Shutdown hook to close logger context
-------------------------------------
Key: LBCORE-202
URL: http://jira.qos.ch/browse/LBCORE-202
Project: logback-core
Issue Type: Improvement
Components: Other
Affects Versions: 0.9.27
Reporter: Tuomas Kiviaho
Assignee: Logback dev list
I'm using header and footer with my file appender and would like footers to be
present in file when processes exit (JUnit tests mainly). I figured out a to
achieve this by using status listeners and logger context (presented below)
combined with shutdown hook. This is something that logback jar could probably
in one form or another (spring framework for instance has similar feature for
their context).
public class ShutdownHookStatusListener extends ContextAwareBase implements
StatusListener, LifeCycle {
private Thread shutdownHook;
@Override
public void addStatusEvent(Status status) {
}
@Override
public boolean isStarted() {
return this.shutdownHook != null;
}
@Override
public void start() {
if (!this.isStarted()) {
this.shutdownHook = new Thread() {
@Override
public void run() {
LoggerContext loggerContext =
(LoggerContext) LoggerFactory
.getILoggerFactory();
loggerContext.stop();
}
};
Runtime runtime = Runtime.getRuntime();
runtime.addShutdownHook(this.shutdownHook);
}
}
@Override
public void stop() {
if (this.isStarted()) {
Runtime runtime = Runtime.getRuntime();
runtime.removeShutdownHook(this.shutdownHook);
this.shutdownHook = null;
}
}
}
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