Package cn.sinozg.applet.common.handler

Class ThreadPoolExecutorHandler

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

cn.sinozg.applet.common.handler.ThreadPoolExecutorHandler

All Implemented Interfaces:

Executor, ExecutorService

public class ThreadPoolExecutorHandler
extends ThreadPoolExecutor

重写线程池 打印当前的线程信息

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.ThreadPoolExecutor

ThreadPoolExecutor.AbortPolicy, ThreadPoolExecutor.CallerRunsPolicy, ThreadPoolExecutor.DiscardOldestPolicy, ThreadPoolExecutor.DiscardPolicy

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	KEEP_ALIVE_TIME	线程池维护线程所允许的空闲时间
private static final org.slf4j.Logger	log
private final String	poolName	线程池名称
private static final int	QUEUE_CAPACITY	队列最大长度

Constructor Summary

Constructors

Constructor	Description
ThreadPoolExecutorHandler(int corePoolSize, int maximumPoolSize, long keepAliveTime, @NotNull TimeUnit unit, @NotNull BlockingQueue<Runnable> workQueue, String poolName, RejectedExecutionHandler handler)	初始化线程池
ThreadPoolExecutorHandler(String poolName)	初始化线程池 核心数默认为 cpu+1 对列数为 8192 拒绝策略为抛出异常
ThreadPoolExecutorHandler(String poolName, RejectedExecutionHandler handler)	初始化线程池 核心数默认为 cpu+1 对列数为 8192

Method Summary

Modifier and Type	Method	Description
protected void	beforeExecute(Thread t, Runnable r)	打印线程池运行状态

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

afterExecute, allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, execute, finalize, getActiveCount, getCompletedTaskCount, getCorePoolSize, getKeepAliveTime, getLargestPoolSize, getMaximumPoolSize, getPoolSize, getQueue, getRejectedExecutionHandler, getTaskCount, getThreadFactory, isShutdown, isTerminated, isTerminating, prestartAllCoreThreads, prestartCoreThread, purge, remove, setCorePoolSize, setKeepAliveTime, setMaximumPoolSize, setRejectedExecutionHandler, setThreadFactory, shutdown, shutdownNow, terminated, toString

Methods inherited from class java.util.concurrent.AbstractExecutorService

invokeAll, invokeAll, invokeAny, invokeAny, newTaskFor, newTaskFor, submit, submit, submit

Methods inherited from class java.lang.Object

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

Field Details

poolName

private final String poolName

线程池名称

KEEP_ALIVE_TIME

private static final long KEEP_ALIVE_TIME

线程池维护线程所允许的空闲时间

See Also:

• Constant Field Values

QUEUE_CAPACITY

private static final int QUEUE_CAPACITY

队列最大长度

See Also:

• Constant Field Values

log

private static final org.slf4j.Logger log

Constructor Details

ThreadPoolExecutorHandler

public ThreadPoolExecutorHandler(String poolName)

初始化线程池 核心数默认为 cpu+1 对列数为 8192 拒绝策略为抛出异常

Parameters:

poolName - 线程名称

ThreadPoolExecutorHandler

public ThreadPoolExecutorHandler(String poolName,
 RejectedExecutionHandler handler)

初始化线程池 核心数默认为 cpu+1 对列数为 8192

Parameters:

poolName - 线程名称

handler - 拒绝策略

ThreadPoolExecutorHandler

public ThreadPoolExecutorHandler(int corePoolSize,
 int maximumPoolSize,
 long keepAliveTime,
 @NotNull
 @NotNull TimeUnit unit,
 @NotNull
 @NotNull BlockingQueue<Runnable> workQueue,
 String poolName,
 RejectedExecutionHandler handler)

初始化线程池

Parameters:

corePoolSize - 核心数

maximumPoolSize - 最大核心数

keepAliveTime - 空闲时间

unit - 空闲时间单位

workQueue - 对列

poolName - 线程名称

handler - 拒绝策略

Method Details

beforeExecute

protected void beforeExecute(Thread t,
 Runnable r)

打印线程池运行状态

Overrides:

beforeExecute in class ThreadPoolExecutor

Parameters:

t - the thread that will run task r

r - the task that will be executed