org.mortbay.jetty
Class ResourceCache

java.lang.Object
  org.mortbay.component.AbstractLifeCycle
      org.mortbay.jetty.ResourceCache

All Implemented Interfaces:

Serializable, LifeCycle

public class ResourceCache
extends AbstractLifeCycle
implements Serializable

Author:

Greg Wilkins

See Also:

Serialized Form

Nested Class Summary

class	ResourceCache.Entry MetaData associated with a context Resource.
static interface	ResourceCache.Value

Field Summary

protected Map	_cache
protected int	_cachedFiles
protected int	_cacheSize
protected ResourceCache.Entry	_leastRecentlyUsed
private int	_maxCachedFiles
private int	_maxCachedFileSize
private int	_maxCacheSize
protected ResourceCache.Entry	_mostRecentlyUsed

Constructor Summary

ResourceCache()
Constructor.

Method Summary

void	doStart()
void	doStop() Stop the context.
void	flushCache()
int	getMaxCachedFiles()
int	getMaxCachedFileSize()
int	getMaxCacheSize()
ResourceCache.Entry	lookup(String pathInContext, ResourceFactory factory) Get a Entry from the cache.
void	setMaxCachedFiles(int maxCachedFiles)
void	setMaxCachedFileSize(int maxCachedFileSize)
void	setMaxCacheSize(int maxCacheSize)

Methods inherited from class org.mortbay.component.AbstractLifeCycle

isFailed, isRunning, isStarted, isStarting, isStopping, start, stop

Methods inherited from class java.lang.Object

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

Field Detail

_maxCachedFileSize

private int _maxCachedFileSize

_maxCachedFiles

private int _maxCachedFiles

_maxCacheSize

private int _maxCacheSize

_cache

protected transient Map _cache

_cacheSize

protected transient int _cacheSize

_cachedFiles

protected transient int _cachedFiles

_mostRecentlyUsed

protected transient ResourceCache.Entry _mostRecentlyUsed

_leastRecentlyUsed

protected transient ResourceCache.Entry _leastRecentlyUsed

Constructor Detail

ResourceCache

public ResourceCache()

Constructor.

Method Detail

getMaxCachedFileSize

public int getMaxCachedFileSize()

setMaxCachedFileSize

public void setMaxCachedFileSize(int maxCachedFileSize)

getMaxCacheSize

public int getMaxCacheSize()

setMaxCacheSize

public void setMaxCacheSize(int maxCacheSize)

getMaxCachedFiles

public int getMaxCachedFiles()

Returns:

Returns the maxCachedFiles.

setMaxCachedFiles

public void setMaxCachedFiles(int maxCachedFiles)

Parameters:

maxCachedFiles - The maxCachedFiles to set.

flushCache

public void flushCache()

lookup

public ResourceCache.Entry lookup(String pathInContext,
                                  ResourceFactory factory)

Get a Entry from the cache. Get either a valid entry object or create a new one if possible. When an non-new entry is found, the thread will wait until a non-null value is set on the entry. It is the responsibility of the thread that creates an entry to set the value.

Parameters:

pathInContext -

resource -

value - associated value

Throws:

IOException

doStart

public void doStart()
             throws Exception

Overrides:

doStart in class AbstractLifeCycle

Throws:

Exception

doStop

public void doStop()
            throws InterruptedException

Stop the context.

Overrides:

doStop in class AbstractLifeCycle

Throws:

InterruptedException