com.vip.vjtools.vjkit.concurrent

Class ThreadDumpper

java.lang.Object

com.vip.vjtools.vjkit.concurrent.ThreadDumpper

public class ThreadDumpper
extends Object

由程序触发的ThreadDump，打印到日志中. 因为ThreadDump本身会造成JVM停顿，所以加上了开关和最少间隔时间的选项(默认不限制) 因为ThreadInfo的toString()最多只会打印8层的StackTrace，所以加上了最大打印层数的选项.(默认为8)

Constructor Summary

Constructors

Constructor and Description
ThreadDumpper()
ThreadDumpper(long leastIntervalMills, int maxStackLevel)

Method Summary

Methods

Modifier and Type	Method and Description
void	setLeastInterval(int leastIntervalSeconds) 打印ThreadDump的最小时间间隔，单位为秒，默认为0不限制.
void	setMaxStackLevel(int maxStackLevel) 打印StackTrace的最大深度, 默认为8.
void	threadDump(String reasonMsg) 强行打印ThreadDump，使用最轻量的采集方式，不打印锁信息
void	tryThreadDump() 符合条件则打印线程栈.
void	tryThreadDump(String reasonMsg) 符合条件则打印线程栈.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ThreadDumpper

public ThreadDumpper()

ThreadDumpper

public ThreadDumpper(long leastIntervalMills,
             int maxStackLevel)

Method Detail

tryThreadDump

public void tryThreadDump()

符合条件则打印线程栈.

tryThreadDump

public void tryThreadDump(String reasonMsg)

符合条件则打印线程栈.

Parameters:

reasonMsg - 发生ThreadDump的原因

threadDump

public void threadDump(String reasonMsg)

强行打印ThreadDump，使用最轻量的采集方式，不打印锁信息

setLeastInterval

public void setLeastInterval(int leastIntervalSeconds)

打印ThreadDump的最小时间间隔，单位为秒，默认为0不限制.

setMaxStackLevel

public void setMaxStackLevel(int maxStackLevel)

打印StackTrace的最大深度, 默认为8.