[jira] [Created] (AMBARI-5940) Views: parameterization of view parameters

["Shivani Gupta (JIRA)" <ji...@apache.org>]

Shivani Gupta created AMBARI-5940:
-------------------------------------

             Summary: Views: parameterization of view parameters
                 Key: AMBARI-5940
                 URL: https://issues.apache.org/jira/browse/AMBARI-5940
             Project: Ambari
          Issue Type: Task
    Affects Versions: 1.6.0
            Reporter: Shivani Gupta
             Fix For: 1.7.0


In a lot of cases, folks will want to use viewContext.getUsername with their view instances parameters. Right now, we leave that logic + code to the view developer. We should support parametrization of view instance params to handle this, and provide username as the first supported param.
For example, say I have a parameter "view.path" : "/tmp/some/path"
In my view, I want to append username, so I have logic in my view code to get view.path and + viewContext.getUsername()
viewContext.getProperties().get("view.path") + "/" + viewContext.getUsername()
resulting in /tmp/some/path/horton
If views support parametrization, i could do this:
"view.path" : "/tmp/some/path/$
{username}
"
then all I need to do viewContext.getProperties().get("view.path");
which returns /tmp/some/path/horton



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