Thread: Re: [Simpleweb-Support] simple server, mamba

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simpleweb-support

Re: [Simpleweb-Support] simple server, mamba

From: Niall G. <ni...@em...> - 2005-03-17 03:37:27

<P>Hi,</P>
<P>Yes, the Mamba standalonbe sever uses Simple 2.4. However if you would l=
ike i can email you a server implementation that uses the latest version of=
 Simple that can use templates and sessions. I am currently working on a de=
monstration package and an improved introduction so that users&nbsp;can get=
 a server up and running much easier. Let me know if you would like me to e=
mail the server implementation to you.</P>
<P>Niall</P>
<P><BR><BR>----- Original Message -----<BR>From: sszretter <SSZRETTER@HOTMA=
IL.COM><BR>To: sim...@li...<BR>Subject: [Simplew=
eb-Support] simple server, mamba<BR>Date: Wed, 16 Mar 2005 11:55:34 -0500<B=
R><BR></P>
<STYLE type=3Dtext/css><!--
blockquote, dl, ul, ol, li { padding-top: 0 ; padding-bottom: 0 }
 --></STYLE>

<DIV>I am interested in using the Simple engine to serve pages and objects,=
 but need a starting point.&nbsp; I checked out the mamba engine that uses =
Simple, but it uses version 2.4 of Simple.&nbsp;&nbsp; Mamba is probably ac=
ceptable if it could use the latest Simple, OR maybe someone has another su=
ggestion??</DIV>
<DIV><BR></DIV>
<DIV>I am mainly interested in creating a stand alone java app that serves =
up static pages and images from the hard disk, as well as objects that prod=
uce html output.&nbsp; Simple sounds like it does this, but is for me just =
missing the stand-alone app framework...</DIV>
<DIV><BR></DIV>
<DIV><BR></DIV>
<DIV><TT>-- </TT></DIV>
<DIV>cool software and services: www.eesco.com</DIV><BR>
--=20
<p>___________________________________________________________<br>Sign-up f=
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Re: [Simpleweb-Support] simple server, mamba

From: Niall G. <ni...@em...> - 2005-03-18 00:26:29

Attachments: mamba-1.1.4.jar

<P>Hi,</P>
<P>Here is the JAR file for Mamba 1.1.4. To view the source, simply extract=
 the jar file using the following command:</P>
<P>jar xvf mamba-1.1.4.jar</P>
<P>Niall</P>
<P>&nbsp;</P>
<P><BR><BR>----- Original Message -----<BR>From: sszretter <SSZRETTER@HOTMA=
IL.COM><BR>To: sim...@li...<BR>Subject: Re: [Sim=
pleweb-Support] simple server, mamba<BR>Date: Thu, 17 Mar 2005 06:25:44 -05=
00<BR><BR></P>
<STYLE type=3Dtext/css><!--
blockquote, dl, ul, ol, li { padding-top: 0 ; padding-bottom: 0 }
 --></STYLE>

<DIV><BR></DIV>
<DIV>Yes,</DIV>
<DIV><BR></DIV>
<DIV>Please email, that is great!</DIV>
<DIV>Thanks!</DIV>
<DIV>Scott</DIV>
<DIV><BR></DIV>
<BLOCKQUOTE cite=3D"" type=3D"cite">Hi,<BR></BLOCKQUOTE>
<BLOCKQUOTE cite=3D"" type=3D"cite">Yes, the Mamba standalonbe sever uses S=
imple 2.4. However if you would like i can email you a server implementatio=
n that uses the latest version of Simple that can use templates and session=
s. I am currently working on a demonstration package and an improved introd=
uction so that users&nbsp;can get a server up and running much easier. Let =
me know if you would like me to email the server implementation to you.<BR>=
</BLOCKQUOTE>
<BLOCKQUOTE cite=3D"" type=3D"cite">Niall<BR></BLOCKQUOTE>
<DIV><BR><BR></DIV>
<DIV><TT>-- </TT></DIV>
<DIV>cool software and services: www.eesco.com</DIV><BR>
--=20
<p>___________________________________________________________<br>Sign-up f=
or Ads Free at Mail.com<br>
<a href=3D"http://mail01.mail.com/scripts/payment/adtracking.cgi?bannercode=
=3Dadsfreejump01" target=3D"_blank">http://www.mail.com/?sr=3Dsignup</a></p>

Re: [Simpleweb-Support] simple server, mamba

From: Niall G. <gal...@ya...> - 2005-03-18 00:35:42

Hi,

I have had a look at you implementation in LUA. Just
wondering, you have taken a different approach on a
few things, any ideas you think might be useful in
Simple?

Niall

--- PA <pet...@gm...> wrote:
> 
> On Mar 17, 2005, at 04:37, Niall Gallagher wrote:
> 
> > I am currently working on a demonstration package
> and an improved 
> > introduction so that users can get a server up and
> running much 
> > easier.
> 
> Talking of which, albeit slightly off-topic, I'm
> somewhat 
> re-implementing simple-core in Lua [1].
> 
> Here is a brief illustration:
> 
> -- create the application server
> local anApplication = LWApplication.new( "*", 1080 )
> 
> -- register a service
> anApplication.registerService(
> LWDirectoryService.new( "/prefix/", 
> "/Directory/Path" ) )
> 
> -- start the application
> anApplication.start()
> 
> As easy as 123 :)
> 
> Gory details available online:
> 
> http://dev.alt.textdrive.com/browser/LW/
> 
> As well as a short introduction to Lua:
> 
> http://alt.textdrive.com/lua/19/lua-story-of-o
> 
> Cheers
> 
> --
> PA, Onnay Equitursay
> http://alt.textdrive.com/
> 
> [1] http://www.lua.org/about.html
> 
> 
> 
> 
> 
>
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> 

Niall Gallagher

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Re: [Simpleweb-Support] simple server, mamba

From: PA <pet...@gm...> - 2005-03-19 08:29:23

Hi Niall,

On Mar 18, 2005, at 01:35, Niall Gallagher wrote:

> I have had a look at you implementation in LUA. Just
> wondering, you have taken a different approach on a
> few things, any ideas you think might be useful in
> Simple?

Well, the implementation itself is quite different as the underlying=20
language and VM are very much different. That said, I think that=20
conceptually they are very close. Or to put it another way, Simple is=20
very much the inspiration for LuaWeb :)

Both Simple and LuaWeb provides 3 main functionalities as I see it: an=20=

event dispatcher, a core HTTP engine and the scaffolding for an app=20
server.

Concurrent event dispatching in Lua is handled quite differently than=20
in Simple as Lua provides coroutine instead of threads:

"Non-Preemptive Multithreading"
http://www.lua.org/pil/9.4.html

The end result being somewhat similar to java.nio selectors as well as=20=

what Simple itself does: limit the number to threads while keeping=20
concurrency high nonetheless.

The HTTP engine itself is quite similar in both implementation:=20
requests, responses, services, etc. In both libraries, an HTTP engine=20
is defined as a set of services which handle a subset of the URL=20
namespace.

Finally, there is the app server scaffolding. This is perhaps where=20
Simple and LuaWeb diverge the most. But this is somewhat to be expected=20=

as everyone has their own like and dislike about how an app server=20
should behave. Even ZO=CB, while happily using Simple since the summer =
of=20
2003, has its own implementation of an app server build on top of=20
Simple itself...

Perhaps one thing which would be beneficial though, is to have the=20
Simple HTTP engine emphasize the HTTP methods themselves (e.g. GET vs=20
HEAD vs OPTIONS, etc).

For example, in LuaWeb, the default HTTP service implements HEAD in=20
terms of GET. That way all the services can handle a HEAD request=20
out-of-the-box. In contrast, each Simple services has to explicitly=20
switch between the different HTTP methods in their process() method. As=20=

an illustration, contrast the implementation of=20
simple.http.serve.FileResource and LWFileService:

http://dev.alt.textdrive.com/file/LW/LWFileService.lua

The same applies for OPTIONS which is implemented by the default=20
LWService in terms of what HTTP methods a service effectively provides.

Emphasizing the HTTP methods upfront provides a nice logical=20
distinction between what your custom service needs to do, as there is=20
no need for conditional execution (e.g. GET vs POST vs DELETE).

Most likely there are other differences here and there, but, all in=20
all, I found both library quite similar in purpose if not in execution=20=

:)

Cheers

--
PA, Onnay Equitursay
http://alt.textdrive.com/

Re: [Simpleweb-Support] simple server, mamba

From: sszretter <ssz...@ho...> - 2005-03-17 11:26:04

Yes,

Please email, that is great!
Thanks!
Scott

>Hi,
>
>Yes, the Mamba standalonbe sever uses Simple 2.4. However if you 
>would like i can email you a server implementation that uses the 
>latest version of Simple that can use templates and sessions. I am 
>currently working on a demonstration package and an improved 
>introduction so that users can get a server up and running much 
>easier. Let me know if you would like me to email the server 
>implementation to you.
>
>Niall
>


-- 
cool software and services: www.eesco.com

Re: [Simpleweb-Support] simple server, mamba

From: PA <pet...@gm...> - 2005-03-17 11:49:21

On Mar 17, 2005, at 04:37, Niall Gallagher wrote:

> I am currently working on a demonstration package and an improved=20
> introduction so that users=A0can get a server up and running much=20
> easier.

Talking of which, albeit slightly off-topic, I'm somewhat=20
re-implementing simple-core in Lua [1].

Here is a brief illustration:

-- create the application server
local anApplication =3D LWApplication.new( "*", 1080 )

-- register a service
anApplication.registerService( LWDirectoryService.new( "/prefix/",=20
"/Directory/Path" ) )

-- start the application
anApplication.start()

As easy as 123 :)

Gory details available online:

http://dev.alt.textdrive.com/browser/LW/

As well as a short introduction to Lua:

http://alt.textdrive.com/lua/19/lua-story-of-o

Cheers

--
PA, Onnay Equitursay
http://alt.textdrive.com/

[1] http://www.lua.org/about.html