ostore.client
Class ClientStage

java.lang.Object
  |
  +--ostore.client.ClientStage

All Implemented Interfaces:

EventHandlerIF, ProfilableIF, SingleThreadedEventHandlerIF

public class ClientStage

extends Object

implements SingleThreadedEventHandlerIF, EventHandlerIF, ProfilableIF

The ClientStage serves as the main translator between application code which speaks using the application programmer interfaces and the OceanStore system code which speaks using OceanStores internal messages. The ClientStage sits between the application and the rest of the system. All messages from the application pass through the ClientStage where they are translated into OceanStore messages and dispatched to the proper stage. Similarly, all replies from the system pass through the ClientStage where they are translated into application-level messages.

The ClientStage also performs many tasks to ease programmer burden. For example, the stage directs the client-side encryption that protects user data and performs all signature and signature verification operations needed for authentication.

Version:

$Id: ClientStage.java,v 1.102 2004/05/13 20:48:45 hweather Exp $

Author:

Patrick R. Eaton

Constructor Summary

ClientStage()

Method Summary

void	destroy()
void	handleEvent(QueueElementIF element)
void	handleEvents(QueueElementIF[] element_array)
void	init(ConfigDataIF config)
int	profileSize()

Methods inherited from class java.lang.Object

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

Constructor Detail

ClientStage

public ClientStage()

Method Detail

handleEvent

public void handleEvent(QueueElementIF element)
                 throws EventHandlerException

Specified by:

handleEvent in interface EventHandlerIF

EventHandlerException

handleEvents

public void handleEvents(QueueElementIF[] element_array)
                  throws EventHandlerException

Specified by:

handleEvents in interface EventHandlerIF

EventHandlerException

init

public void init(ConfigDataIF config)
          throws Exception

Specified by:

init in interface EventHandlerIF

Exception

destroy

public void destroy()
             throws Exception

Specified by:

destroy in interface EventHandlerIF

Exception

profileSize

public int profileSize()

Specified by:

profileSize in interface ProfilableIF