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I have an application who has different interface for different role

I want to cache the application and update it if the user change his role

example :
Role user --> www.sample.com/index.jsp (user version)
Role admin --> www.sample.com/index.jsp (admin version)

Case 1 : if the user1 access to www.sample.com/index.jsp with Role User and his previous connection was with the Role User ---> use the cached version

Case 2 : if the user1 access to www.sample.com/index.jsp with Role Admin and his previous connection was with the Role User ---> update cache

I am using jquery mobile, html 5 , Java/Spring

Chimi
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1 Answers1

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You can't. To update the cache, the manifest MUST be changed, at least one byte somewhere in the file. Once the site is cached, the client only ever reloads the manifest itself to check if it has changed. If it hasn't, the cached data is used. If it has changed, all ressources listed under "CACHE" are loaded and cached.

To do what you plan you will most likely need a dynamic manifest, so that you can send it back slightly different, depending on whether a user an admin requests it. A possible way to dynamically change the manifest depending on admin or user would be to have two seperate manifest files on the serverside. They would be requested over a single URL. The server checks if the user is an admin or not (however you do that) and returns the correct manifest file. This way the cache would only be reloaded if a user changes from admin to client or the other way around.

Wutz
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  • The problem of a dynamic cache manifest is it force upload to every client when the case concerne only one client – Chimi Nov 21 '12 at 15:23
  • isn't there a way in javascript to force a reload the cache manifest even if it is the same version ? – Chimi Nov 21 '12 at 15:27
  • There is no way that I know of. But how does a dynamic manifest force a cache update on every client? The easiest way to dynamically change the manifest depending on admin or user would be to have two seperate manifest files on the serverside. They would be requested over a single URL, and the server checks if the user is an admin or not (however you do that) and returns the correct manifest file. This way the cache would only be reloaded if a user changes from admin to client or the other way around. – Wutz Nov 21 '12 at 15:37
  • I merged the comment into the answer. If this answers your question or helps you, consider marking it as the correct/valid answer. – Wutz Nov 21 '12 at 15:46
  • about " how does a dynamic manifest force a cache update on every client?" if the cache manifest change, every client will update there cache when this case only concerne one client I am gonna create a controller to serve a different manifest dependng on the role . I will keep you update when it works – Chimi Nov 21 '12 at 15:47