This package provides some Java classes to help with the providing application metrics.
- For more information, visit the SimpleMetrics home page.
- Online documentation can be found off the home page. Here are the code Javadocs.
- Browse the code on the git repository.
- Maven packages are published via
Enjoy. Gray Watson
I've checked in a little example program.
Here's a quick code sample showing how to get started.
// create our metrics manager which controls everything
MetricsManager metricsManager = new MetricsManager();
// create and register a persister, you will probably want to write your own for your own logging
LoggingMetricsPersister persister = new LoggingMetricsPersister();
metricsManager.setMetricValuesPersisters(new MetricValuesPersister[] { persister });
// create and register one (or many) metrics
ControlledMetricAccum hitCounter =
new ControlledMetricAccum("example", null, "hits", "number of hits to the cache", null);
metricsManager.registerMetric(hitCounter);
// optionally start a persister thread to persist the metrics every minute (60000 millis)
MetricsPersisterJob persisterThread = new MetricsPersisterJob(manager, 60000, 60000, true);
// now the metric can be incremented whenever a "hit" occurs
hitCounter.increment();
// or maybe we need to account for a bunch of hits
hitCounter.add(23);
// ...
// the persister will log the value of hitCounter every 60 seconds automatically
<dependencies>
<dependency>
<groupId>com.j256.simplemetrics</groupId>
<artifactId>simplemetrics</artifactId>
<!-- NOTE: change the version to the most recent release version from the repo -->
<version>1.10</version>
</dependency>
</dependencies>See the ChangeLog.txt file.