protected virtual MessageStatus HandlePing(ApolloQueue targetQueue, IMessage message, CancellationToken?token)
{
var response = MessageFactory.CreateAcknowledgment(message);
response[nameof(PingStats.ServedBy)] = Communicator.GetState <string>(ApolloConstants.RegisteredAsKey);
response[nameof(PingStats.TimeRequestEnqueuedUtc)] = message.EnqueuedTimeUtc;
Communicator.SendToClientsAsync(response);
return(MessageStatus.Complete);
}
private MessageStatus AliasOwnershipRequestReceived(ApolloQueue queue, IMessage m, CancellationToken?cancelToken)
{
if (_storage.CheckOwnership(m.GetStringProperty(DesiredAliasKey), Guid.Parse(m.GetStringProperty(AliasTokenKey)), m.ReplyToSession))
{
var reply = MessageFactory.CreateAcknowledgment(m);
reply.CopyPropertiesFrom(m);
Communicator.SendToClientsAsync(reply);
Logger.Info($"{m.Identifier} granted ownership of alias '{m.GetStringProperty(DesiredAliasKey)}'");
}
else
{
Logger.Info($"{m.Identifier} denied ownership of alias '{m.GetStringProperty(DesiredAliasKey)}'");
Communicator.SendToClientsAsync(MessageFactory.CreateNegativeAcknowledgment(m, $"Token did not match the one registered for {m.GetStringProperty(DesiredAliasKey)}"));
}
return(MessageStatus.Complete);
}
private MessageStatus AliasOwnershipClaimReceived(ApolloQueue queue, IMessage m, CancellationToken?cancelToken)
{
var oldOwner = _storage.TakeOwnership(m.GetStringProperty(DesiredAliasKey), Guid.Parse(m.GetStringProperty(AliasTokenKey)), m.ReplyToSession);
if (oldOwner != null)
{
var lostOwnershipMessage = MessageFactory.CreateNewMessage("Lost Alias Ownership");
lostOwnershipMessage.TargetSession = oldOwner;
lostOwnershipMessage[DesiredAliasKey] = m.GetStringProperty(DesiredAliasKey);
Communicator.SendToClientsAsync(lostOwnershipMessage);
}
var reply = MessageFactory.CreateAcknowledgment(m);
reply.CopyPropertiesFrom(m);
Communicator.SendToClientsAsync(reply);
return(MessageStatus.Complete);
}
