Package org.fcrepo.persistence.ocfl.impl

Class CreateVersionPersister

java.lang.Object

org.fcrepo.persistence.ocfl.impl.CreateVersionPersister

All Implemented Interfaces:

Persister

public class CreateVersionPersister
extends Object

Persister for creating a new OCFL version of a resource. The new version is not created until the session is committed.

Author:

pwinckles

Field Summary

Fields

Modifier and Type	Field	Description
protected final FedoraToOcflObjectIndex	ocflIndex

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CreateVersionPersister(FedoraToOcflObjectIndex index)

Method Summary

Modifier and Type	Method	Description
protected org.fcrepo.persistence.common.ResourceHeadersImpl	createCommonHeaders(org.fcrepo.storage.ocfl.OcflObjectSession session, org.fcrepo.kernel.api.operations.ResourceOperation operation, boolean isResourceRoot, org.fcrepo.kernel.api.identifiers.FedoraId archivalGroupId)
protected Optional<org.fcrepo.kernel.api.identifiers.FedoraId>	findArchivalGroupInAncestry(org.fcrepo.kernel.api.identifiers.FedoraId fedoraId, OcflPersistentStorageSession session)
protected FedoraOcflMapping	getMapping(org.fcrepo.kernel.api.Transaction transaction, org.fcrepo.kernel.api.identifiers.FedoraId resourceId)
boolean	handle(org.fcrepo.kernel.api.operations.ResourceOperation operation)	The method returns true if the operation can be persisted by this persister.
protected String	mapToOcflId(org.fcrepo.kernel.api.Transaction transaction, org.fcrepo.kernel.api.identifiers.FedoraId fedoraId)	Maps the Fedora ID to an OCFL ID.
void	persist(OcflPersistentStorageSession session, org.fcrepo.kernel.api.operations.ResourceOperation operation)	The persistence handling for the given operation.

Methods inherited from class java.lang.Object

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

Field Details

ocflIndex

protected final FedoraToOcflObjectIndex ocflIndex

Constructor Details

CreateVersionPersister

protected CreateVersionPersister(FedoraToOcflObjectIndex index)

Method Details

persist

public void persist(OcflPersistentStorageSession session,
 org.fcrepo.kernel.api.operations.ResourceOperation operation)
             throws org.fcrepo.persistence.api.exceptions.PersistentStorageException

Description copied from interface: Persister

The persistence handling for the given operation.

Parameters:

session - The persistent storage session

operation - The operation and associated data need to perform the operation.

Throws:

org.fcrepo.persistence.api.exceptions.PersistentStorageException - on failure

handle

public boolean handle(org.fcrepo.kernel.api.operations.ResourceOperation operation)

Description copied from interface: Persister

The method returns true if the operation can be persisted by this persister.

Specified by:

handle in interface Persister

Parameters:

operation - the operation to persist

Returns:

true or false

getMapping

protected FedoraOcflMapping getMapping(org.fcrepo.kernel.api.Transaction transaction,
 org.fcrepo.kernel.api.identifiers.FedoraId resourceId)
                                throws org.fcrepo.persistence.api.exceptions.PersistentStorageException

Parameters:

transaction - The externally generated transaction.

resourceId - The fedora resource identifier

Returns:

The associated mapping

Throws:

org.fcrepo.persistence.api.exceptions.PersistentStorageException - When no mapping is found.

findArchivalGroupInAncestry

protected Optional<org.fcrepo.kernel.api.identifiers.FedoraId> findArchivalGroupInAncestry(org.fcrepo.kernel.api.identifiers.FedoraId fedoraId,
 OcflPersistentStorageSession session)

mapToOcflId

protected String mapToOcflId(org.fcrepo.kernel.api.Transaction transaction,
 org.fcrepo.kernel.api.identifiers.FedoraId fedoraId)

Maps the Fedora ID to an OCFL ID.

Parameters:

transaction - The externally generated transaction.

fedoraId - The fedora identifier for the root OCFL object

Returns:

The OCFL ID

createCommonHeaders

protected org.fcrepo.persistence.common.ResourceHeadersImpl createCommonHeaders(org.fcrepo.storage.ocfl.OcflObjectSession session,
 org.fcrepo.kernel.api.operations.ResourceOperation operation,
 boolean isResourceRoot,
 org.fcrepo.kernel.api.identifiers.FedoraId archivalGroupId)
                                                                         throws org.fcrepo.persistence.api.exceptions.PersistentStorageException

Throws:

org.fcrepo.persistence.api.exceptions.PersistentStorageException