/// <summary>
/// Returns an existing client from a client id or creates a new one if not found.
/// </summary>
/// <param name="id">The identity of the client to return.</param>
/// <returns>The client object.</returns>
public IClient GetClient(string id) {
lock (this.SyncRoot) {
if (_clients.ContainsKey(id)) {
HttpRuntime.Cache.Get(id);
return _clients[id] as Client;
}
if (id == null || id == "nil" || id == string.Empty)
id = Guid.NewGuid().ToString("D");
Client client = new Client(this, id);
_clients[id] = client;
int clientLeaseTime = 1;
log.Debug(__Res.GetString(__Res.Client_Create, id));
Renew(client, clientLeaseTime);
//client.NotifyCreated();
return client;
}
}
internal void Renew(Client client, int clientLeaseTime) {
if (client.ClientLeaseTime == clientLeaseTime) {
//Keep the client in the cache.
HttpRuntime.Cache.Get(client.Id);
return;
}
lock (this.SyncRoot) {
if (client.ClientLeaseTime < clientLeaseTime) {
log.Debug(__Res.GetString(__Res.Client_Lease, client.Id, client.ClientLeaseTime, clientLeaseTime));
client.SetClientLeaseTime(clientLeaseTime);
}
if (clientLeaseTime == 0) {
log.Debug(__Res.GetString(__Res.Client_Lease, client.Id, client.ClientLeaseTime, clientLeaseTime));
client.SetClientLeaseTime(0);
}
if (client.ClientLeaseTime != 0) {
HttpRuntime.Cache.Remove(client.Id);
// Add the FlexClient to the Cache with the expiration item
HttpRuntime.Cache.Insert(client.Id, client, null,
Cache.NoAbsoluteExpiration,
new TimeSpan(0, client.ClientLeaseTime, 0),
CacheItemPriority.NotRemovable, new CacheItemRemovedCallback(this.RemovedCallback));
} else
HttpRuntime.Cache.Remove(client.Id);
}
}