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281 lines
7.8 KiB
281 lines
7.8 KiB
/*
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* This class is one end of a test pair of programs
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* SimpleSnuV1.class is the other end.
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* To run the test requires two com ports
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* and a null modem cable.
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* Start SimpleSnuV1 and then run SimpleRead
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* on the other machine/com port.
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* This code is supplied for demonstration purposes only.
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* You are free to use it as you please.
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*/
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import java.io.*;
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import java.util.*;
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import gnu.io.*;
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public class SimpleRead implements Runnable, SerialPortEventListener {
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static CommPortIdentifier portId;
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static Enumeration portList;
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SerialPort serialPort = null;
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InputStream inputStream;
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OutputStream outputStream;
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Thread readThread;
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String aS = "";
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int numBytes = 0;
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String num = "021891383";
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String rst = "atz";
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String dial ="atd";
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String outData = "";
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String outDataBuff = "";
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boolean running = true;
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boolean process = true;
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boolean waitForInput = true;
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boolean fatalErr = false;
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String errMessage = "";
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public static void main(String[] args) {
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if (args.length < 1) {
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System.out.print("SimpleRead.class /dev/ttyxx\n");
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System.exit(-1);
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}
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portList = CommPortIdentifier.getPortIdentifiers();
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while (portList.hasMoreElements()) {
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portId = (CommPortIdentifier) portList.nextElement();
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if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
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// if (portId.getName().equals("COM1")) {
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if (portId.getName().equals(args[0])) {
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SimpleRead reader = new SimpleRead();
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}
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}
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}
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}
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public SimpleRead() {
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try {
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serialPort = (SerialPort) portId.open("SimpleReadApp", 2000);
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} catch (PortInUseException e) {}
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try {
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inputStream = serialPort.getInputStream();
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outputStream = serialPort.getOutputStream();
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} catch (IOException e) {}
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try {
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serialPort.addEventListener(this);
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} catch (TooManyListenersException e) {}
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serialPort.notifyOnDataAvailable(true);
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try {
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serialPort.setSerialPortParams(19200, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
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} catch (UnsupportedCommOperationException e) {}
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readThread = new Thread(this);
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readThread.start();
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}
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public void run() {
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int resetCount = 0;
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while (running) {
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if (fatalErr) {
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System.out.print("Fatal Error...\n");
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System.exit(1);
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}
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if (!process) {
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try {
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Thread.sleep(500);
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} catch (InterruptedException e) {}
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continue;
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}
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if (num.equals("Nil")) {
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try {
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Thread.sleep(500);
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} catch (InterruptedException e) {}
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continue;
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}
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if (reset()) {
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if (dial()) {
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num = "Nil";
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System.out.print("Yahoooo OK...\n");
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//Here goes a class to handle any coms it gets passed the stuff it needs...
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// SNHdlcMessage myMess = new SNHdlcMessage();
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// String rply = myMess.processInput("loc1", "text", inputStream, outputStream);
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// System.out.print(rply + "\n");
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process = false;
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running = false;
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System.out.print("Normal Exit...\n");
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System.exit(1);
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} else {
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System.out.print("Dial Error...\n");
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process = false;
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running = false;
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System.exit(1);
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}
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} else {
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System.out.print("Reset Error...\n");
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resetCount ++;
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if (resetCount > 2 ) {
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System.out.print("Reset To Many Times Error ...\n");
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System.exit(1);
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}
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}
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try {
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Thread.sleep(100);
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} catch (InterruptedException e) {}
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}
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}
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public void closePort(SerialPort serialPort) {
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if (serialPort != null) {
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serialPort.notifyOnDataAvailable(false);
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serialPort.removeEventListener();
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if (inputStream != null) {
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try {
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inputStream.close();
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inputStream = null;
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}
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catch (IOException e) {}
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}
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if (outputStream != null) {
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try {
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outputStream.close();
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outputStream = null;
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}
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catch (IOException e) {}
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}
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serialPort.close();
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serialPort = null;
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}
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}
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public boolean reset() {
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try {
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outputStream.write(new String("atz").getBytes());
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outputStream.write((byte)0x0D);
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System.out.print("--> atz\n");
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} catch (IOException e) {
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System.out.print("Reset Output IO Exception");
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return false;
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}
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int waitingCount = 0;
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waitForInput = true;
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while (waitForInput) {
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try {
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Thread.sleep(100);
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} catch (InterruptedException e) {}
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waitingCount ++;
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//2 seconds for it to reset
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if (waitingCount > 20) {
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return false;
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}
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}
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int numBytesTotal = 0;
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byte[] readBuffer = new byte[20];
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String sReadBuff = "";
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boolean dLoop = true;
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while (dLoop) {
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try {
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while (inputStream.available() > 0) {
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numBytes = inputStream.read(readBuffer);
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numBytesTotal += numBytes;
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String tmpR = new String(readBuffer);
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sReadBuff += tmpR.substring(0, numBytes);
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}
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if (sReadBuff.indexOf("NO CARRIER") != -1) {
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dLoop = false;
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} else if (sReadBuff.indexOf("BUSY") != -1) {
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dLoop = false;
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} else if (sReadBuff.indexOf("NO DIALTONE") != -1) {
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dLoop = false;
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} else if (sReadBuff.indexOf("OK") != -1) {
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dLoop = false;
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System.out.print("<-- " + new String(sReadBuff));
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return true;
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} else if (sReadBuff.indexOf("CONNECT") != -1) {
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dLoop = false;
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}
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} catch (IOException e) {
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System.out.print("Reset Input IO Exception");
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return false;
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}
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}
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System.out.print("<-- " + new String(sReadBuff));
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return false;
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}
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public boolean dial() {
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try {
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outputStream.write(new String("atd").getBytes());
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outputStream.write(num.getBytes());
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outputStream.write((byte)0x0D);
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System.out.print("--> atdxxxxx\n");
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} catch (IOException e) {
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System.out.print("Dial Output IO Exception");
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return false;
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}
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int waitingCount = 0;
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waitForInput = true;
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while (waitForInput) {
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try {
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Thread.sleep(100);
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} catch (InterruptedException e) {}
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waitingCount ++;
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if (waitingCount > 1000) {
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return false;
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}
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}
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int numBytesTotal = 0;
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byte[] readBuffer = new byte[20];
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String sReadBuff = "";
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boolean dLoop = true;
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while (dLoop) {
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try {
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while (inputStream.available() > 0) {
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numBytes = inputStream.read(readBuffer);
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numBytesTotal += numBytes;
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String tmpR = new String(readBuffer);
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sReadBuff += tmpR.substring(0, numBytes);
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}
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if (sReadBuff.indexOf("NO CARRIER") != -1) {
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dLoop = false;
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} else if (sReadBuff.indexOf("BUSY") != -1) {
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dLoop = false;
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} else if (sReadBuff.indexOf("NO DIALTONE") != -1) {
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dLoop = false;
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} else if (sReadBuff.indexOf("OK") != -1) {
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dLoop = false;
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} else if (sReadBuff.indexOf("CONNECT") != -1) {
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System.out.print("<-- " + new String(sReadBuff));
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dLoop = false;
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return true;
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}
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} catch (IOException e) {
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System.out.print("Dial Input IO Exception");
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return false;
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}
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}
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System.out.print("<-- " + new String(sReadBuff));
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return false;
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}
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public void serialEvent(SerialPortEvent event) {
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switch(event.getEventType()) {
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case SerialPortEvent.BI:
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System.out.print("BI\n");
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case SerialPortEvent.OE:
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System.out.print("OE\n");
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case SerialPortEvent.FE:
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System.out.print("FE\n");
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case SerialPortEvent.PE:
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System.out.print("PE\n");
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case SerialPortEvent.CD:
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System.out.print("CD\n");
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case SerialPortEvent.CTS:
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System.out.print("CTS\n");
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case SerialPortEvent.DSR:
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System.out.print("DSR\n");
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case SerialPortEvent.RI:
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System.out.print("RI\n");
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case SerialPortEvent.OUTPUT_BUFFER_EMPTY:
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System.out.print("Out Buff Empty\n");
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break;
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case SerialPortEvent.DATA_AVAILABLE:
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waitForInput = false;
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// System.out.print("Data Available\n");
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break;
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}
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}
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}
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