96 lines
3.1 KiB
Java
96 lines
3.1 KiB
Java
// uniCenta oPOS - Touch Friendly Point Of Sale
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// Copyright (c) 2009-2023 uniCenta & previous Openbravo POS works
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// https://unicenta.com
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//
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// This file is part of uniCenta oPOS
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//
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// uniCenta oPOS is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// uniCenta oPOS is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with uniCenta oPOS. If not, see <http://www.gnu.org/licenses/>.
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package com.unicenta.pos.scale;
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import com.fazecast.jSerialComm.SerialPort;
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import com.fazecast.jSerialComm.SerialPortDataListener;
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import com.fazecast.jSerialComm.SerialPortEvent;
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public class ScaleSamsungEspV2 implements Scale {
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private String result;
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private final String m_sPortScale;
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/** Creates a new instance of ScaleComm
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* @param sPortPrinter */
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public ScaleSamsungEspV2(String sPortPrinter) {
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m_sPortScale = sPortPrinter;
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}
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private final SerialPortDataListener dataListener = new SerialPortDataListener() {
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@Override
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public int getListeningEvents() {
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return SerialPort.LISTENING_EVENT_DATA_AVAILABLE;
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}
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@Override
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public void serialEvent(SerialPortEvent event) {
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if (event.getEventType() == SerialPort.LISTENING_EVENT_DATA_AVAILABLE) {
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SerialPort serialPort = (SerialPort) event.getSerialPort();
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byte[] newData = new byte[serialPort.bytesAvailable()];
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serialPort.readBytes(newData, newData.length);
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String receivedData = new String(newData);
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result = result + receivedData;
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}
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}
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};
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/**
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*
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* @return
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*/
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@Override
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public Double readWeight() {
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// Configura los parámetros del puerto serie
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SerialPort serialPort = SerialPort.getCommPort(m_sPortScale);
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serialPort.setBaudRate(4800);
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serialPort.setNumDataBits(8);
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serialPort.setNumStopBits(1);
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serialPort.setParity(1);
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// Abre el puerto serie
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if (serialPort.openPort()) {
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// Agrega el objeto de escucha al puerto serie
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serialPort.addDataListener(dataListener);
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// Escribe en el puerto serie
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result = "";
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byte[] data = new byte[] {0x24};
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serialPort.writeBytes(data, data.length);
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// Espera unos segundos para recibir la respuesta (puedes ajustar este tiempo)
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try {
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Thread.sleep(1000);
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} catch (InterruptedException e) {}
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// Cierra el puerto serie
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serialPort.closePort();
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}
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try {
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return Double.valueOf(result);
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} catch (NumberFormatException e) {
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return 0.0;
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}
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}
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}
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