com.atlassian.confluence.security
Class CachingSpacePermissionManager

java.lang.Object
  com.atlassian.confluence.security.AbstractSpacePermissionManager
      com.atlassian.confluence.security.DefaultSpacePermissionManager
          com.atlassian.confluence.security.CachingSpacePermissionManager

All Implemented Interfaces:

SpacePermissionManager

public class CachingSpacePermissionManager
extends DefaultSpacePermissionManager

Implementation of SpacePermissionManager that implements caching before a SpacePermission is requested, saved or removed from the SpacePermissionDao. This is designed to increase performance and reduce the amount of hits on the database.

Field Summary

static String

CACHE_KEY

Fields inherited from class com.atlassian.confluence.security.AbstractSpacePermissionManager

spacePermissionDao

Constructor Summary

CachingSpacePermissionManager()

Method Summary

protected boolean	canUseConfluence(User remoteUser, String permissionCheck)
void	flushCaches()
boolean	hasPermission(String permissionType, Space space, User remoteUser) Determines if remoteUser has the given permission in space
boolean	isLookAheadEnabled()
boolean	permissionExists(SpacePermission permission) Looks up permission in the cache instance.
void	removeAllPermissions(Space space) Removes all permissions belonging to space
protected void	removePermissionFromDao(SpacePermission realPermission) Removes realPermission from the DAO.
protected void	savePermissionToDao(SpacePermission permission) Saves permission to the DAO.
void	setCacheFactory(com.atlassian.cache.CacheFactory cacheFactory)
void	setLookAheadEnabled(boolean lookAheadEnabled)

Methods inherited from class com.atlassian.confluence.security.DefaultSpacePermissionManager

createInitialSpacePermissions, getAllPermissionsForGroup, getAllPermissionsForUser, getGlobalPermissions, getGlobalPermissions, getGroupsForPermissionType, getGroupsWithPermissions, getUsersForPermissionType, getUsersWithPermissions, groupHasPermission, hasPermission, removeAllPermissionsForGroup, removeAllUserPermissions, removePermission, removePermissions, savePermission

Methods inherited from class com.atlassian.confluence.security.AbstractSpacePermissionManager

fixPermissions, getUserAccessor, hasPermissionForSpace, setSpacePermissionDao, setUserAccessor

Methods inherited from class java.lang.Object

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

Field Detail

CACHE_KEY

public static final String CACHE_KEY

Constructor Detail

CachingSpacePermissionManager

public CachingSpacePermissionManager()

Method Detail

permissionExists

public boolean permissionExists(SpacePermission permission)

Looks up permission in the cache instance. If it is not found, then it is looked up by the DAO and the result (true or false) is also recorded.

If permission belongs to a space, it is looked up in the Space's own permissions list.

In addition, when lookAheadEnabled is true, #doLookAheadCache will be called and the results cached, provided permission does not belong to a space.

Specified by:

permissionExists in interface SpacePermissionManager

Overrides:

permissionExists in class DefaultSpacePermissionManager

Parameters:

permission - the SpacePermission to look up

Returns:

true if the permission exists, false otherwise

savePermissionToDao

protected void savePermissionToDao(SpacePermission permission)

Saves permission to the DAO. In addition, this method removes the permission from the cache, to prevent corruption of the cache when there is a transaction rollback (since the cache isn't transactional)

Overrides:

savePermissionToDao in class DefaultSpacePermissionManager

Parameters:

permission - the SpacePermission to save

removePermissionFromDao

protected void removePermissionFromDao(SpacePermission realPermission)

Removes realPermission from the DAO. In addition, the permission is also removed from the cache.

Overrides:

removePermissionFromDao in class DefaultSpacePermissionManager

Parameters:

realPermission - the SpacePermission to remove

removeAllPermissions

public void removeAllPermissions(Space space)

Description copied from interface: SpacePermissionManager

Removes all permissions belonging to space

Specified by:

removeAllPermissions in interface SpacePermissionManager

Overrides:

removeAllPermissions in class DefaultSpacePermissionManager

Parameters:

space - The space to remove the permissions for

setCacheFactory

public void setCacheFactory(com.atlassian.cache.CacheFactory cacheFactory)

flushCaches

public void flushCaches()

Specified by:

flushCaches in interface SpacePermissionManager

Overrides:

flushCaches in class DefaultSpacePermissionManager

isLookAheadEnabled

public boolean isLookAheadEnabled()

setLookAheadEnabled

public void setLookAheadEnabled(boolean lookAheadEnabled)

hasPermission

public boolean hasPermission(String permissionType,
                             Space space,
                             User remoteUser)

Description copied from interface: SpacePermissionManager

Determines if remoteUser has the given permission in space

Specified by:

hasPermission in interface SpacePermissionManager

Overrides:

hasPermission in class DefaultSpacePermissionManager

Parameters:

permissionType - The permission type to look up

space - The space the permission applies to (can be null for global permissions)

remoteUser - The user to look up (can be null for the anonymous user)

Returns:

true if remoteUser has the permission, false otherwise

canUseConfluence

protected boolean canUseConfluence(User remoteUser,
                                   String permissionCheck)

Overrides:

canUseConfluence in class DefaultSpacePermissionManager