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org.zodiac.monitor.metrics.micrometer.MeterFacade Maven / Gradle / Ivy
package org.zodiac.monitor.metrics.micrometer;
import java.lang.reflect.Constructor;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Supplier;
import org.zodiac.sdk.toolkit.util.AssertUtil;
import org.zodiac.sdk.toolkit.util.NetworkUtil;
import org.zodiac.sdk.toolkit.util.collection.CollUtil;
import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.DistributionSummary;
import io.micrometer.core.instrument.Gauge;
import io.micrometer.core.instrument.ImmutableTag;
import io.micrometer.core.instrument.Meter;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import io.micrometer.core.instrument.Tags;
import io.micrometer.core.instrument.Timer;
import io.micrometer.core.instrument.distribution.DistributionStatisticConfig;
/**
* {@link MeterFacade}.
*
* Counter, Timer, Gauge, DistributionSummary, etc.
* {@link MeterRegistry}
*
*/
public abstract class MeterFacade {
static final Map, Constructor> CONSTRUCTOR_MAP = CollUtil.concurrentMap(8);
public static final String TAG_SELF_ID = "self";
private final String serviceId;
private final boolean secure;
private final int port;
private final MeterRegistry meterRegistry;
private final LocalInstanceSpec localSpec;
protected MeterFacade(MeterRegistry meterRegistry, String serviceId, boolean secure, int port) {
this.meterRegistry = AssertUtil.notNullOf(meterRegistry, "meterRegistry");
/*Replaced on 2024-02-16. START.*/
//this.serviceId = AssertUtil.hasText(serviceId, "serviceId");
this.serviceId = AssertUtil.notBlankOf(serviceId, "serviceId");
/*Replaced on 2024-02-16. END.*/
this.secure = secure;
this.port = port;
this.localSpec = createLocalInstanceSpec();
}
public String getServiceId() {
return serviceId;
}
public boolean isSecure() {
return secure;
}
public int getPort() {
return port;
}
public MeterRegistry getMeterRegistry() {
return meterRegistry;
}
public LocalInstanceSpec getLocalSpec() {
return localSpec;
}
protected LocalInstanceSpec createLocalInstanceSpec() {
String host = NetworkUtil.LOCAL_HOSTNAME;
String instanceId = host.concat(":").concat(String.valueOf(port));
return new LocalInstanceSpec(instanceId, serviceId, host, port, secure);
}
protected String[] applyDefaultTags(String... tags) {
List _tags = CollUtil.list(tags);
_tags.add(TAG_SELF_ID);
_tags.add(localSpec.getInstanceId());
return _tags.toArray(new String[0]);
}
//
// --- The Meter Metrics Active Recorder. ---
//
// --- Counter. ---
public Counter counter(String name, String help, String... tags) {
return Counter.builder(name).description(help).tags(applyDefaultTags(tags)).register(meterRegistry);
}
// --- Gauge. ---
public Gauge gauge(String name, String help, double number, String... tags) {
return gauge(name, help, () -> number, tags);
}
public Gauge gauge(String name, String help, Supplier supplier, String... tags) {
return Gauge.builder(name, supplier).description(help).tags(applyDefaultTags(tags)).register(meterRegistry);
}
// --- Timer. ---
public Timer timer(String name, String help, double[] percentiles, String... tags) {
return Timer.builder(name)
.description(help)
.tags(applyDefaultTags(tags))
.publishPercentiles(percentiles)
.publishPercentileHistogram()
.register(meterRegistry);
}
// --- Summary. ---
/**
* Used default configuration refer to: {@link DistributionStatisticConfig#DEFAULT} .
*
* @param name name
* @param help help
* @param scale scale
* @param percentiles percentile list
* @param tags tag list
* @return {@link DistributionSummary}
*/
public DistributionSummary summary(String name, String help, double scale, double[] percentiles, String... tags) {
return DistributionSummary.builder(name)
.description(help)
.tags(applyDefaultTags(tags))
.publishPercentiles(percentiles)
.publishPercentileHistogram()
.scale(scale)
.register(meterRegistry);
}
/**
* Used default configuration refer to: {@link DistributionStatisticConfig#DEFAULT}.
*
* @param name name
* @param help help
* @param scale scale
* @param tags tag list
* @return {@link DistributionSummary}
*/
public DistributionSummary summary(String name, String help, double scale, String... tags) {
return DistributionSummary.builder(name)
.description(help)
.tags(applyDefaultTags(tags))
.scale(scale)
.register(meterRegistry);
}
public DistributionSummary summary(Meter.Id id, DistributionStatisticConfig distributionStatisticConfig, double scale) {
List tags = CollUtil.list(id.getTags());
tags.add(new ImmutableTag(TAG_SELF_ID, localSpec.getInstanceId()));
Meter.Id newId = new Meter.Id(id.getName(), Tags.of(tags), id.getBaseUnit(), id.getDescription(), id.getType());
return obtainDistributionSummary(newId, distributionStatisticConfig, scale);
}
// //
// // --- The Metrics Passive Collector. ---
// //
//
// public GaugeMetricFamily getGauge(String name, String help, String... labelNames) {
// MetricFamilySamples samples = sampleRegistry.get(name);
// if (Objects.isNull(samples)) {
// synchronized (this) {
// samples = sampleRegistry.get(name);
// if (Objects.isNull(samples)) {
// sampleRegistry.put(name, samples = new GaugeMetricFamily(name, help, Arrays.asList(labelNames)));
// }
// }
// }
// samples = new GaugeMetricFamily(name, help, Arrays.asList(labelNames));
// return (GaugeMetricFamily) samples;
// }
//
// public CounterMetricFamily getCounter(String name, String help, String... labelNames) {
// MetricFamilySamples samples = sampleRegistry.get(name);
// if (Objects.isNull(samples)) {
// synchronized (this) {
// samples = sampleRegistry.get(name);
// if (Objects.isNull(samples)) {
// sampleRegistry.put(name, samples = new CounterMetricFamily(name, help, Arrays.asList(labelNames)));
// }
// }
// }
// return (CounterMetricFamily) samples;
// }
//
// public SummaryMetricFamily getSummary(String name, String help, String... labelNames) {
// MetricFamilySamples samples = sampleRegistry.get(name);
// if (Objects.isNull(samples)) {
// synchronized (this) {
// samples = sampleRegistry.get(name);
// if (Objects.isNull(samples)) {
// sampleRegistry.put(name, samples = new SummaryMetricFamily(name, help, Arrays.asList(labelNames)));
// }
// }
// }
// return (SummaryMetricFamily) samples;
// }
protected abstract DistributionSummary obtainDistributionSummary(Meter.Id id, DistributionStatisticConfig distributionStatisticConfig,
double scale);
// //
// // --- Tools Function. ---
// //
//
// public static Counter newPrometheusCounter(Meter.Id id) {
// return newConstructor(PrometheusCounter.class, new Object[] { id });
// }
//
// public static Timer newPrometheusTimer(Meter.Id id) {
// return newConstructor(PrometheusTimer.class, new Object[] { id });
// }
//
// public static DistributionSummary newPrometheusDistributionSummary(Meter.Id id) {
// return newConstructor(PrometheusDistributionSummary.class, new Object[] { id });
// }
@SuppressWarnings("unchecked")
public static T newConstructor(Class clazz, Object... args) {
try {
Constructor constructor = (Constructor) CONSTRUCTOR_MAP.get(clazz);
if (Objects.isNull(constructor)) {
synchronized (MeterFacade.class) {
if (Objects.isNull(constructor)) {
CONSTRUCTOR_MAP.put(clazz, constructor = getConstructor0(clazz));
}
}
}
return (T) constructor.newInstance(args);
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
static Constructor getConstructor0(Class clazz) throws NoSuchMethodException, SecurityException {
Constructor constructor = clazz.getDeclaredConstructor(Meter.Id.class);
constructor.setAccessible(true);
return constructor;
}
protected static class LocalInstanceSpec {
private String instanceId;
private String serviceId;
private String host;
private int port;
private boolean secure;
public LocalInstanceSpec(String instanceId, String serviceId, String host, int port, boolean secure) {
super();
this.instanceId = instanceId;
this.serviceId = serviceId;
this.host = host;
this.port = port;
this.secure = secure;
}
public String getInstanceId() {
return instanceId;
}
public String getServiceId() {
return serviceId;
}
public String getHost() {
return host;
}
public int getPort() {
return port;
}
public boolean isSecure() {
return secure;
}
}
}
