org.aksw.gerbil.dataset.check.impl

Class FileBasedCachingEntityCheckerManager

java.lang.Object

org.aksw.gerbil.dataset.check.impl.EntityCheckerManagerImpl

org.aksw.gerbil.dataset.check.impl.FileBasedCachingEntityCheckerManager

All Implemented Interfaces:

EntityCheckerManager

public class FileBasedCachingEntityCheckerManager
extends EntityCheckerManagerImpl

This class is an extension of the EntityCheckerManagerImpl that caches the results using a persistent file-based cache. Note that the cache stores the time stamp at which a URI is added to the cache. Cache entries have a maximal lifetime. If it is exceeded, the entries might be deleted from the cache.

Internally the result of the checking is stored using the lowest bit of the timestamp.

Author:

Michael Röder (roeder@informatik.uni-leipzig.de)

Field Summary

Fields

Modifier and Type	Field and Description
protected com.carrotsearch.hppc.ObjectLongOpenHashMap<String>	cache
protected File	cacheFile
protected File	tempCacheFile

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FileBasedCachingEntityCheckerManager(com.carrotsearch.hppc.ObjectLongOpenHashMap<String> cache, long cacheEntryLifetime, File cacheFile, File tempCacheFile)

Method Summary

Modifier and Type	Method and Description
boolean	checkUri(String uri)
static FileBasedCachingEntityCheckerManager	create(long cacheEntryLifetime, File cacheFile)
protected boolean	performCheck(String uri)
static com.carrotsearch.hppc.ObjectLongOpenHashMap<String>	readCacheFile(File cacheFile)
void	storeCache()

Methods inherited from class org.aksw.gerbil.dataset.check.impl.EntityCheckerManagerImpl

checkMarkings, checkMeaning, checkMeanings, generateNewUri, registerEntityChecker

Methods inherited from class java.lang.Object

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

Field Detail

cache

protected com.carrotsearch.hppc.ObjectLongOpenHashMap<String> cache

cacheFile

protected File cacheFile

tempCacheFile

protected File tempCacheFile

Constructor Detail

FileBasedCachingEntityCheckerManager

protected FileBasedCachingEntityCheckerManager(com.carrotsearch.hppc.ObjectLongOpenHashMap<String> cache,
                                               long cacheEntryLifetime,
                                               File cacheFile,
                                               File tempCacheFile)

Method Detail

create

public static FileBasedCachingEntityCheckerManager create(long cacheEntryLifetime,
                                                          File cacheFile)

readCacheFile

public static com.carrotsearch.hppc.ObjectLongOpenHashMap<String> readCacheFile(File cacheFile)

checkUri

public boolean checkUri(String uri)

Overrides:

checkUri in class EntityCheckerManagerImpl

performCheck

protected boolean performCheck(String uri)

storeCache

public void storeCache()