[jira] [Updated] (AMBARI-6231) Views: parameterization of view parameters

["Siddharth Wagle (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-6231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Siddharth Wagle updated AMBARI-6231:
------------------------------------

    Attachment: AMBARI-5940.patch

> Views: parameterization of view parameters
> ------------------------------------------
>
>                 Key: AMBARI-6231
>                 URL: https://issues.apache.org/jira/browse/AMBARI-6231
>             Project: Ambari
>          Issue Type: Task
>          Components: controller
>    Affects Versions: 1.7.0
>            Reporter: Siddharth Wagle
>            Assignee: Siddharth Wagle
>             Fix For: 1.7.0
>
>         Attachments: AMBARI-5940.patch
>
>
> 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");



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