JarCastingstatsd-netty
A Netty-based statsd client with Apache 2.0 License.
It requires Java 8, netty and SLF4J.
How to use:
Maven dependency:
<dependency>
<groupId>com.flozano.statsd-netty</groupId>
<artifactId>statsd-netty</artifactId>
<version>0.1.4</version>
</dependency>
Example code:
try (Metrics metrics = MetricsBuilder.create()
.withClient((clientBuilder) -> //
clientBuilder.withHost("127.0.0.1") //
.withPort(8125) //
.withSampleRate(0.5) // send 50% of metrics only
).withClock(Clock.systemUTC()).build()) {
// Send a counter metric immediately
metrics.counter("visitors").hit();
// Create a batch of metrics that will be sent at the end of the try
// block.
try (Metrics batch = metrics.batch()) {
batch.gauge("activeDatabaseConnections").value(
getConnectionsFromPool());
batch.gauge("activeSessions").delta(-1);
}
// Schedule a couple of gauges to be reported every 60 seconds
metrics.gauge("databaseConnectionPool", "activeConnections")
.supply(60, TimeUnit.SECONDS,
() -> getConnectionsFromPool());
metrics.gauge("databaseConnectionPool", "waitingForConnection")
.supply(1, TimeUnit.MINUTES,
() -> getWaitingForConnection());
// Measure the time spent inside the try block
try (TimeKeeping o = metrics.timer("timeSpentSavingData").time()) {
saveData();
}
}
(note that you should keep the "Metrics" instance open for the whole lifecycle of your application).
Copyright 2014 Francisco A. Lozano López
