UOCL-241: Fixing scale exception

pom.xml

@@ -145,6 +145,11 @@
       <artifactId>rxtxcomm</artifactId>
       <version>2.2</version>
     </dependency>
+    <dependency>
+      <groupId>com.fazecast</groupId>
+      <artifactId>jSerialComm</artifactId>
+      <version>2.9.3</version>
+    </dependency>
     <dependency>
       <groupId>org.jpos</groupId>
       <artifactId>jpos</artifactId>

src/main/java/com/unicenta/pos/config/JPanelConfigPeripheral.java

@@ -358,6 +358,7 @@ public class JPanelConfigPeripheral extends javax.swing.JPanel implements PanelC
         jcboMachineScale.addItem("dialog1");
         jcboMachineScale.addItem("mtind221");        
         jcboMachineScale.addItem("samsungesp");
+        jcboMachineScale.addItem("samsungesp-v2");
 
         jcboSerialScale.addItem("COM1");
         jcboSerialScale.addItem("COM2");
@@ -612,6 +613,7 @@ public class JPanelConfigPeripheral extends javax.swing.JPanel implements PanelC
         if ("casiopd1".equals(sparam) || 
                 "dialog1".equals(sparam) || 
                 "samsungesp".equals(sparam) ||
+                "samsungesp-v2".equals(sparam) ||
                 "caspdii".equals(sparam) ||
                 "acompc100".equals(sparam) ||
                 "averyberkel6720".equals(sparam) ||                
@@ -820,6 +822,7 @@ public class JPanelConfigPeripheral extends javax.swing.JPanel implements PanelC
         if ("casiopd1".equals(sMachineScale) || 
                 "dialog1".equals(sMachineScale) || 
                 "samsungesp".equals(sMachineScale) ||
+                "samsungesp-v2".equals(sMachineScale) ||
                 "caspdii".equals(sMachineScale) ||
                 "acompc100".equals(sMachineScale) ||                
                 "averyberkel6720".equals(sMachineScale) ||                                
@@ -2307,6 +2310,7 @@ public class JPanelConfigPeripheral extends javax.swing.JPanel implements PanelC
         if ("casiopd1".equals(jcboMachineScale.getSelectedItem()) ||
             "dialog1".equals(jcboMachineScale.getSelectedItem()) ||
             "samsungesp".equals(jcboMachineScale.getSelectedItem()) ||
+            "samsungesp-v2".equals(jcboMachineScale.getSelectedItem()) ||
             "caspdii".equals(jcboMachineScale.getSelectedItem())||
             "acompc100".equals(jcboMachineScale.getSelectedItem())||                
             "averyberkel6720".equals(jcboMachineScale.getSelectedItem())||                                

src/main/java/com/unicenta/pos/scale/DeviceScale.java

@@ -56,6 +56,9 @@ public class DeviceScale {
             case "samsungesp":
                 m_scale = new ScaleSamsungEsp(sScaleParam1);
                 break;
+            case "samsungesp-v2":
+                m_scale = new ScaleSamsungEspV2(sScaleParam1);
+                break;
             case "caspdii":
                 m_scale = new ScaleCASPDII(sScaleParam1);
                 break;

src/main/java/com/unicenta/pos/scale/ScaleSamsungEspV2.java

@@ -0,0 +1,95 @@
+//    uniCenta oPOS  - Touch Friendly Point Of Sale
+//    Copyright (c) 2009-2023 uniCenta & previous Openbravo POS works
+//    https://unicenta.com
+//
+//    This file is part of uniCenta oPOS
+//
+//    uniCenta oPOS is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//   uniCenta oPOS is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU General Public License for more details.
+//
+//    You should have received a copy of the GNU General Public License
+//    along with uniCenta oPOS.  If not, see <http://www.gnu.org/licenses/>.
+
+package com.unicenta.pos.scale;
+
+import com.fazecast.jSerialComm.SerialPort;
+import com.fazecast.jSerialComm.SerialPortDataListener;
+import com.fazecast.jSerialComm.SerialPortEvent;
+
+public class ScaleSamsungEspV2 implements Scale {
+
+    private String result;
+    private final String m_sPortScale;
+
+    /** Creates a new instance of ScaleComm
+     * @param sPortPrinter */
+    public ScaleSamsungEspV2(String sPortPrinter) {
+        m_sPortScale = sPortPrinter;
+    }
+
+    private final SerialPortDataListener dataListener = new SerialPortDataListener() {
+        @Override
+        public int getListeningEvents() {
+            return SerialPort.LISTENING_EVENT_DATA_AVAILABLE;
+        }
+
+        @Override
+        public void serialEvent(SerialPortEvent event) {
+            if (event.getEventType() == SerialPort.LISTENING_EVENT_DATA_AVAILABLE) {
+                SerialPort serialPort = (SerialPort) event.getSerialPort();
+                byte[] newData = new byte[serialPort.bytesAvailable()];
+                serialPort.readBytes(newData, newData.length);
+                String receivedData = new String(newData);
+                result = result + receivedData;
+            }
+        }
+    };
+
+    /**
+     *
+     * @return
+     */
+    @Override
+    public Double readWeight() {
+
+        // Configura los parámetros del puerto serie
+        SerialPort serialPort = SerialPort.getCommPort(m_sPortScale);
+        serialPort.setBaudRate(4800);
+        serialPort.setNumDataBits(8);
+        serialPort.setNumStopBits(1);
+        serialPort.setParity(1);
+
+        // Abre el puerto serie
+        if (serialPort.openPort()) {
+
+            // Agrega el objeto de escucha al puerto serie
+            serialPort.addDataListener(dataListener);
+
+            // Escribe en el puerto serie
+            result = "";
+            byte[] data = new byte[] {0x24};
+            serialPort.writeBytes(data, data.length);
+
+            // Espera unos segundos para recibir la respuesta (puedes ajustar este tiempo)
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {}
+
+            // Cierra el puerto serie
+            serialPort.closePort();
+        }
+
+        try {
+            return Double.valueOf(result);
+        } catch (NumberFormatException e) {
+            return 0.0;
+        }
+    }
+}