org.duracloud.retrieval.source

Class DuraStoreRetrievalSource

java.lang.Object

org.duracloud.retrieval.source.DuraStoreRetrievalSource

All Implemented Interfaces:

RetrievalSource

Direct Known Subclasses:

DuraStoreStitchingRetrievalSource

public class DuraStoreRetrievalSource
extends Object
implements RetrievalSource

Field Summary

Fields

Modifier and Type	Field and Description
protected ContentStore	contentStore
protected Iterator<String>	currentContentList
protected String	currentSpaceId
protected Iterator<String>	spaceIds

Constructor Summary

Constructors

Constructor and Description
DuraStoreRetrievalSource(ContentStore store, List<String> spaces, boolean allSpaces)

Method Summary

Modifier and Type	Method and Description
protected Content	doGetContent(ContentItem contentItem, RetrievalListener listener)
ContentItem	getNextContentItem() Provides the next content item to be processed, cycles through all spaces as necessary.
protected void	getNextSpace()
String	getSourceChecksum(ContentItem contentItem) Provides the checksum of the specified source file based on the file's properties.
ContentStream	getSourceContent(ContentItem contentItem, RetrievalListener listener) Get the actual content using a retrieval listener callback.
Map<String,String>	getSourceProperties(ContentItem contentItem) Retrieves the Duracloud properties for the specified ContentItem.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.duracloud.retrieval.source.RetrievalSource

getSourceContent

Field Detail

contentStore

protected ContentStore contentStore

spaceIds

protected Iterator<String> spaceIds

currentSpaceId

protected String currentSpaceId

currentContentList

protected Iterator<String> currentContentList

Constructor Detail

DuraStoreRetrievalSource

public DuraStoreRetrievalSource(ContentStore store,
                                List<String> spaces,
                                boolean allSpaces)

Method Detail

getNextContentItem

public ContentItem getNextContentItem()

Description copied from interface: RetrievalSource

Provides the next content item to be processed, cycles through all spaces as necessary. Returns null when there are no further content ids to process.

Specified by:

getNextContentItem in interface RetrievalSource

Returns:

the next content item to be processed

getNextSpace

protected void getNextSpace()

getSourceProperties

public Map<String,String> getSourceProperties(ContentItem contentItem)

Description copied from interface: RetrievalSource

Retrieves the Duracloud properties for the specified ContentItem.

Specified by:

getSourceProperties in interface RetrievalSource

Parameters:

contentItem - the file whose properties to retrieve

Returns:

the Map of Duracloud properties

getSourceChecksum

public String getSourceChecksum(ContentItem contentItem)

Description copied from interface: RetrievalSource

Provides the checksum of the specified source file based on the file's properties.

Specified by:

getSourceChecksum in interface RetrievalSource

Parameters:

contentItem - the file to consider

Returns:

MD5 checksum of the given file

getSourceContent

public ContentStream getSourceContent(ContentItem contentItem,
                                      RetrievalListener listener)

Description copied from interface: RetrievalSource

Get the actual content using a retrieval listener callback. The listener should be called synchronously.

Specified by:

getSourceContent in interface RetrievalSource

Parameters:

contentItem - the file to retrieve

listener - of the specified operation

Returns:

doGetContent

protected Content doGetContent(ContentItem contentItem,
                               RetrievalListener listener)