org.outerj.daisy.authentication.spi
Class CachingAuthenticationScheme

java.lang.Object
  org.outerj.daisy.authentication.spi.CachingAuthenticationScheme

All Implemented Interfaces:

AuthenticationScheme

public class CachingAuthenticationScheme
extends Object
implements AuthenticationScheme

A wrapper around an AuthenticationScheme that performs credential caching.

Constructor Summary

CachingAuthenticationScheme(AuthenticationScheme delegate, long maxCacheDuration, int maxCacheSize)

Method Summary

boolean	check(Credentials credentials)
void	clearCaches() Clear caches maintained by this authentication scheme, if any.
User	createUser(Credentials crendentials, UserManager userManager) If a user does not exist, the authentication scheme can be offered the possibility to create the user (this is defined in the configuration of the UserAuthenticator).
String	getDescription()

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingAuthenticationScheme

public CachingAuthenticationScheme(AuthenticationScheme delegate,
                                   long maxCacheDuration,
                                   int maxCacheSize)

Parameters:

maxCacheDuration - max time an entry can stay in the cache before becoming invalid, in millis

maxCacheSize - maximum size of the cache (should be large enough to handle max expected concurrent users for optimal performance)

Method Detail

getDescription

public String getDescription()

Specified by:

getDescription in interface AuthenticationScheme

clearCaches

public void clearCaches()

Description copied from interface: AuthenticationScheme

Clear caches maintained by this authentication scheme, if any.

Specified by:

clearCaches in interface AuthenticationScheme

check

public boolean check(Credentials credentials)
              throws AuthenticationException

Specified by:

check in interface AuthenticationScheme

Returns:

true if authentication successful, false otherwise

Throws:

AuthenticationException - if an error occured while authenticating

createUser

public User createUser(Credentials crendentials,
                       UserManager userManager)
                throws AuthenticationException

Description copied from interface: AuthenticationScheme

If a user does not exist, the authentication scheme can be offered the possibility to create the user (this is defined in the configuration of the UserAuthenticator). It is up to the implementation of this method to check the credentials are ok.

Specified by:

createUser in interface AuthenticationScheme

Throws:

AuthenticationException