NOTIFICATION AND SYNCHRONIZATION OF UPDATED DATA

• US 20090327354A1
• Filed: 06/26/2008
• Published: 12/31/2009
• Est. Priority Date: 06/26/2008
• Status: Abandoned Application

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Borst, Jeroen de, Nalliah, Selva, Resnick, Kevin
• Application Number:
  US12/146,472
• Publication Number:
  US 20090327354A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/275 Synchronous replication
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes

Abstract

Techniques for notification and synchronization are described. Some techniques may comprise receiving a synchronization request and establishing an updating session connection. The updating session may be based on a delay interval parameter specifying a length of a delay interval and a collection parameter specifying one or more collections to be synchronized. When data for the collections to be synchronized is unchanged, the updating session may be maintained, and the synchronization request may be kept pending. Upon receiving a notification from a data store during the delay interval that updated data is available for one or more of the collections to be synchronized, a synchronization session connection is established with the data store to retrieve the updated data. A notification and synchronization message comprising the updated data may be sent as a response to the pending synchronization request. Other embodiments are described and claimed.

Claims

1. A method, comprising:

receiving a synchronization request from a synchronization agent;

establishing an updating session connection with the synchronization agent based on a delay interval and one or more collections to be synchronized;

maintaining the updating session connection and keeping the synchronization request pending when data for the one or more collections to be synchronized is unchanged;

receiving a notification from a data store during the delay interval indicating that updated data is available for one or more of the collections to be synchronized;

establishing a synchronization session connection with the data store for retrieving the updated data; and

sending a notification and synchronization message comprising the updated data to the synchronization agent as a response to the pending synchronization request.

2. The method of claim 1, wherein the synchronization request comprise a Hypertext Protocol request.

3. The method of claim 1, wherein in the synchronization request comprises one or more of the delay interval and the collections to be synchronized.

4. The method of claim 1, wherein the synchronization request comprises a partial request and one or more of the delay interval and the collections to be synchronized are provided from a user profile.

5. The method of claim 1, wherein the notification and synchronization message comprises a list of collections for which updated data is available.

6. The method of claim 5, wherein the notification and synchronization message is formatted as a notification message comprising synchronization data.

7. The method of claim 5, wherein the notification and synchronization message is formatted as a synchronization message comprising notification data.

8. The method of claim 1, wherein the notification and synchronization message is sent over the updating session connection.

9. The method of claim 1, further comprising:

establishing one or more subscription connections to the data store based on the collections to be synchronized; and

listening for notifications over the subscriptions connections.

10. The method of claim 1, further comprising establishing a synchronization session connection, retrieving updated data, and sending the notification and synchronization message when the data for the one or more collections to be synchronized has changed.

11. A computer-readable storage medium having computer-executable instructions stored thereon which, when executed by a computer, will cause the computer to:

establish an updating session connection with a synchronization agent in response to a synchronization request, the updating session connection to be maintained and the synchronization request kept pending for a delay interval when data is unchanged for one or more collections to be synchronized;

retrieve updated data in response to receiving a notification from a data store during the delay interval; and

send a notification and synchronization message comprising the updated data to the synchronization agent as a response to the pending synchronization request.

12. The computer-readable medium of claim 11, further comprising computer-executable instructions stored thereon which, when executed by a computer, will cause the computer to associate a delay interval parameter and a collections parameter with the synchronization request, the delay interval parameter specifying a length of the delay interval, the collections parameter specifying the one or more collections to be synchronized.

13. The computer-readable medium of claim 12, further comprising computer-executable instructions stored thereon which, when executed by a computer, will cause the computer to load a user profile and provide one or more of the delay interval parameter and the collections parameter from the user profile.

14. The computer-readable medium of claim 13, further comprising computer-executable instructions stored thereon which, when executed by a computer, will cause the computer to establish one or more subscription connections to the data store and listen for notifications over the subscriptions connections.

15. The computer-readable medium of claim 11, further comprising computer-executable instructions stored thereon which, when executed by a computer, will cause the computer to establish a synchronization session connection, retrieve updated data, and send the notification and synchronization message when the data has changed for the one or more collections since last synchronization.

16. An apparatus, comprising:

an updating session component to establish an updating session connection with a synchronization agent in response to a synchronization request, the updating session connection to be maintained and the synchronization request kept pending for a delay interval when data is unchanged for one or more collections to be synchronized; and

a synchronization component to retrieve updated data in response to receiving a notification from a data store during the delay interval and to send a notification and synchronization message comprising the updated data to the synchronization agent as a response to the pending synchronization request.

17. The apparatus of claim 16, comprising a notification component to establish one or more subscription connections to the data store for listening for notifications.

18. The apparatus of claim 17, the notification component to terminate the subscription connections after receiving a notification.

19. The apparatus of claim 16, the updating session component to terminate the updating session connection upon expiration of the delay interval if data remains unchanged for the one or more collections to be synchronized.

20. The apparatus of claim 16, the synchronization component to establish a synchronization session connection, retrieve updated data, and send the notification and synchronization message when the data has changed for the one or more collections since last synchronization.