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! statsd: allow custom statsd senders + add simple statsd sender whic…
…h doesn't batch stats
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16 changes: 16 additions & 0 deletions
16
kamon-statsd/src/main/scala/kamon/statsd/SimpleMetricKeyGenerator.scala
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kamon-statsd/src/main/scala/kamon/statsd/SimpleStatsDMetricsSender.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /* | ||
| * ========================================================================================= | ||
| * Copyright © 2013-2015 the kamon project <http://kamon.io/> | ||
| * | ||
| * 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 kamon.statsd | ||
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| import akka.actor.Props | ||
| import com.typesafe.config.Config | ||
| import kamon.metric.SubscriptionsDispatcher.TickMetricSnapshot | ||
| import kamon.metric.instrument.{ Counter, Histogram } | ||
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| /** | ||
| * Factory for [[SimpleStatsDMetricsSender]]. | ||
| * Use FQCN of the object in "kamon.statsd.statsd-metrics-sender" | ||
| * to select [[SimpleStatsDMetricsSender]] as your sender | ||
| */ | ||
| object SimpleStatsDMetricsSender extends StatsDMetricsSenderFactory { | ||
| override def props(statsDConfig: Config, metricKeyGenerator: MetricKeyGenerator): Props = | ||
| Props(new SimpleStatsDMetricsSender(statsDConfig, metricKeyGenerator)) | ||
| } | ||
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| /** | ||
| * "Traditional" StatsD sender which sends a UDP packet for each piece of data it receives. | ||
| * @param statsDConfig Config to read settings specific to this sender | ||
| * @param metricKeyGenerator Key generator for all metrics sent by this sender | ||
| */ | ||
| class SimpleStatsDMetricsSender(statsDConfig: Config, metricKeyGenerator: MetricKeyGenerator) | ||
| extends UDPBasedStatsDMetricsSender(statsDConfig, metricKeyGenerator) { | ||
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| def writeMetricsToRemote(tick: TickMetricSnapshot, flushToUDP: String ⇒ Unit): Unit = { | ||
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| for ( | ||
| (entity, snapshot) ← tick.metrics; | ||
| (metricKey, metricSnapshot) ← snapshot.metrics | ||
| ) { | ||
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| val keyPrefix = metricKeyGenerator.generateKey(entity, metricKey) + ":" | ||
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| metricSnapshot match { | ||
| case hs: Histogram.Snapshot ⇒ | ||
| hs.recordsIterator.foreach { record ⇒ | ||
| flushToUDP(keyPrefix + encodeStatsDTimer(record.level, record.count)) | ||
| } | ||
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| case cs: Counter.Snapshot ⇒ | ||
| flushToUDP(keyPrefix + encodeStatsDCounter(cs.count)) | ||
| } | ||
| } | ||
| } | ||
| } |
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24 changes: 24 additions & 0 deletions
24
kamon-statsd/src/main/scala/kamon/statsd/StatsDMetricsSenderFactory.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| /* | ||
| * ========================================================================================= | ||
| * Copyright © 2013-2015 the kamon project <http://kamon.io/> | ||
| * | ||
| * 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 kamon.statsd | ||
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| import akka.actor.Props | ||
| import com.typesafe.config.Config | ||
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| trait StatsDMetricsSenderFactory { | ||
| def props(statsDConfig: Config, metricKeyGenerator: MetricKeyGenerator): Props | ||
| } |
76 changes: 76 additions & 0 deletions
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kamon-statsd/src/main/scala/kamon/statsd/UDPBasedStatsDMetricsSender.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| /* | ||
| * ========================================================================================= | ||
| * Copyright © 2013-2015 the kamon project <http://kamon.io/> | ||
| * | ||
| * 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 kamon.statsd | ||
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| import java.net.InetSocketAddress | ||
| import java.text.{ DecimalFormat, DecimalFormatSymbols } | ||
| import java.util.Locale | ||
| import akka.actor.{ Actor, ActorRef, ActorSystem } | ||
| import akka.io.{ IO, Udp } | ||
| import akka.util.ByteString | ||
| import com.typesafe.config.Config | ||
| import kamon.metric.SubscriptionsDispatcher.TickMetricSnapshot | ||
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| /** | ||
| * Base class for different StatsD senders utilizing UDP protocol. It implies use of one statsd server. | ||
| * @param statsDConfig Config to read settings specific to this sender | ||
| * @param metricKeyGenerator Key generator for all metrics sent by this sender | ||
| */ | ||
| abstract class UDPBasedStatsDMetricsSender(statsDConfig: Config, metricKeyGenerator: MetricKeyGenerator) | ||
| extends Actor with UdpExtensionProvider { | ||
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| import context.system | ||
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| val statsDHost = statsDConfig.getString("hostname") | ||
| val statsDPort = statsDConfig.getInt("port") | ||
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| val symbols = DecimalFormatSymbols.getInstance(Locale.US) | ||
| symbols.setDecimalSeparator('.') // Just in case there is some weird locale config we are not aware of. | ||
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| // Absurdly high number of decimal digits, let the other end lose precision if it needs to. | ||
| val samplingRateFormat = new DecimalFormat("#.################################################################", symbols) | ||
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| udpExtension ! Udp.SimpleSender | ||
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| lazy val socketAddress = new InetSocketAddress(statsDHost, statsDPort) | ||
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| def receive = { | ||
| case Udp.SimpleSenderReady ⇒ | ||
| context.become(ready(sender)) | ||
| } | ||
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| def ready(udpSender: ActorRef): Receive = { | ||
| case tick: TickMetricSnapshot ⇒ | ||
| writeMetricsToRemote(tick, | ||
| (data: String) ⇒ udpSender ! Udp.Send(ByteString(data), socketAddress)) | ||
| } | ||
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| def writeMetricsToRemote(tick: TickMetricSnapshot, flushToUDP: String ⇒ Unit): Unit | ||
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| def encodeStatsDTimer(level: Long, count: Long): String = { | ||
| val samplingRate: Double = 1D / count | ||
| level.toString + "|ms" + (if (samplingRate != 1D) "|@" + samplingRateFormat.format(samplingRate) else "") | ||
| } | ||
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| def encodeStatsDCounter(count: Long): String = count.toString + "|c" | ||
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| } | ||
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| trait UdpExtensionProvider { | ||
| def udpExtension(implicit system: ActorSystem): ActorRef = IO(Udp) | ||
| } | ||
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