us.codecraft.webmagic.thread

Class CountableThreadPool

java.lang.Object

us.codecraft.webmagic.thread.CountableThreadPool

public class CountableThreadPool
extends java.lang.Object

Thread pool for workers.

Use ExecutorService as inner implement.

New feature:

1. Block when thread pool is full to avoid poll many urls without process.

2. Count of thread alive for monitor.

Since:

0.5.0

Author:

code4crafer@gmail.com

Constructor Summary

Constructors

Constructor and Description
CountableThreadPool(int threadNum)
CountableThreadPool(int threadNum, java.util.concurrent.ExecutorService executorService)

Method Summary

Modifier and Type	Method and Description
void	execute(java.lang.Runnable runnable)
int	getThreadAlive()
int	getThreadNum()
boolean	isShutdown()
void	setExecutorService(java.util.concurrent.ExecutorService executorService)
void	shutdown()

Methods inherited from class java.lang.Object

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

Constructor Detail

CountableThreadPool

public CountableThreadPool(int threadNum)

CountableThreadPool

public CountableThreadPool(int threadNum,
                           java.util.concurrent.ExecutorService executorService)

Method Detail

setExecutorService

public void setExecutorService(java.util.concurrent.ExecutorService executorService)

getThreadAlive

public int getThreadAlive()

getThreadNum

public int getThreadNum()

execute

public void execute(java.lang.Runnable runnable)

isShutdown

public boolean isShutdown()

shutdown

public void shutdown()