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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.ClientAuthModule;
/**
* This ClientAuthContext class encapsulates ClientAuthModules that are used
* to secure service requests made by a client, and to validate any responses
* received to those requests. A caller typically uses this class
* in the following manner:
*
* <ol>
* <li> Retrieve an instance of this class by using
* ClientAuthConfig.getAuthContext.
* <li> Invoke <i>secureRequest</i>.
* <br>
* ClientAuthContext implementation invokes secureRequest of one or more encapsulated
* ClientAuthModules. Modules might attach credentials to
* request (for example, a user name and password),
* and/or secure the request (for example, sign and encrypt the request).
* <li> Send request and receive response.
* <li> Invoke <i>validateResponse</i>.
* <br>
* ClientAuthContext implementation invokes validateResponse of
* one or more encapsulated
* ClientAuthModules. Modules verify or decrypt response as necessary.
* <li> Invoke <i>cleanSubject</i> method (as necessary)
* to clean up any authentication state in Subject.
* </ol>
*
* <p> A ClientAuthContext 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 ClientAuthConfig instance used to obtain the ClientAuthContext
* object.
* See <code>ClientAuthConfig.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 ClientAuthConfig
* @see ClientAuthModule
*/
public interface ClientAuthContext extends ClientAuth {
}