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Fast and reliable message broker built on top of Kafka.
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package pl.allegro.tech.hermes.common.metric;
import static pl.allegro.tech.hermes.common.metric.SubscriptionTagsFactory.subscriptionTags;
import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.DistributionSummary;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tags;
import java.util.function.ToDoubleFunction;
import pl.allegro.tech.hermes.api.SubscriptionName;
import pl.allegro.tech.hermes.metrics.HermesCounter;
import pl.allegro.tech.hermes.metrics.HermesHistogram;
import pl.allegro.tech.hermes.metrics.HermesTimer;
import pl.allegro.tech.hermes.metrics.counters.HermesCounters;
public class SubscriptionMetrics {
private final MeterRegistry meterRegistry;
public SubscriptionMetrics(MeterRegistry meterRegistry) {
this.meterRegistry = meterRegistry;
}
public SubscriptionHermesCounter throughputInBytes(SubscriptionName subscription) {
return SubscriptionHermesCounter.from(
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_THROUGHPUT, subscription),
subscription);
}
public HermesCounter successes(SubscriptionName subscription) {
return size ->
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_DELIVERED, subscription)
.increment(size);
}
public HermesCounter batchSuccesses(SubscriptionName subscription) {
return HermesCounters.from(
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_BATCHES, subscription));
}
public HermesCounter discarded(SubscriptionName subscription) {
return size ->
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_DISCARDED, subscription)
.increment(size);
}
public HermesCounter retries(SubscriptionName subscription) {
return size ->
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_RETRIES, subscription)
.increment(size);
}
public HermesTimer latency(SubscriptionName subscription) {
return HermesTimer.from(
meterRegistry.timer(
SubscriptionMetricsNames.SUBSCRIPTION_LATENCY, subscriptionTags(subscription)));
}
public HermesTimer rateLimiterAcquire(SubscriptionName subscription) {
return HermesTimer.from(
meterRegistry.timer(
SubscriptionMetricsNames.SUBSCRIPTION_RATE_LIMITER_ACQUIRE,
subscriptionTags(subscription)));
}
public void registerInflightGauge(
SubscriptionName subscription, T obj, ToDoubleFunction f) {
meterRegistry.gauge(
SubscriptionMetricsNames.SUBSCRIPTION_INFLIGHT, subscriptionTags(subscription), obj, f);
}
public void registerPendingOffsetsGauge(
SubscriptionName subscription, T obj, ToDoubleFunction f) {
meterRegistry.gauge(
SubscriptionMetricsNames.SUBSCRIPTION_PENDING_OFFSETS,
subscriptionTags(subscription),
obj,
f);
}
public HermesTimer consumerIdleTimer(SubscriptionName subscription) {
return HermesTimer.from(
meterRegistry.timer(
SubscriptionMetricsNames.SUBSCRIPTION_IDLE_DURATION, subscriptionTags(subscription)));
}
public HermesCounter filteredOutCounter(SubscriptionName subscription) {
return HermesCounters.from(
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_FILTERED_OUT, subscription));
}
public HermesCounter httpAnswerCounter(SubscriptionName subscription, int statusCode) {
return size ->
meterRegistry
.counter(
SubscriptionMetricsNames.SUBSCRIPTION_HTTP_STATUS_CODES,
Tags.concat(
subscriptionTags(subscription), "status_code", String.valueOf(statusCode)))
.increment(size);
}
public HermesCounter timeoutsCounter(SubscriptionName subscription) {
return HermesCounters.from(
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_TIMEOUTS, subscription));
}
public HermesCounter otherErrorsCounter(SubscriptionName subscription) {
return HermesCounters.from(
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_OTHER_ERRORS, subscription));
}
public HermesCounter failuresCounter(SubscriptionName subscription) {
return HermesCounters.from(
micrometerCounter(SubscriptionMetricsNames.SUBSCRIPTION_FAILURES, subscription));
}
public HermesHistogram inflightTimeInMillisHistogram(SubscriptionName subscriptionName) {
return value ->
DistributionSummary.builder(SubscriptionMetricsNames.SUBSCRIPTION_INFLIGHT_TIME)
.tags(subscriptionTags(subscriptionName))
.register(meterRegistry)
.record(value / 1000d);
}
private Counter micrometerCounter(String metricName, SubscriptionName subscription) {
return meterRegistry.counter(metricName, subscriptionTags(subscription));
}
public static class SubscriptionMetricsNames {
public static final String SUBSCRIPTION_DELIVERED = "subscription.delivered";
public static final String SUBSCRIPTION_THROUGHPUT = "subscription.throughput-bytes";
public static final String SUBSCRIPTION_BATCHES = "subscription.batches";
public static final String SUBSCRIPTION_DISCARDED = "subscription.discarded";
public static final String SUBSCRIPTION_RETRIES = "subscription.retries";
public static final String SUBSCRIPTION_LATENCY = "subscription.latency";
public static final String SUBSCRIPTION_RATE_LIMITER_ACQUIRE =
"subscription.rate-limiter-acquire";
public static final String SUBSCRIPTION_INFLIGHT = "subscription.inflight";
public static final String SUBSCRIPTION_PENDING_OFFSETS = "subscription.pending-offsets";
public static final String SUBSCRIPTION_IDLE_DURATION = "subscription.idle-duration";
public static final String SUBSCRIPTION_FILTERED_OUT = "subscription.filtered-out";
public static final String SUBSCRIPTION_HTTP_STATUS_CODES = "subscription.http-status-codes";
public static final String SUBSCRIPTION_TIMEOUTS = "subscription.timeouts";
public static final String SUBSCRIPTION_OTHER_ERRORS = "subscription.other-errors";
public static final String SUBSCRIPTION_FAILURES = "subscription.failures";
public static final String SUBSCRIPTION_INFLIGHT_TIME = "subscription.inflight-time-seconds";
}
}
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