org.apache.myfaces.resource

Class TempDirFileCacheResourceLoader

java.lang.Object

org.apache.myfaces.shared.resource.ResourceLoader

org.apache.myfaces.shared.resource.ResourceLoaderWrapper

org.apache.myfaces.resource.TempDirFileCacheResourceLoader

All Implemented Interfaces:

FacesWrapper<ResourceLoader>

public class TempDirFileCacheResourceLoader
extends ResourceLoaderWrapper

ResourceLoader that uses a temporal folder to cache resources, avoiding the problem described on MYFACES-3586 (Performance improvement in Resource loading - HIGH CPU inflating bytes in ResourceHandlerImpl.handleResourceRequest).

Author:

Leonardo Uribe

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TempDirFileCacheResourceLoader.FileProducer

Nested classes/interfaces inherited from class org.apache.myfaces.shared.resource.ResourceLoader

ResourceLoader.VersionComparator

Field Summary

Fields

Modifier and Type	Field and Description
static String	INIT_PARAM_TEMPORAL_RESOURCEHANDLER_CACHE_ENABLED If this param is set to true (default false), a temporal directory is created and all files handled by this ResourceLoader are cached there, avoiding the problem described on MYFACES-3586.
static boolean	INIT_PARAM_TEMPORAL_RESOURCEHANDLER_CACHE_ENABLED_DEFAULT
static String	TEMP_FILES_LOCK_MAP

Fields inherited from class org.apache.myfaces.shared.resource.ResourceLoader

VERSION_INVALID

Constructor Summary

Constructors

Constructor and Description
TempDirFileCacheResourceLoader(ResourceLoader delegate)

Method Summary

Modifier and Type	Method and Description
protected void	createTemporalFileVersion(FacesContext facesContext, ResourceMeta resourceMeta, File target)
protected int	getResourceBufferSize()
InputStream	getResourceInputStream(ResourceMeta resourceMeta)
InputStream	getResourceInputStream(ResourceMeta resourceMeta, Resource resource)
URL	getResourceURL(ResourceMeta resourceMeta)
ResourceLoader	getWrapped()
protected void	initialize()
static boolean	isValidCreateTemporalFiles(FacesContext facesContext)
boolean	resourceExists(ResourceMeta resourceMeta)

Methods inherited from class org.apache.myfaces.shared.resource.ResourceLoaderWrapper

createResourceMeta, getLibraryVersion, getPrefix, getResourceVersion, getVersionComparator, iterator, libraryExists, setPrefix, setVersionComparator

Methods inherited from class org.apache.myfaces.shared.resource.ResourceLoader

createResourceMeta

Methods inherited from class java.lang.Object

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

Field Detail

INIT_PARAM_TEMPORAL_RESOURCEHANDLER_CACHE_ENABLED

@JSFWebConfigParam(since="2.1.11",
                   expectedValues="true, false",
                   defaultValue="false")
public static final String INIT_PARAM_TEMPORAL_RESOURCEHANDLER_CACHE_ENABLED

If this param is set to true (default false), a temporal directory is created and all files handled by this ResourceLoader are cached there, avoiding the problem described on MYFACES-3586. (Performance improvement in Resource loading - HIGH CPU inflating bytes in ResourceHandlerImpl.handleResourceRequest).

See Also:

Constant Field Values

INIT_PARAM_TEMPORAL_RESOURCEHANDLER_CACHE_ENABLED_DEFAULT

public static final boolean INIT_PARAM_TEMPORAL_RESOURCEHANDLER_CACHE_ENABLED_DEFAULT

See Also:

Constant Field Values

TEMP_FILES_LOCK_MAP

public static final String TEMP_FILES_LOCK_MAP

See Also:

Constant Field Values

Constructor Detail

TempDirFileCacheResourceLoader

public TempDirFileCacheResourceLoader(ResourceLoader delegate)

Method Detail

isValidCreateTemporalFiles

public static boolean isValidCreateTemporalFiles(FacesContext facesContext)

initialize

protected void initialize()

getResourceURL

public URL getResourceURL(ResourceMeta resourceMeta)

Overrides:

getResourceURL in class ResourceLoaderWrapper

getResourceInputStream

public InputStream getResourceInputStream(ResourceMeta resourceMeta,
                                          Resource resource)

getResourceInputStream

public InputStream getResourceInputStream(ResourceMeta resourceMeta)

Overrides:

getResourceInputStream in class ResourceLoaderWrapper

resourceExists

public boolean resourceExists(ResourceMeta resourceMeta)

Overrides:

resourceExists in class ResourceLoaderWrapper

createTemporalFileVersion

protected void createTemporalFileVersion(FacesContext facesContext,
                                         ResourceMeta resourceMeta,
                                         File target)

getResourceBufferSize

protected int getResourceBufferSize()

getWrapped

public ResourceLoader getWrapped()