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Static Wrapper of SLF4J easing you from the necessity to create static LOGGER instances in each Java class

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jcabi/jcabi-log

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More details are here: log.jcabi.com

Read this blog post: Get Rid of Java Static Loggers

Logger is a convenient static wrapper of slf4j (don't forget to include one of SLF4J Bindings into the project):

import com.jcabi.log.Logger;
class Foo {
  void bar(int value) {
    Logger.debug(this, "method #bar(%d) was called", value);
  }
}

Besides standard %s placeholders inside the format string, you can use other custom ones, which help formatting common values faster:

  • %[file]s --- absolute file name ➜ file name relative to current directory
  • %[text]s --- any string ➜ pretty looking text, short enough, and escaped
  • %[exception]s --- Exception ➜ stacktrace
  • %[list]s --- Iterable ➜ pretty formatted list, in one line
  • %[size]s --- size in bytes ➜ Kb, Mb, Gb, Tb, and so on
  • %[msec]s --- milliseconds ➜ ms, sec, min, hours, etc.
  • %[nano]s --- nanoseconds ➜ µs, ms, sec, min, hours, etc.
  • %[type]s --- Class<?> ➜ name of it
  • %[secret]s --- any string ➜ stars
  • %[dom]s --- org.w3c.domDocument ➜ pretty printed/formatted XML

You are welcome to suggest your own "decors".

How to contribute?

Fork the repository, make changes, submit a pull request. We promise to review your changes same day and apply to the master branch, if they look correct.

Please run Maven build before submitting a pull request:

mvn clean install -Pqulice