uDig/udig-platform — pull request #94 by jhudson (2012-01-24 04:58:17+00:00)
Title: Tile-cache using Cache-Control headers

Tile-caching using the Cache-Control headers from servers that send it.

When the Cache-Control header is present, when first retrieving a tile a meta file is added with the same name as the tile containing the max cache age in seconds. The next time the tile is requested from the disk this file is used to ascertain if the tile is considered stale (out of date according to its max cache age).

This work builds on the WMS tilset work http://udig.refractions.net/confluence/display/UDIG/WMS+TileSet+Definition