de.esprit.netsuite.server.chreq

Class RequestServiceThreadPool

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

de.esprit.netsuite.common.AbstractThreadPool

de.esprit.netsuite.server.cpu.ServerThreadPool

de.esprit.netsuite.server.chreq.RequestServiceThreadPool

All Implemented Interfaces:

Dumpable, ServerObject, java.util.concurrent.Executor, java.util.concurrent.ExecutorService

public class RequestServiceThreadPool
extends ServerThreadPool

This thread pool uses cached threads in order to forward a request to a particular RequestHandler. If the response does not appear within the request-timeout, a response with a TimeoutException is returned. This pool is limited because NOT too many requests should run in parallel. If more requests than the core-pool size want to run they are just queued. If the queue is full, more threads are started until the max-pool size is reached. Any further request will be rejected by issuing a ServerTooBusyException.

Author:

Rainer Buesch

Nested Class Summary

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

java.util.concurrent.ThreadPoolExecutor.AbortPolicy, java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy, java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy, java.util.concurrent.ThreadPoolExecutor.DiscardPolicy

Constructor Summary

Constructors

Constructor and Description
RequestServiceThreadPool(ServerContext serverCtx)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	afterExecute(java.lang.Runnable r, java.lang.Throwable t)
protected void	beforeExecute(java.lang.Thread t, java.lang.Runnable r)
protected java.util.concurrent.ThreadFactory	createThreadFactory()
NetResponse	handleRequest(RequestHandler handler, NetRequest request, NetResponse response)
void	setCorePoolSize(int poolSize) Ensure that the max-poolsize is always the same as the core-poolsize
void	setMaximumPoolSize(int poolSize) Ensure that the max-poolsize is always the same as the core-poolsize

Methods inherited from class de.esprit.netsuite.server.cpu.ServerThreadPool

getServerContext, getServerStatistic, sendErrorMail

Methods inherited from class de.esprit.netsuite.common.AbstractThreadPool

toDumpString, toDumpString, toString, toString

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

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

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

Constructor Detail

RequestServiceThreadPool

public RequestServiceThreadPool(ServerContext serverCtx)

Method Detail

setCorePoolSize

public void setCorePoolSize(int poolSize)

Ensure that the max-poolsize is always the same as the core-poolsize

Overrides:

setCorePoolSize in class java.util.concurrent.ThreadPoolExecutor

setMaximumPoolSize

public void setMaximumPoolSize(int poolSize)

Ensure that the max-poolsize is always the same as the core-poolsize

Overrides:

setMaximumPoolSize in class java.util.concurrent.ThreadPoolExecutor

handleRequest

public NetResponse handleRequest(RequestHandler handler,
                        NetRequest request,
                        NetResponse response)

afterExecute

protected void afterExecute(java.lang.Runnable r,
                java.lang.Throwable t)

Overrides:

afterExecute in class AbstractThreadPool

beforeExecute

protected void beforeExecute(java.lang.Thread t,
                 java.lang.Runnable r)

Overrides:

beforeExecute in class java.util.concurrent.ThreadPoolExecutor

createThreadFactory

protected java.util.concurrent.ThreadFactory createThreadFactory()

Specified by:

createThreadFactory in class AbstractThreadPool