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

   1 /*
   2  * ============LICENSE_START=======================================================
   3  * dcaegen2-collectors-veshv
   4  * ================================================================================
   5  * Copyright (C) 2018-2019 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.Timer
  25 import io.micrometer.core.instrument.binder.jvm.ClassLoaderMetrics
  26 import io.micrometer.core.instrument.binder.jvm.JvmGcMetrics
  27 import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics
  28 import io.micrometer.core.instrument.binder.jvm.JvmThreadMetrics
  29 import io.micrometer.core.instrument.binder.system.ProcessorMetrics
  30 import io.micrometer.prometheus.PrometheusConfig
  31 import io.micrometer.prometheus.PrometheusMeterRegistry
  32 import org.onap.dcae.collectors.veshv.boundary.Metrics
  33 import org.onap.dcae.collectors.veshv.domain.WireFrameMessage
  34 import org.onap.dcae.collectors.veshv.model.ClientRejectionCause
  35 import org.onap.dcae.collectors.veshv.model.MessageDropCause
  36 import org.onap.dcae.collectors.veshv.domain.RoutedMessage
  37 import org.onap.dcae.collectors.veshv.domain.VesMessage
  38 import org.onap.dcae.collectors.veshv.utils.TimeUtils.epochMicroToInstant
  39 import java.time.Duration
  40 import java.time.Instant
  41
  42
  43 /**
  44  * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
  45  * @since June 2018
  46  */
  47 class MicrometerMetrics internal constructor(
  48         private val registry: PrometheusMeterRegistry = PrometheusMeterRegistry(PrometheusConfig.DEFAULT)
  49 ) : Metrics {
  50     private val receivedBytes = registry.counter(name(DATA, RECEIVED, BYTES))
  51     private val receivedMessages = registry.counter(name(MESSAGES, RECEIVED))
  52     private val receivedMessagesPayloadBytes = registry.counter(name(MESSAGES, RECEIVED, PAYLOAD, BYTES))
  53
  54     private val totalConnections = registry.counter(name(CONNECTIONS))
  55     private val disconnections = registry.counter(name(DISCONNECTIONS))
  56
  57     private val processingTime = Timer.builder(name(MESSAGES, PROCESSING, TIME))
  58             .maximumExpectedValue(MAX_BUCKET_DURATION)
  59             .publishPercentileHistogram(true)
  60             .register(registry)
  61     private val processingTimeWithoutRouting = Timer.builder(name(MESSAGES, PROCESSING, TIME, WITHOUT, ROUTING))
  62             .maximumExpectedValue(MAX_BUCKET_DURATION)
  63             .publishPercentileHistogram(true)
  64             .register(registry)
  65     private val totalLatency = Timer.builder(name(MESSAGES, LATENCY))
  66             .maximumExpectedValue(MAX_BUCKET_DURATION)
  67             .publishPercentileHistogram(true)
  68             .register(registry)
  69
  70     private val sentMessages = registry.counter(name(MESSAGES, SENT))
  71     private val sentMessagesByTopic = { topic: String ->
  72         registry.counter(name(MESSAGES, SENT, TOPIC), TOPIC, topic)
  73     }.memoize<String, Counter>()
  74     private val droppedMessages = registry.counter(name(MESSAGES, DROPPED))
  75     private val messagesDroppedByCause = { cause: String ->
  76         registry.counter(name(MESSAGES, DROPPED, CAUSE), CAUSE, cause)
  77     }.memoize<String, Counter>()
  78     private val clientsRejected = registry.counter(name(CLIENTS, REJECTED))
  79     private val clientsRejectedByCause = { cause: String ->
  80         registry.counter(name(CLIENTS, REJECTED, CAUSE), CAUSE, cause)
  81     }.memoize<String, Counter>()
  82
  83     init {
  84
  85         registry.gauge(name(CONNECTIONS, ACTIVE), this) {
  86             (totalConnections.count() - disconnections.count()).coerceAtLeast(0.0)
  87         }
  88
  89         ClassLoaderMetrics().bindTo(registry)
  90         JvmMemoryMetrics().bindTo(registry)
  91         JvmGcMetrics().bindTo(registry)
  92         ProcessorMetrics().bindTo(registry)
  93         JvmThreadMetrics().bindTo(registry)
  94     }
  95
  96     val metricsProvider = MicrometerPrometheusMetricsProvider(registry)
  97
  98     override fun notifyBytesReceived(size: Int) {
  99         receivedBytes.increment(size.toDouble())
 100     }
 101
 102     override fun notifyMessageReadyForRouting(msg: VesMessage) {
 103         processingTimeWithoutRouting.record(Duration.between(msg.wtpFrame.receivedAt, Instant.now()))
 104     }
 105
 106     override fun notifyMessageReceived(msg: WireFrameMessage) {
 107         receivedMessages.increment()
 108         receivedMessagesPayloadBytes.increment(msg.payloadSize.toDouble())
 109     }
 110
 111     override fun notifyMessageSent(msg: RoutedMessage) {
 112         val now = Instant.now()
 113         sentMessages.increment()
 114         sentMessagesByTopic(msg.targetTopic).increment()
 115
 116         processingTime.record(Duration.between(msg.message.wtpFrame.receivedAt, now))
 117         totalLatency.record(Duration.between(epochMicroToInstant(msg.message.header.lastEpochMicrosec), now))
 118     }
 119
 120     override fun notifyMessageDropped(cause: MessageDropCause) {
 121         droppedMessages.increment()
 122         messagesDroppedByCause(cause.tag).increment()
 123     }
 124
 125     override fun notifyClientRejected(cause: ClientRejectionCause) {
 126         clientsRejected.increment()
 127         clientsRejectedByCause(cause.tag).increment()
 128     }
 129
 130     override fun notifyClientConnected() {
 131         totalConnections.increment()
 132     }
 133
 134     override fun notifyClientDisconnected() {
 135         disconnections.increment()
 136     }
 137
 138     companion object {
 139         val INSTANCE by lazy { MicrometerMetrics() }
 140         internal const val PREFIX = "hvves"
 141         internal const val MESSAGES = "messages"
 142         internal const val RECEIVED = "received"
 143         internal const val DISCONNECTIONS = "disconnections"
 144         internal const val CONNECTIONS = "connections"
 145         internal const val ACTIVE = "active"
 146         internal const val BYTES = "bytes"
 147         internal const val DATA = "data"
 148         internal const val SENT = "sent"
 149         internal const val PROCESSING = "processing"
 150         internal const val CAUSE = "cause"
 151         internal const val CLIENTS = "clients"
 152         internal const val REJECTED = "rejected"
 153         internal const val TOPIC = "topic"
 154         internal const val DROPPED = "dropped"
 155         internal const val TIME = "time"
 156         internal const val LATENCY = "latency"
 157         internal const val PAYLOAD = "payload"
 158         internal const val WITHOUT = "without"
 159         internal const val ROUTING = "routing"
 160         internal val MAX_BUCKET_DURATION = Duration.ofSeconds(300L)
 161         internal fun name(vararg name: String) = "$PREFIX.${name.joinToString(".")}"
 162     }
 163 }