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Message-ID: <236dfbef05091219182b8c9141@mail.gmail.com>
Date: Mon, 12 Sep 2005 22:18:12 -0400
From: Michael Favata <michael.j.favata@gmail.com>
Reply-To: michael.j.favata@gmail.com
To: commons-user@jakarta.apache.org
Subject: PortletFileUpload Returning Empty List
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I recently downloaded the nightly build (9/11/2005) of commons-fileupload=
=20
and I am having a problem using PortletFileUpload. I am running Jetspeed 2=
=20
on Tomcat 5.5.9. I am also using the MVCPortlet framework.=20

I am returned an empty list when I invoke the parseRequest method offered b=
y=20
the PortletFileUpload class. After a few frustrating hours I downloaded the=
=20
commons-fileupload source and noticed that a MalformedStreamException is=20
being buried in the skipPreamble method offered by the=20
org.apache.commons.fileupload.MultipartStream class:

try {
// Discard all data up to the delimiter.
discardBodyData();

// Read boundary - if succeded, the stream contains an
// encapsulation.
return readBoundary();
} catch (MalformedStreamException e) {
return false;
}

The encapsulated message in the exception is:=20
org.apache.commons.fileupload.MultipartStream$MalformedStreamException:Stre=
am
ended unexpectedly

The JSP I am using to submit my html form is as follows:

<%@ page contentType=3D"text/html; charset=3DUTF-8" %>
<%@ page import=3D"java.util.List" %>
<%@ page import=3D"java.util.ListIterator" %>
<%@include file=3D"common_imports.jsp" %>
<%=20
PortletURL o_upload_action_url =3D rRes.createActionURL();
o_upload_action_url.setParameter( "request_type", "UploadMedia" );

PortletURL o_go_back_render_url =3D rRes.createRenderURL();
o_go_back_render_url.setParameter("request_type", "ViewIndex");
%>

<%@include file=3D"sys_message.jsp" %>

<center>
<h3>Upload Media</h3><br>

<form name=3D"upload_media" action=3D"<%=3D o_upload_action_url%>" method=
=3D"POST"=20
enctype=3D"multipart/form-data">
<B>Upload Single File:</B> Use this upload option if you are uploading a=20
single file.<br>
<input type=3D"file" size=3D"32" name=3D"file" ><br><br>
<input type=3D"checkbox" name=3D"checkbox_share">Share to Public<br>
<input type=3D"submit" value=3D"Upload"><br>=20
</form>

[<b><a href=3D"<%=3D o_go_back_render_url%>">Go Back</a></b>]

</center>


An excerpt of the Java code I am using to extract the uploaded file:

public String process(ActionRequest _o_request, ActionResponse _o_response,=
=20
ActionConfig _o_config)
throws PortletException, IOException
{

...

PortletFileUpload o_upload =3D new PortletFileUpload( new=20
DiskFileItemFactory() );
o_upload.setHeaderEncoding( PortletFileUpload.MULTIPART_FORM_DATA );

try
{
List l_items =3D o_upload.parseRequest( _o_request );

FileItem o_file_item =3D (FileItem) l_items.get( 0 );
}

...

Inspecting the list returned from the parseRequest method using a debugger=
=20
always yields an empty list. Perhaps there is a configuration entry in=20
either Tomcat or Jetspeed 2 that allows/disallows multipart file uploads? I=
f=20
anyone has any ideas it would be greatly appreciated. Thank you in=20
advance!!!

--=20
Michael J. Favata
AIM: MjFavata

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