resource-data (clj)

Returns data about the resource specified by url, or nil if an appropriate resource does not exist. The return value is a map with optional values for: :content - the content of the URL, suitable for use as the :body of a ring response :content-length - the length of the :content, nil if not available :last-modified - the Date the :content was last modified, nil if not available This dispatches on the protocol of the URL as a keyword, and implementations are provided for :file and :jar. If you are on a platform where (Class/getResource) returns URLs with a different protocol, you will need to provide an implementation for that protocol. This function is used internally by url-response.