#41: +JSerialCommTransport

pom.xml

@@ -42,6 +42,12 @@
  <artifactId>jssc</artifactId>
  <version>${jssc.version}</version>
  </dependency>
+ <dependency>
+ <groupId>com.fazecast</groupId>
+ <artifactId>jSerialComm</artifactId>
+ <version>2.6.2</version>
+ <optional>true</optional>
+ </dependency>
 
  <dependency>
  <groupId>org.slf4j</groupId>

src/main/java/org/firmata4j/transport/JSerialCommTransport.java

@@ -0,0 +1,103 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 Oleg Kurbatov (o.v.kurbatov@gmail.com)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package org.firmata4j.transport;
+
+import java.io.IOException;
+
+import org.firmata4j.Parser;
+
+import com.fazecast.jSerialComm.SerialPort;
+import com.fazecast.jSerialComm.SerialPortDataListener;
+import com.fazecast.jSerialComm.SerialPortEvent;
+
+/**
+ * Implementation of {@link TransportInterface} based on {@link SerialPort}.
+ * 
+ * @author Norbert Sándor
+ */
+public class JSerialCommTransport implements TransportInterface
+{
+ private final SerialPort serialPort;
+
+ private Parser parser;
+
+ public JSerialCommTransport(String portDescriptor)
+ {
+ serialPort = SerialPort.getCommPort(portDescriptor);
+ }
+
+ @Override
+ public void start() throws IOException
+ {
+ if (!serialPort.isOpen())
+ {
+ if (serialPort.openPort())
+ {
+ serialPort.setComPortParameters(jssc.SerialPort.BAUDRATE_57600, jssc.SerialPort.DATABITS_8,
+ SerialPort.ONE_STOP_BIT, SerialPort.NO_PARITY);
+ serialPort.addDataListener(new SerialPortDataListener()
+ {
+ @Override
+ public void serialEvent(SerialPortEvent event)
+ {
+ if (event.getEventType() == SerialPort.LISTENING_EVENT_DATA_RECEIVED)
+ {
+ parser.parse(event.getReceivedData());
+ }
+ }
+
+ @Override
+ public int getListeningEvents()
+ {
+ return SerialPort.LISTENING_EVENT_DATA_RECEIVED;
+ }
+ });
+ } else
+ {
+ throw new IOException("Cannot start firmata device: port=" + serialPort);
+ }
+ }
+ }
+
+ @Override
+ public void stop() throws IOException
+ {
+ if (serialPort.isOpen() && !serialPort.closePort())
+ {
+ throw new IOException("Cannot properly stop firmata device: port=" + serialPort);
+ }
+ }
+
+ @Override
+ public void write(byte[] bytes) throws IOException
+ {
+ serialPort.writeBytes(bytes, bytes.length);
+ }
+
+ @Override
+ public void setParser(Parser parser)
+ {
+ this.parser = parser;
+ }
+}