Package org.alfresco.repo.content

Class ContentServiceImpl

java.lang.Object

org.alfresco.repo.content.ContentTransformServiceAdaptor

org.alfresco.repo.content.ContentServiceImpl

All Implemented Interfaces:

ContentService, ContentTransformService, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

Direct Known Subclasses:

RoutingContentService

public class ContentServiceImpl
extends ContentTransformServiceAdaptor
implements ContentService, org.springframework.context.ApplicationContextAware

Service implementation acting as a level of indirection between the client and the underlying content store.

Note: This class was formerly the RoutingContentService but the 'routing' functionality has been pushed into the store implementations.

Since:

3.2

Author:

Derek Hulley

Constructor Summary

Constructors

Constructor	Description
ContentServiceImpl()

Method Summary

Modifier and Type	Method	Description
ContentReader	getRawReader(String contentUrl)	Fetch content from the low-level stores using a content URL.
ContentReader	getReader(NodeRef nodeRef, QName propertyQName)	Gets a reader for the content associated with the given node property.
long	getStoreFreeSpace()	Gets the remaing available space in the underlying content store.
long	getStoreTotalSpace()	Gets the total space of the underlying content store (not exclusively Alfresco-controlled binaries).
ContentWriter	getTempWriter()	Gets a writer to a temporary location.
ContentWriter	getWriter(NodeRef nodeRef, QName propertyQName, boolean update)	Get a content writer for the given node property, choosing to optionally have the node property updated automatically when the content stream closes.
void	init()	Service initialise
void	onUpdateProperties(NodeRef nodeRef, Map<QName,Serializable> before, Map<QName,Serializable> after)	Update properties policy behaviour
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
void	setDictionaryService(DictionaryService dictionaryService)
void	setEagerContentStoreCleaner(EagerContentStoreCleaner eagerContentStoreCleaner)
void	setIgnoreEmptyContent(boolean ignoreEmptyContent)	Deprecated. The transformations code is being moved out of the codebase and replaced by the new async RenditionService2 or other external libraries.
void	setMimetypeService(MimetypeService mimetypeService)
void	setNodeService(NodeService nodeService)
void	setPolicyComponent(PolicyComponent policyComponent)
void	setRetryingTransactionHelper(RetryingTransactionHelper helper)
void	setStore(ContentStore store)

Methods inherited from class org.alfresco.repo.content.ContentTransformServiceAdaptor

getActiveTransformers, getActiveTransformers, getImageTransformer, getMaxSourceSizeBytes, getTransformer, getTransformer, getTransformer, getTransformers, isTransformable, isTransformable, setConverter, setImageMagickContentTransformer, setLegacySynchronousTransformClient, setLocalTransformServiceRegistry, setLocalTransformServiceRegistryImpl, setSynchronousTransformClient, transform, transform, transform

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.alfresco.service.cmr.repository.ContentTransformService

getActiveTransformers, getActiveTransformers, getImageTransformer, getMaxSourceSizeBytes, getTransformer, getTransformer, getTransformer, getTransformers, isTransformable, isTransformable, transform, transform, transform

Constructor Detail

ContentServiceImpl

public ContentServiceImpl()

Method Detail

setRetryingTransactionHelper

public void setRetryingTransactionHelper(RetryingTransactionHelper helper)

setDictionaryService

public void setDictionaryService(DictionaryService dictionaryService)

setNodeService

public void setNodeService(NodeService nodeService)

setMimetypeService

public void setMimetypeService(MimetypeService mimetypeService)

setEagerContentStoreCleaner

public void setEagerContentStoreCleaner(EagerContentStoreCleaner eagerContentStoreCleaner)

setStore

public void setStore(ContentStore store)

setPolicyComponent

public void setPolicyComponent(PolicyComponent policyComponent)

setIgnoreEmptyContent

public void setIgnoreEmptyContent(boolean ignoreEmptyContent)

Deprecated.

The transformations code is being moved out of the codebase and replaced by the new async RenditionService2 or other external libraries.

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

init

public void init()

Service initialise

onUpdateProperties

public void onUpdateProperties(NodeRef nodeRef,
                               Map<QName,Serializable> before,
                               Map<QName,Serializable> after)

Update properties policy behaviour

Parameters:

nodeRef - the node reference

before - the before values of the properties

after - the after values of the properties

getStoreFreeSpace

public long getStoreFreeSpace()

Description copied from interface: ContentService

Gets the remaing available space in the underlying content store.

Specified by:

getStoreFreeSpace in interface ContentService

Returns:

Returns the total, possibly approximate, remaining space (in bytes) available to store content or -1 if no size data is available.

getStoreTotalSpace

public long getStoreTotalSpace()

Description copied from interface: ContentService

Gets the total space of the underlying content store (not exclusively Alfresco-controlled binaries).

Specified by:

getStoreTotalSpace in interface ContentService

Returns:

Returns the total, possibly approximate, size (in bytes) of of the store or -1 if no size data is available.

getRawReader

public ContentReader getRawReader(String contentUrl)

Fetch content from the low-level stores using a content URL. None of the metadata associated with the content will be populated. This method should be used only to stream the binary data out when no other metadata is required.

null is never returned, but the reader should always be checked for existence.

Specified by:

getRawReader in interface ContentService

Parameters:

contentUrl - a content store URL

Returns:

Returns a reader for the URL that needs to be checked.

getReader

public ContentReader getReader(NodeRef nodeRef,
                               QName propertyQName)

Description copied from interface: ContentService

Gets a reader for the content associated with the given node property.

If a content URL is present for the given node then a reader must be returned. The exists method should then be used to detect 'missing' content.

Specified by:

getReader in interface ContentService

Parameters:

nodeRef - a reference to a node having a content property

propertyQName - the name of the property, which must be of type content

Returns:

Returns a reader for the content associated with the node property, or null if no content has been written for the property

See Also:

FileContentReader.getSafeContentReader(ContentReader, String, Object[])

getWriter

public ContentWriter getWriter(NodeRef nodeRef,
                               QName propertyQName,
                               boolean update)

Description copied from interface: ContentService

Get a content writer for the given node property, choosing to optionally have the node property updated automatically when the content stream closes.

If the update flag is off, then the state of the node property will remain unchanged regardless of the state of the written binary data. If the flag is on, then the node property will be updated on the same thread as the code that closed the write channel.

If no node is supplied, then the writer will provide a stream into the backing content store, but will not be associated with any new or previous content.

NOTE: The content URL provided will be registered for automatic cleanup in the event that the transaction, in which this method was called, rolls back. If the transaction is successful, the writer may still be open and available for use but the underlying binary will not be cleaned up subsequently. The recommended pattern is to group calls to retrieve the writer in the same transaction as the calls to subsequently update and close the write stream - including setting of the related content properties.

Specified by:

getWriter in interface ContentService

Parameters:

nodeRef - a reference to a node having a content property, or null to just get a valid writer into a backing content store.

propertyQName - the name of the property, which must be of type content

update - true if the property must be updated atomically when the content write stream is closed (attaches a listener to the stream); false if the client code will perform the updates itself.

Returns:

Returns a writer for the content associated with the node property

getTempWriter

public ContentWriter getTempWriter()

Description copied from interface: ContentService

Gets a writer to a temporary location. The longevity of the stored temporary content is determined by the system.

Specified by:

getTempWriter in interface ContentService

Returns:

Returns a writer to an anonymous location