org.apache.ambari.server.controller.internal

Class AppCookieManager

java.lang.Object

org.apache.ambari.server.controller.internal.AppCookieManager

public class AppCookieManager
extends Object

Handles SPNego authentication as a client of hadoop service, caches hadoop.auth cookie returned by hadoop service on successful SPNego authentication. Refreshes hadoop.auth cookie on demand if the cookie has expired.

Constructor Summary

Constructors

Constructor and Description
AppCookieManager()

Method Summary

Modifier and Type	Method and Description
String	getAppCookie(String endpoint, boolean refresh) Returns hadoop.auth cookie, doing needed SPNego authentication
String	getCachedAppCookie(String endpoint) Returns the cached app cookie
static void	main(String[] args) Utility method to exercise AppCookieManager directly

Methods inherited from class java.lang.Object

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

Constructor Detail

AppCookieManager

public AppCookieManager()

Method Detail

main

public static void main(String[] args)
                 throws IOException

Utility method to exercise AppCookieManager directly

Parameters:

args - element 0 of args should be a URL to hadoop service protected by SPengo

Throws:

IOException - in case of errors

getAppCookie

public String getAppCookie(String endpoint,
                           boolean refresh)
                    throws IOException

Returns hadoop.auth cookie, doing needed SPNego authentication

Parameters:

endpoint - the URL of the Hadoop service

refresh - flag indicating wehther to refresh the cookie, if true, we do a new SPNego authentication and refresh the cookie even if the cookie already exists in local cache

Returns:

hadoop.auth cookie value

Throws:

IOException - in case of problem getting hadoop.auth cookie

getCachedAppCookie

public String getCachedAppCookie(String endpoint)

Returns the cached app cookie

Parameters:

endpoint - the hadoop end point we authenticate to

Returns:

the cached app cookie, can be null