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com.cloudera.impala.util.FsPermissionChecker.Permissions Class Reference
Collaboration diagram for com.cloudera.impala.util.FsPermissionChecker.Permissions:

Public Member Functions

boolean checkPermissions (FsAction action)
 
boolean canRead ()
 
boolean canWrite ()
 
boolean canReadAndWrite ()
 

Protected Member Functions

 Permissions (FileStatus fileStatus, AclStatus aclStatus)
 

Private Member Functions

boolean shouldApplyMask (AclEntry acl)
 
boolean isApplicableAcl (AclEntry e)
 
Boolean checkAcls (FsAction action)
 
List< AclEntry > getAclFromPermAndEntries (FsPermission perm, List< AclEntry > entries)
 

Private Attributes

final FileStatus fileStatus_
 
final FsPermission permissions_
 
final AclStatus aclStatus_
 
Map< AclEntryType, List
< AclEntry > > 		entriesByTypes_ = Maps.newHashMap()
 
AclEntry mask_
 

Detailed Description

Allows checking different access permissions of a file without repeatedly accessing the underlying filesystem by caching the results of a status call at construction.

Definition at line 80 of file FsPermissionChecker.java.

Constructor & Destructor Documentation

com.cloudera.impala.util.FsPermissionChecker.Permissions.Permissions ( FileStatus  fileStatus,
AclStatus  aclStatus 
)
inlineprotected

If aclStatus is null, ACL permissions are not checked.

Definition at line 90 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.ACL_TYPE_PRIORITY, com.cloudera.impala.util.FsPermissionChecker.Permissions.aclStatus_, com.cloudera.impala.util.FsPermissionChecker.Permissions.fileStatus_, com.cloudera.impala.util.FsPermissionChecker.Permissions.getAclFromPermAndEntries(), com.cloudera.impala.util.FsPermissionChecker.Permissions.isApplicableAcl(), com.cloudera.impala.util.FsPermissionChecker.Permissions.mask_, and com.cloudera.impala.util.FsPermissionChecker.Permissions.permissions_.

Member Function Documentation

boolean com.cloudera.impala.util.FsPermissionChecker.Permissions.canRead ( )
inline

Definition at line 219 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.Permissions.checkPermissions().

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.canReadAndWrite().

boolean com.cloudera.impala.util.FsPermissionChecker.Permissions.canReadAndWrite ( )
inline

Definition at line 221 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.Permissions.canRead(), and com.cloudera.impala.util.FsPermissionChecker.Permissions.canWrite().

boolean com.cloudera.impala.util.FsPermissionChecker.Permissions.canWrite ( )
inline

Definition at line 220 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.Permissions.checkPermissions().

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.canReadAndWrite().

Boolean com.cloudera.impala.util.FsPermissionChecker.Permissions.checkAcls ( FsAction  action)
inlineprivate

Returns true if ACLs allow 'action', false if they explicitly disallow 'action', and 'null' if no ACLs are available. See http://users.suse.com/~agruen/acl/linux-acls/online for more details about acl access check algorithm.

Definition at line 162 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.ACL_TYPE_PRIORITY, com.cloudera.impala.util.FsPermissionChecker.Permissions.aclStatus_, com.cloudera.impala.util.FsPermissionChecker.Permissions.entriesByTypes_, com.cloudera.impala.util.FsPermissionChecker.Permissions.mask_, and com.cloudera.impala.util.FsPermissionChecker.Permissions.shouldApplyMask().

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.checkPermissions().

boolean com.cloudera.impala.util.FsPermissionChecker.Permissions.checkPermissions ( FsAction  action)
inline

Returns true if the current user can perform the given action given these permissions.

Definition at line 200 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.Permissions.checkAcls(), com.cloudera.impala.util.FsPermissionChecker.Permissions.fileStatus_, com.cloudera.impala.util.FsPermissionChecker.groups_, and com.cloudera.impala.util.FsPermissionChecker.user_.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.canRead(), and com.cloudera.impala.util.FsPermissionChecker.Permissions.canWrite().

List<AclEntry> com.cloudera.impala.util.FsPermissionChecker.Permissions.getAclFromPermAndEntries ( FsPermission  perm,
List< AclEntry >  entries 
)
inlineprivate

Definition at line 227 of file FsPermissionChecker.java.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.Permissions().

boolean com.cloudera.impala.util.FsPermissionChecker.Permissions.isApplicableAcl ( AclEntry  e)
inlineprivate

Returns true if this ACL applies to the current user and / or group

Definition at line 134 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.Permissions.aclStatus_.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.Permissions().

boolean com.cloudera.impala.util.FsPermissionChecker.Permissions.shouldApplyMask ( AclEntry  acl)
inlineprivate

Returns true if the mask should apply. The mask ACL applies only to unnamed user ACLs (e.g. user::r-x), and all group ACLs.

Definition at line 119 of file FsPermissionChecker.java.

References com.cloudera.impala.util.FsPermissionChecker.Permissions.mask_.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.checkAcls().

Member Data Documentation

final AclStatus com.cloudera.impala.util.FsPermissionChecker.Permissions.aclStatus_
private

Definition at line 83 of file FsPermissionChecker.java.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.checkAcls(), com.cloudera.impala.util.FsPermissionChecker.Permissions.isApplicableAcl(), and com.cloudera.impala.util.FsPermissionChecker.Permissions.Permissions().

Map<AclEntryType, List<AclEntry> > com.cloudera.impala.util.FsPermissionChecker.Permissions.entriesByTypes_ = Maps.newHashMap()
private

Definition at line 84 of file FsPermissionChecker.java.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.checkAcls().

final FileStatus com.cloudera.impala.util.FsPermissionChecker.Permissions.fileStatus_
private

Definition at line 81 of file FsPermissionChecker.java.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.checkPermissions(), and com.cloudera.impala.util.FsPermissionChecker.Permissions.Permissions().

AclEntry com.cloudera.impala.util.FsPermissionChecker.Permissions.mask_
private

Definition at line 85 of file FsPermissionChecker.java.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.checkAcls(), com.cloudera.impala.util.FsPermissionChecker.Permissions.Permissions(), and com.cloudera.impala.util.FsPermissionChecker.Permissions.shouldApplyMask().

final FsPermission com.cloudera.impala.util.FsPermissionChecker.Permissions.permissions_
private

Definition at line 82 of file FsPermissionChecker.java.

Referenced by com.cloudera.impala.util.FsPermissionChecker.Permissions.Permissions().

The documentation for this class was generated from the following file: