// SMSLib for Java v3
// A Java API library for sending and receiving SMS via a GSM modem
// or other supported gateways.
// Web Site: http://www.smslib.org
//
// Copyright (C) 2002-2012, Thanasis Delenikas, Athens/GREECE.
// SMSLib is distributed under the terms of the Apache License version 2.0
//
// 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.
package org.smslib.modem;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.StringTokenizer;
import org.smslib.GatewayException;
import org.smslib.Service;
import org.smslib.helper.CommPortIdentifier;
import org.smslib.helper.Logger;
import org.smslib.helper.SerialPort;
import org.smslib.helper.SerialPortEvent;
import org.smslib.helper.SerialPortEventListener;
import org.smslib.threading.AServiceThread;
class SerialModemDriver extends AModemDriver implements SerialPortEventListener
{
private String comPort;
private int baudRate;
private CommPortIdentifier portId;
private SerialPort serialPort;
private InputStream in;
private OutputStream out;
private PortReader portReader;
protected SerialModemDriver(ModemGateway myGateway, String deviceParms)
{
super(myGateway, deviceParms);
StringTokenizer tokens = new StringTokenizer(deviceParms, ":");
setComPort(tokens.nextToken());
setBaudRate(Integer.parseInt(tokens.nextToken()));
setSerialPort(null);
}
@Override
protected void connectPort() throws GatewayException, IOException, InterruptedException
{
if (Service.getInstance().getSettings().SERIAL_NOFLUSH) Logger.getInstance().logInfo("Comm port flushing is disabled.", null, getGateway().getGatewayId());
if (Service.getInstance().getSettings().SERIAL_POLLING) Logger.getInstance().logInfo("Using polled serial port mode.", null, getGateway().getGatewayId());
try
{
Logger.getInstance().logInfo("Opening: " + getComPort() + " @" + getBaudRate(), null, getGateway().getGatewayId());
CommPortIdentifier.getPortIdentifiers();
setPortId(CommPortIdentifier.getPortIdentifier(getComPort()));
setSerialPort(getPortId().open("org.smslib", 1971));
setIn(getSerialPort().getInputStream());
setOut(getSerialPort().getOutputStream());
if (!Service.getInstance().getSettings().SERIAL_POLLING)
{
getSerialPort().notifyOnDataAvailable(true);
getSerialPort().notifyOnOutputEmpty(true);
}
if (!Service.getInstance().getSettings().SERIAL_NOEVENTS)
{
getSerialPort().notifyOnBreakInterrupt(true);
getSerialPort().notifyOnFramingError(true);
getSerialPort().notifyOnOverrunError(true);
getSerialPort().notifyOnParityError(true);
}
else Logger.getInstance().logInfo("Skipping registration of serial port events!", null, null);
if (Service.getInstance().getSettings().SERIAL_RTSCTS_OUT) getSerialPort().setFlowControlMode(SerialPort.FLOWCONTROL_RTSCTS_IN | SerialPort.FLOWCONTROL_RTSCTS_OUT);
else getSerialPort().setFlowControlMode(SerialPort.FLOWCONTROL_RTSCTS_IN);
getSerialPort().addEventListener(this);
getSerialPort().setSerialPortParams(getBaudRate(), SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
getSerialPort().setInputBufferSize(Service.getInstance().getSettings().SERIAL_BUFFER_SIZE);
getSerialPort().setOutputBufferSize(Service.getInstance().getSettings().SERIAL_BUFFER_SIZE);
getSerialPort().enableReceiveThreshold(1);
getSerialPort().enableReceiveTimeout(Service.getInstance().getSettings().SERIAL_TIMEOUT);
if (Service.getInstance().getSettings().SERIAL_POLLING)
{
setPortReader(new PortReader("PortReader() [" + getComPort() + "]", Service.getInstance().getSettings().SERIAL_POLLING_INTERVAL));
}
}
catch (Exception e)
{
throw new GatewayException("Comm library exception: " + e.getMessage());
}
}
@Override
protected void disconnectPort() throws IOException, InterruptedException
{
synchronized (getSYNCReader())
{
if (Service.getInstance().getSettings().SERIAL_POLLING)
{
if (getPortReader() != null)
{
getPortReader().cancel();
setPortReader(null);
}
}
if (getSerialPort() != null) getSerialPort().close();
Logger.getInstance().logInfo("Closing: " + getComPort() + " @" + getBaudRate(), null, getGateway().getGatewayId());
}
}
@Override
protected void clear() throws IOException
{
while (portHasData())
read();
}
@Override
protected boolean portHasData() throws IOException
{
return (getIn().available() > 0);
}
public void serialEvent(SerialPortEvent event)
{
int eventType = event.getEventType();
if (eventType == SerialPortEvent.OE) Logger.getInstance().logError("Overrun Error!", null, getGateway().getGatewayId());
else if (eventType == SerialPortEvent.FE) Logger.getInstance().logError("Framing Error!", null, getGateway().getGatewayId());
else if (eventType == SerialPortEvent.PE) Logger.getInstance().logError("Parity Error!", null, getGateway().getGatewayId());
else if (eventType == SerialPortEvent.DATA_AVAILABLE)
{
if (!Service.getInstance().getSettings().SERIAL_POLLING)
{
synchronized (getSYNCReader())
{
setDataReceived(true);
getSYNCReader().notifyAll();
}
}
}
}
@Override
public void write(char c) throws IOException
{
getOut().write(c);
if (!Service.getInstance().getSettings().SERIAL_NOFLUSH) getOut().flush();
}
@Override
public void write(byte[] s) throws IOException
{
if (Service.getInstance().getSettings().SERIAL_BUFFER_CHUNK == 0) getOut().write(s);
else
{
int offset = 0;
int left = s.length;
while (left > 0)
{
int i = left > Service.getInstance().getSettings().SERIAL_BUFFER_CHUNK ? Service.getInstance().getSettings().SERIAL_BUFFER_CHUNK : left;
getOut().write(s, offset, i);
offset += i;
left -= i;
try
{
Thread.sleep(Service.getInstance().getSettings().SERIAL_BUFFER_CHUNK_DELAY);
}
catch (InterruptedException e)
{
}
}
}
if (!Service.getInstance().getSettings().SERIAL_NOFLUSH) getOut().flush();
}
@Override
protected int read() throws IOException
{
return getIn().read();
}
PortReader getPortReader()
{
return this.portReader;
}
void setPortReader(PortReader myPortReader)
{
this.portReader = myPortReader;
}
private class PortReader extends AServiceThread
{
public PortReader(String name, int delay)
{
super(name, delay, 0, true);
}
@Override
public void process() throws Exception
{
if (portHasData())
{
synchronized (getSYNCReader())
{
setDataReceived(true);
getSYNCReader().notifyAll();
}
}
}
}
String getComPort()
{
return this.comPort;
}
void setComPort(String myComPort)
{
this.comPort = myComPort;
}
int getBaudRate()
{
return this.baudRate;
}
void setBaudRate(int myBaudRate)
{
this.baudRate = myBaudRate;
}
CommPortIdentifier getPortId()
{
return this.portId;
}
void setPortId(CommPortIdentifier myPortId)
{
this.portId = myPortId;
}
SerialPort getSerialPort()
{
return this.serialPort;
}
void setSerialPort(SerialPort mySerialPort)
{
this.serialPort = mySerialPort;
}
InputStream getIn()
{
return this.in;
}
void setIn(InputStream myIn)
{
this.in = myIn;
}
OutputStream getOut()
{
return this.out;
}
void setOut(OutputStream myOut)
{
this.out = myOut;
}
}