private void HandleAttachFrame(Attach attach)
{
if (State != LinkStateEnum.DETACHED && State != LinkStateEnum.ATTACH_SENT)
{
throw new AmqpException(ErrorCode.IllegalState, $"Received Attach frame but link state is {State.ToString()}.");
}
if (!IsInitiatingLink && IsSenderLink)
{
senderSettlementMode = (LinkSenderSettlementModeEnum)attach.SenderSettlementMode;
SourceAddress = attach.Source.Address;
}
if (!IsInitiatingLink && IsReceiverLink)
{
receiverSettlementMode = (LinkReceiverSettlementModeEnum)attach.ReceiverSettlementMode;
TargetAddress = attach.Target.Address;
}
if (State == LinkStateEnum.DETACHED)
{
State = LinkStateEnum.ATTACH_RECEIVED;
attach.Handle = this.LocalHandle;
attach.IsReceiver = this.IsReceiverLink;
attach.SenderSettlementMode = (byte)senderSettlementMode;
attach.ReceiverSettlementMode = (byte)receiverSettlementMode;
attach.InitialDelieveryCount = this.initialDeliveryCount;
// send back a cooresponding attach frame
Session.SendFrame(attach);
}
if (State == LinkStateEnum.ATTACH_SENT)
{
if (IsReceiverLink)
{
if (attach.InitialDelieveryCount == null)
{
throw new AmqpException(ErrorCode.InvalidField, "initial-delivery-count must be set on attach from of sender.");
}
// expecting initial delivery count
DeliveryCount = attach.InitialDelieveryCount.Value;
}
}
State = LinkStateEnum.ATTACHED;
Session.Connection.Container.OnLinkAttached(this);
}
public AmqpLink(AmqpSession session, string name, uint localHandle, bool isReceiverLink, bool isInitiatingLink, uint remoteHandle)
{
this.Name = name;
this.Session = session;
this.LocalHandle = remoteHandle;
this.IsReceiverLink = isReceiverLink;
this.IsSenderLink = !isReceiverLink;
this.IsInitiatingLink = isInitiatingLink;
this.RemoteHandle = localHandle;
this.State = LinkStateEnum.DETACHED;
senderSettlementMode = LinkSenderSettlementModeEnum.Mixed;
receiverSettlementMode = LinkReceiverSettlementModeEnum.First;
DeliveryCount = initialDeliveryCount = 0;
}
private void HandleAttachFrame(Attach attach)
{
if (State != LinkStateEnum.DETACHED && State != LinkStateEnum.ATTACH_SENT)
throw new AmqpException(ErrorCode.IllegalState, $"Received Attach frame but link state is {State.ToString()}.");
if (!IsInitiatingLink && IsSenderLink)
{
senderSettlementMode = (LinkSenderSettlementModeEnum)attach.SenderSettlementMode;
SourceAddress = attach.Source.Address;
}
if (!IsInitiatingLink && IsReceiverLink)
{
receiverSettlementMode = (LinkReceiverSettlementModeEnum)attach.ReceiverSettlementMode;
TargetAddress = attach.Target.Address;
}
if (State == LinkStateEnum.DETACHED)
{
State = LinkStateEnum.ATTACH_RECEIVED;
attach.Handle = this.LocalHandle;
attach.IsReceiver = this.IsReceiverLink;
attach.SenderSettlementMode = (byte)senderSettlementMode;
attach.ReceiverSettlementMode = (byte)receiverSettlementMode;
attach.InitialDelieveryCount = this.initialDeliveryCount;
// send back a cooresponding attach frame
Session.SendFrame(attach);
}
if (State == LinkStateEnum.ATTACH_SENT)
{
if (IsReceiverLink)
{
if (attach.InitialDelieveryCount == null)
throw new AmqpException(ErrorCode.InvalidField, "initial-delivery-count must be set on attach from of sender.");
// expecting initial delivery count
DeliveryCount = attach.InitialDelieveryCount.Value;
}
}
State = LinkStateEnum.ATTACHED;
Session.Connection.Container.OnLinkAttached(this);
}