won.protocol.util.linkeddata

Class CachingLinkedDataSource

java.lang.Object

won.protocol.util.linkeddata.LinkedDataSourceBase

won.protocol.util.linkeddata.CachingLinkedDataSource

All Implemented Interfaces:

org.springframework.beans.factory.InitializingBean, LinkedDataSource

@Qualifier(value="default")
public class CachingLinkedDataSource
extends LinkedDataSourceBase
implements LinkedDataSource, org.springframework.beans.factory.InitializingBean

LinkedDataSource implementation that uses an ehcache for caching.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CachingLinkedDataSource.CacheControlFlag
static class	CachingLinkedDataSource.LinkedDataCacheEntry

Field Summary

Fields inherited from class won.protocol.util.linkeddata.LinkedDataSourceBase

linkedDataRestClient, wonMessageUriResolver

Constructor Summary

Constructors

Constructor and Description
CachingLinkedDataSource()

Method Summary

Modifier and Type	Method and Description
void	addToCache(org.apache.jena.query.Dataset dataset, java.net.URI resource)
void	addToCache(org.apache.jena.query.Dataset dataset, java.net.URI resource, java.net.URI requesterWebID) Add the specified dataset under the specified resource URI to the cache, using the specified requester webID.
void	afterPropertiesSet()
void	clear()
org.apache.jena.query.Dataset	getDataForResource(java.net.URI resource) Obtains resource description of the resource identified by the given URI
org.apache.jena.query.Dataset	getDataForResource(java.net.URI resource, java.net.URI requesterWebID) Obtains resource description of the resource identified by the given URI for the requester identified by the given WebID.
void	invalidate(java.net.URI resource) Removes the element associated with the specified URI from the cache
void	invalidate(java.net.URI resource, java.net.URI requesterWebID)
boolean	isSharedCache() Is this linkedDataSource using a shared cache?
void	setCacheManager(org.springframework.cache.ehcache.EhCacheCacheManager cacheManager)
void	setCrawlerCallback(CrawlerCallback crawlerCallback)
void	setSharedCache(boolean sharedCache) Set if this linkedDataSource is/uses a shared cache.

Methods inherited from class won.protocol.util.linkeddata.LinkedDataSourceBase

getDataForResource, getDataForResource, getDataForResourceWithPropertyPath, getDataForResourceWithPropertyPath, getDataForResourceWithPropertyPath, getDatasetWithHeadersForResource, getPreviousLinkFromDatasetWithHeaders, makeDataset, setLinkedDataRestClient, setParallelRequestsThreadpool

Methods inherited from class java.lang.Object

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

Methods inherited from interface won.protocol.util.linkeddata.LinkedDataSource

getDataForResource, getDataForResource, getDataForResourceWithPropertyPath, getDataForResourceWithPropertyPath, getDataForResourceWithPropertyPath, getDatasetWithHeadersForResource

Constructor Detail

CachingLinkedDataSource

public CachingLinkedDataSource()

Method Detail

setSharedCache

public void setSharedCache(boolean sharedCache)

Set if this linkedDataSource is/uses a shared cache.

Parameters:

sharedCache -

isSharedCache

public boolean isSharedCache()

Is this linkedDataSource using a shared cache?

Returns:

invalidate

public void invalidate(java.net.URI resource)

Removes the element associated with the specified URI from the cache

Parameters:

resource -

invalidate

public void invalidate(java.net.URI resource,
                       java.net.URI requesterWebID)

clear

public void clear()

addToCache

public void addToCache(org.apache.jena.query.Dataset dataset,
                       java.net.URI resource,
                       java.net.URI requesterWebID)

Add the specified dataset under the specified resource URI to the cache, using the specified requester webID.

Parameters:

dataset -

resource -

requesterWebID - (may be null, in which case the resource is added to the global cache)

addToCache

public void addToCache(org.apache.jena.query.Dataset dataset,
                       java.net.URI resource)

getDataForResource

public org.apache.jena.query.Dataset getDataForResource(java.net.URI resource,
                                                        java.net.URI requesterWebID)

Description copied from interface: LinkedDataSource

Obtains resource description of the resource identified by the given URI for the requester identified by the given WebID. Used in case access to the resource is restricted by WebAccessControl (WebID-based access control).

Specified by:

getDataForResource in interface LinkedDataSource

Overrides:

getDataForResource in class LinkedDataSourceBase

Parameters:

resource - URI of the resource

requesterWebID - WebID of the entity requesting the resource

Returns:

resource description as Dataset, or empty Dataset if not a valid URI or not found or access not granted

getDataForResource

public org.apache.jena.query.Dataset getDataForResource(java.net.URI resource)

Description copied from interface: LinkedDataSource

Obtains resource description of the resource identified by the given URI

Specified by:

getDataForResource in interface LinkedDataSource

Overrides:

getDataForResource in class LinkedDataSourceBase

Returns:

resource description as Dataset, or empty Dataset if not a valid URI or not found

afterPropertiesSet

public void afterPropertiesSet()
                        throws java.lang.Exception

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

Throws:

java.lang.Exception

setCacheManager

public void setCacheManager(org.springframework.cache.ehcache.EhCacheCacheManager cacheManager)

setCrawlerCallback

@Autowired(required=false)
public void setCrawlerCallback(CrawlerCallback crawlerCallback)