summary>
/// 处理当前消息。
/// </summary>
protected void ProcessHandler(Type messageType, IMessage message, IProxyHandler messageHandler)
{
var messageHandlerType = messageHandler.GetInnerHandler().GetType();
try {
if (message is EventStream)
{
messageHandler.Handle(message);
}
else
{
var messageHandlerTypeCode = _typeCodeProvider.GetTypeCode(messageHandlerType);
var messageTypeCode = _typeCodeProvider.GetTypeCode(messageType);
var messageHandlerInfo = new HandlerRecordData(message.Id, messageHandlerTypeCode, messageTypeCode);
if (!_handlerStore.IsHandlerInfoExist(messageHandlerInfo))
{
messageHandler.Handle(message);
_handlerStore.AddHandlerInfo(messageHandlerInfo);
}
_logger.Debug("Handle message success. messageHandlerType:{0}, messageType:{1}, messageId:{2}",
messageHandlerType.FullName, messageType.FullName, message.Id);
}
}
catch (Exception ex) {
if (!(message is EventStream))
{
string errorMessage = string.Format("Exception raised when {0} handling {1}. message info:{2}.",
messageHandlerType.FullName, messageType.FullName, message.ToString());
_logger.Error(ex, errorMessage);
}
throw ex;
}
finally {
if (messageHandler is IDisposable)
{
((IDisposable)messageHandler).Dispose();
}
}
}
