/// <summary>
/// 客户端取消订阅
/// </summary>
/// <param name="unSubScribeFrame"></param>
/// <param name="stompBehavior"></param>
public void UnSubScribe(StompFrame unSubScribeFrame, StompBehavior stompBehavior)
{
lock (stompSubscribeDictionaryLock)
{
if (unSubScribeFrame.Headers.ContainsKey(StompHeaders.Id) && string.IsNullOrEmpty(unSubScribeFrame.Headers[StompHeaders.Id]))
{
string destinationOfsubid = stompBehavior.topicPathSubidDictionary.FirstOrDefault(d => d.Value == unSubScribeFrame.Headers[StompHeaders.Id]).Key;
if (stompSubscribeDictionary.ContainsKey(destinationOfsubid))
{
if (stompSubscribeDictionary[destinationOfsubid].ContainsKey(stompBehavior.ID))
{
stompSubscribeDictionary[destinationOfsubid].Remove(stompBehavior.ID);
}
}
}
}
}
/// <summary>
/// when stompBehavior closing,need remove subscribe
/// </summary>
/// <param name="stompBehavior"></param>
public void StompBehaviorOnClose(StompBehavior stompBehavior)
{
lock (stompSubscribeDictionaryLock)
{
foreach (var destination in stompBehavior.topicPathSubidDictionary.Keys)
{
if (stompSubscribeDictionary.ContainsKey(destination))
{
if (stompSubscribeDictionary[destination].ContainsKey(stompBehavior.ID))
{
stompSubscribeDictionary[destination].Remove(stompBehavior.ID);
if (stompSubscribeDictionary[destination].Count == 0)
{
stompSubscribeDictionary.Remove(destination);
}
}
}
}
}
}
/// <summary>
/// 添加一个新的订阅地址
/// </summary>
/// <param name="subScribeFrame">客户端的订阅数据包</param>
/// <param name="stompBehavior">客户端连接对象</param>
/// <returns>null:Success,not NULL:ERROR</returns>
public StompFrame SubScribe(StompFrame subScribeFrame, StompBehavior stompBehavior)
{
//* If the server cannot successfully create the subscription, the server MUST send the client an ERROR frame and disconnect the client.
lock (stompSubscribeDictionaryLock)
{
if (!subScribeFrame.Headers.ContainsKey(StompHeaders.Destination))
{
return(new ErrorFrame("Headers missing:'destination'", "SUBSCRIBE 包必须携带'destination'头,而且值不能为空.\nSUBSCRIBE Frame's headers MUST Contain 'destination',and the value MUST NOT null/empty", subScribeFrame));
}
else if (string.IsNullOrEmpty(subScribeFrame.Headers[StompHeaders.Destination]))
{
return(new ErrorFrame("Header['destination'] MUST NOT be null or empty", "SUBSCRIBE 包规定header['destination']的值不能为空.\nSUBSCRIBE Frame's header['destination']: MUST NOT be null/empty", subScribeFrame));
}
else if (!subscribeSupportTopicList.Contains(subScribeFrame.Headers[StompHeaders.Destination]))
{
return(new ErrorFrame("Stomp Server not support this destination", "Stomp Server not support this destination : '" + subScribeFrame.Headers[StompHeaders.Destination] + "'\n", subScribeFrame));
}
else if (!subScribeFrame.Headers.ContainsKey(StompHeaders.Id))//subid
{
return(new ErrorFrame("Headers missing: 'id'", "SUBSCRIBE 包必须携带'id'头,而且值不能为空.\nSUBSCRIBE Frame's headers MUST Contain 'id',and the value MUST uniquely" + "\nSince a single connection can have multiple open subscriptions with a server, an id header MUST be included in the frame to uniquely identify the subscription.", subScribeFrame));
}
else if (string.IsNullOrEmpty(subScribeFrame.Headers[StompHeaders.Id]))
{
return(new ErrorFrame("Header['id'] MUST NOT be null or empty,and MUST uniquely.", "SUBSCRIBE 包必须携带'id'头,而且值必须唯一.\nSUBSCRIBE Frame's header['id'] MUST NOT null/empty,and MUST uniquely.", subScribeFrame));
}
if (stompBehavior.topicPathSubidDictionary.Values.Contains(subScribeFrame.Headers[StompHeaders.Id]))// check id
{
if (stompBehavior.topicPathSubidDictionary.Keys.Contains(subScribeFrame.Headers[StompHeaders.Destination]) && stompBehavior.topicPathSubidDictionary[subScribeFrame.Headers[StompHeaders.Destination]] == subScribeFrame.Headers[StompHeaders.Id])
{
return(null);
}
else
{
// subid 已经用在了别的地址上
string destinationOfsubid = stompBehavior.topicPathSubidDictionary.FirstOrDefault(d => d.Value == subScribeFrame.Headers[StompHeaders.Id]).Key;
return(new ErrorFrame("SUBSCRIBE: ['id'] MUST uniquely", "this sub-id is alread been used with this destination:" + destinationOfsubid + ".\n sub-id MUST uniquely,please use another id", subScribeFrame));
//stompBehavior.topicPathSubidDictionary[subScribeFrame.Headers[StompHeaders.Destination]] = subScribeFrame.Headers[StompHeaders.Id];//update sub-id
}
}
if (stompBehavior.topicPathSubidDictionary.ContainsKey(subScribeFrame.Headers[StompHeaders.Destination]))//check destination
{
// 已经订阅过,id都匹配
if (stompBehavior.topicPathSubidDictionary[subScribeFrame.Headers[StompHeaders.Destination]] == subScribeFrame.Headers[StompHeaders.Id])
{
return(null);
}
else //换了一个sub-id
{
// destination已经匹配了一个sub-id
//return new ErrorFrame("SUBSCRIBE: ['destination'] already linked a sub-id", "this destination is alread linked a sub-id:" + stompBehavior.topicPathSubidDictionary[subScribeFrame.Headers[StompHeaders.Destination]] + ".\n Stomp Server Don't want client Subscribe one destination by many times.", subScribeFrame);
// update sub-id
stompBehavior.topicPathSubidDictionary[subScribeFrame.Headers[StompHeaders.Destination]] = subScribeFrame.Headers[StompHeaders.Id];
}
}
//
// ack ... Not support!
//
//
// Stomp1.0
// The body of the SUBSCRIBE command is ignored.
//
if (!stompBehavior.topicPathSubidDictionary.ContainsKey(subScribeFrame.Headers[StompHeaders.Destination]))
{
stompBehavior.topicPathSubidDictionary.Add(subScribeFrame.Headers[StompHeaders.Destination], subScribeFrame.Headers[StompHeaders.Id]);//stompBehavior<destination:id> Add
}
//SubscribeFlowDirction subscribeFlowDirction = GetSubscribeFlowDirction(subScribeFrame.Headers[StompHeaders.Destination]);
//if (subscribeFlowDirction == SubscribeFlowDirction.Application || subscribeFlowDirction == SubscribeFlowDirction.Unkonw)//Unkonw is Error ?
//{
// return null;
//}
if (stompSubscribeDictionary.ContainsKey(subScribeFrame.Headers[StompHeaders.Destination]))
{
var idStompBehaviorKV = stompSubscribeDictionary[subScribeFrame.Headers[StompHeaders.Destination]];
if (!idStompBehaviorKV.ContainsKey(stompBehavior.ID))
{
stompSubscribeDictionary[subScribeFrame.Headers[StompHeaders.Destination]].Add(stompBehavior.ID, stompBehavior);
}
}
else
{
stompSubscribeDictionary.Add(subScribeFrame.Headers[StompHeaders.Destination], new Dictionary <string, StompBehavior>()
{
{ stompBehavior.ID, stompBehavior }
});
}
}
return(null);
}
