org.ametys.workspaces.repository.maintenance

Class DataStoreGarbageCollectorTask

java.lang.Object

org.ametys.workspaces.repository.maintenance.AbstractMaintenanceTask

org.ametys.workspaces.repository.maintenance.DataStoreGarbageCollectorTask

All Implemented Interfaces:

LogEnabled, MarkEventListener

public class DataStoreGarbageCollectorTask
extends AbstractMaintenanceTask
implements MarkEventListener

DataStoreGarbageCollectorTask

Field Summary

Fields

Modifier and Type	Field and Description
private GarbageCollector	_garbageCollector
private IterablePersistenceManager[]	_pmList
protected RepositoryContext	_repositoryContext The JackRabbit RepositoryImpl Context
private int	_scannedNodesCount Internal counter for scanned node by the GC
protected Session	_session The JCR Session bound to this task.
private static int	SYSTEM_GC_CALLS

Fields inherited from class org.ametys.workspaces.repository.maintenance.AbstractMaintenanceTask

_logger, _progress, _repositoryConfig, _repositoryProvider

Constructor Summary

Constructors

Constructor and Description
DataStoreGarbageCollectorTask()

Method Summary

Modifier and Type	Method and Description
private void	_derbyCompressTable(DbDataStore ds) Reclaiming unused space.
private long	_reportDataStoreInfo(DataStore ds)
protected void	apply() Apply the tasks (within the execute method()).
void	beforeScanning(Node n)
protected void	close() Close the tasks
private static Object	findAndInvokeMethod(Object obj, String name, Object[] parameters)
protected PersistenceManager	getPM(String workspaceName) Retrieves JackRabbit Persistence Manager for currently opened repository.
protected void	initialize() Initialize the tasks.
protected void	setLogger() Set the tasks logger.

Methods inherited from class org.ametys.workspaces.repository.maintenance.AbstractMaintenanceTask

_getFormattedDuration, execute, getProgressInfo, isFinished, setLogger

Methods inherited from class java.lang.Object

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

Field Detail

SYSTEM_GC_CALLS

private static final int SYSTEM_GC_CALLS

See Also:

Constant Field Values

_repositoryContext

protected RepositoryContext _repositoryContext

The JackRabbit RepositoryImpl Context

_session

protected Session _session

The JCR Session bound to this task.

_garbageCollector

private GarbageCollector _garbageCollector

_pmList

private IterablePersistenceManager[] _pmList

_scannedNodesCount

private int _scannedNodesCount

Internal counter for scanned node by the GC

Constructor Detail

DataStoreGarbageCollectorTask

public DataStoreGarbageCollectorTask()

Method Detail

initialize

protected void initialize()
                   throws RepositoryException

Description copied from class: AbstractMaintenanceTask

Initialize the tasks. This method can also create the TaskProgress object bounded to the task.

Overrides:

initialize in class AbstractMaintenanceTask

Throws:

RepositoryException - If a repository exception

setLogger

protected void setLogger()

Description copied from class: AbstractMaintenanceTask

Set the tasks logger.

Specified by:

setLogger in class AbstractMaintenanceTask

apply

protected void apply()
              throws RepositoryException

Description copied from class: AbstractMaintenanceTask

Apply the tasks (within the execute method()).

Specified by:

apply in class AbstractMaintenanceTask

Throws:

RepositoryException - If a repository exception

close

protected void close()

Description copied from class: AbstractMaintenanceTask

Close the tasks

Overrides:

close in class AbstractMaintenanceTask

_reportDataStoreInfo

private long _reportDataStoreInfo(DataStore ds)
                           throws DataStoreException

Throws:

DataStoreException

_derbyCompressTable

private void _derbyCompressTable(DbDataStore ds)
                          throws RepositoryException

Reclaiming unused space. This is derby specific. By default, Derby does not return unused space to the operating system when updating or deleting data.

Parameters:

ds - The datastore

Throws:

RepositoryException - If an error occurs with the repository

beforeScanning

public void beforeScanning(Node n)
                    throws RepositoryException

Specified by:

beforeScanning in interface MarkEventListener

Throws:

RepositoryException

getPM

protected PersistenceManager getPM(String workspaceName)
                            throws RepositoryException

Retrieves JackRabbit Persistence Manager for currently opened repository. This method uses Privileged access and will fail with security exception if used in environment with enabled security manager.

Parameters:

workspaceName - The workspace name

Returns:

Persistence manager used by repository.

Throws:

RepositoryException - If an error occurs while retrieving the persistence manager

findAndInvokeMethod

private static Object findAndInvokeMethod(Object obj,
                                          String name,
                                          Object[] parameters)
                                   throws IllegalArgumentException,
                                          IllegalAccessException,
                                          InvocationTargetException

Throws:

IllegalArgumentException

IllegalAccessException

InvocationTargetException