spark GraphiteSink 源码

spark GraphiteSink 代码

文件路径：/core/src/main/scala/org/apache/spark/metrics/sink/GraphiteSink.scala

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

package org.apache.spark.metrics.sink

import java.util.{Locale, Properties}
import java.util.concurrent.TimeUnit

import com.codahale.metrics.{Metric, MetricFilter, MetricRegistry}
import com.codahale.metrics.graphite.{Graphite, GraphiteReporter, GraphiteUDP}

import org.apache.spark.errors.SparkCoreErrors
import org.apache.spark.metrics.MetricsSystem

private[spark] class GraphiteSink(
    val property: Properties, val registry: MetricRegistry) extends Sink {
  val GRAPHITE_DEFAULT_PERIOD = 10
  val GRAPHITE_DEFAULT_UNIT = "SECONDS"
  val GRAPHITE_DEFAULT_PREFIX = ""

  val GRAPHITE_KEY_HOST = "host"
  val GRAPHITE_KEY_PORT = "port"
  val GRAPHITE_KEY_PERIOD = "period"
  val GRAPHITE_KEY_UNIT = "unit"
  val GRAPHITE_KEY_PREFIX = "prefix"
  val GRAPHITE_KEY_PROTOCOL = "protocol"
  val GRAPHITE_KEY_REGEX = "regex"

  def propertyToOption(prop: String): Option[String] = Option(property.getProperty(prop))

  if (!propertyToOption(GRAPHITE_KEY_HOST).isDefined) {
    throw SparkCoreErrors.graphiteSinkPropertyMissingError("host")
  }

  if (!propertyToOption(GRAPHITE_KEY_PORT).isDefined) {
    throw SparkCoreErrors.graphiteSinkPropertyMissingError("port")
  }

  val host = propertyToOption(GRAPHITE_KEY_HOST).get
  val port = propertyToOption(GRAPHITE_KEY_PORT).get.toInt

  val pollPeriod = propertyToOption(GRAPHITE_KEY_PERIOD) match {
    case Some(s) => s.toInt
    case None => GRAPHITE_DEFAULT_PERIOD
  }

  val pollUnit: TimeUnit = propertyToOption(GRAPHITE_KEY_UNIT) match {
    case Some(s) => TimeUnit.valueOf(s.toUpperCase(Locale.ROOT))
    case None => TimeUnit.valueOf(GRAPHITE_DEFAULT_UNIT)
  }

  val prefix = propertyToOption(GRAPHITE_KEY_PREFIX).getOrElse(GRAPHITE_DEFAULT_PREFIX)

  MetricsSystem.checkMinimalPollingPeriod(pollUnit, pollPeriod)

  val graphite = propertyToOption(GRAPHITE_KEY_PROTOCOL).map(_.toLowerCase(Locale.ROOT)) match {
    case Some("udp") => new GraphiteUDP(host, port)
    case Some("tcp") | None => new Graphite(host, port)
    case Some(p) => throw SparkCoreErrors.graphiteSinkInvalidProtocolError(p)
  }

  val filter = propertyToOption(GRAPHITE_KEY_REGEX) match {
    case Some(pattern) => new MetricFilter() {
      override def matches(name: String, metric: Metric): Boolean = {
        pattern.r.findFirstMatchIn(name).isDefined
      }
    }
    case None => MetricFilter.ALL
  }

  val reporter: GraphiteReporter = GraphiteReporter.forRegistry(registry)
      .convertDurationsTo(TimeUnit.MILLISECONDS)
      .convertRatesTo(TimeUnit.SECONDS)
      .prefixedWith(prefix)
      .filter(filter)
      .build(graphite)

  override def start(): Unit = {
    reporter.start(pollPeriod, pollUnit)
  }

  override def stop(): Unit = {
    reporter.stop()
  }

  override def report(): Unit = {
    reporter.report()
  }
}

相关信息

spark 源码目录

相关文章

spark ConsoleSink 源码

spark CsvSink 源码

spark JmxSink 源码

spark MetricsServlet 源码

spark PrometheusServlet 源码

spark Sink 源码

spark Slf4jSink 源码

spark StatsdReporter 源码

spark StatsdSink 源码

spark package 源码