org.n52.wps.server.handler

Class RequestExecutor

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

org.n52.wps.server.handler.RequestExecutor

All Implemented Interfaces:

Executor, ExecutorService

public class RequestExecutor
extends ThreadPoolExecutor

After the client Request is accepted, it should be executed. To prevent resource-exhaustion, this ThreadPoolExecutor stores the Requests in a queue, and handles only a couple of them at a time. To tune the performance one can alter the parameters of this pool. Proper pool size estimation: N = Number of processors WT = Average waiting time of a task ST = Average service time of a task #Threads = N * (1 + WT/ST)

Author:

Timon ter Braak

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 and Description
static org.n52.wps.ServerDocument.Server	serverConfig

Constructor Summary

Constructors

Constructor and Description
RequestExecutor() Create a RequestExecutor.

Method Summary

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

afterExecute, allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, beforeExecute, 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 Detail

serverConfig

public static org.n52.wps.ServerDocument.Server serverConfig

Constructor Detail

RequestExecutor

public RequestExecutor()

Create a RequestExecutor.