public class

HttpResponseHeaders

extends Object
java.lang.Object
   ↳ com.atlassian.jira.web.servlet.HttpResponseHeaders

Class Overview

Utility methods for setting headers on the HTTP response.

Summary

Public Methods
static void cachePrivatelyForAboutOneYear(HttpServletResponse response)
Sets the Cache-control and Expires headers to allow browsers, but not proxies, to cache the response for up to approximately 1 year.
static void cachePubliclyForAboutOneYear(HttpServletResponse response)
Sets the Cache-control and Expires headers to allow browsers and proxies to cache the response for up to approximately 1 year.
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Inherited Methods
From class java.lang.Object

Public Methods

public static void cachePrivatelyForAboutOneYear (HttpServletResponse response)

Sets the Cache-control and Expires headers to allow browsers, but not proxies, to cache the response for up to approximately 1 year. This kind of caching is appropriate for non-public content such as avatars, attachments, thumbnails, etc. More specifically, this sets the following headers: 

   Cache-control: {@value #CACHE_PRIVATELY_ONE_YEAR}
   Expires: Wed, 31 Dec 1969 23:59:59 GMT

The Expires header is set to a date in the past to prevent HTTP 1.0 proxies from caching what is non publicly-accessible content. Since the Cache-control header takes precendence over the Expires header, HTTP 1.1-capable proxies will still cache the data privately.

If the response already has a Cache-control header, it will be overwritten.

Parameters
response the HttpServletResponse on which we will set the header

public static void cachePubliclyForAboutOneYear (HttpServletResponse response)

Sets the Cache-control and Expires headers to allow browsers and proxies to cache the response for up to approximately 1 year. This kind of caching is appropriate for public content such as icons, sprites, etc. 

   Cache-control: {@value #CACHE_PRIVATELY_ONE_YEAR}
   Expires: "now" + 1 year

If the response already has a Cache-control header, it will be overwritten.

Parameters
response the HttpServletResponse on which we will set the header