org.javamoney.moneta.loader.internal

Class LoadableResource

java.lang.Object

org.javamoney.moneta.loader.internal.LoadableResource

public class LoadableResource
extends Object

This class represent a resource that automatically is reloaded, if needed.

Author:

Anatole Tresch

Constructor Summary

Constructors

Constructor and Description
LoadableResource(String resourceId, LoaderService.UpdatePolicy updatePolicy, URL fallbackLocation, URL... locations) Create a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
int	getAccessCount() Get the number of successful accesses.
URL	getCachedResource() Get the URL of the locally cached resource.
byte[]	getData() Get the resource data.
InputStream	getDataStream() Get the resource data as input stream.
URL	getFallbackResource() Return the fallback location.
long	getLastLoaded() Get the timestamp of the last succesful load.
int	getLoadCount() Get the number of active loads of this resource (InputStream).
List<URL>	getRemoteResources() Get the remote locations.
String	getResourceId() Get the resourceId.
Map<String,String>	getUpdateConfig() Access the registration config.
LoaderService.UpdatePolicy	getUpdatePolicy() Get the LoaderService.UpdatePolicy.
boolean	load() Loads the resource, first from the remote resources, if that fails from the fallback location.
boolean	loadFallback() Try to load the resource from the faööback resources.
boolean	loadRemote() Try to load the resource from the remote locations.
boolean	reset() Explcitly override the resource wih the fallback context and resets the load counter.
String	toString()
void	unload() Unloads the data.

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadableResource

public LoadableResource(String resourceId,
                LoaderService.UpdatePolicy updatePolicy,
                URL fallbackLocation,
                URL... locations)

Create a new instance.

Parameters:

resourceId - The dataId.

updatePolicy - The LoaderService.UpdatePolicy, not null.

fallbackLocation - teh fallback ULR, not null.

locations - the remote locations, not null (but may be empty!)

Method Detail

load

public boolean load()

Loads the resource, first from the remote resources, if that fails from the fallback location.

Returns:

true, if load succeeded.

getResourceId

public final String getResourceId()

Get the resourceId.

Returns:

the resourceId

getUpdatePolicy

public LoaderService.UpdatePolicy getUpdatePolicy()

Get the LoaderService.UpdatePolicy.

Returns:

the updatePolicy

getRemoteResources

public final List<URL> getRemoteResources()

Get the remote locations.

Returns:

the remote locations, maybe empty.

getFallbackResource

public final URL getFallbackResource()

Return the fallback location.

Returns:

the fallback location

getCachedResource

public final URL getCachedResource()

Get the URL of the locally cached resource.

Returns:

the cachedResource

getLoadCount

public final int getLoadCount()

Get the number of active loads of this resource (InputStream).

Returns:

the number of successful loads.

getAccessCount

public final int getAccessCount()

Get the number of successful accesses.

Returns:

the number of successful accesses.

getData

public final byte[] getData()

Get the resource data. This will trigger a full load, if the resource is not loaded, e.g. for LAZY resources.

Returns:

the data to load.

getDataStream

public InputStream getDataStream()

Get the resource data as input stream.

Returns:

the input stream.

getLastLoaded

public final long getLastLoaded()

Get the timestamp of the last succesful load.

Returns:

the lastLoaded

loadRemote

public boolean loadRemote()

Try to load the resource from the remote locations.

Returns:

true, on success.

loadFallback

public boolean loadFallback()

Try to load the resource from the faööback resources. This will override any remote data already loaded.

Returns:

true, on success.

unload

public void unload()

Unloads the data.

reset

public boolean reset()
              throws IOException

Explcitly override the resource wih the fallback context and resets the load counter.

Returns:

true on success.

Throws:

IOException

getUpdateConfig

public Map<String,String> getUpdateConfig()

Access the registration config.

Returns:

the config, not null.

toString

public String toString()

Overrides:

toString in class Object