private void init() {
try {
if (m_out == null) {
m_PortIdPrinter = CommPortIdentifier.getPortIdentifier(m_sPort); // Tomamos el puerto
m_CommPortPrinter = m_PortIdPrinter.open("PORTID", 2000); // Abrimos el puerto
m_out = m_CommPortPrinter.getOutputStream(); // Tomamos el chorro de escritura
if (m_PortIdPrinter.getPortType() == CommPortIdentifier.PORT_SERIAL) {
((SerialPort) m_CommPortPrinter)
.setSerialPortParams(
9600,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE); // Configuramos el puerto
} else if (m_PortIdPrinter.getPortType() == CommPortIdentifier.PORT_PARALLEL) {
((ParallelPort) m_CommPortPrinter).setMode(1);
}
}
} catch (Exception e) {
m_PortIdPrinter = null;
m_CommPortPrinter = null;
m_out = null;
m_in = null;
// } catch (NoSuchPortException e) {
// } catch (PortInUseException e) {
// } catch (UnsupportedCommOperationException e) {
// } catch (IOException e) {
}
}
@Override
public void stopPolling() {
if (_comPort != null && _usable && _isQuestionSupported) {
((SerialPort) _comPort).removeEventListener();
_comPort.close();
}
}
/**
* @return A HashSet containing the CommPortIdentifier for all serial ports that are not currently
* being used.
*/
@SuppressWarnings({"rawtypes"})
private static HashSet<CommPortIdentifier> getAvailableSerialPorts() {
HashSet<CommPortIdentifier> h = new HashSet<CommPortIdentifier>();
Enumeration thePorts = CommPortIdentifier.getPortIdentifiers();
while (thePorts.hasMoreElements()) {
CommPortIdentifier com = (CommPortIdentifier) thePorts.nextElement();
switch (com.getPortType()) {
case CommPortIdentifier.PORT_SERIAL:
try {
CommPort thePort = com.open("CommUtil", 50);
thePort.close();
h.add(com);
} catch (PortInUseException e) {
System.out.println("Port, " + com.getName() + ", is in use.");
} catch (Exception e) {
System.err.println("Failed to open port " + com.getName());
e.printStackTrace();
}
}
}
return h;
}
/** @param data */
@Override
protected void internalWrite(byte[] data) {
try {
if (m_out == null) {
m_PortIdPrinter =
CommPortIdentifier.getPortIdentifier(
m_sPortPrinter); // Tomamos el puerto
m_CommPortPrinter = m_PortIdPrinter.open("PORTID", 2000); // Abrimos el puerto
m_out = m_CommPortPrinter.getOutputStream(); // Tomamos el chorro de escritura
if (m_PortIdPrinter.getPortType() == CommPortIdentifier.PORT_SERIAL) {
((SerialPort) m_CommPortPrinter)
.setSerialPortParams(
9600,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE); // Configuramos el puerto
((SerialPort) m_CommPortPrinter)
.setFlowControlMode(
SerialPort
.FLOWCONTROL_RTSCTS_IN); // this line prevents the printer tmu220 to stop
// printing after +-18 lines printed
// this line prevents the printer tmu220 to stop printing after +-18 lines printed. Bug
// 8324
// But if added a regression error appears. Bug 9417, Better to keep it commented.
// ((SerialPort)m_CommPortPrinter).setFlowControlMode(SerialPort.FLOWCONTROL_RTSCTS_IN);
// Not needed to set parallel properties
// } else if (m_PortIdPrinter.getPortType() ==
// CommPortIdentifier.PORT_PARALLEL) {
// ((ParallelPort)m_CommPortPrinter).setMode(1);
}
}
m_out.write(data);
// JG 16 May 12 use multicatch
} catch (NoSuchPortException
| PortInUseException
| UnsupportedCommOperationException
| IOException e) {
System.err.println(e);
}
}