JarCastingfluentd-standalone 
Standalone fluentd (http://fluentd.org) server for Java and Scala.
This library launches a new fluentd server using a random port when fluentd is not started in the node.
Use cases:
- Running test codes that use fluentd (logger) in a build server (e.g., Travis CI, Jenkins, etc.), in which fluentd is not running.
Usage (Java/Scala)
fluentd depends on some ruby modules. You need to install these dependencies first.
The simplest way is just install fluentd.
$ gem install fluentd -v 1.6.2
See also http://docs.fluentd.org/articles/quickstart.
Maven
<dependencies>
...
<dependency>
<groupId>org.xerial</groupId>
<artifactId>fluentd-standalone_2.12</artifactId>
<version>1.2.6</version>
</dependency>
...
</dependencies>
sbt
libraryDependencies += "org.xerial" %% "fluentd-standalone" % "1.6.2"
Sample code
import xerial.fluentd.FluentdStandalone;
FluentdStandalone s = new FluentdStandalone();
// Start new fluentd server
s.start();
// Send log messsages to fluentd
int port = s.port(); // fluentd port
// Terminate the fluentd
s.stop();
For developers
$ git clone https://github.com/xerial/fluentd-standalone.git
$ cd fluentd-standalone
$ git submodule init # Only for the first time
$ git submodule update # Fetch fluentd
# Run tests
$ ./sbt test