/// <summary>
/// Creates a port from the specified settings node tree.
/// </summary>
/// <param name="portNode">The port node.</param>
/// <returns>The device port.</returns>
/// <exception cref="System.Exception">
/// Invalid port format.
/// </exception>
protected virtual IDevicePort CreatePort(SettingsNode portNode)
{
SettingsNode tcpAddrNode = null;
if (portNode.ContainsName("Address"))
{
tcpAddrNode = portNode["Address"];
}
else if (portNode.ContainsName("IPAddress"))
{
tcpAddrNode = portNode["IPAddress"];
}
else if (portNode.ContainsName("IpAddress"))
{
tcpAddrNode = portNode["IpAddress"];
}
else if (portNode.ContainsName("TCPAddress"))
{
tcpAddrNode = portNode["TCPAddress"];
}
else if (portNode.ContainsName("TcpAddress"))
{
tcpAddrNode = portNode["TcpAddress"];
}
if (tcpAddrNode != null)
{
string ipAddrName = tcpAddrNode.GetValueAs <string>();
IPAddress ipAddress;
if (!IPAddress.TryParse(ipAddrName, out ipAddress))
{
throw new Exception(String.Format("'{0}' is an invalid IP address.", ipAddrName));
}
DevicePortTcp tcpPort = new DevicePortTcp(ipAddress);
if (portNode.ContainsName("Port"))
{
tcpPort.Port = portNode["Port"].GetValueAs <int>();
}
if (portNode.ContainsName("ReplyAddress"))
{
string replyAddrName = portNode["ReplyAddress"].GetValueAs <string>();
IPAddress replyAddress;
if (!IPAddress.TryParse(replyAddrName, out replyAddress))
{
throw new Exception(String.Format("'{0}' is an invalid reply IP address.", replyAddrName));
}
tcpPort.ReplyAddress = replyAddress;
if (portNode.ContainsName("ReplyPort"))
{
tcpPort.ReplyPort = portNode["ReplyPort"].GetValueAs <int>();
}
}
return(tcpPort);
}
if (portNode.ContainsName("Number"))
{
int portNum = portNode["Number"].GetValueAs <int>();
return(new DevicePortNumber(portNum));
}
if (portNode.ContainsName("Name"))
{
string portName = portNode["Name"].GetValueAs <string>();
return(new DevicePortName(portName));
}
if (portNode.HasAValue)
{
string portShorthand = portNode.GetValueAs <string>();
return(CreatePort(portShorthand));
}
throw new Exception("Invalid port format.");
}