alluxio.security.authorization

Class DefaultAccessControlList

java.lang.Object

alluxio.security.authorization.AccessControlList

alluxio.security.authorization.DefaultAccessControlList

All Implemented Interfaces:

Serializable

public class DefaultAccessControlList
extends AccessControlList

Default Access control list for a directory.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class alluxio.security.authorization.AccessControlList

AccessControlList.AccessControlListDeserializer, AccessControlList.AccessControlListSerializer

Field Summary

Fields

Modifier and Type	Field and Description
static DefaultAccessControlList	EMPTY_DEFAULT_ACL

Fields inherited from class alluxio.security.authorization.AccessControlList

EMPTY_ACL, mExtendedEntries, mMode, mOwningGroup, mOwningUser, OWNER_FIELD, OWNING_GROUP_FIELD, OWNING_GROUP_KEY, OWNING_USER_KEY, STRING_ENTRY_FIELD

Constructor Summary

Constructors

Constructor and Description
DefaultAccessControlList() Constructor to build a default ACL that is empty.
DefaultAccessControlList(AccessControlList acl) Constructor to build a default ACL based on an access ACL.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
Pair<AccessControlList,DefaultAccessControlList>	generateChildDirACL(Short umask) Creates a child directory's access ACL and default ACL based on the default ACL.
AccessControlList	generateChildFileACL(Short umask) create a child file 's accessACL based on the default ACL.
List<AclEntry>	getEntries() Returns a list of AclEntry which represent this ACL instance.
int	hashCode()
boolean	isEmpty() Returns true if the default ACL is empty.
void	removeEntry(AclEntry entry) Removes the specified entry.
void	setEmpty(boolean empty)
void	setEntry(AclEntry entry) Sets an entry into the access control list.

Methods inherited from class alluxio.security.authorization.AccessControlList

checkPermission, clearEntries, fromStringEntries, getExtendedEntries, getMode, getOtherActions, getOwningGroup, getOwningGroupActions, getOwningUser, getOwningUserActions, getPermission, hasExtended, removeExtendedEntries, setMode, setOwningGroup, setOwningUser, toString, toStringEntries, updateMask

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY_DEFAULT_ACL

public static final DefaultAccessControlList EMPTY_DEFAULT_ACL

Constructor Detail

DefaultAccessControlList

public DefaultAccessControlList()

Constructor to build a default ACL that is empty.

DefaultAccessControlList

public DefaultAccessControlList(AccessControlList acl)

Constructor to build a default ACL based on an access ACL.

Parameters:

acl - the access acl

Method Detail

generateChildFileACL

public AccessControlList generateChildFileACL(Short umask)

create a child file 's accessACL based on the default ACL.

Parameters:

umask - file's umask

Returns:

child file's access ACL

generateChildDirACL

public Pair<AccessControlList,DefaultAccessControlList> generateChildDirACL(Short umask)

Creates a child directory's access ACL and default ACL based on the default ACL.

Parameters:

umask - child's umask

Returns:

child directory's access ACL and default ACL

removeEntry

public void removeEntry(AclEntry entry)

Removes the specified entry. A base entry is not allowed to be removed.

Overrides:

removeEntry in class AccessControlList

Parameters:

entry - the entry to be removed

setEntry

public void setEntry(AclEntry entry)

Description copied from class: AccessControlList

Sets an entry into the access control list. If an entry with the same type and subject already exists, overwrites the existing entry; Otherwise, adds this new entry. After we modify entries for NAMED_GROUP, OWNING_GROUP, NAMED_USER, we need to update the mask.

Overrides:

setEntry in class AccessControlList

Parameters:

entry - the entry to be added or updated

isEmpty

public boolean isEmpty()

Returns true if the default ACL is empty.

Returns:

true if empty

setEmpty

public void setEmpty(boolean empty)

Parameters:

empty - set the DefaultAccessControlList to empty or not

getEntries

public List<AclEntry> getEntries()

Returns a list of AclEntry which represent this ACL instance. The mask will only be included if extended ACL entries exist.

Overrides:

getEntries in class AccessControlList

Returns:

an immutable list of ACL entries

equals

public boolean equals(Object o)

Overrides:

equals in class AccessControlList

hashCode

public int hashCode()

Overrides:

hashCode in class AccessControlList