Session handling

• US 7,664,860 B2
• Filed: 09/02/2003
• Issued: 02/16/2010
• Est. Priority Date: 09/02/2003
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP AG (SAP SE)
• Inventors: Beck, Stefan, Singler, Joerg, Cherdron, Markus
• Primary Examiner(s): Srivastava; Vivek
• Assistant Examiner(s): Swearingen; Jeffrey R
• Application Number:
  US10/653,407
• Publication Number:
  US 20050050204A1
• Time in Patent Office: 2,359 Days
• Field of Search: 709/219, 709/227, 709/229
• US Class Current: 709/227
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms

Abstract

A method includes, in a network, representing a first request from a first user as a first ClientUser, assigning the first ClientUser to a ServerSession, the ServerSession having one or more ClientSessions, each of the ClientSessions allowing a server to have a single session for all first user requests from the server. The method includes, in a client/server network, providing a session that can be common to all connections to a web server by a user.

Claims

1. A method for processing requests in a network having a server and a client, the method comprising:

in the network, receiving a first request from a user as a first ClientUser request;

receiving subsequent requests from the user as subsequent ClientUser requests;

assigning the first ClientUser request and subsequent ClientUser requests from the user to a ServerSession and associating the ServerSession exclusively with the user, the ServerSession having one or more ClientSessions, the ClientSessions of a ServerSession representing requests from the user associated with the ServerSession;

acquiring a resource;

determining whether either of the ServerSession and one of the ClientSessions has scone and whether the resource should be allocated to either of the ServerSession and one of the ClientSessions;

registering the acquired resource to one of;

(a) the ServerSession or (b) one of the ClientSessions based on the determinations;

releasing the resource when the scope ends; and

receiving the requests by a dispatch servlet running on the server and invoking each request as a thread in a single daemon process.

2. The method of claim 1 in which the ClientSessions represent abstractions of HTTP sessions.

3. The method of claim 1 further comprising:

receiving a second request from the first user as a second ClientUser request; and

assigning the second ClientUser request to the ServerSession.

4. The method of claim 1 in which the server is a web server.

5. The method of claim 4 in which the first ClientUser request is from a client using a stateless protocol.

6. The method of claim 5 in which the stateless protocol is hypertext transfer protocol (HTTP).

7. The method of claim 1 further comprising displaying a first application requested by the user in a ClientWindow, which is a user interface window that displays all applications requested by the user.

8. The method of claim 7 further comprising displaying a second application requested by the user in the ClientWindow.

9. The method of claim 8 further comprising displaying a third application requested by the user in the ClientWindow.

10. The method of claim 1 further comprising alternately displaying applications requested by the user in a single ClientWindow, which is a user interface window that displays all applications requested by the user.

11. The method of claim 1 further comprising releasing the acquired resource registered to the one or more ClientSessions upon termination of the one or more ClientSessions.

12. A method for processing requests in a network having a server and a client, the method comprising:

in the client server network, receiving a first request from a user for an application as a first ClientUser request;

receiving subsequent requests from the user as subsequent ClientUser requests;

assigning the first ClientUser request and subsequent ClientUser requests from the user to a ServerSession and associating the ServerSession exclusively with the user, the ServerSession having one or more ClientSessions, the ClientSessions of a ServerSession representing requests from the user associated with the ServerSession;

displaying a ClientWindow, which is a user interface window that displays all applications requested by the user;

displaying an ApplicationWindow, which is a user interface window that displays the application, within the ClientWindow;

executing the application in the ApplicationWindow of the ClientWindow;

acquiring a resource;

determining whether either of the ServerSession and one of the ClientSessions has scone and whether the resource should be allocated to either of the ServerSession and one of the ClientSessions

registering the acquired resource to one of;

(a) the ServerSession or (b) one of the ClientSessions based on the determinations; and

releasing the resource when the scone ends;

wherein receiving a request comprises receiving the request by a dispatch servlet running on the server, and invoking each request as a thread in a single daemon process.

13. The method of claim 12 in which the requests are hypertext transfer protocol (HTTP) requests.

14. The method of claim 12 in which the ClientSession is a hypertext transfer protocol (HTTP) session.

15. The method of claim 12 in which the ClientWindow represents a client session.

16. The method of claim 12 in which the ApplicationWindow is a client window.

17. The method of claim 12 further comprising releasing the acquired resource registered to the one or more ClientSessions upon termination of the one or more ClientSessions.

18. A network comprising:

a browser client device; and

a client manager residing in a server for receiving multiple hypertext transfer protocol (HTTP) requests from the browser client device, determining a single application window for execution of applications corresponding to the multiple HTTP requests, acquiring a resource, determining whether either of the ServerSession and one of the ClientSessions has scone and whether the resource should be allocated to either of the ServerSession and one of the ClientSessions, registering the acquired resource to a ServerSession or a ClientSession based on the determinations, and releasing the resource when the scone ends;

wherein the requests are received by a dispatch servlet running on the server, and each request is invoked as a thread in a single daemon process.

19. The network of claim 18 in which the client manager establishes client session, a single server session, a client window, and an application window in response to the multiple requests from the browser client device.

20. The network of claim 19 in which the client session is a hypertext transfer protocol (HTTP) session.

21. The network of claim 18 in which the client manager releases the acquired resource registered to the one or more ClientSessions upon termination of the one or more ClientSessions.

22. A computer program product, tangibly embodied in a computer-readable storage medium, the computer program product being operable to cause a data processing apparatus to:

receive a first request from a user for an application as a first ClientUser request;

receive subsequent requests from the user as subsequent ClientUser requests;

assign the first ClientUser request and subsequent ClientUser requests from the same user to a ServerSession and associate the ServerSession exclusively with the user, the ServerSession having one or more ClientSessions, the ClientSessions of a ServerSession representing distinct requests from the user associated with the ServerSession;

display a ClientWindow, which is a user interface window that displays all applications requested by the user;

display an ApplicationWindow, which is a user interface window that displays the application, within the ClientWindow;

execute the application in the ApplicationWindow of the ClientWindow,

acquire a resource;

determining whether either of the ServerSession and one of the ClientSessions has scope and whether the resource should be allocated to either of the ServerSession and one of the ClientSessions;

register the acquired resource to one of;

(a) the ServerSession or (b) one of the ClientSessions based on the determinations; and

release the resource when the scope ends;

wherein the requests are received by a dispatch servlet running on a server, and each request is invoked as a thread in a single daemon process.

23. The product of claim 22 in which the requests are hypertext transfer protocol (HTTP) requests.

24. The product of claim 22 in which the ClientSessions are hypertext transfer protocol (HTTP) sessions.

25. The product of claim 22 in which the ClientWindow represents a client session.

26. The product of claim 22 in which the ApplicationWindow is a client window.

27. The product of claim 22 further being operable to cause a data processing apparatus to release the acquired resource registered to the one or more ClientSessions upon termination of the one or more ClientSessions.

28. A method comprising:

in a client/server network, providing a session that is common to all connections to a web server by a user;

acquiring a resource;

determining whether either of the ServerSession and one of the ClientSessions has scone and whether the resource should be allocated to either of the ServerSession and one of the ClientSessions;

registering the acquired resource to a ServerSession or a ClientSession based on the determinations; and

releasing the resource when the scone ends;

wherein the client sends a request to the web server, the request is received by a dispatch servlet running on the server, and the request is invoked as a thread in a single daemon process.

29. The method of claim 28 in which the connections are different browser processes.

30. The method of claim 28 in which the connections are different browsers.

31. The method of claim 28 in which the connections are different client devices.

32. The method of claim 28 in which the user is a client using a stateless protocol.

33. The method of claim 32 in which the stateless protocol is hypertext markup language (HTML) protocol.

34. The method of claim 28 further comprising releasing the acquired resource registered to the one or more ClientSessions upon termination of the one or more ClientSessions.