World: r3wp

Nice ...  I'm looking for a dialected flow control GUI tool too :)

This one, to rename a file:

RNFR ;** rename a file.
<< (
	(1 2) error
	(4 5) fail
	3 (
		>> RTNO
		<< (
			2	success
			(1 3)	error
			(4 5)	fail
		)
	)
)

I'm wondering how to interface with Amazon's simple DB.

Both Maarten and I passed the secret and access keys as parameters 
to the various functions, but I think I'd rather have a system/user 
object to store them and use them from there.

So, can we have an extensible system/user object that we can store 
user related data for use in schemes etc ?

system/contexts/user is user-specific, and schemes can store their 
data in their modules if they like.

I don't think we're going to get back system/user - all global options 
are going under system/options, including options about users.

You need to make sure that your data is task-safe too, so changeable 
global options are usually bad unless they are changed through a 
function that synchronizes access. system/contexts/user is task-specific.

Don't know whether system/options will be task-specific - most of 
its options are supposed to be read-only.

The writeable options like binary-base are supposed to be moved to 
on-the-spot function options.

so, it's system/contexts/user/user ... we can store a user object 
here?

And set-net will store the data here too?

system/contexts/user is the script context. You can put whatever 
script-accessible words you want there.

We are using modules and access functions like set-net instead of 
global options objects, for the most part.

The system structure of R3 is very different from R2.

I think we can work with everything being in system/contexts/user/user 
for the purposes of a scheme for the moment

Remember that 'user is a common script word, so that will be overwritten. 
Use module-local data, or port-specific data.

Eh?

Certainly, set-net shouldn't set anything writeable any other way.

Moving on .... an AWS:// scheme can certainly be derived from the 
http scheme

system/contexts/user is the shared "global" context for all user 
scripts (not modules), and that's why it's task-specific.

Maarten did so for Qtask, so I assume that strategy for aws:// would 
work here.

Umm.. he rewrote the http scheme I think

Yeah. Which we need to do too.

Eh?  What's wrong with Gabriele's http scheme?

Anyway, Maarten had to do all of this because he chose to use the 
REST method of interacting with aws.  To it seems much simpler to 
use SOAP instead.

Chunked encoding is broken, which is why the released version has 
been modded to use http 1.0; error handling is broken (the source 
of most chat errors); no server support; written for an older idea 
of R3 semantics.

Our HTTP scheme should work with REST out-of-the-box too.

I haven't used the prot-http ...

Is Gabriele ever coming back to work on any R3 stuff ?  Or is he 
a permanent qtask person now?

It's next on my list after 2.7.8 and R3 compressed modules/scripts.

Yes, I'm sure it will work with REST ... it's just harder to maintain 
the aws interface each time they change their specifications

So, I suspect it's easier to maintain using SOAP

I don't use their services (yet) so I wouldn't know.

Well I was reading their API again over the weekend on the plane 
:)

The main issue is that SOAP has to be over https ... so have to use 
stunnel ... that is if i can get stunnel working under windows 7

And if someone wants REST ... they can do it later on.

I would like to ask about the inner workings of port actors. How 
is it done? Let's say you define 'read actor for port. Does it mean, 
that call to "read tcp://x.x.x.x" will then pass call to port 'read 
actor?

read scheme:// 
means that you call the scheme's actor 'read

OK, but how does the native as 'read knows, what to do, if it is 
passed a port type? It is done somewhere in low level? In other words 
- which functions can be overriden that way?

'read checks to see if it is a port!, and then looks up the scheme

I read this somewhere ....

Alas my index is worse than that for the r3 docs

I don't know what the possible actors are, but I think they're the 
ones related to series.

Maybe the way to find out is to create a dummy scheme and implement 
as many dummy actors you can think of and then test them....

One of the issues with AWS is all the XML .. but I think we don't 
need a fancy XML parser .. .as it's pretty basic stuff.

Managed my first request to the Amazon SDB using the http scheme 
and SOAP

They say HTTPS is obligatory, but i used http and it was still accepted.

payload: create-sdb-message "ListDomains" listDomains 10


result: to-string write http://sdb.amazonaws.comcompose [ POST [ 
Content-Type: {text/xml; charset="utf-8"} SOAPaction: "ListDomains"] 
(payload) ]

Possible actors are the functions accepting a port! as an input.