Package alluxio.underfs.hdfs

Interface HdfsAclProvider

All Known Implementing Classes:

NoopHdfsAclProvider, SupportedHdfsAclProvider

public interface HdfsAclProvider

Interface for providing HDFS ACLs.

Method Summary

Modifier and Type	Method	Description
alluxio.collections.Pair<alluxio.security.authorization.AccessControlList,alluxio.security.authorization.DefaultAccessControlList>	getAcl(org.apache.hadoop.fs.FileSystem hdfs, java.lang.String path)	Returns the AccessControlList from an hdfs path.
void	setAclEntries(org.apache.hadoop.fs.FileSystem hdfs, java.lang.String path, java.util.List<alluxio.security.authorization.AclEntry> aclEntries)	Sets the ACL and default ACL for an hdfs path using ACL entries.

Method Detail

getAcl

@Nullable
alluxio.collections.Pair<alluxio.security.authorization.AccessControlList,alluxio.security.authorization.DefaultAccessControlList> getAcl(org.apache.hadoop.fs.FileSystem hdfs,
                                                                                                                                                java.lang.String path)
                                                                                                                                         throws java.io.IOException

Returns the AccessControlList from an hdfs path.

Parameters:

hdfs - the HDFS client

path - the path to retrieve the ACL for

Returns:

a Pair object containing the AccessControlList representation and the DefaultAccessControlList representation or null if ACL is unsupported/disabled

Throws:

java.io.IOException - if ACL is supported but cannot be retrieved

setAclEntries

void setAclEntries(org.apache.hadoop.fs.FileSystem hdfs,
                   java.lang.String path,
                   java.util.List<alluxio.security.authorization.AclEntry> aclEntries)
            throws java.io.IOException

Sets the ACL and default ACL for an hdfs path using ACL entries.

Parameters:

hdfs - the HDFS client

path - the path to set the ACL entries for

aclEntries - list of AclEntries, could be a representation of AccessControlList or DefaultAccessControlList

Throws:

java.io.IOException - if ACL can not be set