com.weibo.api.motan.transport.netty

类 StandardThreadExecutor

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

com.weibo.api.motan.transport.netty.StandardThreadExecutor

所有已实现的接口:

Executor, ExecutorService

public class StandardThreadExecutor
extends ThreadPoolExecutor

 
 代码和思路主要来自于：
 
 tomcat : 
                org.apache.catalina.core.StandardThreadExecutor
 
 java.util.concurrent
 threadPoolExecutor execute执行策略：                优先offer到queue，queue满后再扩充线程到maxThread，如果已经到了maxThread就reject 
                                                                比较适合于CPU密集型应用（比如runnable内部执行的操作都在JVM内部，memory copy, or compute等等）
 
 StandardThreadExecutor execute执行策略：    优先扩充线程到maxThread，再offer到queue，如果满了就reject 
                                                        比较适合于业务处理需要远程资源的场景
 
 

版本:

创建时间：2013-6-20

作者:

maijunsheng

嵌套类概要

从类继承的嵌套类/接口 java.util.concurrent.ThreadPoolExecutor

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

字段概要

字段

限定符和类型	字段和说明
static int	DEFAULT_MAX_IDLE_TIME
static int	DEFAULT_MAX_THREADS
static int	DEFAULT_MIN_THREADS
protected AtomicInteger	submittedTasksCount

构造器概要

构造器

构造器和说明
StandardThreadExecutor()
StandardThreadExecutor(int coreThread, int maxThreads)
StandardThreadExecutor(int coreThreads, int maxThreads, int queueCapacity)
StandardThreadExecutor(int coreThreads, int maxThreads, int queueCapacity, ThreadFactory threadFactory)
StandardThreadExecutor(int coreThread, int maxThreads, long keepAliveTime, TimeUnit unit)
StandardThreadExecutor(int coreThreads, int maxThreads, long keepAliveTime, TimeUnit unit, int queueCapacity)
StandardThreadExecutor(int coreThreads, int maxThreads, long keepAliveTime, TimeUnit unit, int queueCapacity, ThreadFactory threadFactory)
StandardThreadExecutor(int coreThreads, int maxThreads, long keepAliveTime, TimeUnit unit, int queueCapacity, ThreadFactory threadFactory, RejectedExecutionHandler handler)

方法概要

方法

限定符和类型	方法和说明
protected void	afterExecute(Runnable r, Throwable t)
void	execute(Runnable command)
int	getMaxSubmittedTaskCount()
int	getSubmittedTasksCount()

从类继承的方法 java.util.concurrent.ThreadPoolExecutor

allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, beforeExecute, 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

从类继承的方法 java.util.concurrent.AbstractExecutorService

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

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_MIN_THREADS

public static final int DEFAULT_MIN_THREADS

另请参阅:

常量字段值

DEFAULT_MAX_THREADS

public static final int DEFAULT_MAX_THREADS

另请参阅:

常量字段值

DEFAULT_MAX_IDLE_TIME

public static final int DEFAULT_MAX_IDLE_TIME

另请参阅:

常量字段值

submittedTasksCount

protected AtomicInteger submittedTasksCount

构造器详细资料

StandardThreadExecutor

public StandardThreadExecutor()

StandardThreadExecutor

public StandardThreadExecutor(int coreThread,
                      int maxThreads)

StandardThreadExecutor

public StandardThreadExecutor(int coreThread,
                      int maxThreads,
                      long keepAliveTime,
                      TimeUnit unit)

StandardThreadExecutor

public StandardThreadExecutor(int coreThreads,
                      int maxThreads,
                      int queueCapacity)

StandardThreadExecutor

public StandardThreadExecutor(int coreThreads,
                      int maxThreads,
                      int queueCapacity,
                      ThreadFactory threadFactory)

StandardThreadExecutor

public StandardThreadExecutor(int coreThreads,
                      int maxThreads,
                      long keepAliveTime,
                      TimeUnit unit,
                      int queueCapacity)

StandardThreadExecutor

public StandardThreadExecutor(int coreThreads,
                      int maxThreads,
                      long keepAliveTime,
                      TimeUnit unit,
                      int queueCapacity,
                      ThreadFactory threadFactory)

StandardThreadExecutor

public StandardThreadExecutor(int coreThreads,
                      int maxThreads,
                      long keepAliveTime,
                      TimeUnit unit,
                      int queueCapacity,
                      ThreadFactory threadFactory,
                      RejectedExecutionHandler handler)

方法详细资料

execute

public void execute(Runnable command)

指定者:

execute 在接口中 Executor

覆盖:

execute 在类中 ThreadPoolExecutor

getSubmittedTasksCount

public int getSubmittedTasksCount()

getMaxSubmittedTaskCount

public int getMaxSubmittedTaskCount()

afterExecute

protected void afterExecute(Runnable r,
                Throwable t)

覆盖:

afterExecute 在类中 ThreadPoolExecutor