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Posted to dev@mina.apache.org by "Jon Folland, Nativ Ltd" <jo...@nativ.tv> on 2009/10/12 14:08:10 UTC
Two questions on Apache Mina FTPServer
Hi,
1. Is there any reason why the FTPServer project does not support Socket and ServerSocket Factories in the DataConnection classes? The reason I ask is we would like to specify a different concrete implementation of the Java Socket and ServerSocket classes without changing the code base. I notice this is supported in the FTPClient class in the Apache commons net package and it's very useful from the FTP client perspective. Is there any chance of an update on the code?
2. Is there any reason why the DataConnection classes don't use nio server socket channels for better scaling on the sever-side to support large volumes of concurrent file transfers?
Many thanks,
Jon.
Re: Two questions on Apache Mina FTPServer
Posted by "Jon Folland, Nativ Ltd" <jo...@nativ.tv>.
Hi Sai,
Thanks for this. The strategy in point one is the one we followed and it works. The only reason I requested factories is to save a lot of cut of paste of perfectly good code. But this will suffice, so thanks for your help.
Regarding point 2, thanks very much for this also.
Regards,
Jon.
----- Original Message -----
From: "Sai Pullabhotla" <sa...@jmethods.com>
To: dev@mina.apache.org
Sent: Monday, 12 October, 2009 1:30:56 PM
Subject: Re: Two questions on Apache Mina FTPServer
I think #1 is kind of available. The data connection handling is
defined by the interface ServerDataConnectionFactory. The current
version ships the default implementation in IODataConnectionFactory.
It appears that you can substitute your own implemenation of
ServerDataConnectionFactory by setting the ATTRIBUTE_DATA_CONNECTION
in the FtpSession. So, as soon as a client logs in, you can use an
Ftplet to update the FtpSession and tell it to use your own version of
data connection factory.
I think #2 is in works or at least in the wish list for 2.0. Some one,
please correct me if I'm wrong.
Hope this helps.
Sai Pullabhotla
www.jMethods.com
On Mon, Oct 12, 2009 at 7:08 AM, Jon Folland, Nativ Ltd
<jo...@nativ.tv> wrote:
> Hi,
>
> 1. Is there any reason why the FTPServer project does not support Socket and ServerSocket Factories in the DataConnection classes? The reason I ask is we would like to specify a different concrete implementation of the Java Socket and ServerSocket classes without changing the code base. I notice this is supported in the FTPClient class in the Apache commons net package and it's very useful from the FTP client perspective. Is there any chance of an update on the code?
>
> 2. Is there any reason why the DataConnection classes don't use nio server socket channels for better scaling on the sever-side to support large volumes of concurrent file transfers?
>
> Many thanks,
>
> Jon.
>
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Re: Two questions on Apache Mina FTPServer
Posted by Sai Pullabhotla <sa...@jmethods.com>.
I think #1 is kind of available. The data connection handling is
defined by the interface ServerDataConnectionFactory. The current
version ships the default implementation in IODataConnectionFactory.
It appears that you can substitute your own implemenation of
ServerDataConnectionFactory by setting the ATTRIBUTE_DATA_CONNECTION
in the FtpSession. So, as soon as a client logs in, you can use an
Ftplet to update the FtpSession and tell it to use your own version of
data connection factory.
I think #2 is in works or at least in the wish list for 2.0. Some one,
please correct me if I'm wrong.
Hope this helps.
Sai Pullabhotla
www.jMethods.com
On Mon, Oct 12, 2009 at 7:08 AM, Jon Folland, Nativ Ltd
<jo...@nativ.tv> wrote:
> Hi,
>
> 1. Is there any reason why the FTPServer project does not support Socket and ServerSocket Factories in the DataConnection classes? The reason I ask is we would like to specify a different concrete implementation of the Java Socket and ServerSocket classes without changing the code base. I notice this is supported in the FTPClient class in the Apache commons net package and it's very useful from the FTP client perspective. Is there any chance of an update on the code?
>
> 2. Is there any reason why the DataConnection classes don't use nio server socket channels for better scaling on the sever-side to support large volumes of concurrent file transfers?
>
> Many thanks,
>
> Jon.
>
Re: Two questions on Apache Mina FTPServer
Posted by Niklas Gustavsson <ni...@protocol7.com>.
On Mon, Oct 12, 2009 at 2:08 PM, Jon Folland, Nativ Ltd
<jo...@nativ.tv> wrote:
> 1. Is there any reason why the FTPServer project does not support Socket and ServerSocket Factories in the DataConnection classes? The reason I ask is we would like to specify a different concrete
> implementation of the Java Socket and ServerSocket classes without changing the code base. I notice this is supported in the FTPClient class in the Apache commons net package and it's very useful from the
> FTP client perspective. Is there any chance of an update on the code?
One reason is that we create sockets in several different ways, some
which I don't think would work with providing factories (like from
SSLContext). But, if you can provide a patch that enables injecting
factories in a consistent way I would be happy to review it for 1.1.0.
> 2. Is there any reason why the DataConnection classes don't use nio server socket channels for better scaling on the sever-side to support large volumes of concurrent file transfers?
Only lacking time :-). Again, feel free to provide a patch.
/niklas