rich:fileUpload> individual/ dynamic error messages per file

[leo_dev]

Hello,

My scenario:
I have a portlet for uploading files and forwarding their contents on to web services via byte[].
Therefore, I have a listener methode registered for fileUpload:

 public void listener( UploadEvent event ) throws Exception
 {
 UploadItem item = event.getUploadItem();
 File file = new File();
 file.setName( item.getFileName() );
 file.setData( item.getData() );
 submitFile( file );
 }

The submitFile method calls the web services.
Each file results in one call and may cause an individual error.

My goal:
If an error occurs during web service call, then the error message should be written in file list to the concerned file!
I registered an attribute of a backing bean for error messages:

<rich:fileUpload ... transferErrorLabel="#{fileUpload.errorText}" ...

This attribute is filled with the individual error messages.


My problem:
The updated server side backing bean attribute containing the error message is never read, since the file upload component in client is not rerendered!
If I rerender it, all contained files in file list get lost!

My questions:
1. Is there a possibility to hold state of client file list in server backing bean? (Seems difficult, since "onadd" does not provide information about chosen file!)
... so that I am always able to recreate file list in fileupload component on "rerender".
2. Is there a workaround for my problem with the dynamic error messages?

Thanks,

leo

[ilya_shaikovsky]

transferErrorLabel - reads only once and used for all the upload. Please submit RFC on this functionality.

you could try to handle onerror and and change the labels via just js.

[jziemke]

Hi Leo,

I find your posting because i run in the same problem then you. Did you find any solution for your problem , in the meantime? If so can you give me a tipp or can you post your solution?

Thanks JZiemke

[leo_dev]

I do a little workaround:

Just holding names of uploaded files and corresponding status/ error messages in server side backing bean.

Client/ Display: The file list of component <rich:fileUpload> is cleared directly (autoclear="true") and I display a separate file list after upload, which also contains the error/ status messages for each file.

This also has positive side effects, since I avoid further unpleasant behavior of the file upload component's file list.

[jziemke]

Hi Leander,

thank you for your fast answer .

This is a very good idea for a workaround. At the moment a play around with the 'onerror' event but now i will do it like you.....because my javascript skills are not the best

Have a nice day

Joern