[seek-dev] Re: file transfer experiment

[Jing Tao]

Hi, Bing:

I took a look at the code. It is good. But I didn't find source code for 
service. Could you show me the code?

I guess this is still a transfer method. You transfer file from server to 
client and return a integer to user( 1 means successfull or 0 means fail 
or some other stuff). Is my guess right? By the way, does client need 
install grid-ftp server or ft pserver?

Thanks.

Jing

On Wed, 4 Feb 2004, Bing Zhu wrote:

> Hi Matt, Jing and Rod,
> 
> As I mentioned in last call, I am experimenting on building a file streaming
> service via OGSA.
> Attached is a client package for your comments.  I also put a Readme file
> which includes
> some examples.
> 
> This is an initial approach to prove that we can build some file transfer
> service.
> My tests have not been done for large files. Currently there is no access
> control for this exposed
> file transfer service. Since the tomcat is running using my account, it is
> currently guarded
> by Linux to access my files only.
> 
> The frame size for number of bytes to be transferred in a read loop in this
> approach is specified
> by a client. I also put some info regarding changing this size and
> re-building client in Readme file.
> 
> I even used the packaged jar files in my laptop running Windows XP and the
> files were
> downloaded successfully from Linux to my laptop. So I guess the approach at
> least can be used by
> individual user to download file(s) from our ecogrid data resources. For
> distributed jobs such
> as workflow, I still suggest using grid-ftp directly since Java code is
> always slower than the
> binary built with C.
> 
> Sincerely,
> Bing
> 
> 
> 

-- 
Jing Tao
National Center for Ecological
Analysis and Synthesis (NCEAS)
735 State St. Suite 204
Santa Barbara, CA 93101