org.nuxeo.ecm.core.blob.binary

Class BinaryBlobProvider

java.lang.Object

org.nuxeo.ecm.core.blob.binary.BinaryBlobProvider

All Implemented Interfaces:

BlobProvider

public class BinaryBlobProvider
extends Object
implements BlobProvider

Adapter between the BinaryManager and a BlobProvider for the BlobManager.

Can be used by legacy implementations of a BinaryManager to provide a BlobProvider implementation.

Since:

7.3

Field Summary

Fields

Modifier and Type	Field and Description
protected BinaryManager	binaryManager
protected boolean	supportsUserUpdate

Constructor Summary

Constructors

Constructor and Description
BinaryBlobProvider(BinaryManager binaryManager)

Method Summary

Modifier and Type	Method and Description
void	close() Closes the adapted BinaryManager.
BinaryManager	getBinaryManager() Gets the associated binary manager, if any.
void	initialize(String blobProviderId, Map<String,String> properties) Initializes the blob provider.
Blob	readBlob(BlobManager.BlobInfo blobInfo) Reads a Blob from storage.
boolean	supportsUserUpdate() Checks if user update is supported.
protected boolean	supportsUserUpdateDefaultTrue(Map<String,String> properties)
String	writeBlob(Blob blob, Document doc) Writes a Blob to storage and returns information about it.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nuxeo.ecm.core.blob.BlobProvider

freezeVersion, getAppLinks, getAvailableConversions, getConvertedStream, getStream, getThumbnail, getURI, isVersion, performsExternalAccessControl

Field Detail

binaryManager

protected final BinaryManager binaryManager

supportsUserUpdate

protected boolean supportsUserUpdate

Constructor Detail

BinaryBlobProvider

public BinaryBlobProvider(BinaryManager binaryManager)

Method Detail

initialize

public void initialize(String blobProviderId,
                       Map<String,String> properties)
                throws IOException

Description copied from interface: BlobProvider

Initializes the blob provider.

Specified by:

initialize in interface BlobProvider

Parameters:

blobProviderId - the blob provider id for this binary manager

properties - initialization properties

Throws:

IOException

supportsUserUpdate

public boolean supportsUserUpdate()

Description copied from interface: BlobProvider

Checks if user update is supported.

A user update refers to the fact that a blob from this provider may be overwritten with another blob, wherever the original blob may occur (usually in a document property).

Specified by:

supportsUserUpdate in interface BlobProvider

Returns:

true if user update is supported

supportsUserUpdateDefaultTrue

protected boolean supportsUserUpdateDefaultTrue(Map<String,String> properties)

close

public void close()

Closes the adapted BinaryManager.

Specified by:

close in interface BlobProvider

getBinaryManager

public BinaryManager getBinaryManager()

Description copied from interface: BlobProvider

Gets the associated binary manager, if any.

Specified by:

getBinaryManager in interface BlobProvider

Returns:

the binary manager, or null

readBlob

public Blob readBlob(BlobManager.BlobInfo blobInfo)
              throws IOException

Description copied from interface: BlobProvider

Reads a Blob from storage.

Specified by:

readBlob in interface BlobProvider

Parameters:

blobInfo - the blob information

Returns:

the blob

Throws:

IOException

writeBlob

public String writeBlob(Blob blob,
                        Document doc)
                 throws IOException

Description copied from interface: BlobProvider

Writes a Blob to storage and returns information about it.

Called to store a user-created blob.

Specified by:

writeBlob in interface BlobProvider

Parameters:

blob - the blob

doc - the document to which this blob belongs

Returns:

the blob key

Throws:

IOException