本文整理汇总了Scala中java.lang.management.ThreadInfo类的典型用法代码示例。如果您正苦于以下问题：Scala ThreadInfo类的具体用法？Scala ThreadInfo怎么用？Scala ThreadInfo使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ThreadInfo类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Scala代码示例。
示例1: ContentionSnapshot
//设置package包名称以及导入依赖的类
package com.twitter.jvm
import java.lang.Thread.State._
import java.lang.management.{ManagementFactory, ThreadInfo}
class ContentionSnapshot {
ManagementFactory.getThreadMXBean.setThreadContentionMonitoringEnabled(true)
case class Snapshot(
blockedThreads: Seq[String],
lockOwners: Seq[String],
deadlocks: Seq[String])
private[this] object Blocked {
def unapply(t: ThreadInfo): Option[ThreadInfo] = {
t.getThreadState match {
case BLOCKED | WAITING | TIMED_WAITING => Some(t)
case _ => None
}
}
}
def snap(): Snapshot = {
val bean = ManagementFactory.getThreadMXBean
val blocked = bean.getThreadInfo(bean.getAllThreadIds, true, true)
.filter(_ != null)
.collect { case Blocked(info) => info }
val ownerIds = blocked map(_.getLockOwnerId) filter(_ != -1)
val owners = if (ownerIds.length == 0) Seq[String]() else
bean.getThreadInfo(ownerIds.toArray, true, true).map(_.toString).toSeq
val deadlockThreadIds = bean.findDeadlockedThreads()
val deadlocks = if (deadlockThreadIds == null) Array.empty[ThreadInfo] else
deadlockThreadIds.flatMap { id =>
blocked.find { threadInfo =>
threadInfo.getThreadId() == id
}
}
Snapshot(
blockedThreads = blocked.map(_.toString).toSeq,
lockOwners = owners,
deadlocks = deadlocks.map(_.toString).toSeq)
}
}