package com.intelligt.modbus.jlibmodbus.serial;
|
|
import java.io.IOException;
|
import java.io.InputStream;
|
import java.io.OutputStream;
|
|
/*
|
* Copyright (C) 2017 Vladislav Y. Kochedykov
|
*
|
* [http://jlibmodbus.sourceforge.net]
|
*
|
* This file is part of JLibModbus.
|
*
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
* you may not use this file except in compliance with the License.
|
* You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations under the License.
|
*
|
* Authors: Vladislav Y. Kochedykov, software engineer.
|
* email: vladislav.kochedykov@gmail.com
|
*/
|
|
public class SerialPortJSerialComm extends SerialPort {
|
|
private com.fazecast.jSerialComm.SerialPort port;
|
private InputStream in;
|
private OutputStream out;
|
final byte [] b = new byte[1];
|
|
public SerialPortJSerialComm(SerialParameters sp) {
|
super(sp);
|
}
|
|
@Override
|
public void write(int b) throws IOException {
|
if (!isOpened()) {
|
throw new IOException("Port not opened");
|
}
|
try {
|
out.write((byte) b);
|
} catch (Exception e) {
|
throw new IOException(e);
|
}
|
}
|
|
@Override
|
public void write(byte[] bytes) throws IOException {
|
if (!isOpened()) {
|
throw new IOException("Port not opened");
|
}
|
try {
|
out.write(bytes);
|
} catch (Exception e) {
|
throw new IOException(e);
|
}
|
}
|
|
@Override
|
public void open() throws SerialPortException {
|
SerialParameters sp = getSerialParameters();
|
port = com.fazecast.jSerialComm.SerialPort.getCommPort(sp.getDevice());
|
port.openPort();
|
|
port.setComPortParameters(sp.getBaudRate(), sp.getDataBits(), sp.getStopBits(), sp.getParity().getValue());
|
port.setFlowControl(com.fazecast.jSerialComm.SerialPort.FLOW_CONTROL_DISABLED);
|
|
in = port.getInputStream();
|
out = port.getOutputStream();
|
|
port.setComPortTimeouts(com.fazecast.jSerialComm.SerialPort.TIMEOUT_READ_BLOCKING, getReadTimeout(), 0);
|
|
}
|
|
@Override
|
public void setReadTimeout(int readTimeout) {
|
super.setReadTimeout(readTimeout);
|
|
if (isOpened()) {
|
port.setComPortTimeouts(com.fazecast.jSerialComm.SerialPort.TIMEOUT_NONBLOCKING, getReadTimeout(), getReadTimeout());
|
}
|
}
|
|
@Override
|
public int read() throws IOException {
|
if (!isOpened()) {
|
throw new IOException("Port not opened");
|
}
|
int c;
|
|
try {
|
c = in.read(b, 0, b.length);
|
} catch (Exception e) {
|
throw new IOException(e);
|
}
|
if (c > 0)
|
return b[0];
|
else
|
throw new IOException("Read timeout");
|
}
|
|
@Override
|
public int read(byte[] b, int off, int len) throws IOException {
|
if (!isOpened()) {
|
throw new IOException("Port not opened");
|
}
|
int c;
|
try {
|
c = in.read(b, off, len);
|
} catch (Exception e) {
|
throw new IOException(e);
|
}
|
if (c > -1)
|
return c;
|
else
|
throw new IOException("Read timeout");
|
}
|
|
@Override
|
public void close() {
|
try {
|
if (isOpened()) {
|
in.close();
|
out.close();
|
port.closePort();
|
}
|
} catch (Exception e) {
|
e.printStackTrace();
|
}
|
}
|
|
@Override
|
public boolean isOpened() {
|
return port.isOpen();
|
}
|
}
|
