@Bean
@ConditionalOnProperty(value = "aws.metrics.enabled", matchIfMissing = true)
SpectatorMetricCollector spectatorMetricsCollector(Registry registry) {
SpectatorMetricCollector collector = new SpectatorMetricCollector(registry);
AwsSdkMetrics.setMetricCollector(collector);
return collector;
}
@Test
public void isMetricEnabled() {
// originally disabled
assertFalse(AwsSdkMetrics.isMetricsEnabled());
// set to NONE, so still disabled
AwsSdkMetrics.setMetricCollector(MetricCollector.NONE);
assertFalse(AwsSdkMetrics.isMetricsEnabled());
// set to a custom collector, so now considered enabled
AwsSdkMetrics.setMetricCollector(
new MetricCollector() {
@Override
public boolean start() {
return true;
}
@Override
public boolean stop() {
return false;
}
@Override
public boolean isEnabled() {
return true;
}
@Override
public RequestMetricCollector getRequestMetricCollector() {
return RequestMetricCollector.NONE;
}
@Override
public ServiceMetricCollector getServiceMetricCollector() {
return ServiceMetricCollector.NONE;
}
});
assertTrue(AwsSdkMetrics.isMetricsEnabled());
}
/**
* Starts the default AWS SDK request metric collector, but only if no request metric collector is
* currently in use at the AWS SDK level.
*
* @return true if the default AWS SDK request metric collector has been successfully started by
* this call; false otherwise.
*/
public static synchronized boolean enableDefaultMetrics() {
if (mc == null || !mc.isEnabled()) {
if (dirtyEnabling) {
throw new IllegalStateException("Reentrancy is not allowed");
}
dirtyEnabling = true;
try {
Class<?> c = Class.forName(DEFAULT_METRIC_COLLECTOR_FACTORY);
MetricCollector.Factory f = (MetricCollector.Factory) c.newInstance();
MetricCollector instance = f.getInstance();
if (instance != null) {
setMetricCollector(instance);
return true;
}
} catch (Exception e) {
LogFactory.getLog(AwsSdkMetrics.class).warn("Failed to enable the default metrics", e);
} finally {
dirtyEnabling = false;
}
}
return false;
}
/** Convenient method to disable the request metric collector at the AWS SDK level. */
public static void disableMetrics() {
setMetricCollector(MetricCollector.NONE);
}