Package com.gmv.its.deepsy.hal.serialport

Classes
interface	MessagereceivedEvent
	Message received event. More...
interface	Serialport
	Serialport. More...
interface	SerialportConfig
	Serialport Configuration. More...
interface	SerialportEvent
	Serialport event. More...
enum	SerialportFlowcontrol
interface	SerialportInfo
	Serialport Information. More...
class	SerialportLowLevelException
	Serialport low level exception. More...
interface	SerialportManager
	Serialport Manager. More...
class	SerialportNotAvailableException
	Serialport not available exception. More...
class	SerialportObserver
	Serialport observer. More...
enum	SerialportParity
enum	SerialportProtocol

Detailed Description

To work with Deepsy serialport service it is necessary to use DeepsyserialportManager located in com.gmv.its.deepsy.serialport for getting the initial serialportManager object.

SerialportManager serialportManager = DeepsySerialportManager.getInstance();

DeepsySerialportManager.getInstance has an optional parameter indicating the ip address of remote service. For instance:

SerialportManager serialportManager = DeepsySerialportManager.getInstance("192.168.1.10");

SerialportManager is an AutoCloseable interface. An object that may hold resources (such as file or socket handles) until it is closed. The close() method of an AutoCloseable object is called automatically when exiting a try-with-resources block for which the object has been declared in the resource specification header. This construction ensures prompt release, avoiding resource exhaustion exceptions and errors that may otherwise occur. To obtain a list of the serial port objects:

try (SerialportManager serialportManager = DeepsySerialportManager.getInstance()){
    List<Serialport> serialportList = serialportManager.getSerialPortList();
} catch (SerialportNotAvailableException e) {
        e.printStackTrace();
} catch (SerialportLowLevelException e) {
        e.printStackTrace();
}

If this object is not inside a try with resources block, it is recommended to call to serialportManager.close() in order to finalize properly;

serialportManager.close();

Examples

• Get SerialPorts
  

  
  package com.gmv.its.dpyjavaexamples.serialport;
  
  import java.util.List;
  import com.gmv.its.deepsy.hal.serialport.*;
  import com.gmv.its.deepsy.serialport.*;
  
  public class ListSerialPortApp {
      public static void main(String[] args) {
  
          try (DeepsySerialportManager serialportManager = DeepsySerialportManager.getInstance("192.168.0.50")) {
              List<Serialport> serialportList = serialportManager.getSerialPortList();
  
              System.out.println("There are " + serialportList.size() + " SerialPorts");
              for (Serialport s : serialportList) {
                  System.out.printf("Serial Port id : %s\n", s.getPortid());
                  System.out.printf("%20s : %s\n", "Alias", s.getConfiguration().getAlias());
                  System.out.printf("%20s : %s\n", "Protocol", s.getConfiguration().getProtocol());
                  System.out.printf("%20s : %s\n", "Baud Rate", s.getConfiguration().getBaudrate());
                  System.out.printf("%20s : %s\n", "Data bits", s.getConfiguration().getDatabits());
                  System.out.printf("%20s : %s\n", "Stop Bits", s.getConfiguration().getStopbits());
                  System.out.printf("%20s : %s\n", "Parity", s.getConfiguration().getParity());
                  System.out.printf("%20s : %s\n", "Flow Control", s.getConfiguration().getFlowcontrol());
                  System.out.printf("%20s : %s\n", "Address", s.getInformation().getAddress());
                  System.out.printf("%20s : %s\n", "RS485 pinout", s.getInformation().getRS485Pinout());
                  System.out.printf("%20s : %s\n", "RS485 txen", s.getInformation().getRS485txen());
                  System.out.printf("%20s : \n", "Allowed Protocols");
                  s.getInformation().getProtocolsAllowed().forEach(p -> System.out.printf("%20s\n", "- " + p.toString()));
              }
          } catch (SerialportNotAvailableException e) {
              e.printStackTrace();
          } catch (SerialportLowLevelException e) {
              e.printStackTrace();
          }
      }
  }

  
  
• Set SerialPort Configuration
  

  
  package com.gmv.its.dpyjavaexamples.serialport;
  
  import java.util.List;
  import com.gmv.its.deepsy.hal.serialport.*;
  import com.gmv.its.deepsy.serialport.*;
  
  public class SetSerialPortConfigurationApp {
      public static void main(String[] args) {
  
          try (DeepsySerialportManager serialportManager = DeepsySerialportManager.getInstance("192.168.0.50")) {
              List<Serialport> serialportList = serialportManager.getSerialPortList();
  
              System.out.println("There are " + serialportList.size() + " SerialPorts");
              
              Serialport serialPort = serialportList.get(0);
              if (serialPort != null) {
                  String portID = serialPort.getPortid();
  
                  String currentAlias = serialPort.getConfiguration().getAlias();
                  SerialportProtocol currentProtocol = serialPort.getConfiguration().getProtocol();
                  int currentBaudrate = serialPort.getConfiguration().getBaudrate();
                  System.out.println("Initial configuration");
                  System.out.printf("%20s : %s\n", "Alias", currentAlias);
                  System.out.printf("%20s : %s\n", "Protocol", currentProtocol);
                  System.out.printf("%20s : %d\n", "Baud Rate", currentBaudrate);
  
                  SerialportConfig configuration = serialPort.getConfiguration();
                  configuration.setAlias("New Alias");
                  configuration.setProtocol(SerialportProtocol.RS485);
                  configuration.setBaudrate(115200);
                  serialPort.setConfiguration(configuration);
                  
                  Serialport serialPort2 = serialportManager.getSerialPortList().get(0);
                  System.out.println("New configuration");
                  System.out.printf("%20s : %s\n", "Alias", serialPort2.getConfiguration().getAlias());
                  System.out.printf("%20s : %s\n", "Protocol", serialPort2.getConfiguration().getProtocol());
                  System.out.printf("%20s : %d\n", "Baud Rate", serialPort2.getConfiguration().getBaudrate());
  
                  //Set configuration as it was
                  SerialportConfig currentConfiguration = serialPort.getConfiguration();
                  currentConfiguration.setAlias(currentAlias);
                  currentConfiguration.setProtocol(currentProtocol);
                  currentConfiguration.setBaudrate(currentBaudrate);
                  serialPort.setConfiguration(currentConfiguration);
                  
              }
          } catch (SerialportNotAvailableException e) {
              e.printStackTrace();
          } catch (SerialportLowLevelException e) {
              e.printStackTrace();
          }
      }
  }

  
  
• Subscribe to SerialPort events
  

  
  package com.gmv.its.dpyjavaexamples.serialport;
  
  import java.util.List;
  import java.io.*;
  import com.gmv.its.deepsy.hal.CannotSubscribeException;
  import com.gmv.its.deepsy.hal.serialport.*;
  import com.gmv.its.deepsy.serialport.*;
  
  class MySerialPortObserver extends SerialportObserver {
      @Override
      public void notifyMessagereceived(MessagereceivedEvent event) {
          byte[] data = ((MessagereceivedEvent) event).getData();
          String portId = ((MessagereceivedEvent) event).getPortid();
          System.out.println("MessageReceived Event. SerialPort " + portId + ".");
          System.out.println(String.format("%20s: %s", "New Data", stringToHex(data)));
          System.out.println(String.format("%20s: %s", "New Data Byte", convertBytesToInt(data)));
          System.out.println(String.format("%20s: %s\n", "New Data Hex", convertBytesToHex(data)));
      }
  
      public static String stringToHex(byte[] data) {
          String result = "";
          for (byte b : data) {
              if (Character.isISOControl((char)b) || Byte.toUnsignedInt(b) > 127) {
                  result += "\\x" + String.format("%02X", b).toUpperCase();
              } else {
                  result += (char)b;
              }
          }
          return result;
      }
  
      public static String convertBytesToInt(byte[] bytes) {
          StringBuilder sb = new StringBuilder();
          for (int i = 0; i < bytes.length; i++) {
              sb.append(String.format("%d", Byte.toUnsignedInt(bytes[i])));
              if (i != bytes.length - 1) {
                  sb.append("-");
              }
          }
          return sb.toString();
      }
  
      public static String convertBytesToHex(byte[] bytes) {
          StringBuilder sb = new StringBuilder();
          for (int i = 0; i < bytes.length; i++) {
              sb.append(String.format("%02x", bytes[i]).toUpperCase());
              if (i != bytes.length - 1) {
                  sb.append("-");
              }
          }
          return sb.toString();
      }
  }
  
  public class SubscribeSerialPortEventsApp {
      public static void main(String[] args) {
  
          try (DeepsySerialportManager serialportManager = DeepsySerialportManager.getInstance("192.168.0.50")) {
              List<Serialport> serialportList = serialportManager.getSerialPortList();
  
              System.out.println("There are " + serialportList.size() + " SerialPorts");
              
              Serialport serialPort = serialportList.get(0);
              if (serialPort != null) {
                  serialPort.subscribe(new MySerialPortObserver());
  
                  System.out.println("Press any key for exit\n");
                  InputStreamReader isr = new InputStreamReader(System.in);
                  BufferedReader br = new BufferedReader(isr);
                  br.readLine();
              }
          } catch (SerialportNotAvailableException e) {
              e.printStackTrace();
          } catch (SerialportLowLevelException e) {
              e.printStackTrace();
          } catch (CannotSubscribeException e) {
              e.printStackTrace();
          } catch (Exception e) {
              e.printStackTrace();
          }
      }
  }

  
  
• Send Message
  

  
  package com.gmv.its.dpyjavaexamples.serialport;
  
  import java.io.UnsupportedEncodingException;
  import java.util.List;
  import com.gmv.its.deepsy.hal.serialport.*;
  import com.gmv.its.deepsy.serialport.*;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  
  public class SendSerialPortMessageApp {
      public static void main(String[] args) {
  
          try (DeepsySerialportManager serialportManager = DeepsySerialportManager.getInstance("192.168.1.50")) {
              List<Serialport> serialportList = serialportManager.getSerialPortList();
  
              System.out.println("There are " + serialportList.size() + " SerialPorts");
  
              Serialport serialPort = serialportList.get(0);
              if (serialPort != null) {
                  String message = "Hey\u002C\nhow are you\u003f\nBye.";
                  byte[] dataHead = { 0x05, 0x10, 0x1E };
  
                  byte[] dataFromStr;
                  try {
                      dataFromStr = message.getBytes("ISO-8859-1");
                  } catch (UnsupportedEncodingException ue) {
                      dataFromStr = message.getBytes();
                  }
  
                  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
                  outputStream.write(dataHead);
                  outputStream.write(dataFromStr);
                  byte[] data = outputStream.toByteArray();
  
                  System.out.println("Message sent to \"" + serialPort.getPortid() + "\":");
                  System.out.println(String.format("%20s: %s", "New Data", stringToHex(data)));
                  System.out.println(String.format("%20s: %s\n", "New Data Hex", convertBytesToHex(data)));
  
                  serialPort.send(data);
              }
          } catch (IOException e) {
              e.printStackTrace();
          } catch (SerialportNotAvailableException e) {
              e.printStackTrace();
          } catch (SerialportLowLevelException e) {
              e.printStackTrace();
          }
      }
  
      public static String stringToHex(byte[] data) {
          String result = "";
          for (byte b : data) {
              if (Character.isISOControl((char)b) || Byte.toUnsignedInt(b) > 127) {
                  result += "\\x" + String.format("%02X", b).toUpperCase();
              } else {
                  result += (char)b;
              }
          }
          return result;
      }
  
      public static String convertBytesToHex(byte[] bytes) {
          StringBuilder sb = new StringBuilder();
          for (int i = 0; i < bytes.length; i++) {
              sb.append(String.format("%02x", bytes[i]).toUpperCase());
              if (i != bytes.length - 1) {
                  sb.append("-");
              }
          }
          return sb.toString();
      }
  }

  
  
• Send multiple messages using console
  

  
  package com.gmv.its.dpyjavaexamples.serialport;
  
  import java.io.BufferedReader;
  import java.io.InputStreamReader;
  import java.io.UnsupportedEncodingException;
  import java.util.List;
  import com.gmv.its.deepsy.hal.serialport.*;
  import com.gmv.its.deepsy.serialport.*;
  
  // WARNING
  // When using console, special characters like '\n', '\t' or unicode ('\u002C')
  // will be interpreted as literals, so if you write down '\n' in this example
  // don't expect receive a new line character
  
  public class SendSerialPortMessageFromConsoleApp {
      public static void main(String[] args) {
  
          try (DeepsySerialportManager serialportManager = DeepsySerialportManager.getInstance("192.168.0.50")) {
              List<Serialport> serialportList = serialportManager.getSerialPortList();
  
              System.out.println("There are " + serialportList.size() + " SerialPorts");
  
              Serialport serialPort = serialportList.get(0);
              if (serialPort != null) {
  
                  String portID = serialPort.getPortid();
  
                  InputStreamReader isr = new InputStreamReader(System.in);
                  BufferedReader br = new BufferedReader(isr);
                  while (true)
                  {
                      System.out.println("Write the message to be send to the port: " + portID);
                      System.out.println("\tWrite \"quit\" to close");
                      String message = br.readLine();
  
                      if (message.equals("quit")) break;
  
                      byte[] data;
                      try {
                          data = message.getBytes("ISO-8859-1");
                      } catch (UnsupportedEncodingException ue) {
                          data = message.getBytes();
                      }
  
                      System.out.println("Message sent to \"" + serialPort.getPortid() + "\":");
                      System.out.println(String.format("%20s: %s", "New Data", stringToHex(data)));
                      System.out.println(String.format("%20s: %s\n", "New Data Hex", convertBytesToHex(data)));
  
                      // Send message
                      serialPort.send(data);
                  }
              }
          } catch (SerialportNotAvailableException e) {
              e.printStackTrace();
          } catch (SerialportLowLevelException e) {
              e.printStackTrace();
          } catch (Exception e) {
              e.printStackTrace();
          }
      }
  
      public static String stringToHex(byte[] data) {
          String result = "";
          for (byte b : data) {
              if (Character.isISOControl((char)b) || Byte.toUnsignedInt(b) > 127) {
                  result += "\\x" + String.format("%02X", b).toUpperCase();
              } else {
                  result += (char)b;
              }
          }
          return result;
      }
  
      public static String convertBytesToHex(byte[] bytes) {
          StringBuilder sb = new StringBuilder();
          for (int i = 0; i < bytes.length; i++) {
              sb.append(String.format("%02x", bytes[i]).toUpperCase());
              if (i != bytes.length - 1) {
                  sb.append("-");
              }
          }
          return sb.toString();
      }
  }