public void PerformEvent(IRoutingEventArgs args)
{
IChainRoutingNodeProxy proxy = firstProxy;
while (proxy != null)
{
proxy.HandleEvent(args);
switch (args.RoutingState)
{
case RoutingState.Start:
args.RoutingState = RoutingState.Normal;
break;
case RoutingState.Skip:
args.RoutingState = RoutingState.Continue;
continue;
case RoutingState.Handled:
break;
default:
break;
}
}
}
public void RemoveNode(object target, MatchingStrategy strategy, bool removeSubsequent)
{
IChainRoutingNodeProxy removeProxy = MatchinProxy(target, strategy);
IChainRoutingNodeProxy nextProxy = removeSubsequent ? null : removeProxy.NextProxy;
removeProxy.LastProxy.NextProxy = nextProxy;
}
public void AddNode(object node, object identify)
{
IChainRoutingNodeProxy proxy = CreateProxy(node, identify);
IChainRoutingNodeProxy lastProxy = GetLastProxy();
lastProxy.NextProxy = proxy;
proxy.LastProxy = lastProxy;
}
public void InsertNode(object node, object identify, object previous, MatchingStrategy strategy)
{
IChainRoutingNodeProxy proxy = CreateProxy(node, identify);
IChainRoutingNodeProxy lastProxy = MatchinProxy(previous, strategy);
IChainRoutingNodeProxy nextProxy = lastProxy.NextProxy;
lastProxy.NextProxy = proxy;
proxy.LastProxy = lastProxy;
proxy.NextProxy = nextProxy;
nextProxy.LastProxy = proxy;
}
public void ReplaceNode(object node, object identify)
{
IChainRoutingNodeProxy proxy = CreateProxy(node, identify);
IChainRoutingNodeProxy replaceProxy = MatchinProxy(identify, MatchingStrategy.Identify);
IChainRoutingNodeProxy lastProxy = replaceProxy.LastProxy;
IChainRoutingNodeProxy nextProxy = replaceProxy.NextProxy;
lastProxy.NextProxy = proxy;
proxy.LastProxy = lastProxy;
proxy.NextProxy = nextProxy;
nextProxy.LastProxy = proxy;
}
/// <summary>
/// 匹配节点
/// </summary>
/// <param name="target">匹配目标</param>
/// <param name="strategy">匹配模式</param>
/// <returns></returns>
protected IChainRoutingNodeProxy MatchinProxy(object target, MatchingStrategy strategy)
{
if (firstProxy == null)
{
return(null);
}
IChainRoutingNodeProxy nowProxy = firstProxy;
switch (strategy)
{
case MatchingStrategy.Deep:
int nowDeep = 0;
int targetDeep = (int)target;
while (firstProxy.NextProxy != null)
{
if (nowDeep == targetDeep)
{
return(nowProxy);
}
nowProxy = nowProxy.NextProxy;
nowDeep += 1;
}
return(nowProxy);
case MatchingStrategy.Identify:
while (firstProxy.NextProxy != null)
{
if (nowProxy.ProxyIdentify == target)
{
return(nowProxy);
}
nowProxy = nowProxy.NextProxy;
}
return(nowProxy);
case MatchingStrategy.Object:
while (firstProxy.NextProxy != null)
{
if (nowProxy.ProxyNode == target)
{
return(nowProxy);
}
nowProxy = nowProxy.NextProxy;
}
return(nowProxy);
default:
return(null);
}
}
public void RemoveNode()
{
IChainRoutingNodeProxy removeNode = GetLastProxy();
removeNode.LastProxy.NextProxy = null;
}
