On Tue, 4 Sep 2007 11:49:20 -0300
"Fernando C. de Castro" <[EMAIL PROTECTED]> wrote:
> Hi people,
>
> Sorry if this was addressed before. This is my first take on the
> new Serial Transport, and I decided to adapt the good old NetCat
> Example as a first attempt. These were my steps:
>
> 1) downloaded mina-core-2.0.0-M1-20070822.130904-57.jar from the
> trunk;
>
> 2) started a new project using that Mina 2.0 snapshot with the NetCat
> Example files taken from the website;
>
> 3) Made the necessary adjustments on the code (as the API changed a
> bit from 1.x) and put the example to work. Worked fine as expected;
>
> 4) Downloaded the rxtx pack and installed the DLL (I'm coding on
> WindowsXP).
>
> 5) Changed Main.java to use a SerialConnector instead of a
> SocketConnector, following instructions on the Serial Tutorial.
>
> 6) Run the program.
>
> And this is what I get:
>
>
>
> Native lib Version = RXTX-2.1-7pre20
> Java lib Version = RXTX-2.1-7
> WARNING: RXTX Version mismatch
> Jar version = RXTX-2.1-7
> native lib Version = RXTX-2.1-7pre20
> Experimental: JNI_OnLoad called.
>
> Exception in thread "VmPipeIdleStatusChecker"
> java.lang.NullPointerException at
> org.apache.mina.common.IdleStatusChecker.notifyIdleSession(IdleStatusChecker.java:86)
> at
> org.apache.mina.common.IdleStatusChecker.access$200(IdleStatusChecker.java:33)
> at
> org.apache.mina.common.IdleStatusChecker$Worker.run(IdleStatusChecker.java:77)
>
>
> Apparently there is a version mismatch with RXTX, but I haven't
> been able to identify why. Any hints on how to sort that out will
> surely help. Plus, there is the Exception above. I ignored it at
> first because the program was "cat'ing" whatever text was sent to the
> serial port, as expected, with either Socket or Serial.
>
> But then I noticed: sessionIdle() was never called when I used a
> SerialConnector (and the exception is thrown). When I use the
> SocketConnector, no Exception is thrown and sessionIdle() is called
> appropriately.
>
> My Main.java is as follows:
>
>
> public class Main {
> public static void main(String[] args) throws Exception {
>
>
> System.out.println(RXTXVersion.getVersion());
>
> IoConnector connector = new SerialConnector();
> connector.setHandler( new NetCatProtocolHandler() );
> connector.setConnectTimeout(10);
>
> SerialAddress portAddress=new SerialAddress( "COM3", 9600, 8,
> SerialAddress.StopBits.BITS_1, SerialAddress.Parity.NONE,
> SerialAddress.FlowControl.NONE );
>
>
> ConnectFuture future = connector.connect( portAddress );
> future.await();
> IoSession session = future.getSession();
>
>
> }
> }
>
> The NetCatProtocolHandler() used is as follows:
>
>
>
> public class NetCatProtocolHandler extends IoHandlerAdapter {
> public void sessionOpened(IoSession session) {
> // Set reader idle time to 10 seconds.
> // sessionIdle(...) method will be invoked when no data is
> read // for 10 seconds.
> session.getConfig().setIdleTime(IdleStatus.READER_IDLE, 10);
> }
>
> public void sessionClosed(IoSession session) {
> // Print out total number of bytes read from the remote peer.
> System.err.println("Total " + session.getReadBytes() + "
> byte(s)"); }
>
> public void sessionIdle(IoSession session, IdleStatus status) {
> // Close the connection if reader is idle.
> if (status == IdleStatus.READER_IDLE)
> session.close();
> }
>
> public void messageReceived(IoSession session, Object message) {
> ByteBuffer buf = (ByteBuffer) message;
> // Print out read buffer content.
> while (buf.hasRemaining()) {
> System.out.print((char) buf.get());
> }
> System.out.flush();
> }
>
>
> }
>
>
> Any ideas on what could be throwing the exception and probably
> hindering sessionIdle() from being called when using the
> SerialConnector?
>
>
> Thanks in advance.
>
>
> Fernando
>
Ok it's fixed in SVN, apparently the SerialSession config wasn't
correctly initialized.
Sorry if you lost some time around this issue.
Julien
PS : it's me or the mailling list is lagging ?
