[jira] Updated: (TRINIDAD-1843) Need to feedback failures for users when a file processor in chain fails

["Prakash Udupa (JIRA)" <de...@myfaces.apache.org>]

     [ https://issues.apache.org/jira/browse/TRINIDAD-1843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Prakash Udupa updated TRINIDAD-1843:
------------------------------------

    Status: Patch Available  (was: Open)

> Need to feedback failures for users when a file processor in chain fails
> ------------------------------------------------------------------------
>
>                 Key: TRINIDAD-1843
>                 URL: https://issues.apache.org/jira/browse/TRINIDAD-1843
>             Project: MyFaces Trinidad
>          Issue Type: Improvement
>          Components: Components
>    Affects Versions: 2.0.0.3-core
>            Reporter: Prakash Udupa
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> Through JIRA 1757 (https://issues.apache.org/jira/browse/TRINIDAD-1757, we supported chaining of uploaded file processors.
> There are two means for file upload processors to convey failures.
> 1. UploadedFileProcessor.processFile() implementations can throw IOException.
> 2. UploadedFile.getOpaqueData() implementation can convey more information about error.
> Example of failures could be no space in disk, unacceptable end of line markers, virus etc. Some of these failures need to be notified to users, and currently there is no good mechanism to show this to end users. We log #1, and we do not interpret #2. The File upload happens before the JSF lifecycle kicks in, so we cannot raise faces exceptions or use faces message.
> This JIRA issue is to track providing some means for the uploaded file processors to be able to propagate failure message to end users.
> I'm working on a solution and will provide patch soon.

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