Redirecting System.err on two output

[ZioBafio]

Hi All!

I need to redirect System.err on two output, in order to keep track of exception both on a file and on console

at this moment, I only redirect errors output on a file:

System.setErr(out);

where out is a PrintStream

when an exception occours, I'd like to print a video message also

the best result would be to print the entire stack trace, but even writing "ERROR" would be fine

could anyone help me?

[JosAH]

I think the simplest solution is to implement a 'tee' OutputStream like this:

public class TeeOutputStream extends OutputStream {
   private OutputStream out1;
   private OutputStream out2;

   public TeeOutputStream(OutputStream out1, OutputStream out2) {
      this.out1= out1;
      this.out2= out2;
   }

   public void write(int b) throws IOException {
      out1.write(b);
      out2.write(b);
   }
}

Pass two OutputStreams to its constructor and all output writen to the TeeOutputStream will be written to the two encapsulated OutputStreams.

kind regards,

Jos

[ZioBafio]

it seems perfect!

thanks!!