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Subject: RE: [httpclient] question
Date: Sun, 12 Oct 2003 17:26:11 +0300
Message-ID: <CF649A4BBB03FD4BA45F3CB28BA4AAD2A7F67A@mtx-mail>
Thread-Topic: [httpclient] question
Thread-Index: AcOQytu/lDsOYdYdT9KBxDJz/RBSpQAAHglQ
From: "Alexey Buistov" <ABuistov@miratech.ua>
To: "Jakarta Commons Users List" <commons-user@jakarta.apache.org>

Hello  Mike!

Your first solution is inapplicable in my case just because server code =
isn't available for me.
Concerning the second solution: "single request and two responses" model =
is a requierement, so=20
I have to live with it. So, as I've got from your posting it's =
unimplementable not only using
HttpClient, but using HTTP itself, am I right?

Alexey

-----Original Message-----
From: Michael Becke [mailto:becke@u.washington.edu]
Sent: Sunday, October 12, 2003 5:12 PM
To: Jakarta Commons Users List
Subject: Re: [httpclient] question


Hi Alexey,

HTTP is a single request, single response protocol.  For every request=20
GET/POST/PUT there is exactly one response.  The situation you describe=20
requires a single request and two responses.  The only way I can see to=20
solve this is to change the process on the server side.  Most likely=20
you will need to do one of the following:

  - remove the confirmation response and make the client wait for the=20
real response
  - break down the process into two requests, one to make the request to =

the server, and one to get the response.

Mike

On Sunday, October 12, 2003, at 09:16 AM, Alexey Buistov wrote:

> Hello Oleg!
>
> I've reinvestigated the problem and found that you're right. The=20
> response is being returned,
> but my problem still remains :(
>
> How should I implement the following using HttpClient?
>
>  1) send a business-request to server (no problem)
>  2) server returns confirmation response: I've just got your request=20
> and going to process it. Standby! (no problem)
>  3) server processes that request and _notifies_ the client: Done=20
> processing successfully. (that's where I've stuck. The old=20
> implementation I try to get rid of uses some kind of socket observer=20
> which queries the socket from time to time and finally gets the server =

> notification. Is this doable using HttpClient?)
>
> Alexey
>
> -----Original Message-----
> From: Oleg Kalnichevski [mailto:olegk@bluewin.ch]
> Sent: Sunday, October 12, 2003 12:48 PM
> To: Jakarta Commons Users List
> Subject: Re: [httpclient] question
>
>
> Hi Alexey,
>
> Unless I am missing something, there is absolutely nothing you need to
> change in your code.
>
>>         HttpClient client =3D new HttpClient();
>>         HostConfiguration hc =3D new HostConfiguration();
>>         hc.setHost("localhost", 1010);
>>         client.setHostConfiguration(hc);
>>         PostMethod post =3D new PostMethod();
>>         post.setRequestBody(requestBody);
>>         client.executeMethod(post);
>>
>
> HTTP is a request/response oriented protocol by definition. HttpClient
> will not return from executeMethod until it gets a response from the
> server or a socket read timeout occurs (which is off per default).
> Httpclient will continue listening on the socket at until it receives =
a
> response status line and a number of headers from the target server.
>
> Oleg
>


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