commons-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From sebb <seb...@gmail.com>
Subject Re: Commons Exec not producing the same result as the command line
Date Mon, 26 Apr 2010 12:16:10 GMT
On 26/04/2010, Daniel Wamara <daolwin@hotmail.com> wrote:
> Yes, I happened to sort it out, thanks.

What was the resolution please?

Just in case anyone else hits the same problem, it would be useful to
have the solution in the mail archives.

>  Daniel
>
>  --------------------------------------------------
>  From: "Siegfried Goeschl" <siegfried.goeschl@it20one.at>
>  Sent: Monday, April 19, 2010 7:04 PM
>
>  To: "Commons Users List" <user@commons.apache.org>
>  Subject: Re: Commons Exec not producing the same result as the command line
>
>
> > Hi Daniel,
> >
> > any progress and/or information regarding your problem?
> >
> > Cheers,
> >
> > Siegfried Goeschl
> >
> > On 14.04.10 11:54, Daniel Wamara wrote:
> >
> > > I did make a wrapper, that's the script I am calling from the exec and
> > > even calling the wrapper through exec, I get the same thing I get when I
> > > use no wrapper. It's very unlikely that another application is picked up
> > > as it is the only instance of the application installed on the server (a
> > > Red Hat EL 3).
> > >
> > > Daniel
> > >
> > > --------------------------------------------------
> > > From: "sebb" <sebbaz@gmail.com>
> > > Sent: Wednesday, April 14, 2010 11:46 AM
> > > To: "Commons Users List" <user@commons.apache.org>
> > > Subject: Re: Commons Exec not producing the same result as the command
> line
> > >
> > >
> > > > On 14/04/2010, Daniel Wamara <daolwin@hotmail.com> wrote:
> > > >
> > > > > Very unlikely IMO because they both call an external process which
> has
> > > > > nothing to do with Java and if there was some kind of problem with
> > > > > the path,
> > > > > I think the external process would have thrown an error of some
> kind.
> > > > >
> > > >
> > > > If the PATH is different, it may pick up a different application.
> > > >
> > > > Do other Exec calls work OK?
> > > >
> > > > Try creating a wrapper shell script with no parameters.
> > > > Call that interactively and from Exec.
> > > > Add debug echo statements as necessary to determine what is happening.
> > > >
> > > >
> > > > > Regards,
> > > > > Daniel W.
> > > > >
> > > > > --------------------------------------------------
> > > > > From: "sebb" <sebbaz@gmail.com>
> > > > > Sent: Wednesday, April 14, 2010 11:36 AM
> > > > >
> > > > > To: "Commons Users List" <user@commons.apache.org>
> > > > > Subject: Re: Commons Exec not producing the same result as the
> > > > > command line
> > > > >
> > > > >
> > > > > > On 14/04/2010, sebb <sebbaz@gmail.com> wrote:
> > > > > >
> > > > > > > On 14/04/2010, Daniel Wamara <daolwin@hotmail.com>
wrote:
> > > > > > > > Thanks but I don't think this will help solve the
problem as I
> > > > can
> > > > > see in
> > > > > > > > the log that the command which is executed is the
correct one
> > > > > and > > as
> > > > > said,
> > > > > > > > copy-pasting the command seen in the logs is producing
a file
> > > > > completely
> > > > > > > > different than the one created by Commons Exec.
> > > > > > >
> > > > > > >
> > > > > > > Then the two invocations are most likely using different
> > > > > classpaths > > at
> > > > > > > some point.
> > > > > > >
> > > > > >
> > > > > > ... I mean PATHs.
> > > > > >
> > > > > >
> > > > > > >
> > > > > > > > Regards,
> > > > > > > > Daniel W.
> > > > > > > >
> > > > > > > >
> --------------------------------------------------
> > > > > > > > From: "sebb" <sebbaz@gmail.com>
> > > > > > > > Sent: Wednesday, April 14, 2010 1:18 AM
> > > > > > > > To: "Commons Users List" <user@commons.apache.org>
> > > > > > > > Subject: Re: Commons Exec not producing the same result
as the
> > > > > command line
> > > > > > > >
> > > > > > > >
> > > > > > > > >
> > > > > > > > > On 13/04/2010, Daniel Wamara <daolwin@hotmail.com>
wrote:
> > > > > > > > >
> > > > > > > > > > Good evening all,
> > > > > > > > > >
> > > > > > > > > > I am trying to call ffmpeg via the command
exec in order
> to
> > > > > transcode
> > > > > > > > some files and the strange thing happening is that
the files >
> > > > > > produced
> > > > > are
> > > > > > > > not the same as the one I can create when calling
the same > >
> > command
> > > > > via the
> > > > > > > > command line.
> > > > > > > > > >
> > > > > > > > > > This is how I am calling fmpeg and I get
a file with a
> > > > > particular codec
> > > > > > > > in it (strangely not the right one) although launching
in the
> >
> > > > > > command
> > > > > line
> > > > > > > > exactly what I have in the sb.toString() which is
the command
> > > > > to > > be
> > > > > > > > executed, the file created has a correct codec. So
to say, the
> > > > > > > same
> > > > > command
> > > > > > > > started via Exec and the one started via the command
line have
> > > > not
> > > > > the same
> > > > > > > > result. Anyone has an idea?
> > > > > > > > > >
> > > > > > > > > > Thanks.
> > > > > > > > > > Daniel Wamara
> > > > > > > > > >
> > > > > > > > > > StringBuilder sb = new
> > > > > > > >
> StringBuilder("/home/ect/scripts/transcoding.sh ");
> > > > > > > > > >
> > > > > > > > > > sb.append(" " + source.getAbsolutePath());
> > > > > > > > > >
> > > > > > > > > > sb.append(" " + attributes.getCodec());
> > > > > > > > > >
> > > > > > > > > > sb.append(" " +
> > > > > > > >
> > > > >
> String.valueOf(attributes.getSamplingRate().intValue()));
> > > > > > > > > >
> > > > > > > > > > sb.append(" " + target.getAbsolutePath());
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > logDebug("command --> " + sb.toString());
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > CommandLine commandLine =
> > > > > > > > CommandLine.parse(sb.toString());
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > > Why do you build up the command-line and then
parse it?
> > > > > > > > >
> > > > > > > > > Much safer to add the arguments one at a time,
see:
> > > > > > > > >
> > > > > > > > >
> http://commons.apache.org/exec/tutorial.html
> > > > > > > > >
> > > > > > > > > under the heading "Build the Command Line Incrementally"
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > DefaultExecutor executor = new DefaultExecutor();
> > > > > > > > > >
> > > > > > > > > > executor.execute(commandLine);
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > > > > > To unsubscribe, e-mail:
> > > > > > > > user-unsubscribe@commons.apache.org
> > > > > > > > > For additional commands, e-mail:
> user-help@commons.apache.org
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > > > > To unsubscribe, e-mail:
> > > > > > > > user-unsubscribe@commons.apache.org
> > > > > > > > For additional commands, e-mail: user-help@commons.apache.org
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > > To unsubscribe, e-mail:
> > > > > user-unsubscribe@commons.apache.org
> > > > > > For additional commands, e-mail: user-help@commons.apache.org
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > To unsubscribe, e-mail:
> > > > > user-unsubscribe@commons.apache.org
> > > > > For additional commands, e-mail: user-help@commons.apache.org
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail:
> user-unsubscribe@commons.apache.org
> > > > For additional commands, e-mail: user-help@commons.apache.org
> > > >
> > > >
> > > >
> > >
> > >
> ---------------------------------------------------------------------
> > > To unsubscribe, e-mail:
> user-unsubscribe@commons.apache.org
> > > For additional commands, e-mail: user-help@commons.apache.org
> > >
> > >
> > >
> >
> >
> ---------------------------------------------------------------------
> > To unsubscribe, e-mail:
> user-unsubscribe@commons.apache.org
> > For additional commands, e-mail: user-help@commons.apache.org
> >
> >
> >
>
> ---------------------------------------------------------------------
>  To unsubscribe, e-mail:
> user-unsubscribe@commons.apache.org
>  For additional commands, e-mail: user-help@commons.apache.org
>
>

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
For additional commands, e-mail: user-help@commons.apache.org


Mime
View raw message