Examples with UnsupportedCommOperationException gnu.io.UnsupportedCommOperationException used on opensource projects

Example 21 with UnsupportedCommOperationException

use of gnu.io.UnsupportedCommOperationException in project openhab1-addons by openhab.

the class DSMRPort method open.

/**
     * Opens the Operation System Serial Port
     * <p>
     * This method opens the port and set Serial Port parameters according to
     * the DSMR specification. Since the specification is clear about these
     * parameters there are not configurable.
     * <p>
     * If there are problem while opening the port, it is the responsibility of
     * the calling method to handle this situation (and for example close the
     * port again).
     * <p>
     * Opening an already open port is harmless. The method will return
     * immediately
     *
     * @return true if opening was successful (or port was already open), false
     *         otherwise
     */
private boolean open() {
    synchronized (portLock) {
        // Sanity check
        if (portState != PortState.CLOSED) {
            return true;
        }
        try {
            // Add non standard port names if not exists (fixes part of #4175)
            if (!portExists(portName)) {
                logger.warn("Port {} does not exists according to the system, we will still try to open it", portName);
            }
            // Opening Operating System Serial Port
            logger.debug("Creating CommPortIdentifier");
            CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(portName);
            logger.debug("Opening CommPortIdentifier");
            CommPort commPort = portIdentifier.open("org.openhab.binding.dsmr", readTimeoutMSec);
            logger.debug("Configure serial port");
            serialPort = (SerialPort) commPort;
            serialPort.enableReceiveThreshold(1);
            serialPort.enableReceiveTimeout(readTimeoutMSec);
            // Configure Serial Port based on specified port speed
            logger.debug("Configure serial port parameters: {}", portSettings);
            if (portSettings != null) {
                serialPort.setSerialPortParams(portSettings.getBaudrate(), portSettings.getDataBits(), portSettings.getStopbits(), portSettings.getParity());
                /* special settings for low speed port (checking reference here) */
                if (portSettings == DSMRPortSettings.LOW_SPEED_SETTINGS) {
                    serialPort.setDTR(false);
                    serialPort.setRTS(true);
                }
            } else {
                logger.error("Invalid port parameters, closing port:{}", portSettings);
                return false;
            }
        } catch (NoSuchPortException nspe) {
            logger.error("Could not open port: {}", portName, nspe);
            return false;
        } catch (PortInUseException piue) {
            logger.error("Port already in use: {}", portName, piue);
            return false;
        } catch (UnsupportedCommOperationException ucoe) {
            logger.error("Port does not support requested port settings " + "(invalid dsmr:portsettings parameter?): {}", portName, ucoe);
            return false;
        }
        // SerialPort is ready, open the reader
        logger.info("SerialPort opened successful");
        try {
            bis = new BufferedInputStream(serialPort.getInputStream());
        } catch (IOException ioe) {
            logger.error("Failed to get inputstream for serialPort. Closing port", ioe);
            return false;
        }
        logger.info("DSMR Port opened successful");
        return true;
    }
}

Example 22 with UnsupportedCommOperationException

use of gnu.io.UnsupportedCommOperationException in project JMRI by JMRI.

the class SerialDriverAdapter method openPort.

@Override
@SuppressWarnings("CallToPrintStackTrace")
public String openPort(String portName, String appName) {
    try {
        // get and open the primary port
        CommPortIdentifier portID = CommPortIdentifier.getPortIdentifier(portName);
        try {
            // name of program, msec to wait
            activeSerialPort = (SerialPort) portID.open(appName, 2000);
        } catch (PortInUseException p) {
            return handlePortBusy(p, portName, log);
        }
        // try to set it for serial
        try {
            setSerialPort();
        } catch (gnu.io.UnsupportedCommOperationException e) {
            log.error("Cannot set serial parameters on port " + portName + ": " + e.getMessage());
            return "Cannot set serial parameters on port " + portName + ": " + e.getMessage();
        }
        // set framing (end) character
        try {
            log.debug("Serial framing was observed as: " + activeSerialPort.isReceiveFramingEnabled() + " " + activeSerialPort.getReceiveFramingByte());
        } catch (Exception ef) {
            log.debug("failed to set serial framing: " + ef);
        }
        // set timeout; framing should work before this anyway
        try {
            activeSerialPort.enableReceiveTimeout(10);
            log.debug("Serial timeout was observed as: " + activeSerialPort.getReceiveTimeout() + " " + activeSerialPort.isReceiveTimeoutEnabled());
        } catch (UnsupportedCommOperationException et) {
            log.info("failed to set serial timeout: " + et);
        }
        // get and save stream
        serialStream = activeSerialPort.getInputStream();
        // purge contents, if any
        purgeStream(serialStream);
        // report status?
        if (log.isInfoEnabled()) {
            // report now
            log.info(portName + " port opened at " + activeSerialPort.getBaudRate() + " baud with" + " DTR: " + activeSerialPort.isDTR() + " RTS: " + activeSerialPort.isRTS() + " DSR: " + activeSerialPort.isDSR() + " CTS: " + activeSerialPort.isCTS() + "  CD: " + activeSerialPort.isCD());
        }
        if (log.isDebugEnabled()) {
            // report additional status
            log.debug(" port flow control shows " + (activeSerialPort.getFlowControlMode() == SerialPort.FLOWCONTROL_RTSCTS_OUT ? "hardware flow control" : "no flow control"));
        }
        if (log.isDebugEnabled()) {
            // arrange to notify later
            activeSerialPort.addEventListener(new SerialPortEventListener() {

                @Override
                public void serialEvent(SerialPortEvent e) {
                    int type = e.getEventType();
                    switch(type) {
                        case SerialPortEvent.DATA_AVAILABLE:
                            log.info("SerialEvent: DATA_AVAILABLE is " + e.getNewValue());
                            return;
                        case SerialPortEvent.OUTPUT_BUFFER_EMPTY:
                            log.info("SerialEvent: OUTPUT_BUFFER_EMPTY is " + e.getNewValue());
                            return;
                        case SerialPortEvent.CTS:
                            log.info("SerialEvent: CTS is " + e.getNewValue());
                            return;
                        case SerialPortEvent.DSR:
                            log.info("SerialEvent: DSR is " + e.getNewValue());
                            return;
                        case SerialPortEvent.RI:
                            log.info("SerialEvent: RI is " + e.getNewValue());
                            return;
                        case SerialPortEvent.CD:
                            log.info("SerialEvent: CD is " + e.getNewValue());
                            return;
                        case SerialPortEvent.OE:
                            log.info("SerialEvent: OE (overrun error) is " + e.getNewValue());
                            return;
                        case SerialPortEvent.PE:
                            log.info("SerialEvent: PE (parity error) is " + e.getNewValue());
                            return;
                        case SerialPortEvent.FE:
                            log.info("SerialEvent: FE (framing error) is " + e.getNewValue());
                            return;
                        case SerialPortEvent.BI:
                            log.info("SerialEvent: BI (break interrupt) is " + e.getNewValue());
                            return;
                        default:
                            log.info("SerialEvent of unknown type: " + type + " value: " + e.getNewValue());
                    }
                }
            });
            try {
                activeSerialPort.notifyOnFramingError(true);
            } catch (Exception e) {
                log.debug("Could not notifyOnFramingError: " + e);
            }
            try {
                activeSerialPort.notifyOnBreakInterrupt(true);
            } catch (Exception e) {
                log.debug("Could not notifyOnBreakInterrupt: " + e);
            }
            try {
                activeSerialPort.notifyOnParityError(true);
            } catch (Exception e) {
                log.debug("Could not notifyOnParityError: " + e);
            }
            try {
                activeSerialPort.notifyOnOverrunError(true);
            } catch (Exception e) {
                log.debug("Could not notifyOnOverrunError: " + e);
            }
        }
        opened = true;
    } catch (gnu.io.NoSuchPortException p) {
        return handlePortNotFound(p, portName, log);
    } catch (IOException ex) {
        log.error("Unexpected exception while opening port " + portName + " trace follows: " + ex);
        ex.printStackTrace();
        return "Unexpected error while opening port " + portName + ": " + ex;
    } catch (TooManyListenersException ex) {
        log.error("Unexpected exception while opening port " + portName + " trace follows: " + ex);
        ex.printStackTrace();
        return "Unexpected error while opening port " + portName + ": " + ex;
    }
    // normal operation
    return null;
}