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package javax.security.auth.message.config;
import javax.security.auth.message.*;
// just for @see tag
import javax.security.auth.message.module.ServerAuthModule;
/**
* This ServerAuthContext class encapsulates ServerAuthModules that are used
* to validate service requests received from clients, and to secure any
* response returned for those requests. A caller typically uses this class
* in the following manner:
*
* <ol>
* <li> Retrieve an instance of this class via
* ServerAuthConfig.getAuthContext.
* <li> Invoke <i>validateRequest</i>.
* <br>
* ServerAuthContext implementation invokes validateRequest of
* one or more encapsulated
* ServerAuthModules. Modules validate credentials present in request
* (for example, decrypt and verify a signature).
* <li> If credentials valid and sufficient, authentication complete.
* <br>
* Perform authorization check on authenticated identity and,
* if successful, dispatch to requested service application.
* <li> Service application finished.
* <li> Invoke <i>secureResponse</i>.
* <br>
* ServerAuthContext implementation invokes secureResponse of
* one or more encapsulated
* ServerAuthModules. Modules secure response
* (sign and encrypt response, for example), and prepare response message.
* <li> Send secured response to client.
* <li> Invoke <i>cleanSubject</i> (as necessary)
* to clean up any authentication state in Subject(s).
* </ol>
*
* <p> A ServerAuthContext instance may be used concurrently by multiple
* callers.
*
* <p> Implementations of this interface are responsible for constructing
* and initializing the encapsulated modules. The initialization step
* includes passing the relevant request and response MessagePolicy objects
* to the encapsulated modules. The MessagePolicy objects are obtained
* by the ServerAuthConfig instance used to ontain the ServerAuthContext
* object.
* See <code>ServerAuthConfig.getAuthContext</code> for more information.
*
* <p> Implementations of this interface are instantiated by their associated
* configuration object such that they know which modules to invoke, in what
* order, and how results returned by preceding modules are to influence
* subsequent module invocations.
*
* <p> Calls to the inherited methods of this interface delegate to the
* corresponding methods of the encapsulated authentication modules.
*
* @version %I%, %G%
* @see ServerAuthConfig
* @see ServerAuthModule
*/
public interface ServerAuthContext extends ServerAuth {
}