RE: [Swftools-common] calling pdf2swf from java

[Andreas Haufler \(scireum\)]

Dear Stefan,

 

you need to read both, stdout and stderr from the started Process. Otherwise it might block. Try searching this list, I’ve already posted some example code how to do this (Basically start 2 threads and read both streams).

 

It looks roughly like this:

 

            StringBuffer logger = new StringBuffer();

            try {

                  Process p = Runtime.getRuntime().exec(command);

                  StreamEater errEater = StreamEater.eat(p.getErrorStream(), logger);

                  StreamEater outEater = StreamEater.eat(p.getInputStream(), logger);

                  try {

                        p.waitFor();

                  } catch (InterruptedException e) {

                        throw new ExecException(e, logger.toString());

                  }

                  return logger.toString();

            } catch (IOException e) {

                  throw new ExecException(e, logger.toString());

            }

 

StreamEater is a Runnable which looks like this:

            public void run() {

                  try {

                        InputStreamReader isr = new InputStreamReader(stream);

                        BufferedReader br = new BufferedReader(isr);

                        String line = br.readLine();

                        while (line != null) {

                             logger.append(line);

                             logger.append("\n");

                             line = br.readLine();

                        }

                        br.close();

                  } catch (IOException e) {

                        logger.append(Tools.asString(e));

                  }

            }

 

Regards

Andy

 

 

freundliche Grüße
scireum - Ein Unternehmen der TTI GmbH

i.A. Andreas Haufler
Projektleiter scireum

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Fax: (0711) 69394635  -  Internet: http://www.scireum.de

 

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From: address@hidden [mailto:address@hidden On Behalf Of Canda Stefan
Sent: Monday, November 23, 2009 12:43 PM
To: address@hidden
Subject: [Swftools-common] calling pdf2swf from java

 

Hi,

I have a problem when calling pdf2swf from java. When i converting bigger file it freeze, but when i make it from command line it works fine.

Some ideas?

 

Here is the code i use:

try

{

Process proc = Runtime.getRuntime().exec(command.toString()); 

BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(proc.getOutputStream()) ); 

  

String message = "SC"; 

writer.write(message, 0, 1);

logger.debug("\n\twaiting while convert finish --->"+new Date());

Timer timer = new Timer();

timer.schedule(new InterruptScheduler(Thread.currentThread()), TIMEOUT);

try

{

                        proc.waitFor();

                        logger.debug("\n\tconvert done --->"+new Date());

                        System.out.println("\n\thotovo..."); 

                        return saveFilename;

}

catch (InterruptedException e)

{

                        // Stop the process from running

                        logger.debug("\n\ttimeout expired --->"+new Date());

                         proc.destroy();

                         return "errorPdf2swf";

}

finally

{

                         // Stop the timer

                         timer.cancel();

}

} 

catch (Exception e)

{ 

              e.printStackTrace(); 

} 

                   

return null;

 

 

Thanks for help

 

Stetka

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