Package org.eclipse.jetty.server

Class CachedContentFactory

java.lang.Object

org.eclipse.jetty.server.CachedContentFactory

All Implemented Interfaces:

HttpContent.ContentFactory

public class CachedContentFactory
extends Object
implements HttpContent.ContentFactory

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	CachedContentFactory.CachedHttpContent	MetaData associated with a context Resource.
class	CachedContentFactory.CachedPrecompressedHttpContent

Constructor Summary

Constructors

Constructor	Description
CachedContentFactory(CachedContentFactory parent, ResourceFactory factory, MimeTypes mimeTypes, boolean useFileMappedBuffer, boolean etags, CompressedContentFormat[] precompressedFormats)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	flushCache()
int	getCachedFiles()
int	getCachedSize()
HttpContent	getContent(String pathInContext, int maxBufferSize)	Returns an entry from the cache, or creates a new one.
protected ByteBuffer	getDirectBuffer(Resource resource)
protected ByteBuffer	getIndirectBuffer(Resource resource)
protected ByteBuffer	getMappedBuffer(Resource resource)
int	getMaxCachedFiles()
int	getMaxCachedFileSize()
int	getMaxCacheSize()
protected boolean	isCacheable(Resource resource)
boolean	isUseFileMappedBuffer()
void	setMaxCachedFiles(int maxCachedFiles)
void	setMaxCachedFileSize(int maxCachedFileSize)
void	setMaxCacheSize(int maxCacheSize)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

CachedContentFactory

public CachedContentFactory(CachedContentFactory parent,
 ResourceFactory factory,
 MimeTypes mimeTypes,
 boolean useFileMappedBuffer,
 boolean etags,
 CompressedContentFormat[] precompressedFormats)

Constructor.

Parameters:

parent - the parent resource cache

factory - the resource factory

mimeTypes - Mimetype to use for meta data

useFileMappedBuffer - true to file memory mapped buffers

etags - true to support etags

precompressedFormats - array of precompression formats to support

Method Details

getCachedSize

public int getCachedSize()

getCachedFiles

public int getCachedFiles()

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:

the max number of cached files.

setMaxCachedFiles

public void setMaxCachedFiles(int maxCachedFiles)

Parameters:

maxCachedFiles - the max number of cached files.

isUseFileMappedBuffer

public boolean isUseFileMappedBuffer()

flushCache

public void flushCache()

getContent

public HttpContent getContent(String pathInContext,
 int maxBufferSize)
                       throws IOException

Returns an entry from the cache, or creates a new one.

Specified by:

getContent in interface HttpContent.ContentFactory

Parameters:

pathInContext - The key into the cache

maxBufferSize - The maximum buffer size allocated for this request. For cached content, a larger buffer may have previously been allocated and returned by the HttpContent.getDirectBuffer() or HttpContent.getIndirectBuffer() calls.

Returns:

The entry matching pathInContext, or a new entry if no matching entry was found. If the content exists but is not cacheable, then a ResourceHttpContent instance is returned. If the resource does not exist, then null is returned.

Throws:

IOException - if the resource cannot be retrieved

isCacheable

protected boolean isCacheable(Resource resource)

Parameters:

resource - the resource to test

Returns:

whether the resource is cacheable. The default implementation tests the cache sizes.

getIndirectBuffer

protected ByteBuffer getIndirectBuffer(Resource resource)

getMappedBuffer

protected ByteBuffer getMappedBuffer(Resource resource)

getDirectBuffer

protected ByteBuffer getDirectBuffer(Resource resource)

toString

public String toString()

Overrides:

toString in class Object