On 03/25/2004 11:28 AM Tom Bednarz wrote:
1) How are Roles defined? Where are they stored? I don't want these things stored in a XML file. Is there a way to store these things in a database? Is there any documentation about a datamodel (Fields, datatypes etc)
Hi Tom, for this you should check the different Realm implementations available, see the docs on jakarta's tomcat website. There is a JDBC realm that sounds right for your purposes.
2) How are roles assigned to users or groups of users? Where are these assignments stored? Basically roles should be assigned to groups. Users will then join or leave groups with specific privileges.
This is done at login by tomcat, but such mechanisms should be available on all containers. The user name is stored in the session (although not available to you by session.getAttribute(), only request.getUserPrincipal() or getRemoteUser() ) plus the roles are stored as an array of strings, e.g. user, admin, super, available again via the request.isUserInRole() boolean method. Should be container-independent.
3) What do I need to do in Struts to configure all this? I read that since 1.1 I can define a role property in ActionMappings. How and against what is that definition verified? Are there any standard/basic mechanisms that can be extended ?
Struts checks against request.isUserInRole(). I don't think it's standard or basic to extend this. However it's open-source, so you could do whatever you wanted. The same applies to tomcat.
4) Is there any menu system available, that supports roles and can be integrated in a Struts based application?
Have you checked out struts-menu? I think it's on source-forge, if not check for the link on the struts website.
5) Are there any special considerations when moving from Struts 1.0 to 1.1? With other words, is the code backward compatible or will my working code for 1.0 not work anymore on 1.1?
There's an upgrade doc on the struts website. It is /mostly/ backwards compatible. I've heard of many people just dropping in the new struts jar to their project and having no problems.
Adam
-- struts 1.1 + tomcat 5.0.16 + java 1.4.2 Linux 2.4.20 Debian
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