/**
*
* Copyright (c) 2009-2016 Freedomotic team http://freedomotic.com
*
* This file is part of Freedomotic
*
* This Program 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 2, or (at your option) any later version.
*
* This Program 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
* Freedomotic; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*/
package com.freedomotic.plugins.devices.modbus.gateways;
import jssc.SerialPort;
import jssc.SerialPortException;
import java.io.IOException;
import java.io.OutputStream;
/**
* Class that wraps a {@link SerialPort} to provide {@link OutputStream}
* functionality.
* <br>
* It is instantiated by passing the constructor a {@link SerialPort} instance.
* Do not create multiple streams for the same serial port unless you implement
* your own synchronization.
*
* @author Charles Hache <chalz@member.fsf.org>
*
* Attribution: https://github.com/therealchalz/java-simple-serial-connector
*
*/
public class SerialOutputStream extends OutputStream {
SerialPort serialPort;
/**
* Instantiates a SerialOutputStream for the given {@link SerialPort} Do not
* create multiple streams for the same serial port unless you implement
* your own synchronization.
*
* @param sp The serial port to stream.
*/
public SerialOutputStream(SerialPort sp) {
serialPort = sp;
}
@Override
public void write(int b) throws IOException {
try {
serialPort.writeInt(b);
} catch (SerialPortException e) {
throw new IOException(e);
}
}
@Override
public void write(byte[] b) throws IOException {
write(b, 0, b.length);
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
byte[] buffer = new byte[len];
System.arraycopy(b, off, buffer, 0, len);
try {
serialPort.writeBytes(buffer);
} catch (SerialPortException e) {
throw new IOException(e);
}
}
}