org.pentaho.reporting.libraries.resourceloader.cache
Class CachingResourceBundleData

java.lang.Object
  org.pentaho.reporting.libraries.resourceloader.cache.CachingResourceBundleData

All Implemented Interfaces:

Serializable, ResourceBundleData, ResourceData

public class CachingResourceBundleData
extends Object
implements ResourceBundleData, Serializable

A very simple implementation which is suitable for smaller objects. The complete data is read into memory.

Author:

Thomas Morgner

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.pentaho.reporting.libraries.resourceloader.ResourceData

CONTENT_LENGTH, CONTENT_TYPE, FILENAME

Constructor Summary

CachingResourceBundleData(ResourceBundleData data)

Method Summary

static ResourceBundleData	createCached(ResourceBundleData data)
ResourceBundleData	deriveData(ResourceKey key)
ResourceManager	deriveManager(ResourceManager parent)
Object	getAttribute(String key)
ResourceBundleData	getBackend()
ResourceKey	getBundleKey()
ResourceKey	getKey()
long	getLength()
byte[]	getResource(ResourceManager caller) This is dangerous, especially if the resource is large.
int	getResource(ResourceManager caller, byte[] target, long offset, int length) Tries to read data into the given byte-array.
InputStream	getResourceAsStream(ResourceManager caller)
long	getVersion(ResourceManager caller)

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingResourceBundleData

public CachingResourceBundleData(ResourceBundleData data)

Method Detail

getResourceAsStream

public InputStream getResourceAsStream(ResourceManager caller)
                                throws ResourceLoadingException

Specified by:

getResourceAsStream in interface ResourceData

Throws:

ResourceLoadingException

getLength

public long getLength()

Specified by:

getLength in interface ResourceData

getResource

public byte[] getResource(ResourceManager caller)
                   throws ResourceLoadingException

Description copied from interface: ResourceData

This is dangerous, especially if the resource is large.

Specified by:

getResource in interface ResourceData

Returns:

Throws:

ResourceLoadingException

getResource

public int getResource(ResourceManager caller,
                       byte[] target,
                       long offset,
                       int length)
                throws ResourceLoadingException

Description copied from interface: ResourceData

Tries to read data into the given byte-array.

Specified by:

getResource in interface ResourceData

Returns:

the number of bytes read or -1 if no more data can be read.

Throws:

ResourceLoadingException

getAttribute

public Object getAttribute(String key)

Specified by:

getAttribute in interface ResourceData

getKey

public ResourceKey getKey()

Specified by:

getKey in interface ResourceData

getVersion

public long getVersion(ResourceManager caller)
                throws ResourceLoadingException

Specified by:

getVersion in interface ResourceData

Throws:

ResourceLoadingException

getBundleKey

public ResourceKey getBundleKey()

Specified by:

getBundleKey in interface ResourceBundleData

deriveData

public ResourceBundleData deriveData(ResourceKey key)
                              throws ResourceLoadingException

Specified by:

deriveData in interface ResourceBundleData

Throws:

ResourceLoadingException

deriveManager

public ResourceManager deriveManager(ResourceManager parent)
                              throws ResourceLoadingException

Specified by:

deriveManager in interface ResourceBundleData

Throws:

ResourceLoadingException

getBackend

public ResourceBundleData getBackend()

createCached

public static ResourceBundleData createCached(ResourceBundleData data)