[Red5devs] Log messages

[Art Clarke]

Paul to help:

public void giveWalterAnExampleInAction() {
  String s = "this is an example";
  Integer i = new Integer(5);
  Double d = new Double(i);

  // You can pass in one var arg
  log.debug("Here's the string: {}", s);
  // You can pass in two var args...
  log.debug("Here's the string: {}; here's the integer: {}", s, i);
  // But for more than two, you must pass in an array of arguments for expansion
  log.debug("Here's the string: {}; here's the integer: {}; and
annoyingly here's the double: {}",
   new Object[] { s, i, d});
}

On Wed, Oct 29, 2008 at 8:52 AM, Walter Tak <walter at waltertak.com> wrote:
> What is "e" ?
> What is "job" ?
>
> Can you give us a preferred example if I would want to print , say , a
> simple variable.
> Can you give us a preferred example if I would want to print , say ,
> multiple variables.
>
> I'm sure I can figure this out in 2 minutes but it would be good if it's
> explicitly written down for all other developers, just in case.
>
> Regards,
> Walter
>
> My fellow devs..
> When you create log messages please use this form
> log.error("Job {} execution failed", job.toString(), e);
>
> instead of using string concatenation
>
> log.error("Job " + job.toString() + " execution failed", e);
>
> The logging system is optimized to handle parameter replacements with
> incurring a concat penalty. Ill update the wiki about it one of these days..
>
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