Method for maintaining and managing dynamic web pages stored in a system cache and referenced objects cached in other data stores

• US 7,343,412 B1
• Filed: 06/23/2000
• Issued: 03/11/2008
• Est. Priority Date: 06/24/1999
• Status: Expired due to Fees

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: International Business Machines Corporation
• Inventors: Zimowski, Melvin Richard
• Primary Examiner(s): Nguyen; Quang N.
• Application Number:
  US09/602,412
• Time in Patent Office: 2,818 Days
• Field of Search: 709217-219, 709/204, 709/203, 709/214, 709/229, 709/224, 709/226, 709/216, 709/206, 707/3, 707/206, 707/10, 711/118, 711/122, 711/124, 711/133, 711/137, 711/141, 711/4, 711/134, 370/249, 725/63, 715/513
• US Class Current: 709/226
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/5682 Policies or rules for updating, deleting or replacing the stored data

Abstract

A method, apparatus, and article of manufacture for managing data stored in a data storage device connected to a computer. In accordance with the present invention, it is determined that a web page is to be cached. The web page references other objects. The referenced objects are stored in one or more data stores. The web page is cached. The cached web page and the referenced objects are managed in a coordinated fashion to ensure the display of a complete Web page.

Claims

1. A method for responding to a request for a web page, comprising:

determining whether to respond to a request for a web page by retrieving the web page from a cache or by constructing the web page;

if it is determined that the request is to be responded to by constructing the web page,

retrieving data and placing data in the web page, wherein the data is linked to other objects,

determining that the web page is to be cached, wherein the web page references the other objects;

storing the referenced objects in one or more data stores; and

caching the web page in the cache;

if it is determined that the request is to be responded to by retrieving the web page from the cache, retrieving the web page from the cache;

automatically managing the cached web page and the referenced objects to ensure the display of a complete web page; and

when one or more of the referenced objects is deleted, deleting the web page from the cache,

wherein a system initialization file comprises at least one caching directive which is used in determining whether to cache the constructed web page.

2. The method of claim 1, further comprising, when the web page is deleted from the cache, deleting the referenced objects.

3. The method of claim 1, wherein managing the cached web page and referenced objects comprises the steps of:

receiving a request from an administrator to delete the retrieved data based on administrator-provided input; and

deleting the retrieved data based on the administrator-provided input.

4. The method of claim 1, wherein managing the cached web page and referenced objects comprises the steps of:

receiving a request from an administrator to delete the linked objects based on administrator-provided input; and

deleting the linked objects based on the administrator-provided input.

5. The method of claim 1, further comprising, processing a caching directive that specifies whether the web page should be cached.

6. The method of claim 1, further comprising, associating an expiration timestamp with the web page, wherein the expiration timestamp defines a time period in which the cached web page is valid.

7. The method of claim 6, wherein managing the cached web page and referenced objects further comprises automatically deleting the web page and the referenced objects when the expiration timestamp precedes a current timestamp.

8. The method of claim 7, wherein deleting further comprises first, deleting the web page and second, deleting the referenced objects.

9. The method of claim 6, wherein managing the cached web page and referenced objects comprises the steps of:

receiving a request from an administrator to delete all cached web pages according to some administrator-specified selection criteria; and

deleting all cached web pages and referenced objects that satisfy the administrator-specified selection criteria.

10. The method of claim 9, wherein deleting further comprises first, deleting the web page and second, deleting the referenced objects.

11. The method of claim 1, wherein at least one of the referenced objects is not stored in said cache.

12. The method according to claim 1, wherein the cached web page and the referenced objects are automatically managed ensuring the display of a complete web page by referencing a dependency table storing relation information for the cached web page and the referenced objects.

13. The method of claim 1, wherein it is determined that the request is to be responded to by retrieving the web page from the cache when the request matches a cache key.

14. The method of claim 13, wherein the cache key comprises path information, a macro name, an HTML or XML block name, and a query string that caused the web page to be generated.

15. The method of claim 1, where the at least one caching directive comprises at least one line of computer-readable code.

16. The method of claim 1, wherein web server software generates the web page when it is determined that the request is to be responded to by constructing the web page.

17. A method for responding to a request for a web page, comprising:

determining whether to respond to a request for a web page by retrieving the web page from a cache or by constructing the web page;

if it is determined that the request is to be responded to by constructing the web page,

retrieving data and placing data in the web page, wherein the data is linked to other objects,

determining that the web page is to be cached, wherein the web page references the other objects;

storing the referenced objects in one or more data stores; and

caching the web page in the cache;

if it is determined that the request is to be responded to by retrieving the web page from the cache, retrieving the web page from the cache;

automatically managing the cached web page and the referenced objects to ensure the display of a complete web page; and

when one or more of the referenced objects is deleted, deleting the web page from the cache,

wherein, when the request matches a cache key, determining that the request is to be responded to by retrieving the web page from the cache,

wherein the cache key comprises path information, a macro name, an HTML or XML block name, and a query string that caused the web page to be generated, and

wherein the cache key further comprises the form data that caused the web page to be generated.