How to test Java signal handler in Eclipse 3.2

From:
"milesd" <milesd@chocksaway.com>
Newsgroups:
comp.lang.java.help
Date:
13 Oct 2006 03:24:13 -0700
Message-ID:
<1160735053.317926.83240@f16g2000cwb.googlegroups.com>
The following code implements the handle method of Java SignalHandler
fucntionality (please see below).

 I can test code within a linux command line environment (using kill -
pid/%1), but would like to know how to do the same in Eclipse 3.2. I
would like to do the following:

Run code.
Switch to an eclipse view - something which will capture my CTRL cdoe
input.
Test my signal Handler code by proessing CTRL keys :)
See the key-press being trapped by the signalHandler code.

Can someone please tell me how to do this within Eclipse 3.2. If I
need to wrap an eclipse handler round my code, then so be it :o) Any
help would be appreciated.

thanks

Miles.

Code
====

public class **** implements sun.misc.SignalHandler {
    private boolean Running = true;
    private static Logger myLogger;

    public SignalHandler() {
        try
        {
            this.setupHandler();
        }
        catch (SignalHandlerException e)
        {
            myLogger.info ( e.toString() );
        }
    }

    private void setupHandler() throws SignalHandlerException {
        this.handleSignal("INT");
        this.handleSignal("TERM");
        //this.handleSignal("HUP");
    }

    public void handleSignal(final String signalName) throws
SignalHandlerException {
        try {
            sun.misc.Signal.handle(new sun.misc.Signal(signalName), this);
        } catch (IllegalArgumentException x) {
            // Most likely this is a signal that's not supported on this
            // platform or with the JVM as it is currently configured
            throw new SignalHandlerException ( "SignalHandlerException" +
x.getMessage() );
        }
    }

    /**
     * Called by Sun Microsystems' signal trapping routines in the JVM.
     * @param signal The {@link sun.misc.Signal} that we received
     **/
    public synchronized void handle(sun.misc.Signal signal) {

        // we are only interested in catching the "TERM" signal
        if ( signal.getName().equals("TERM") ) {
            myLogger.info(" TERM received " + signal.getName() );
            myLogger.info("threadName" + Thread.currentThread().getName()
);
            System.exit(-1);
        } else if ( signal.getName().equals("INT") ||
signal.getName().equals("HUP") ) {
            setRunningStatus( false );
            notifyAll(); //TODO - clarify if notify OR notifyall
        }

        myLogger.info( signal.getName() + " " + signal.getNumber() );
        myLogger.info( getRunningStatus()+"" );
    }

    public void setRunningStatus( boolean Status ) {
        this.Running = Status;
    }

    public boolean getRunningStatus() {
        return ( Running );
    }

    /**
     * General "clean up" method which is called when we receive a TERM
signal
     * This will likely be superseeded by specific cleanup code
     *
     **/
    public boolean cleanUp() {
        // TODO - we need to decide what we are going to do one we trap a
TERMinate signal.
        // We need to complete all our threads nicely.
        myLogger.info("Cleaning up!");
        return ( true );
    }

    public synchronized void myWait() {
        try
        {
            wait();
        }
        catch (InterruptedException e)
        {
            myLogger.info( "myWait WOKEN UP" + e );
        }
    }

    /**
     *
     * The main method - entry into the code
     * retain for testing
     *
     **/
    public static void main(final String[] args) {
        SignalHandler mySignalHandler = new SignalHandler();

        while ( mySignalHandler.getRunningStatus() ) {
            myLogger.info("waiting");
            mySignalHandler.myWait();
            myLogger.info("woken up");

        }
    }

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