eu.europeana.aas.acl.repository

Class CassandraAclRepository

java.lang.Object

eu.europeana.aas.acl.repository.CassandraAclRepository

All Implemented Interfaces:

AclRepository

public final class CassandraAclRepository
extends Object
implements AclRepository

Implementation of AclRepository using the DataStax Java Driver.

Author:

Rigas Grigoropoulos, Markus.Muhr@theeuropeanlibrary.org

Constructor Summary

Constructors

Constructor and Description
CassandraAclRepository(eu.europeana.cloud.cassandra.CassandraConnectionProvider provider, boolean initSchema) Constructs a new CassandraAclRepositoryImpl.
CassandraAclRepository(com.datastax.driver.core.Session session, String keyspace) Constructs a new CassandraAclRepositoryImpl.
CassandraAclRepository(com.datastax.driver.core.Session session, String keyspace, boolean initSchema) Constructs a new CassandraAclRepositoryImpl and optionally creates the Cassandra keyspace and schema for storing ACLs.

Method Summary

Modifier and Type	Method and Description
void	createAclsTable() Creates the schema for the table holding AclEntry representations.
void	createAoisTable() Creates the schema for the table holding AclObjectIdentity representations.
void	createChilrenTable() Creates the schema for the table holding AclObjectIdentity children.
void	deleteAcls(List<AclObjectIdentity> objectIdsToDelete) Removes all relevant records for the provided AclObjectIdentity instances.
AclObjectIdentity	findAclObjectIdentity(AclObjectIdentity objectId) Loads a fully populated AclObjectIdentity object from the database for the provided AclObjectIdentity.
List<AclObjectIdentity>	findAclObjectIdentityChildren(AclObjectIdentity objectId) Loads the AclObjectIdentity instances that use the specified parent.
Map<AclObjectIdentity,Set<AclEntry>>	findAcls(List<AclObjectIdentity> objectIdsToLookup) Loads the AclEntry instances that apply for the passed AclObjectIdentity objects.
void	saveAcl(AclObjectIdentity aoi) Saves an AclObjectIdentity record in the database.
void	updateAcl(AclObjectIdentity aoi, List<AclEntry> entries) Changes an existing AclObjectIdentity or the related AclEntry records in the database.

Methods inherited from class java.lang.Object

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

Constructor Detail

CassandraAclRepository

public CassandraAclRepository(eu.europeana.cloud.cassandra.CassandraConnectionProvider provider,
                              boolean initSchema)

Constructs a new CassandraAclRepositoryImpl.

Parameters:

provider - providing the Session to use for connectivity with Cassandra.

initSchema - whether the keyspace and schema for storing ACLs should // * be created.

CassandraAclRepository

public CassandraAclRepository(com.datastax.driver.core.Session session,
                              String keyspace)

Constructs a new CassandraAclRepositoryImpl.

Parameters:

session - the Session to use for connectivity with Cassandra.

keyspace - whether the keyspace and schema for storing ACLs should be created.

CassandraAclRepository

public CassandraAclRepository(com.datastax.driver.core.Session session,
                              String keyspace,
                              boolean initSchema)

Constructs a new CassandraAclRepositoryImpl and optionally creates the Cassandra keyspace and schema for storing ACLs.

Parameters:

session - the Session to use for connectivity with Cassandra.

keyspace - whether the keyspace and schema for storing ACLs should be created.

initSchema - whether the keyspace and schema for storing ACLs should be created.

Method Detail

findAcls

public Map<AclObjectIdentity,Set<AclEntry>> findAcls(List<AclObjectIdentity> objectIdsToLookup)

Description copied from interface: AclRepository

Loads the AclEntry instances that apply for the passed AclObjectIdentity objects. The returned map is keyed on the passed objects, with the values being sets of the applicable AclEntry instances, sorted by the order parameter. Any unknown objects will not have a map key.

Specified by:

findAcls in interface AclRepository

Parameters:

objectIdsToLookup - the objects to find AclEntry information for.

Returns:

a map with a set of AclEntry instances for each AclObjectIdentity passed as an argument.

findAclObjectIdentity

public AclObjectIdentity findAclObjectIdentity(AclObjectIdentity objectId)

Description copied from interface: AclRepository

Loads a fully populated AclObjectIdentity object from the database for the provided AclObjectIdentity. The provided object must contain 'id' and 'objectClass' information.

Specified by:

findAclObjectIdentity in interface AclRepository

Parameters:

objectId - the AclObjectIdentity to load from the database.

Returns:

a fully populated AclObjectIdentity object.

findAclObjectIdentityChildren

public List<AclObjectIdentity> findAclObjectIdentityChildren(AclObjectIdentity objectId)

Description copied from interface: AclRepository

Loads the AclObjectIdentity instances that use the specified parent.

Specified by:

findAclObjectIdentityChildren in interface AclRepository

Parameters:

objectId - the object to find children for.

Returns:

the list of children.

deleteAcls

public void deleteAcls(List<AclObjectIdentity> objectIdsToDelete)

Description copied from interface: AclRepository

Removes all relevant records for the provided AclObjectIdentity instances.

Specified by:

deleteAcls in interface AclRepository

Parameters:

objectIdsToDelete - the AclObjectIdentity instances representing the records to delete.

saveAcl

public void saveAcl(AclObjectIdentity aoi)
             throws AclAlreadyExistsException

Description copied from interface: AclRepository

Saves an AclObjectIdentity record in the database. It will have no entries.

Specified by:

saveAcl in interface AclRepository

Parameters:

aoi - the AclObjectIdentity to save.

Throws:

AclAlreadyExistsException - if the passed object identity already has a record.

updateAcl

public void updateAcl(AclObjectIdentity aoi,
                      List<AclEntry> entries)
               throws AclNotFoundException

Description copied from interface: AclRepository

Changes an existing AclObjectIdentity or the related AclEntry records in the database.

Specified by:

updateAcl in interface AclRepository

Parameters:

aoi - the AclObjectIdentity to update.

entries - the list of AclEntry objects to update.

Throws:

AclNotFoundException - if the relevant record could not be found.

createAoisTable

public void createAoisTable()

Creates the schema for the table holding AclObjectIdentity representations.

createChilrenTable

public void createChilrenTable()

Creates the schema for the table holding AclObjectIdentity children.

createAclsTable

public void createAclsTable()

Creates the schema for the table holding AclEntry representations.