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A fork of the RXTX library with a focus on ease of use and embeddability in other libraries.

There is a newer version: 5.2.1

package gnu.io.factory;

import java.net.URI;
import java.net.UnknownHostException;

import gnu.io.NoSuchPortException;
import gnu.io.PortInUseException;
import gnu.io.UnsupportedCommOperationException;
import gnu.io.rfc2217.TelnetSerialPort;

public class RFC2217PortCreator implements SerialPortCreator {

	private final static String PROTOCOL = "rfc2217";
	
	@Override
	public boolean isApplicable(String portName, Class expectedClass) {
		try {
			if(expectedClass.isAssignableFrom(TelnetSerialPort.class)) {
				URI uri = URI.create(portName);
				return uri.getScheme().equalsIgnoreCase(PROTOCOL);
			}
			return false;
		} catch(Throwable t) {
			return false;
		}
	}

	/**
	 * @throws UnsupportedCommOperationException if connection to the remote serial port fails.
	 * @throws NoSuchPortException if the host does not exist.
	 */
	@Override
	public TelnetSerialPort createPort(String portName)
			throws NoSuchPortException, UnsupportedCommOperationException, PortInUseException {
		 URI url = URI.create(portName);
	      try
	      {
	        TelnetSerialPort telnetSerialPort = new TelnetSerialPort();
	        telnetSerialPort.getTelnetClient().connect(url.getHost(), url.getPort());
	        return telnetSerialPort;
	      }
	      catch(UnknownHostException e) {
	    	  throw new NoSuchPortException("Host "+url.getHost()+" not available", e);
	      }
	      catch (Exception e)
	      {
	    	  throw new UnsupportedCommOperationException("Unable to establish remote connection to serial port "+portName, e);
	      }
	}

	@Override
	public String getProtocol() {
		return PROTOCOL;
	}

}