find Serial Port Names - Java Native OS

Java examples for Native OS:Comm Port

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Description

find Serial Port Names

Demo Code


import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import javax.comm.CommPort;
import javax.comm.CommPortIdentifier;
import javax.comm.PortInUseException;

public class Main{
    //from  w  ww.  ja  v  a 2s .  c  om
    public static final int OPEN_TIMEOUT = 200;
    
    public static List<String> findSerialPortNames() {
        List<String> pnames = new ArrayList<String>();

        Enumeration ports = CommPortIdentifier.getPortIdentifiers();
        while (ports.hasMoreElements()) {
            CommPortIdentifier cport = (CommPortIdentifier) ports
                    .nextElement();
            if ((cport != null)
                    && (cport.getPortType() == CommPortIdentifier.PORT_SERIAL)) {
                try {
                    CommPort thePort = cport.open("CommPort", OPEN_TIMEOUT);
                    thePort.close();
                    pnames.add(cport.getName());
                } catch (PortInUseException e) {
                    System.out.println("Port " + cport.getName()
                            + " is in use.");
                    e.printStackTrace();
                } catch (Exception e) {
                    System.err.println("Failed to open port "
                            + cport.getName());
                    e.printStackTrace();
                }
            }
        }

        return pnames;
    }
}

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