gerrit.onap Code Review - dcaegen2/collectors/hv-ves.git/blob

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * dcaegen2-collectors-veshv
   4  * ================================================================================
   5  * Copyright (C) 2018 NOKIA
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.onap.dcae.collectors.veshv.main.metrics
  21
  22 import arrow.syntax.function.memoize
  23 import io.micrometer.core.instrument.Counter
  24 import io.micrometer.core.instrument.binder.jvm.ClassLoaderMetrics
  25 import io.micrometer.core.instrument.binder.jvm.JvmGcMetrics
  26 import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics
  27 import io.micrometer.core.instrument.binder.jvm.JvmThreadMetrics
  28 import io.micrometer.core.instrument.binder.system.ProcessorMetrics
  29 import io.micrometer.prometheus.PrometheusConfig
  30 import io.micrometer.prometheus.PrometheusMeterRegistry
  31 import org.onap.dcae.collectors.veshv.boundary.Metrics
  32 import org.onap.dcae.collectors.veshv.domain.WireFrameMessage
  33 import org.onap.dcae.collectors.veshv.model.MessageDropCause
  34 import org.onap.dcae.collectors.veshv.model.ClientRejectionCause
  35 import org.onap.dcae.collectors.veshv.model.RoutedMessage
  36 import java.time.Duration
  37 import java.time.Instant
  38
  39
  40 /**
  41  * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
  42  * @since June 2018
  43  */
  44 class MicrometerMetrics internal constructor(
  45         private val registry: PrometheusMeterRegistry = PrometheusMeterRegistry(PrometheusConfig.DEFAULT)
  46 ) : Metrics {
  47
  48     private val receivedBytes = registry.counter(name(DATA, RECEIVED, BYTES))
  49     private val receivedMsgCount = registry.counter(name(MESSAGES, RECEIVED, COUNT))
  50     private val receivedMsgBytes = registry.counter(name(MESSAGES, RECEIVED, BYTES))
  51
  52     private val sentCountTotal = registry.counter(name(MESSAGES, SENT, COUNT))
  53     private val sentToTopicCount = { topic: String ->
  54         registry.counter(name(MESSAGES, SENT, TOPIC, COUNT), TOPIC, topic)
  55     }.memoize<String, Counter>()
  56
  57     private val droppedCount = registry.counter(name(MESSAGES, DROPPED, COUNT))
  58     private val droppedCauseCount = { cause: String ->
  59         registry.counter(name(MESSAGES, DROPPED, CAUSE, COUNT), CAUSE, cause)
  60     }.memoize<String, Counter>()
  61
  62     private val processingTime = registry.timer(name(MESSAGES, PROCESSING, TIME))
  63
  64     private val clientsRejectedCount = registry.counter(name(CLIENTS, REJECTED, COUNT))
  65     private val clientsRejectedCauseCount = { cause: String ->
  66         registry.counter(name(CLIENTS, REJECTED, CAUSE, COUNT), CAUSE, cause)
  67     }.memoize<String, Counter>()
  68
  69     init {
  70         registry.gauge(name(MESSAGES, PROCESSING, COUNT), this) {
  71             (receivedMsgCount.count() - sentCountTotal.count()).coerceAtLeast(0.0)
  72         }
  73         ClassLoaderMetrics().bindTo(registry)
  74         JvmMemoryMetrics().bindTo(registry)
  75         JvmGcMetrics().bindTo(registry)
  76         ProcessorMetrics().bindTo(registry)
  77         JvmThreadMetrics().bindTo(registry)
  78     }
  79
  80
  81     val metricsProvider = MicrometerPrometheusMetricsProvider(registry)
  82
  83     override fun notifyBytesReceived(size: Int) {
  84         receivedBytes.increment(size.toDouble())
  85     }
  86
  87     override fun notifyMessageReceived(msg: WireFrameMessage) {
  88         receivedMsgCount.increment()
  89         receivedMsgBytes.increment(msg.payloadSize.toDouble())
  90     }
  91
  92     override fun notifyMessageSent(msg: RoutedMessage) {
  93         sentCountTotal.increment()
  94         sentToTopicCount(msg.topic).increment()
  95         processingTime.record(Duration.between(msg.message.wtpFrame.receivedAt, Instant.now()))
  96     }
  97
  98     override fun notifyMessageDropped(cause: MessageDropCause) {
  99         droppedCount.increment()
 100         droppedCauseCount(cause.tag).increment()
 101     }
 102
 103     override fun notifyClientRejected(cause: ClientRejectionCause) {
 104         clientsRejectedCount.increment()
 105         clientsRejectedCauseCount(cause.tag).increment()
 106     }
 107
 108     companion object {
 109         val INSTANCE = MicrometerMetrics()
 110         internal const val PREFIX = "hvves"
 111         internal const val MESSAGES = "messages"
 112         internal const val RECEIVED = "received"
 113         internal const val BYTES = "bytes"
 114         internal const val COUNT = "count"
 115         internal const val DATA = "data"
 116         internal const val SENT = "sent"
 117         internal const val PROCESSING = "processing"
 118         internal const val CAUSE = "cause"
 119         internal const val CLIENTS = "clients"
 120         internal const val REJECTED = "rejected"
 121         internal const val TOPIC = "topic"
 122         internal const val DROPPED = "dropped"
 123         internal const val TIME = "time"
 124         fun name(vararg name: String) = "$PREFIX.${name.joinToString(".")}"
 125     }
 126 }