Amqp.Listener.ConnectionListener.ListenerSaslProfile.OnCommand C# (CSharp) Method

            protected override DescribedList OnCommand(DescribedList command)
            {
                if (this.innerProfile == null)
                {
                    if (command.Descriptor.Code == Codec.SaslInit.Code)
                    {
                        var init = (SaslInit)command;
                        SaslMechanism saslMechanism;
                        if (!this.listener.saslSettings.TryGetMechanism(init.Mechanism, out saslMechanism))
                        {
                            throw new AmqpException(ErrorCode.NotImplemented, init.Mechanism);
                        }

                        this.innerProfile = saslMechanism.CreateProfile();
                    }
                    else
                    {
                        throw new AmqpException(ErrorCode.NotAllowed, command.Descriptor.Name);
                    }
                }

                return this.innerProfile.OnCommandInternal(command);
            }
        }