SerialLogger.java Source code

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Here is the source code for SerialLogger.java

Source

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Enumeration;
import java.util.TooManyListenersException;
import java.util.logging.Logger;

import javax.comm.CommPortIdentifier;
import javax.comm.NoSuchPortException;
import javax.comm.PortInUseException;
import javax.comm.SerialPort;
import javax.comm.SerialPortEvent;
import javax.comm.SerialPortEventListener;
import javax.comm.UnsupportedCommOperationException;

/**
 * Read from multiple Serial ports, notifying when data arrives on any.
 * 
 * @version $Id: SerialLogger.java,v 1.4 2004/03/11 04:09:14 ian Exp $
 * @author Ian F. Darwin, http://www.darwinsys.com/
 */
public class SerialLogger {

    public static void main(String[] argv)
            throws IOException, NoSuchPortException, PortInUseException, UnsupportedCommOperationException {

        new SerialLogger();
    }

    /* Constructor */
    public SerialLogger()
            throws IOException, NoSuchPortException, PortInUseException, UnsupportedCommOperationException {

        // get list of ports available on this particular computer,
        // by calling static method in CommPortIdentifier.
        Enumeration pList = CommPortIdentifier.getPortIdentifiers();

        // Process the list, processing only serial ports.
        while (pList.hasMoreElements()) {
            CommPortIdentifier cpi = (CommPortIdentifier) pList.nextElement();
            String name = cpi.getName();
            System.out.print("Port " + name + " ");
            if (cpi.getPortType() == CommPortIdentifier.PORT_SERIAL) {
                System.out.println("is a Serial Port: " + cpi);

                SerialPort thePort;
                try {
                    thePort = (SerialPort) cpi.open("Logger", 1000);
                } catch (PortInUseException ev) {
                    System.err.println("Port in use: " + name);
                    continue;
                }

                // Tell the Comm API that we want serial events.
                thePort.notifyOnDataAvailable(true);
                try {
                    thePort.addEventListener(new Logger(cpi.getName(), thePort));
                } catch (TooManyListenersException ev) {
                    // "CantHappen" error
                    System.err.println("Too many listeners(!) " + ev);
                    System.exit(0);
                }
            }
        }
    }

    /** Handle one port. */
    public class Logger implements SerialPortEventListener {
        String portName;

        SerialPort thePort;

        BufferedReader ifile;

        public Logger(String name, SerialPort port) throws IOException {
            portName = name;
            thePort = port;
            // Make a reader for the input file.
            ifile = new BufferedReader(new InputStreamReader(thePort.getInputStream()));
        }

        public void serialEvent(SerialPortEvent ev) {
            String line;
            try {
                line = ifile.readLine();
                if (line == null) {
                    System.out.println("EOF on serial port.");
                    System.exit(0);
                }
                System.out.println(portName + ": " + line);
            } catch (IOException ex) {
                System.err.println("IO Error " + ex);
            }
        }
    }
}