public static void main(String[] args) throws Exception {
if (args.length != 1) {
System.err.println("Please specify the path to a properties file with your amazon keys.");
return;
}
CloudWatchMetricObserver observer =
new CloudWatchMetricObserver(
"SampleObserver", "SampleDomain", new PropertiesCredentials(new File(args[0])));
List<Tag> tags = new ArrayList<Tag>(2);
tags.add(InjectableTag.HOSTNAME);
tags.add(InjectableTag.IP);
BasicExample example = new BasicExample(tags);
DefaultMonitorRegistry.getInstance().register(Monitors.newObjectMonitor(example));
PollCallable poller =
new PollCallable(new MonitorRegistryMetricPoller(), BasicMetricFilter.MATCH_ALL);
while (true) {
example.counter.incrementAndGet();
example.setSampleGauge(Math.round(Math.random() * 1000));
observer.update(poller.call());
Thread.sleep(60000);
}
}
private DynamicCounter() {
super(BASE_CONFIG);
final String expiration = System.getProperty(EXPIRATION_PROP, DEFAULT_EXPIRATION);
final String expirationUnit = System.getProperty(EXPIRATION_PROP_UNIT, DEFAULT_EXPIRATION_UNIT);
final long expirationValue = Long.parseLong(expiration);
final TimeUnit expirationUnitValue = TimeUnit.valueOf(expirationUnit);
final long expireAfterMs = expirationUnitValue.toMillis(expirationValue);
counters = new ExpiringCache<>(expireAfterMs, StepCounter::new);
DefaultMonitorRegistry.getInstance().register(this);
}
@Test
public void testRun() throws Exception {
BasicCounter o1 = new BasicCounter("one");
o1.increment();
DefaultMonitorRegistry.getInstance().registerObject(o1);
List<MetricObserver> observerList = new ArrayList<MetricObserver>(1);
MemoryMetricObserver observer = new MemoryMetricObserver("test", 3);
observerList.add(observer);
MonitorRegistryMetricPoller poller =
new MonitorRegistryMetricPoller(DefaultMonitorRegistry.getInstance());
PollRunnable runnable = new PollRunnable(poller, BasicMetricFilter.MATCH_ALL, observerList);
runnable.run();
assertTrue(observer.getObservations().size() == 1);
assertTrue(observer.getObservations().get(0).get(0).getValue().intValue() == 1);
}
private DynamicTimer() {
super(BASE_CONFIG);
final String expiration = System.getProperty(EXPIRATION_PROP, DEFAULT_EXPIRATION);
final String expirationUnit = System.getProperty(EXPIRATION_PROP_UNIT, DEFAULT_EXPIRATION_UNIT);
final long expirationValue = Long.parseLong(expiration);
final TimeUnit expirationUnitValue = TimeUnit.valueOf(expirationUnit);
final long expireAfterMs = expirationUnitValue.toMillis(expirationValue);
timers =
new ExpiringCache<ConfigUnit, Timer>(
expireAfterMs,
new ConcurrentHashMapV8.Fun<ConfigUnit, Timer>() {
@Override
public Timer apply(final ConfigUnit configUnit) {
return new BasicTimer(configUnit.config, configUnit.unit);
}
});
DefaultMonitorRegistry.getInstance().register(this);
}
@Override
public void initialize() {
/* list of monitors */
List<Monitor<?>> monitors = getServoMonitors();
// publish metrics together under a single composite (it seems this name is ignored)
MonitorConfig commandMetricsConfig =
MonitorConfig.builder("HystrixCommand_" + key.name()).build();
BasicCompositeMonitor commandMetricsMonitor =
new BasicCompositeMonitor(commandMetricsConfig, monitors);
DefaultMonitorRegistry.getInstance().register(commandMetricsMonitor);
RollingCommandEventCounterStream.getInstance(key, properties)
.startCachingStreamValuesIfUnstarted();
CumulativeCommandEventCounterStream.getInstance(key, properties)
.startCachingStreamValuesIfUnstarted();
RollingCommandLatencyDistributionStream.getInstance(key, properties)
.startCachingStreamValuesIfUnstarted();
RollingCommandUserLatencyDistributionStream.getInstance(key, properties)
.startCachingStreamValuesIfUnstarted();
RollingCommandMaxConcurrencyStream.getInstance(key, properties)
.startCachingStreamValuesIfUnstarted();
}
/** Creates a new instance using {@link com.netflix.servo.DefaultMonitorRegistry}. */
public MonitorRegistryMetricPoller() {
this(DefaultMonitorRegistry.getInstance(), 0L, TimeUnit.MILLISECONDS, true);
}
/** Unregister all statistics from <tt>Servo</tt>. */
public static void shutdown() {
for (EurekaMonitors c : EurekaMonitors.values()) {
DefaultMonitorRegistry.getInstance().unregister(Monitors.newObjectMonitor(c.name(), c));
}
}