US 9,426,200 B2Granted

Updating dynamic content in cached resources

AssigneeSap SE

InventorHarald Buerner

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Abstract

The disclosure generally describes computer-implemented methods, software, and systems for rendering content. One method includes: receiving a request for content for a previously-provided resource, the request including an entity tag, and the resource including dynamic and static content; generating delta information identifying the change for inclusion in a cookie associated with the resource where only a portion of the dynamic content has changed, the delta information included in the cookie associated with a particular location of the corresponding dynamic content within the resource; and providing a response that includes the cookie for updating the dynamic content. Information stored in the cookie is used by the requesting client to update portions of dynamic content while maintaining static portions based on a cached version of the static portions.

Claims19

Dependent claims

A computer-implemented method comprising:

receiving a request for content for a resource that was previously provided, wherein the request includes an entity tag, wherein the resource includes dynamic content and static content, and wherein the entity tag includes at least a version identifier associated with the static content, a resource identifier associated with the resource, and a dynamic data type;
determining, using the entity tag, whether the static content is out of date;
in response to determining that the static content is out of date:
providing, using the resource identifier, the resource;
and
identifying a current version of the dynamic content for inclusion in a cookie associated with the resource;
in response to determining that the resource is not out of date:
determining whether the dynamic content is invalid by determining, using the current version of the dynamic content, if the dynamic content has changed since a last time that the resource was requested;
in response to determining that the dynamic content is invalid:
generating, using the dynamic data type from the entity tag, a change to the dynamic content;
updating the current version of the dynamic content;
and
generating delta information identifying the change for inclusion in the cookie associated with the resource, wherein only at least a portion of the dynamic content associated with the resource has changed, the delta information included in the cookie associated with a particular location of the corresponding dynamic content within the resource;
and
providing a response that includes the cookie for use in updating the dynamic content, wherein the information stored in the cookie is used by the requesting client to update the portions of dynamic content while maintaining the static portions based on a cached version of the static portions of the resource.

12 more elements

A computer-program product, the computer program product comprising computer-readable instructions embodied on tangible, non-transitory media, the instructions operable when executed by at least one computer to:

receive a request for content for a resource that was previously provided, wherein the request includes an entity tag, wherein the resource includes dynamic content and static content, and wherein the entity tag includes at least a version identifier associated with the static content, a resource identifier associated with the resource, and a dynamic data type;
determine, using the entity tag, whether the static content is out of date;
in response to determining that the static content is out of date:
provide, using the resource identifier, the resource;
and
identify a current version of the dynamic content for inclusion in a cookie associated with the resource;
in response to determining that the resource is not out of date:
determine whether the dynamic content is invalid by determining, using the current version of the dynamic content, if the dynamic content has changed since a last time that the resource was requested;
in response to determining that the dynamic content is invalid:
generate, using the dynamic data type from the entity tag, a change to the dynamic content;
update the current version of the dynamic content;
and
generate delta information identifying the change for inclusion in the cookie associated with the resource, wherein only at least a portion of the dynamic content associated with the resource has changed, the delta information included in the cookie associated with a particular location of the corresponding dynamic content within the resource;
and
provide a response that includes the cookie for use in updating the dynamic content, wherein the information stored in the cookie is used by the requesting client to update the portions of dynamic content while maintaining the static portions based on a cached version of the static portions of the resource.

12 more elements

A system, comprising:

memory operable to store content, including static and dynamic content;
and
at least one hardware processor interoperably coupled to the memory and operable to perform instructions to:
receive a request for content for a resource that was previously provided, wherein the request includes an entity tag, wherein the resource includes dynamic content and static content, and wherein the entity tag includes at least a version identifier associated with the static content, a resource identifier associated with the resource, and a dynamic data type;
determine, using the entity tag, whether the static content is out of date;
in response to determining that the static content is out of date:
provide, using the resource identifier, the resource;
and
identify a current version of the dynamic content for inclusion in a cookie associated with the resource;
in response to determining that the resource is not out of date:
determine whether the dynamic content is invalid by determining, using the current version of the dynamic content, if the dynamic content has changed since a last time that the resource was requested;
in response to determining that the dynamic content is invalid:
generate, using the dynamic data type from the entity tag, a change to the dynamic content;
update the current version of the dynamic content;
and
generate delta information identifying the change for inclusion in the cookie associated with the resource, wherein only at least a portion of the dynamic content associated with the resource has changed, the delta information included in the cookie associated with a particular location of the corresponding dynamic content within the resource;
and
provide a response that includes the cookie for use in updating the dynamic content, wherein the information stored in the cookie is used by the requesting client to update the portions of dynamic content while maintaining the static portions based on a cached version of the static portions of the resource.

15 more elements

Dependencies are inferred from the claim text.