serialmodemdriver.java

华为编程开发规范与案例, 华为编程开发规范与案例,华为编程开发规范与案例

// 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
//
// SMSLib is distributed under the terms of the Apache License version 2.0
//
// Copyright (C) 2002-2007, Thanasis Delenikas, Athens/GREECE
// Portions Copyright:
// Davide Bettoni, Clusone/ITALY, [e-mail]
// Tomek Cejner, Polland, [e-mail]
//
// 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.gateway;

// Import javax.comm if you are using JavaComm v2.0
import javax.comm.*;
// Import gnu.io if you are using RxTx
// import gnu.io.*;

import java.util.*;
import java.io.*;

public class SerialModemDriver extends ModemDriver implements SerialPortEventListener
{
	private String comPort;

	private int baudRate;

	private CommPortIdentifier portId;

	private SerialPort serialPort;

	private InputStream in;

	private OutputStream out;

	protected SerialModemDriver(ModemGateway gateway, String deviceParms)
	{
		super(gateway, deviceParms);

		StringTokenizer tokens = new StringTokenizer(deviceParms, ":");
		comPort = tokens.nextToken();
		baudRate = Integer.parseInt(tokens.nextToken());
		serialPort = null;
	}

	protected void connectPort() throws Exception
	{
		gateway.getLogger().info("Opening: " + comPort + " @" + baudRate);
		portId = CommPortIdentifier.getPortIdentifier(comPort);
		serialPort = (SerialPort) portId.open("SMSLib", 1971);
		in = serialPort.getInputStream();
		out = serialPort.getOutputStream();
		serialPort.notifyOnDataAvailable(true);
		serialPort.notifyOnOutputEmpty(true);
		serialPort.notifyOnBreakInterrupt(true);
		serialPort.notifyOnFramingError(true);
		serialPort.notifyOnOverrunError(true);
		serialPort.notifyOnParityError(true);
		serialPort.setFlowControlMode(SerialPort.FLOWCONTROL_RTSCTS_IN);
		serialPort.addEventListener(this);
		serialPort.setSerialPortParams(baudRate, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
		serialPort.setInputBufferSize(BUFFER_SIZE);
		serialPort.setOutputBufferSize(BUFFER_SIZE);
		serialPort.enableReceiveTimeout(RECEIVE_TIMEOUT);
		setConnected(true);
	}

	protected void disconnectPort() throws Exception
	{
		gateway.getLogger().info("Closing: " + comPort + " @" + baudRate);
		if (serialPort != null) serialPort.close();
		setConnected(false);
	}

	protected void clear() throws Exception
	{
		while (portHasData())
			read();
	}

	protected boolean portHasData() throws Exception
	{
		return (in.available() > 0);
	}

	public void serialEvent(SerialPortEvent event)
	{
		switch (event.getEventType())
		{
			case SerialPortEvent.BI:
				break;
			case SerialPortEvent.OE:
				gateway.getLogger().error("Overrun Error!");
				break;
			case SerialPortEvent.FE:
				gateway.getLogger().error("Framing Error!");
				break;
			case SerialPortEvent.PE:
				gateway.getLogger().error("Parity Error!");
				break;
			case SerialPortEvent.CD:
				break;
			case SerialPortEvent.CTS:
				break;
			case SerialPortEvent.DSR:
				break;
			case SerialPortEvent.RI:
				break;
			case SerialPortEvent.OUTPUT_BUFFER_EMPTY:
				break;
			case SerialPortEvent.DATA_AVAILABLE:
				synchronized (SYNC_Reader)
				{
					dataReceived = true;
					SYNC_Reader.notifyAll();
				}
				break;
		}
	}

	public void write(char c) throws Exception
	{
		out.write(c);
		out.flush();
	}

	public int read() throws Exception
	{
		return in.read();
	}
}