Network-aware structured content downloads

摘要

A request for content is received at a content server via a first network connection from a client device. The content includes a set of portions represented within a root document. Based upon a download constraint of at least one portion of the content and a network characteristic of the first network connection, at least one portion of the content is deferred for download over a network connection other than the first network connection. The content is sent with each deferred portion of the content replaced with a content stub within the root document. Each content stub identifies the respective portion of the content as a deferred portion of the content and includes a content identifier of the respective deferred portion of the content.

主权项

1. A method, comprising:
receiving, at a content server via a first network connection, a request for content from a client device, where the content comprises a plurality of portions represented within a root document and individual portions of the content within the root document are configurable with assigned download constraints that specify network characteristics under which the individual portions of the content are downloadable; determining to defer at least one portion of the content for download via a network connection other than the first network connection based upon a network characteristic of the first network connection not satisfying a configured download constraint assigned to the at least one portion of the content, comprising:
comparing the configured download constraint assigned the at least one portion of the content to the network characteristic of the first network connection; anddetermining that the configured download constraint identifies a network download characteristic greater than the network characteristic of the first network connection; and sending the root document with each deferred portion of the content replaced with a content stub within the root document, where the content stub comprises an extensible markup language (XML) fragment and further comprising copying the XML fragment into a location of the deferred portion of the content within the root document; where each content stub identifies the respective deferred portion of the content as a deferred content portion and comprises a deferred content portion identifier of the respective deferred content portion; and where at least one content stub further comprises the configured download constraint of the respective deferred portion of the content.