Matevž Gačnik's Weblog

Update: Memory persistance included

In my previous posts I said I will write a SQL based persistence provider for Plumbwork.Orange WS-Eventing implementation and help John Bristowe a bit.

It's done now, as is memory based persistance option, but since http://www.gotdotnet.com still has problems with workspaces, I cannot upload it.

Classes can be downloaded here:

• SqlSubscriptionManager.cs.zip
• MemorySubscriptionManager.cs.zip.

All you need to do is replace one line in SubscriptionManagerFactory.cs:

return new XmlSubscriptionManager() as ISubscriptionManager;

With:

return new SqlSubscriptionManager() as ISubscriptionManager;

or

return new MemorySubscriptionManager() as ISubscriptionManager;

Since some members of the workspace are already working on configuration application block integration, all config data should go in there someday.

My implementation now uses SQL Server as a subscription storage for durable WS-Eventing subscriptions. System.Collections.Hashtable is used in memory based persistance model. Complete support includes:

• Creating a subscription
• Removing a subscription
• Renewing a subscription
• Expiring a subscription

When GDN Workspaces come back online, I will post this to Plumbwork.Orange.