public void evaluate() {
// check for changes in metric rules
RulesConfigurationChangeRequest tempNewChangeRequest = newChangeRequest;
if (tempNewChangeRequest != null && tempNewChangeRequest != currentChangeRequest) {
this.currentChangeRequest = tempNewChangeRequest;
for (String alertId : currentChangeRequest.getMetricAlertsToRemove()) {
MetricsConfigurator.removeGauge(metrics, AlertsUtil.getAlertGaugeName(alertId), name, rev);
}
}
if (currentChangeRequest != null) {
List<MetricsRuleDefinition> metricsRuleDefinitions =
currentChangeRequest.getRuleDefinitions().getMetricsRuleDefinitions();
if (metricsRuleDefinitions != null) {
for (MetricsRuleDefinition metricsRuleDefinition : metricsRuleDefinitions) {
MetricRuleEvaluator metricAlertsHelper =
new MetricRuleEvaluator(
metricsRuleDefinition,
metrics,
alertManager,
currentChangeRequest.getRuleDefinitions().getEmailIds());
metricAlertsHelper.checkForAlerts();
}
}
}
}
@Test
public void testHistogramDisabled() {
// create timer with id "testMetricAlerts" and register with metric registry, bump up value to
// 4.
Histogram h =
MetricsConfigurator.createHistogram5Min(
metrics, "testHistogramDisabled", PIPELINE_NAME, REVISION);
h.update(1000);
MetricsRuleDefinition metricsRuleDefinition =
new MetricsRuleDefinition(
"testHistogramDisabled",
"testHistogramDisabled",
"testHistogramDisabled",
MetricType.HISTOGRAM,
MetricElement.HISTOGRAM_COUNT,
"${value()==1}",
false,
false);
MetricRuleEvaluator metricRuleEvaluator =
new MetricRuleEvaluator(
metricsRuleDefinition,
metrics,
new AlertManager(
PIPELINE_NAME, REVISION, null, metrics, runtimeInfo, new EventListenerManager()),
Collections.<String>emptyList());
metricRuleEvaluator.checkForAlerts();
// get alert gauge
Gauge<Object> gauge =
MetricsConfigurator.getGauge(
metrics, AlertsUtil.getAlertGaugeName(metricsRuleDefinition.getId()));
Assert.assertNull(gauge);
}
@Test
public void testTimerMatch() {
// create timer with id "testMetricAlerts" and register with metric registry, bump up value to
// 4.
Timer t = MetricsConfigurator.createTimer(metrics, "testTimerMatch", PIPELINE_NAME, REVISION);
t.update(1000, TimeUnit.MILLISECONDS);
t.update(2000, TimeUnit.MILLISECONDS);
t.update(3000, TimeUnit.MILLISECONDS);
MetricsRuleDefinition metricsRuleDefinition =
new MetricsRuleDefinition(
"testTimerMatch",
"testTimerMatch",
"testTimerMatch",
MetricType.TIMER,
MetricElement.TIMER_COUNT,
"${value()>2}",
false,
true);
MetricRuleEvaluator metricRuleEvaluator =
new MetricRuleEvaluator(
metricsRuleDefinition,
metrics,
new AlertManager(
PIPELINE_NAME, REVISION, null, metrics, runtimeInfo, new EventListenerManager()),
Collections.<String>emptyList());
metricRuleEvaluator.checkForAlerts();
// get alert gauge
Gauge<Object> gauge =
MetricsConfigurator.getGauge(
metrics, AlertsUtil.getAlertGaugeName(metricsRuleDefinition.getId()));
Assert.assertNotNull(gauge);
Assert.assertEquals((long) 3, ((Map<String, Object>) gauge.getValue()).get("currentValue"));
}
@Test
public void testMeterNoMatch() {
// create timer with id "testMetricAlerts" and register with metric registry, bump up value to
// 4.
Meter m = MetricsConfigurator.createMeter(metrics, "testMeterNoMatch", PIPELINE_NAME, REVISION);
m.mark(1000);
MetricsRuleDefinition metricsRuleDefinition =
new MetricsRuleDefinition(
"testMeterNoMatch",
"testMeterNoMatch",
"testMeterNoMatch",
MetricType.METER,
MetricElement.METER_COUNT,
"${value()>1001}",
false,
true);
MetricRuleEvaluator metricRuleEvaluator =
new MetricRuleEvaluator(
metricsRuleDefinition,
metrics,
new AlertManager(
PIPELINE_NAME, REVISION, null, metrics, runtimeInfo, new EventListenerManager()),
Collections.<String>emptyList());
metricRuleEvaluator.checkForAlerts();
// get alert gauge
Gauge<Object> gauge =
MetricsConfigurator.getGauge(
metrics, AlertsUtil.getAlertGaugeName(metricsRuleDefinition.getId()));
Assert.assertNull(gauge);
}