Class CacheIndexHolder

java.lang.Object

net.adoptopenjdk.icedteaweb.resources.cache.CacheIndexHolder

class CacheIndexHolder
extends Object

Holder of the cached LeastRecentlyUsedCacheIndex data. The responsibility of this class is to make sure that access to the content of the LeastRecentlyUsedCacheIndex is synchronized and any changes are written back to the file system.

Field Summary

Fields

Modifier and Type	Field	Description
private CacheIndexFile	cachedCacheFile
private static final Logger	LOG
private final InfrastructureFileDescriptor	recentlyUsed

Constructor Summary

Constructors

Constructor	Description
CacheIndexHolder(InfrastructureFileDescriptor recentlyUsed)

Method Summary

Modifier and Type	Method	Description
private String	convertOldId(String id)
private CacheIndexFile	getCacheFile()
(package private) <T> T	getSynchronized(Function<CacheIndex, T> action)	Executes the function passed in action in a synchronized fashion to allow exclusive access to the index.
private CacheIndex	load(CacheIndexFile cacheFile)	Loads the data from the properties file into an index.
private CacheIndexFile	loadOldIndex()
private CacheIndexFile	lockCacheFile()	Lock the properties file to have exclusive access.
private void	persistChanges(CacheIndexFile cacheFile)	Write file to disk.
(package private) void	runSynchronized(Consumer<CacheIndex> action)	Executes the code passed in action in a synchronized fashion to allow exclusive access to the index.
private void	unlockCacheFile(CacheIndexFile cacheFile)	Unlock the properties file.

Methods inherited from class Object

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

Field Details

LOG

private static final Logger LOG

recentlyUsed

private final InfrastructureFileDescriptor recentlyUsed

cachedCacheFile

private CacheIndexFile cachedCacheFile

Constructor Details

CacheIndexHolder

CacheIndexHolder(InfrastructureFileDescriptor recentlyUsed)

Method Details

runSynchronized

void runSynchronized(Consumer<CacheIndex> action)

Executes the code passed in action in a synchronized fashion to allow exclusive access to the index.

getSynchronized

<T> T getSynchronized(Function<CacheIndex, T> action)

Executes the function passed in action in a synchronized fashion to allow exclusive access to the index.

Returns:

the result of the passed function.

lockCacheFile

private CacheIndexFile lockCacheFile()

Lock the properties file to have exclusive access.

unlockCacheFile

private void unlockCacheFile(CacheIndexFile cacheFile)

Unlock the properties file.

load

private CacheIndex load(CacheIndexFile cacheFile)

Loads the data from the properties file into an index.

persistChanges

private void persistChanges(CacheIndexFile cacheFile)

Write file to disk.

getCacheFile

private CacheIndexFile getCacheFile()

Returns:

the recentlyUsedPropertiesFile

loadOldIndex

private CacheIndexFile loadOldIndex()

convertOldId

private String convertOldId(String id)