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package kamon.system.sigar
import kamon.metric.GenericEntityRecorder
import kamon.metric.instrument._
import org.hyperic.sigar.{ NetInterfaceStat, Sigar }
class NetworkMetrics(instrumentFactory: InstrumentFactory) extends GenericEntityRecorder(instrumentFactory) with SigarMetric {
val receivedBytes = DiffRecordingHistogram(histogram("rx-bytes", Memory.Bytes))
val transmittedBytes = DiffRecordingHistogram(histogram("tx-bytes", Memory.Bytes))
val receiveErrors = DiffRecordingHistogram(histogram("rx-errors"))
val transmitErrors = DiffRecordingHistogram(histogram("tx-errors"))
val receiveDrops = DiffRecordingHistogram(histogram("rx-dropped"))
val transmitDrops = DiffRecordingHistogram(histogram("tx-dropped"))
def sumOfAllInterfaces(sigar: Sigar, thunk: NetInterfaceStat ⇒ Long): Long = {
val interfaces = sigar.getNetInterfaceList.toList.filter(_ != "lo")
interfaces.map(i ⇒ thunk(sigar.getNetInterfaceStat(i))).fold(0L)(_ + _)
}
def update(sigar: Sigar): Unit = {
receivedBytes.record(sumOfAllInterfaces(sigar, _.getRxBytes))
transmittedBytes.record(sumOfAllInterfaces(sigar, _.getTxBytes))
receiveErrors.record(sumOfAllInterfaces(sigar, _.getRxErrors))
transmitErrors.record(sumOfAllInterfaces(sigar, _.getTxErrors))
receiveDrops.record(sumOfAllInterfaces(sigar, _.getRxDropped))
transmitDrops.record(sumOfAllInterfaces(sigar, _.getTxDropped))
}
}
object NetworkMetrics extends SigarMetricRecorderCompanion("network") {
def apply(instrumentFactory: InstrumentFactory): NetworkMetrics =
new NetworkMetrics(instrumentFactory)
}
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