Determining and assigning a default value to a current server response if the current server response is not received from the server within a time-limit

• US 10,171,571 B2
• Filed: 01/05/2017
• Issued: 01/01/2019
• Est. Priority Date: 02/22/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bombacino, Vinicio, Cavazza, Paolo, Lanni, Leonardo, Tortosa, Andrea
• Primary Examiner(s): Patel, Dhairya A
• Application Number:
  US15/399,731
• Publication Number:
  US 20170118277A1
• Time in Patent Office: 726 Days
• CPC Class Codes: H04L 67/00 Network arrangements or protocols for supporting network services or applications user-to-user messaging H04L51/00; network arrangements, protocols or services for supporting real-time applications in data packet communications networks H04L65/00
• 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 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests

Abstract

Provided are a computer program, method, and system for determining and assigning a default value to a current server response if the current server response is not received from the server within a time-limit. An indication of a submission of a request is transmitted to the server for receiving a current server response. A default value is assigned to the current server response if the current server response is not received from the server within a time-limit with respect to the current submission of the request. A set of operations being performed from the assignment of the default value to the current server response is logged. An actual value of the current server response is received from the server and the logged operations are rolled-back and the current server response reset to the actual value if the actual value is different from the default value.

Claims

1. A non-transitory computer usable medium having a computer program executed by a data processing system to communicate with a server and to perform operations, the operations comprising:

receiving a current submission of a request;

transmitting an indication of the request to the server for receiving a current server response to the current submission of the request;

assigning a default value to the current server response for the request if the current server response is not received from the server within a time limit with respect to the current submission of the request, wherein the default value is assigned to increase responsiveness to the request by avoiding delays beyond the time limit;

logging a set of operations being performed from the assignment of the default value to the current server response;

receiving an actual value of the current server response from the server;

rolling-back the logged operations and resetting the current server response to the actual value if the actual value is different from the default value; and

using the actual value in response to resetting the current server response to the actual value.

2. The non-transitory computer usable medium of claim 1, wherein the assigning the default value to the current server response comprises:

setting the default value according to previous server responses being received from the server for previous submissions of the request.

3. The non-transitory computer usable medium of claim 2, wherein the setting the default value according to previous server responses comprises:

setting the default value according to at least one frequency distribution of values of the previous server responses.

4. The non-transitory computer usable medium of claim 3, wherein the at least one frequency distribution is a single frequency distribution of the values of the previous server responses, wherein the setting the default value according to at least one frequency distribution comprises setting the default value to a value of the previous server responses having a highest frequency in the frequency distribution.

5. The non-transitory computer usable medium of claim 3, wherein the at least one frequency distribution comprises a separate frequency distribution for each of a plurality of submission characteristics of the previous submissions of the request, wherein the setting the default value according to the at least one frequency distribution comprises setting the default value to a value of the previous server responses having a highest frequency in the frequency distribution for the submission characteristics of the current submission of the request.

6. The non-transitory computer usable medium of claim 5, wherein the submission characteristics comprise a time frame of the previous submissions of the request, wherein the frequency distribution for each time frame provides different frequency for the time frame.

7. The non-transitory computer usable medium of claim 1, wherein the time limit comprises a first time limit, wherein the operations further comprise:

entering an error condition if the current server response is not received from the server within a second time limit with respect to the current submission of the request, wherein the second time limit is higher than the first time limit.

8. The non-transitory computer usable medium of claim 1, wherein the operations further comprise:

setting the time limit according to previous delays of the previous server responses with respect to previous submissions of the request.

9. The non-transitory computer usable medium of claim 1, wherein the receiving of a current submission of a request comprises detecting a selection of a corresponding command in a web page by a web browser, wherein the operations further comprise:

displaying an indication of the current server response in the web browser.

10. The non-transitory computer usable medium of claim 9, wherein the transmitting the indication of the request to the server comprises calling a corresponding script in a definition of the web page, wherein the steps of assigning the default value, logging the set of operations, rolling-back the logged operations, and resetting the current server response are performed in response to executing a corresponding indicator in the corresponding script.

11. The non-transitory computer usable medium of claim 9, wherein the current submission of the request comprises a unique code for disabling a caching mechanism of the web browser, wherein the operations further comprise:

discarding a unique identifier for the default value.

12. A method for interacting with a distributed application on a client-side of the distributed application, comprising:

receiving a current submission of a request;

transmitting an indication of the request to a server for receiving a current server response to the current submission of the request;

assigning a default value to the current server response for the request if the current server response is not received from the server within a time limit with respect to the current submission of the request, wherein the default value is assigned to increase responsiveness to the request by avoiding delays beyond the time limit;

logging a set of operations being performed against the distributed application starting from the assignment of the default value to the current server response;

receiving an actual value of the current server response from the server;

rolling-back the logged operations and resetting the current server response to the actual value if the actual value is different from the default value; and

using the actual value in response to resetting the current server response to the actual value.

13. The method of claim 12, wherein the assigning the default value to the current server response comprises:

setting the default value according to previous server responses being received from the server for previous submissions of the request.

14. The method of claim 13, wherein the setting the default value according to previous server responses comprises:

setting the default value according to at least one frequency distribution of values of the previous server responses.

15. The method of claim 14, wherein the at least one frequency distribution is a single frequency distribution of the values of the previous server responses, wherein the setting the default value according to at least one frequency distribution comprises setting the default value to a value of the previous server responses having a highest frequency in the frequency distribution.

16. The method of claim 14, wherein the at least one frequency distribution comprises a separate frequency distribution for each of a plurality of submission characteristics of the previous submissions of the request, wherein the setting the default value according to the at least one frequency distribution comprises setting the default value to a value of the previous server responses having a highest frequency in the frequency distribution for the submission characteristics of the current submission of the request.

17. The method of claim 16, wherein the submission characteristics comprise a time frame of the previous submissions of the request, wherein the frequency distribution for each time frame provides different frequency for the time frame.

18. The method of claim 12, wherein the receiving of a current submission of a request comprises detecting a selection of a corresponding command in a web page by a web browser, further comprising:

displaying an indication of the current server response in the web browser.

19. A system in communication with a server over a network comprising:

a data processing system, including a central processing unit (CPU), for executing a computer program on a non-transitory computer usable medium to perform operations, the operations comprising;

receiving a current submission of a request;

transmitting an indication of the request to the server for receiving a current server response to the current submission of the request;

assigning a default value to the current server response for the request if the current server response is not received from the server within a time limit with respect to the current submission of the request, wherein the default value is assigned to increase responsiveness to the request by avoiding delays beyond the time limit;

logging a set of operations being performed from the assignment of the default value to the current server response;

receiving an actual value of the current server response from the server;

rolling-back the logged operations and resetting the current server response to the actual value if the actual value is different from the default value; and

using the actual value in response to resetting the current server response to the actual value.

20. The system of claim 19, wherein the assigning the default value to the current server response comprises:

setting the default value according to previous server responses being received from the server for previous submissions of the request.

21. The system of claim 20, wherein the setting the default value according to previous server responses comprises:

setting the default value according to at least one frequency distribution of values of the previous server responses.

22. The system of claim 21, wherein the at least one frequency distribution is a single frequency distribution of the values of the previous server responses, wherein the setting the default value according to at least one frequency distribution comprises setting the default value to a value of the previous server responses having a highest frequency in the frequency distribution.

23. The system of claim 21, wherein the at least one frequency distribution comprises a separate frequency distribution for each of a plurality of submission characteristics of the previous submissions of the request, wherein the setting the default value according to the at least one frequency distribution comprises setting the default value to a value of the previous server responses having a highest frequency in the frequency distribution for the submission characteristics of the current submission of the request.

24. The system of claim 23, wherein the submission characteristics comprise a time frame of the previous submissions of the request, wherein the frequency distribution for each time frame provides different frequency for the time frame.

25. The system of claim 19, wherein the receiving of a current submission of a request comprises detecting a selection of a corresponding command in a web page by a web browser, wherein the operations further comprise:

displaying an indication of the current server response in the web browser.