Re: [JSch-users] pl. help - exec and threads.

[Satish A <sa...@my...>]

Thanks Kevin. Your solution works well.

I was wondering if there was any way to get the exit status of the
remote command like openSSH does?

Satish.

On Sun, 2005-01-23 at 17:43 -0500, Kevin Kane wrote:
> Where you have your slight delay, I'd suggest instead doing something like
> 
>         while (!channel.isEOF())
>         {
>             // Wait for the remote process to complete.
>             Thread.sleep(500);
>         }
> 
> Ideally, you should be able to register a listener with the Channel object which
> would be notified of EOF events, but for right now you'll just have to poll.
> 
> Hope this helps,
> -Kevin
> 
> ----- Original Message ----- 
> From: "Satish A" <sa...@my...>
> To: <jsc...@li...>
> Sent: Sunday, January 23, 2005 4:54 AM
> Subject: [JSch-users] pl. help - exec and threads.
> 
> 
> > Hello,
> >
> > I am new user to jsch.
> >
> > I am basically trying to do this:
> >
> > cat "hello world" | ssh -i <priv_key> user@remhost 'cat >> remfile'
> >
> > ie., append the output of a local program to a remote file over ssh.
> >
> > Basically, I am trying to do this in a method that starts a session,
> > appends to remote file and ends the session.
> >
> > I figured that Exec.java example is the closest to this. With little
> > mods, I have the code below. It works in that the remfile is appended
> > to. But, the problem is that after channel.connect()
> > is done executing, the program still runs because thread(s) are still
> > alive. If I add session.disconnect() right after it, the file is not
> > getting appended to. If I add a slight delay (in comments below), it
> > works.
> >
> > So, I guess the actual write is happening in a different thread. How can
> > I tell when the write is complete (ie., all the bytes from input
> > stream are transferred to the remote file).
> >
> > Btw, I am using openssh-3.6.1p2-34 on the remote system. The local
> > system is Fedora core 3. java 1.4.2-6.
> >
> >           JSch jsch=new JSch();
> >            jsch.addIdentity(privKeyFile.getAbsolutePath());
> >            Session session=jsch.getSession(username,
> > remHost.getHostAddress(), remPort);
> >            // establish ssh session
> >            UserInfo userInfo = new UserInfo() {
> >
> >                public String getPassphrase() {
> >                    return pass;
> >                }
> >
> >                public String getPassword() {
> >                    return pass;
> >                }
> >
> >                public boolean promptPassword(String message) {
> >                    System.out.println("passwd prompt: "+message);
> >                    return false;
> >                }
> >
> >                public boolean promptPassphrase(String message) {
> >                    System.out.println("passphrase prompt: "+message);
> >                    return false;
> >                }
> >
> >                public boolean promptYesNo(String message) {
> >                    return true;
> >                }
> >
> >                public void showMessage(String message) {
> >                    System.out.println(message);
> >                }
> >            };
> >
> >            session.setUserInfo(userInfo);
> >            session.connect();
> >
> >            // execute command on remote system
> >            String cmd = "cat >> "+remFile;
> >            Channel channel = session.openChannel("exec");
> >            ((ChannelExec)channel).setCommand(cmd);
> >            InputStream bis = new ByteArrayInputStream(buf);
> >            channel.setInputStream(bis);
> >            channel.setOutputStream(System.out);
> >            ((ChannelExec)channel).setErrStream(System.err);
> >            channel.connect();
> >
> > //            try {
> > //                Thread.sleep(1000);
> > //            } catch (InterruptedException ex) {
> > //                ex.printStackTrace();
> > //            }
> >
> >            // disconnect session
> > //            session.disconnect();
> >
> > Thanks,
> > Satish.
> >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
> > Tool for open source databases. Create drag-&-drop reports. Save time
> > by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
> > Download a FREE copy at http://www.intelliview.com/go/osdn_nl
> > _______________________________________________
> > JSch-users mailing list
> > JSc...@li...
> > https://lists.sourceforge.net/lists/listinfo/jsch-users
> >
> >
> >
> 
> 
> 
> _________________________________________________
> Scanned on 23 Jan 2005 22:43:46
> 
-- 
Satish Annapureddy
Myrio Corporation

sa...@my...
tel 425-368-4472
fax 425-368-4500