/// <summary>
/// Implements IOutboundTransport.UnsubscribeClient
/// </summary>
public void UnsubscribeClient(string clientId)
{
_listlock.AcquireReaderLock(DEFAULT_JOIN_TIMEOUT);
try
{
if (!_clients.ContainsKey(clientId))
{
throw new ClientNotSubscribedException();
}
LockCookie ck = _listlock.UpgradeToWriterLock(DEFAULT_JOIN_TIMEOUT);
try
{
UdpClientExpire client = _clients[clientId];
_clients.Remove(clientId);
client.Client.Close();
}
catch (Exception ex)
{
throw new TransportException("Unable to unsubscribe client", ex);
}
finally
{
_listlock.DowngradeFromWriterLock(ref ck);
}
}
finally
{
_listlock.ReleaseReaderLock();
}
}
/// <summary>
///
/// </summary>
/// <param name="inputInstructions">List of input parameters (required):
/// <list>
/// <item>ip: IP address of client, or of another machine that will receive logs</item>
/// <item>port: UDP port on which the destination will be listening</item>
/// </list>
/// </param>
/// <param name="outputInstructions">List of client instructions:
/// <list>
/// <item>ttl: Time To Live in milliseconds</item>
/// </list>
/// </param>
/// <returns></returns>
public string SubscribeClient(IEnumerable <KeyValuePair <string, string> > inputInstructions,
out IEnumerable <KeyValuePair <string, string> > outputInstructions)
{
if (_disposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
outputInstructions = new Dictionary <string, string>();
((Dictionary <string, string>)outputInstructions).Add("ttl", SubscriptionTtl.ToString());
try
{
string ipstring = null, portstring = null;
foreach (KeyValuePair <string, string> kvp in inputInstructions)
{
if (kvp.Key.Equals("ip"))
{
ipstring = kvp.Value;
}
if (kvp.Key.Equals("port"))
{
portstring = kvp.Value;
}
}
if (string.IsNullOrEmpty(ipstring))
{
throw new TransportException("Field \"ip\" is required for subscription");
}
int port;
if (!int.TryParse(portstring, NumberStyles.Integer, CultureInfo.InvariantCulture, out port))
{
throw new TransportException("Invalid port number");
}
if (port < 1 || port > 65535)
{
throw new TransportException("Invalid port number");
}
IPAddress client;
if (!IPAddress.TryParse(ipstring, out client))
{
throw new TransportException("Invalid IP address");
}
string clientid = ipstring + ":" + port;
UdpClientExpire newClient = new UdpClientExpire
{
Client = new UdpClient(ipstring, port), LastRefresh = DateTime.Now
};
_listlock.AcquireWriterLock(DEFAULT_JOIN_TIMEOUT);
try
{
_clients.Add(clientid, newClient);
}
finally
{
_listlock.ReleaseWriterLock();
}
return(clientid);
}
catch (TransportException ex)
{
ex.Data["input"] = inputInstructions;
throw;
}
catch (Exception ex)
{
TransportException e = new TransportException("Unable to subscribe client", ex);
if (inputInstructions != null)
{
e.Data["input"] = inputInstructions;
}
throw e;
}
}
