1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/* ===================================================
* Copyright © 2013 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.
* ========================================================== */
package kamon.metric
import java.util.concurrent.{ ThreadPoolExecutor, ExecutorService }
import scala.concurrent.forkjoin.ForkJoinPool
import com.codahale.metrics.{ Metric, MetricFilter }
object ExecutorServiceMetricCollector extends ForkJoinPoolMetricCollector with ThreadPoolExecutorMetricCollector {
def register(fullName: String, executorService: ExecutorService) = executorService match {
case fjp: ForkJoinPool ⇒ registerForkJoinPool(fullName, fjp)
case tpe: ThreadPoolExecutor ⇒ registerThreadPoolExecutor(fullName, tpe)
case _ ⇒ // If it is a unknown Executor then just do nothing.
}
def deregister(fullName: String) = {
Metrics.registry.removeMatching(new MetricFilter {
def matches(name: String, metric: Metric): Boolean = name.startsWith(fullName)
})
}
}
trait ForkJoinPoolMetricCollector {
import GaugeGenerator._
import BasicExecutorMetricNames._
def registerForkJoinPool(fullName: String, fjp: ForkJoinPool) = {
val forkJoinPoolGauge = newNumericGaugeFor(fjp) _
val allMetrics = Map(
fullName + queueSize -> forkJoinPoolGauge(_.getQueuedTaskCount.toInt),
fullName + poolSize -> forkJoinPoolGauge(_.getPoolSize),
fullName + activeThreads -> forkJoinPoolGauge(_.getActiveThreadCount))
allMetrics.foreach { case (name, metric) ⇒ Metrics.registry.register(name, metric) }
}
}
trait ThreadPoolExecutorMetricCollector {
import GaugeGenerator._
import BasicExecutorMetricNames._
def registerThreadPoolExecutor(fullName: String, tpe: ThreadPoolExecutor) = {
val tpeGauge = newNumericGaugeFor(tpe) _
val allMetrics = Map(
fullName + queueSize -> tpeGauge(_.getQueue.size()),
fullName + poolSize -> tpeGauge(_.getPoolSize),
fullName + activeThreads -> tpeGauge(_.getActiveCount))
allMetrics.foreach { case (name, metric) ⇒ Metrics.registry.register(name, metric) }
}
}
object BasicExecutorMetricNames {
val queueSize = "queueSize"
val poolSize = "threads/poolSize"
val activeThreads = "threads/activeThreads"
}
|
