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Merge pull request #9 from typelevel/runtime-metrics-jvm
Implement JVM RuntimeMetrics
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55 changes: 55 additions & 0 deletions
55
...metrics/jvm/src/main/scala/org/typelevel/otel4s/experimental/metrics/RuntimeMetrics.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * Copyright 2024 Typelevel | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package org.typelevel.otel4s.experimental.metrics | ||
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| import cats.effect.Async | ||
| import cats.effect.Resource | ||
| import cats.effect.std.Console | ||
| import org.typelevel.otel4s.experimental.metrics.jvm._ | ||
| import org.typelevel.otel4s.metrics.Meter | ||
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| object RuntimeMetrics { | ||
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| /** Registers the JVM runtime metrics: | ||
| * - Class | ||
| * - `jvm.class.count` | ||
| * - `jvm.class.loaded` | ||
| * - `jvm.class.unloaded` | ||
| * - CPU | ||
| * - `jvm.cpu.count` | ||
| * - `jvm.cpu.recent_utilization` | ||
| * - `jvm.cpu.time` | ||
| * - GC | ||
| * - `jvm.gc.duration` | ||
| * - Memory | ||
| * - `jvm.memory.committed` | ||
| * - `jvm.memory.limit` | ||
| * - `jvm.memory.used` | ||
| * - `jvm.memory.used_after_last_gc` | ||
| * - Thread | ||
| * - `jvm.thread.count` | ||
| */ | ||
| def register[F[_]: Async: Meter: Console]: Resource[F, Unit] = | ||
| for { | ||
| _ <- ClassMetrics.register | ||
| _ <- CpuMetrics.register | ||
| _ <- GarbageCollectorMetrics.register | ||
| _ <- MemoryPoolMetrics.register | ||
| _ <- ThreadMetrics.register | ||
| } yield () | ||
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| } |
52 changes: 52 additions & 0 deletions
52
...trics/jvm/src/main/scala/org/typelevel/otel4s/experimental/metrics/jvm/ClassMetrics.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /* | ||
| * Copyright 2024 Typelevel | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package org.typelevel.otel4s.experimental.metrics.jvm | ||
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| import cats.effect.Resource | ||
| import cats.effect.Sync | ||
| import cats.effect.syntax.resource._ | ||
| import cats.syntax.flatMap._ | ||
| import cats.syntax.functor._ | ||
| import org.typelevel.otel4s.metrics.Meter | ||
| import org.typelevel.otel4s.semconv.metrics.JvmMetrics | ||
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| import java.lang.management.ManagementFactory | ||
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| /** @see | ||
| * [[https://opentelemetry.io/docs/specs/semconv/runtime/jvm-metrics/#jvm-classes]] | ||
| */ | ||
| object ClassMetrics { | ||
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| def register[F[_]: Sync: Meter]: Resource[F, Unit] = | ||
| Sync[F].delay(ManagementFactory.getClassLoadingMXBean).toResource.flatMap { bean => | ||
| Meter[F].batchCallback.of( | ||
| JvmMetrics.ClassCount.createObserver[F, Long], | ||
| JvmMetrics.ClassLoaded.createObserver[F, Long], | ||
| JvmMetrics.ClassUnloaded.createObserver[F, Long] | ||
| ) { (classCount, classLoaded, classUnloaded) => | ||
| for { | ||
| count <- Sync[F].delay(bean.getTotalLoadedClassCount) | ||
| loaded <- Sync[F].delay(bean.getLoadedClassCount) | ||
| unloaded <- Sync[F].delay(bean.getUnloadedClassCount) | ||
| _ <- classCount.record(count) | ||
| _ <- classLoaded.record(loaded.toLong) | ||
| _ <- classUnloaded.record(unloaded) | ||
| } yield () | ||
| } | ||
| } | ||
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| } |
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