com.asprise.ocr

Class OcrExecutorService

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

com.asprise.ocr.OcrExecutorService

All Implemented Interfaces:

Executor, ExecutorService

public class OcrExecutorService
extends ThreadPoolExecutor

Executor service for OCR.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OcrExecutorService.OcrCallable Represents an OCR task.

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 ThreadLocal<Ocr>	threadLocalOcr

Constructor Summary

Constructors

Constructor and Description
OcrExecutorService(String lang, String speed) A service executor with thread count equal to number of CPU core available.
OcrExecutorService(String lang, String speed, int poolSize) Creates a new instance of OCR service executor

Method Summary

Modifier and Type	Method and Description
protected void	afterExecute(Runnable r, Throwable t)
protected void	beforeExecute(Thread t, Runnable r)
static int	getCpuCores() Returns number of CPU core available for the current JVM.
void	shutdown()
void	stopOcrEngines()
protected void	terminated()

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, setCorePoolSize, setKeepAliveTime, setMaximumPoolSize, setRejectedExecutionHandler, setThreadFactory, shutdownNow, 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

threadLocalOcr

public static final ThreadLocal<Ocr> threadLocalOcr

Constructor Detail

OcrExecutorService

public OcrExecutorService(String lang,
                          String speed)

A service executor with thread count equal to number of CPU core available.

Parameters:

lang - language to recognize

speed - speed settings, e.g., Ocr.SPEED_FASTEST.

OcrExecutorService

public OcrExecutorService(String lang,
                          String speed,
                          int poolSize)

Creates a new instance of OCR service executor

Parameters:

lang - language to recognize

speed - speed settings, e.g., Ocr.SPEED_FASTEST.

poolSize - number of threads to be used in this executor.

Method Detail

beforeExecute

protected void beforeExecute(Thread t,
                             Runnable r)

Overrides:

beforeExecute in class ThreadPoolExecutor

afterExecute

protected void afterExecute(Runnable r,
                            Throwable t)

Overrides:

afterExecute in class ThreadPoolExecutor

terminated

protected void terminated()

Overrides:

terminated in class ThreadPoolExecutor

shutdown

public void shutdown()

Specified by:

shutdown in interface ExecutorService

Overrides:

shutdown in class ThreadPoolExecutor

stopOcrEngines

public void stopOcrEngines()

getCpuCores

public static int getCpuCores()

Returns number of CPU core available for the current JVM. If the CPU support hyper-threading, this number will be the double of the total cores.

Returns: