///LA TODO Protection ?? What if several subscribers at the same time
/// Not needed since all calls go through the participant which is synched
public ISendDataHandler GetSendDataHandler(Topic t, Participant participant)
{
// In the case that we use the same port for several topics, we need to find the sender for the transport::address::port used
string key = t.GetTransport() + "::" + t.GetDomainAddress() + "::" + t.GetPort();
if (SendDataHandlers.ContainsKey(key))
{
return(SendDataHandlers[key]);
}
try
{
// Get the local interface, doing a translation from subnet if necessary
string localIF = Domain.DoSubnetTranslation(participant.getDomain().GetLocalInterface());
ISendDataHandler sender = null;
if (t.GetTransport().Equals(Topic.TRANSPORT_MC))
{
sender = new McSendDataHandler(t, localIF);
}
else if (t.GetTransport().Equals(Topic.TRANSPORT_TCP))
{
sender = new TcpSendDataHandler(t, localIF);
}
if (sender != null)
{
SendDataHandlers.Add(key, sender);
return(sender);
}
// We don't want to add the udp handler to the handler list, so handle this last
if (t.GetTransport().Equals(Topic.TRANSPORT_UDP))
{
if (udpSendDataHandler == null)
{
// We have only one sender for all topics, so use the domain value for buffer size
udpSendDataHandler = new McUdpSendDataHandler(
participant.getDomain().GetOutSocketBufferSize(),
localIF);
// Setup a listener on the participant info data published by participants on our domain.
// We use the information for topics with UDP as transport, to know the destination for UDP sends
// ie. we extract ip and port from the information and add it to our McUdpSendDataHandler
partInfoListener = new ParticipantInfoDataListener(participant, udpSendDataHandler);
partInfoSub = new Subscriber(participant.CreateParticipantInfoTopic());
partInfoSub.newDataDefault += new NewDataDefaultEventHandler(partInfoListener.SubscriberNewData);
partInfoSub.Start();
}
return(udpSendDataHandler);
}
throw new CommException("No such Transport " + t.GetTransport());
}
catch (System.IO.IOException ex)
{
throw new CommException("Error creating SendDataHandler. IOException -->" + ex.Message);
}
}
private void Init()
{
try
{
this.sendDataHandler = this.participant.GetSendDataHandler(topic);
Start();
}
catch (Exception ex)
{
Logger.ExceptionLogger.LogMessage(this.GetType().Name + " Init: " + ex.ToString());
}
}
public ISendDataHandler GetSendDataHandler(Topic topic)
{
ISendDataHandler sdh = this.sendDataHandlerFactory.GetSendDataHandler(topic, this);
if (sdh != null)
{
lock (partInfoData)
{
partInfoData.publishTopics.Add(new TopicInfoData(topic));
}
}
return(sdh);
}
/// <summary>
/// Start the publisher (necessary when using TCP as transport and it has been stopped)
/// </summary>
public void Start()
{
if (!started)
{
try
{
// Tell the sendDataHandler that we need it
this.sendDataHandler = this.participant.GetSendDataHandler(topic);
this.sendDataHandler.AddPublisher(this);
started = true;
}
catch (Exception ex)
{
Logger.ExceptionLogger.LogMessage(this.GetType().Name + " Init: " + ex.ToString());
}
}
}
///LA TODO Protection ?? What if several subscribers at the same time
/// Not needed since all calls go through the participant which is synched
public ISendDataHandler GetSendDataHandler(Topic t, Participant participant)
{
// Get the local interface, doing a translation from subnet if necessary
string localIF = InetAddress.DoSubnetTranslation(t.GetLocalInterface());
string key = MakeKey(t, localIF);
if (SendDataHandlers.ContainsKey(key))
{
ISendDataHandler sender = SendDataHandlers[key];
if (t.GetTransport().Equals(Topic.TRANSPORT_UDP))
{
PostSetup(t, participant, (McUdpSendDataHandler)sender);
}
return(sender);
}
try
{
ISendDataHandler sender = null;
if (t.GetTransport().Equals(Topic.TRANSPORT_MC))
{
sender = new McSendDataHandler(t, localIF, t.GetTimeToLive());
}
else if (t.GetTransport().Equals(Topic.TRANSPORT_TCP))
{
sender = new TcpSendDataHandler(t, localIF);
}
else if (t.GetTransport().Equals(Topic.TRANSPORT_UDP))
{
// We have only one sender for all topics on an interface, so use the domain value for buffer size
sender = new McUdpSendDataHandler(participant.getDomain().GetOutSocketBufferSize(), localIF);
PostSetup(t, participant, (McUdpSendDataHandler)sender);
}
if (sender != null)
{
SendDataHandlers.Add(key, sender);
return(sender);
}
throw new CommException("No such Transport " + t.GetTransport());
}
catch (System.IO.IOException ex)
{
throw new CommException("Error creating SendDataHandler. IOException -->" + ex.Message);
}
}
private void Init()
{
try
{
this.sendDataHandler = this.participant.GetSendDataHandler(topic);
Start();
}
catch (Exception ex)
{
Logger.ExceptionLogger.LogMessage(this.GetType().Name + " Init: " + ex.ToString());
}
}