org.apache.hadoop.security.authentication.client

类 PseudoAuthenticator

java.lang.Object

org.apache.hadoop.security.authentication.client.PseudoAuthenticator

所有已实现的接口:

Authenticator

public class PseudoAuthenticator
extends Object
implements Authenticator

The PseudoAuthenticator implementation provides an authentication equivalent to Hadoop's Simple authentication, it trusts the value of the 'user.name' Java System property.

The 'user.name' value is propagated using an additional query string parameter USER_NAME ('user.name').

字段概要

字段

限定符和类型	字段和说明
static String	USER_NAME Name of the additional parameter that carries the 'user.name' value.

构造器概要

构造器

构造器和说明
PseudoAuthenticator()

方法概要

方法

限定符和类型	方法和说明
void	authenticate(URL url, AuthenticatedURL.Token token) Performs simple authentication against the specified URL.
protected String	getUserName() Returns the current user name.

从类继承的方法 java.lang.Object

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

字段详细资料

USER_NAME

public static final String USER_NAME

Name of the additional parameter that carries the 'user.name' value.

另请参阅:

常量字段值

构造器详细资料

PseudoAuthenticator

public PseudoAuthenticator()

方法详细资料

authenticate

public void authenticate(URL url,
                AuthenticatedURL.Token token)
                  throws IOException,
                         AuthenticationException

Performs simple authentication against the specified URL.

If a token is given it does a NOP and returns the given token.

If no token is given, it will perform an HTTP OPTIONS request injecting an additional parameter USER_NAME in the query string with the value returned by the getUserName() method.

If the response is successful it will update the authentication token.

指定者:

authenticate 在接口中 Authenticator

参数:

url - the URl to authenticate against.

token - the authencation token being used for the user.

抛出:

IOException - if an IO error occurred.

AuthenticationException - if an authentication error occurred.

getUserName

protected String getUserName()

Returns the current user name.

This implementation returns the value of the Java system property 'user.name'

返回:

the current user name.