org.apache.hadoop.security.authorize

类 AccessControlList

java.lang.Object

org.apache.hadoop.security.authorize.AccessControlList

所有已实现的接口:

Writable

public class AccessControlList
extends Object
implements Writable

Class representing a configured access control list.

字段概要

字段

限定符和类型	字段和说明
static String	WILDCARD_ACL_VALUE

构造器概要

构造器

构造器和说明
AccessControlList() This constructor exists primarily for AccessControlList to be Writable.
AccessControlList(String aclString) Construct a new ACL from a String representation of the same.

方法概要

方法

限定符和类型	方法和说明
void	addUser(String user)
String	getACLString() Returns the String representation of this ACL.
boolean	isAllAllowed()
boolean	isUserAllowed(UserGroupInformation ugi)
void	readFields(DataInput in) Deserialize the fields of this object from in.
String	toString()
void	write(DataOutput out) Serialize the fields of this object to out.

从类继承的方法 java.lang.Object

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

字段详细资料

WILDCARD_ACL_VALUE

public static final String WILDCARD_ACL_VALUE

另请参阅:

常量字段值

构造器详细资料

AccessControlList

public AccessControlList()

This constructor exists primarily for AccessControlList to be Writable.

AccessControlList

public AccessControlList(String aclString)

Construct a new ACL from a String representation of the same. The String is a a comma separated list of users and groups. The user list comes first and is separated by a space followed by the group list. For e.g. "user1,user2 group1,group2"

参数:

aclString - String representation of the ACL

方法详细资料

isAllAllowed

public boolean isAllAllowed()

addUser

public void addUser(String user)

isUserAllowed

public boolean isUserAllowed(UserGroupInformation ugi)

toString

public String toString()

覆盖:

toString 在类中 Object

write

public void write(DataOutput out)
           throws IOException

从接口复制的说明: Writable

Serialize the fields of this object to out.

指定者:

write 在接口中 Writable

参数:

out - DataOuput to serialize this object into.

抛出:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

从接口复制的说明: Writable

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

指定者:

readFields 在接口中 Writable

参数:

in - DataInput to deseriablize this object from.

抛出:

IOException

getACLString

public String getACLString()

Returns the String representation of this ACL. Unlike toString() method's return value, this String can be directly given to the constructor of AccessControlList to build AccessControlList object. This is the method used by the serialization method write().